Building construction machinery and equipment -- Concrete pumps

This document specifies the procedure and requirements for examining the technical commercial specifications of factory new piston-type concrete pump and rotary-type concrete pump as defined in ISO 21573‑1. It applies to mobile concrete pumps (with or without concrete-placing boom) and stationary concrete pumps.

Machines et matériels pour la construction des bâtiments -- Pompes à béton

General Information

Status
Published
Publication Date
20-Dec-2020
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
02-Dec-2020
Completion Date
02-Dec-2020
Ref Project

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INTERNATIONAL ISO
STANDARD 21573-2
Second edition
2020-12
Building construction machinery and
equipment — Concrete pumps —
Part 2:
Procedure for examination of
technical parameters
Machines et matériels pour la construction des bâtiments — Pompes
à béton —
Partie 2: Procédure pour la détermination des paramètres techniques
Reference number
ISO 21573-2:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21573-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 21573-2:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test items of performances ....................................................................................................................................................................... 2

5 Overall parameters ............................................................................................................................................................................................ 2

5.1 Operating mass ....................................................................................................................................................................................... 2

5.1.1 Measuring conditions .................................................................................................................................................. 2

5.1.2 Measuring apparatus and accuracy requirement................................................................................ 2

5.1.3 Measuring procedure ................................................................................................................................................... 2

5.2 Overall dimensions .............................................................................................................................................................................. 4

5.2.1 Conditions for taking measurements ............................................................................................................. 4

5.2.2 Measuring apparatus and accuracy requirement................................................................................ 4

5.2.3 Measuring procedure ................................................................................................................................................... 4

6 Pumping performance .................................................................................................................................................................................10

6.1 Piston pump ...........................................................................................................................................................................................10

6.1.1 Pumping output .............................................................................................................................................................10

6.1.2 Concrete delivery pressure ..................................................................................................................................15

6.2 Rotary pump ..........................................................................................................................................................................................16

6.2.1 Single-roller rotary pump (see A.1) .............................................................................................................16

6.2.2 Double-roller rotary pump (see A.2) ...........................................................................................................19

7 Feeding height of hopper ..........................................................................................................................................................................21

7.1 Measuring conditions .....................................................................................................................................................................21

7.2 Measurement equipment and accuracy requirement ........................................................................................22

7.3 Measuring procedure .....................................................................................................................................................................22

8 Performance of water pump..................................................................................................................................................................22

8.1 Measuring conditions .....................................................................................................................................................................22

8.2 Measurement equipment and accuracy requirement ........................................................................................23

8.3 Measuring procedure .....................................................................................................................................................................23

8.3.1 Relief pressure of water system .......................................................................................................................23

8.3.2 Water output without load ...................................................................................................................................23

9 Performance of concrete-placing boom ....................................................................................................................................23

9.1 Measuring conditions .....................................................................................................................................................................23

9.2 Measurement equipment and accuracy requirement ........................................................................................23

9.3 Measuring procedure .....................................................................................................................................................................24

9.3.1 Maximum length of the concrete-placing boom ................................................................................24

9.3.2 Maximum height of the concrete-placing boom ................................................................................25

9.3.3 Concrete-placing boom section folding angle ......................................................................................25

9.3.4 Length of concrete-placing boom section ...............................................................................................25

9.3.5 Concrete-placing boom operation zone ....................................................................................................26

9.3.6 Minimum unfolding/folding time and average speed of concrete-placing

boom section ....................................................................................................................................................................26

9.3.7 Maximum slewing speed .......................................................................................................................................27

9.3.8 Maximum slewing angle .........................................................................................................................................28

9.3.9 Concrete-placing boom system pressure .................. ...............................................................................29

10 Performance of outriggers ......................................................................................................................................................................31

10.1 Span of outrigger ................................................................................................................................................................................31

10.1.1 Measuring conditions ...............................................................................................................................................31

10.1.2 Measurement equipment and accuracy requirement ..................................................................31

10.1.3 Measuring procedure ................................................................................................................................................31

10.2 Maximum load on each outrigger ........................................................................................................................................33

© ISO 2020 – All rights reserved iii
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ISO 21573-2:2020(E)

10.2.1 Measuring conditions ...............................................................................................................................................33

10.2.2 Measuring apparatus and accuracy requirement.............................................................................33

10.2.3 Measuring procedure ................................................................................................................................................33

10.3 Speed of outriggers movement ..............................................................................................................................................34

10.3.1 Measuring conditions ...............................................................................................................................................34

10.3.2 Measuring apparatus and accuracy requirement.............................................................................34

10.3.3 Measuring procedure ................................................................................................................................................34

10.4 Outriggers system pressure ......................................................................................................................................................37

10.4.1 Measuring conditions ...............................................................................................................................................37

10.4.2 Measuring apparatus and accuracy requirement.............................................................................37

10.4.3 Measuring procedure ................................................................................................................................................37

Annex A (informative) Theoretic pumping output and delivery pressure of rotary pump ......................39

iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 21573-2:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 195, Building construction machinery and

equipment, Subcommittee SC 1, Machinery and equipment for concrete work.

This second edition cancels and replaces the first edition (ISO 21573-2:2008), which has been

technically revised.
The main changes compared to the previous edition are as follows:

— added the actual pumping output and efficiency measurement under defined working conditions

(e.g. concrete grade and pumping speed) in order to describe the actual pumping performance;

— added the following characteristic parameters measuring methods:
— operating mass;
— overall dimensions including length (L), width (W) and height (H);
— delivery pressure of pump for driving the distributing and outriggers;
— maximum load on each outrigger;
— outrigger speed;

— complemented performance measuring methods and indicated conditions in the following clauses/

subclauses:
— concrete delivery pressure;
— feeding height of hopper;
— length, height and angle of the boom;
— speed of the concrete-placing boom;
© ISO 2020 – All rights reserved v
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ISO 21573-2:2020(E)
— slewing speed;
— slewing angle;
— span of outrigger.
A list of all parts in the ISO 21573 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
vi © ISO 2020 – All rights reserved
---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 21573-2:2020(E)
Building construction machinery and equipment —
Concrete pumps —
Part 2:
Procedure for examination of technical parameters
1 Scope

This document specifies the procedure and requirements for examining the technical commercial

specifications of factory new piston-type concrete pump and rotary-type concrete pump as defined in

ISO 21573-1.

It applies to mobile concrete pumps (with or without concrete-placing boom) and stationary

concrete pumps.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 21573-1, Building construction machinery and equipment — Concrete pumps — Part 1: Terminology

and commercial specifications
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 21573-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
single-roller rotary pump

rotary-type concrete pump that discharges fresh concrete by squeezing an elastic tube by one

rotating roller
3.2
double-roller rotary pump

rotary-type concrete pump that discharges fresh concrete by squeezing an elastic tube between double

rotating rollers
3.3
concrete storage, mixing and feeding device
device for agitating and discharging concrete or mortar
3.4
outrigger span

actual distance between adjacent centrelines of vertical cylinders with outriggers fully extended or

projection distance of the actual distance on the reference plane
© ISO 2020 – All rights reserved 1
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ISO 21573-2:2020(E)
4 Test items of performances
The following performances are measured or tested in this examination:
a) overall parameters;
b) pumping performance;
c) feeding height of hopper;
d) performance of the water pump;
e) performance of the concrete-placing boom;
f) performance of the outrigger.
5 Overall parameters
5.1 Operating mass
5.1.1 Measuring conditions
Measure the mass of the concrete pump under the following conditions:
— with the pump fully operational and all systems functional;
— including all standard equipment following the manufacturer's specifications;
— with a driver of mass 75 kg;
— with the fuel tank full;
— with cleaning water, cooling, lubrication and hydraulic systems full;

— with the vehicle parked steadily, the engine switched off, the gearbox shifted to neutral gear, and

the brake released.

— with the weighing of the machine which should be done with the brakes of the truck released, for

safety reasons, apply wheel stoppers on 2 wheels at least.
5.1.2 Measuring apparatus and accuracy requirement
Truck scale should be used as the measuring apparatus with an accuracy of 0,5 %.
5.1.3 Measuring procedure
5.1.3.1 Measuring method

The weighing platform of the scale shall be big enough to accommodate all points of support of the

machinery at one time.

The entry ground of the weighing platform shall be kept at the same level with the weighing platform.

Measure the operating mass as shown in Figure 1.

a) Drive the concrete pump at low speed from one direction into the weighing platform, stop it

steadily, and measure the mass G of the concrete pump.

b) Make a turnaround, drive it onto the weighing platform from the opposite direction, stop it steadily,

and measure the mass G of the concrete pump again.
2 © ISO 2020 – All rights reserved
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ISO 21573-2:2020(E)
a) The first mass measurement
b) The second mass measurement
Key
1 concrete pump
2 weighing platform
3 driving direction
Figure 1 — Diagram for mass measuring of concrete pump
5.1.3.2 Calculation method
Calculate the mass of the concrete pump using Formula (1):
GG'"+
G = −−()G 75 (1)
0 1
where
© ISO 2020 – All rights reserved 3
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ISO 21573-2:2020(E)
is the mass of the concrete pump (kg);
' "

G , G is the mass of the concrete pump measured by driving it onto the weighing platform from two

0 0
directions respectively (kg);
is the actual driver weight (kg).
Record the measurement results in Table 1.
Table 1 — Measurement record — Mass of the concrete pump
Date of measuring Place
Model of concrete pump Serial number
Apparatus Truck scale
Remarks
Characteristics Parameter Measured data Parameter Calculated value
Operating mass
5.2 Overall dimensions
5.2.1 Conditions for taking measurements

Measure the overall dimensions of the concrete pump under the following conditions:

— on the rigid and horizontal ground;

— under non-working state (with the concrete-placing boom folded and the outriggers retracted);

— with the wheels straight forward;
— with the tire pressure required;

— with the doors of the driver cab and hood, base-frame panels and hopper cover closed;

— with the radio antenna retracted;

— not including the license plate, but including the bracket of the license plate.

5.2.2 Measuring apparatus and accuracy requirement
Use a tape measure or comparable apparatus with an accuracy of ±1 mm.
5.2.3 Measuring procedure
5.2.3.1 General

The measurement shall be taken between impenetrable, horizontal or vertical, theoretical planes.

Measure the overall length, overall width, overall height and wheelbase of several typical types of the

concrete pump as shown in Figure 3, Figure 4 and Figure 5. Record the measured values in Table 2,

Table 3 and Table 4.

a) Place the machine on a horizontal area. The machine shall be put into the transport or travel mode

as specified by the manufacturer.
4 © ISO 2020 – All rights reserved
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ISO 21573-2:2020(E)

b) The machine shall be placed between two virtual impenetrable planes. Move the virtual planes as

close together as possible without penetrating them. No elements of the machine other than the

specified exemptions are allowed to penetrate the virtual plane. The planes are defined in Figure 2.

c) The measurement taken is the distance between the two parallel planes.
Figure 2 — Planes definition
Key
X X-axi
Z Z-axis
Y Y-axis
1 XY plane
2 parallel to XZ plane
3 parallel to YZ plane
5.2.3.2 Overall length
a) Determine the closest XY plane to the front and rear of the machine.
b) The measurement taken is the distance between the two parallel planes.
c) Record the value as the overall length L (mm) of the machine.
5.2.3.3 Overall width

a) Determine the closest YZ plane to the left and right of the machine, excluding the following

protrusion parts: the rear-view mirrors, side indicator light and flexible mudguards.

b) The measurement taken is the distance between the two parallel planes.
c) Record the value as the overall width W (mm) of the machine.
5.2.3.4 Overall height
a) Determine the closest XZ plane to the top of the machine and ground.
b) The measurement taken is the distance between the two parallel planes.
© ISO 2020 – All rights reserved 5
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ISO 21573-2:2020(E)
c) Record the value as the overall height H (mm) of the machine.
5.2.3.5 Wheelbase

a) Determine the XY plane passing through the centrelines of two adjacent axles. Measure the distance

between two planes.

For XY plane passing through the centrelines, place marks on the ground for convenience of

measuring.

b) Record the values as individual wheelbase L , L , L , L , L (mm) of the machine.

1 2 3 4 5
a) 4-axis chassis
b) 5-axis chassis
6 © ISO 2020 – All rights reserved
---------------------- Page: 12 ----------------------
ISO 21573-2:2020(E)
c) 6-axis chassis
Key
L overall length of machine 1 front
W overall width of machine 2 rear
H overall height of machine 3 right
L wheelbase between 1st and 2nd axles 4 left
L wheelbase between 2nd and 3rd axle 5 plane XZ
L wheelbase between 3rd and 4th axles 6 plane YZ
L wheelbase between 4th and 5th axles
L wheelbase between 5th and 6th axles

Figure 3 — Overall dimensions of the truck mounted concrete pump with concrete-placing boom

© ISO 2020 – All rights reserved 7
---------------------- Page: 13 ----------------------
ISO 21573-2:2020(E)
Key
L overall length of machine
W overall width of machine
H overall height of machine
L wheelbase between 1st and 2nd axles
1 front
2 rear
3 right
4 left
5 plane XZ
6 plane YZ

Figure 4 — Overall dimensions of the truck-mounted concrete pump for connection of a

conveying pipeline
8 © ISO 2020 – All rights reserved
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ISO 21573-2:2020(E)
Key
L overall length of machine
W overall width of machine
H overall height of machine
1 front
2 rear
3 right
4 left
5 plane XZ
6 plane YZ
Figure 5 — Overall dimensions of the trailer-type concrete pump

Table 2 — Measurement record — Overall dimensions of the truck mounted concrete pump

Date of measuring Place
Model of concrete
Serial number
pump
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall width, W mm
Overall height, H mm
L - Wheelbase between 1st and
mm
2nd axles
Overall dimen- L – Wheelbase between 2nd and
mm
sions 3rd axles
L – Wheelbase between 3rd and
mm
4th axles
L – Wheelbase between 4th and
mm
5th axles
L – Wheelbase between 5th and
mm
6th axles

Table 3 — Measurement record — Overall dimensions of the truck-mounted concrete pump for

connection of a conveying pipeline
Date of measuring Place
Model of concrete
Serial number
pump
© ISO 2020 – All rights reserved 9
---------------------- Page: 15 ----------------------
ISO 21573-2:2020(E)
Table 3 (continued)
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall width, W mm
Overall dimensions Overall height, H mm
Wheelbase, L mm

Table 4 — Measurement record — Overall dimensions of the trailer-type concrete pump

Date of measuring Place
Model of concrete pump Serial number
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall dimensions Overall width, W mm
Overall height, H mm
6 Pumping performance
6.1 Piston pump
6.1.1 Pumping output
6.1.1.1 General

The volumetric output of the concrete pump is indicated by the theoretical pumping output.

Calculate the theoretical pumping output using Formula (2).
28−
QD=×π /46 ××Sn ×× 10 (2)
th t
where
Q is the theoretical output volume (m /h);
is the diameter of concrete cylinder (mm);
S is the stroke length of concrete piston (mm);

is the number of strokes per minute (min ), accounting for acceleration and deceleration phases

and the time of shifting of the valve system.

The actual pumping output is related to the volumetric efficiency η and the measuring method is

defined in 6.1.1.2 to 6.1.1.5.
6.1.1.2 Measuring conditions

Measure the actual pumping output of the concrete pump under the following conditions:

— on the solid and level ground which meets the requirements for pumping and vehicle trafficability;

— with no rain or snow;
— with a temperature at 0 °C to 40 °C.
10 © ISO 2020 – All rights reserved
---------------------- Page: 16 ----------------------
ISO 21573-2:2020(E)
6.1.1.3 Measuring apparatus and accuracy requirement
The apparatus shall be as follows:
a) stopwatch with an accuracy of 0,1 %;
b) electronic scale with an accuracy of ±0,5 g with the range of 5 kg to 20 kg;
c) weighing sensor with an accuracy of 1 % with the range of ≥1 500 kg;

d) concrete weighing device which shall be able to accommodate at least 10 pump cycles;

e) concrete storage, mixing and feeding device;
f) concrete delivery pipeline;
g) equipment for recycling of concrete.
6.1.1.4 Measuring preparations

a) Adopt the concrete with slump at 18 cm to 21 cm. An example of recommended ratio is listed in

Table 5.
Table 5 — Measurement report — Example of concrete ratio
Material quantity per m concrete (kg/
Material name Material requirement
m )
Cement General Portland cement 42.5R 330
Water Tap water 166
Natural sand (not less than 80 % mass percent-
Sand 900
age of fine aggregates <2,5 mm)
Fine aggregate(sand): 5 mm to 20 mm
Aggregate 1 080
Coarse aggregate(gravel): 20 mm to 40 mm
Admixture Coal ash 80
Additive Water reducer 6
b) Set up the measuring system as shown in Figure 6.

— Extend the outriggers of the concrete pump till reaching the working state; the hopper of

concrete pump is located under the discharge hopper of the concrete storage, mixing and

feeding device.

— For the concrete pump without concrete-placing boom, connect its outlet port with the concrete

pipeline and place the other end of the pipeline delivery system above the weighing hopper

of the weighing device, as shown in Figure 6 a). The pipeline delivery system shall be 52,5 m

in horizontal distance, 7 m in vertical height, and 125 mm in inside diameter. The pipeline

dimensions are listed in Table 6.

— For the concrete pump with concrete-placing boom, fully unfold the concrete-placing boom to

arched configuration and place the end hose above the weighing hopper of the weighing device,

7 m in vertical height, as shown in Figure 6 b).

NOTE 1 Concrete storage, mixing and feeding device shown in the Figure 6 is demonstrated by a truck mixer

and a similar agitating equipment can also be used.
© ISO 2020 – All rights reserved 11
---------------------- Page: 17 ----------------------
ISO 21573-2:2020(E)
a) Concrete pump without concrete-placing boom
b) Concrete pump with concrete-placing boom
Key
1 concrete pump without concrete-placing boom
2 concrete storage, mixing and feeding device
3 weighing device
4 pipeline delivery system
5 concrete pump with concrete-placing boom
Figure 6 — Actual pumping output measuring system
Table 6 — Measurement re
...

INTERNATIONAL ISO
STANDARD 21573-2
Second edition
Building construction machinery and
equipment — Concrete pumps —
Part 2:
Procedure for examination of
technical parameters
Machines et matériels pour la construction des bâtiments — Pompes
à béton —
Partie 2: Procédure pour la détermination des paramètres techniques
PROOF/ÉPREUVE
Reference number
ISO 21573-2:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 21573-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 21573-2:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test items of performances ....................................................................................................................................................................... 2

5 Overall parameters ............................................................................................................................................................................................ 2

5.1 Operating mass ....................................................................................................................................................................................... 2

5.1.1 Measuring conditions .................................................................................................................................................. 2

5.1.2 Measuring apparatus and accuracy requirement................................................................................ 2

5.1.3 Measuring procedure ................................................................................................................................................... 2

5.2 Overall dimensions .............................................................................................................................................................................. 4

5.2.1 Conditions for taking measurements ............................................................................................................. 4

5.2.2 Measuring apparatus and accuracy requirement................................................................................ 4

5.2.3 Measuring procedure ................................................................................................................................................... 4

6 Pumping performance .................................................................................................................................................................................10

6.1 Piston pump ...........................................................................................................................................................................................10

6.1.1 Pumping output .............................................................................................................................................................10

6.1.2 Concrete delivery pressure ..................................................................................................................................15

6.2 Rotary pump ..........................................................................................................................................................................................16

6.2.1 Single-roller rotary pump (see A.1) .............................................................................................................16

6.2.2 Double-roller rotary pump (see A.2) ...........................................................................................................19

7 Feeding height of hopper ..........................................................................................................................................................................21

7.1 Measuring conditions .....................................................................................................................................................................21

7.2 Measurement equipment and accuracy requirement ........................................................................................22

7.3 Measuring procedure .....................................................................................................................................................................22

8 Performance of water pump..................................................................................................................................................................22

8.1 Measuring conditions .....................................................................................................................................................................22

8.2 Measurement equipment and accuracy requirement ........................................................................................23

8.3 Measuring procedure .....................................................................................................................................................................23

8.3.1 Relief pressure of water system .......................................................................................................................23

8.3.2 Water output without load ...................................................................................................................................23

9 Performance of concrete-placing boom ....................................................................................................................................23

9.1 Measuring conditions .....................................................................................................................................................................23

9.2 Measurement equipment and accuracy requirement ........................................................................................23

9.3 Measuring procedure .....................................................................................................................................................................24

9.3.1 Maximum length of the concrete-placing boom ................................................................................24

9.3.2 Maximum height of the concrete-placing boom ................................................................................25

9.3.3 Concrete-placing boom section folding angle ......................................................................................25

9.3.4 Length of concrete-placing boom section ...............................................................................................25

9.3.5 Concrete-placing boom operation zone ....................................................................................................26

9.3.6 Minimum unfolding/folding time and average speed of concrete-placing

boom section ....................................................................................................................................................................26

9.3.7 Maximum slewing speed .......................................................................................................................................27

9.3.8 Maximum slewing angle .........................................................................................................................................28

9.3.9 Concrete-placing boom system pressure .................. ...............................................................................29

10 Performance of outriggers ......................................................................................................................................................................31

10.1 Span of outrigger ................................................................................................................................................................................31

10.1.1 Measuring conditions ...............................................................................................................................................31

10.1.2 Measurement equipment and accuracy requirement ..................................................................31

10.1.3 Measuring procedure ................................................................................................................................................31

10.2 Maximum load on each outrigger ........................................................................................................................................33

© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO 21573-2:2020(E)

10.2.1 Measuring conditions ...............................................................................................................................................33

10.2.2 Measuring apparatus and accuracy requirement.............................................................................33

10.2.3 Measuring procedure ................................................................................................................................................33

10.3 Speed of outriggers movement ..............................................................................................................................................34

10.3.1 Measuring conditions ...............................................................................................................................................34

10.3.2 Measuring apparatus and accuracy requirement.............................................................................34

10.3.3 Measuring procedure ................................................................................................................................................34

10.4 Outriggers system pressure ......................................................................................................................................................37

10.4.1 Measuring conditions ...............................................................................................................................................37

10.4.2 Measuring apparatus and accuracy requirement.............................................................................37

10.4.3 Measuring procedure ................................................................................................................................................37

Annex A (informative) Theoretic pumping output and delivery pressure of rotary pump ......................39

iv PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 21573-2:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 195, Building construction machinery and

equipment, Subcommittee SC 1, Machinery and equipment for concrete work.

This second edition cancels and replaces the first edition (ISO 21573-2:2008), which has been

technically revised.
The main changes compared to the previous edition are as follows:

— added the actual pumping output and efficiency measurement under defined working conditions

(e.g concrete grade and pumping speed, etc.) in order to describe the actual pumping performance;

— added the following characteristic parameters measuring methods:
— operating mass;
— overall dimensions including length (L), width (W) and height (H);
— delivery pressure of pump for driving the distributing and outriggers;
— maximum load on each outrigger;
— outrigger speed;

— complemented performance measuring methods and indicated conditions in the following clauses/

subclauses:
— concrete delivery pressure;
— feeding height of hopper;
— length, height and angle of the boom;
— speed of the concrete-placing boom;
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ISO 21573-2:2020(E)
— slewing speed;
— slewing angle;
— span of outrigger.
A list of all parts in the ISO 21573 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
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INTERNATIONAL STANDARD ISO 21573-2:2020(E)
Building construction machinery and equipment —
Concrete pumps —
Part 2:
Procedure for examination of technical parameters
1 Scope

This document specifies the procedure and requirements for examining the technical commercial

specifications of factory new piston-type concrete pump and rotary-type concrete pump as defined in

ISO 21573-1.

It applies to mobile concrete pumps (with or without concrete-placing boom) and stationary

concrete pumps.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 21573-1, Building construction machinery and equipment — Concrete pumps — Part 1: Terminology

and commercial specifications
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 21573-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
single-roller rotary pump

rotary-type concrete pump that discharges fresh concrete by squeezing an elastic tube by one

rotating roller
3.2
double-roller rotary pump

rotary-type concrete pump that discharges fresh concrete by squeezing an elastic tube between double

rotating rollers
3.3
concrete storage, mixing and feeding device
device for agitating and discharging concrete or mortar
3.4
outrigger span

actual distance between adjacent centrelines of vertical cylinders with outriggers fully extended or

projection distance of the actual distance on the reference plane
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ISO 21573-2:2020(E)
4 Test items of performances
The following performances are measured or tested in this examination:
a) overall parameters;
b) pumping performance;
c) feeding height of hopper;
d) performance of the water pump;
e) performance of the concrete-placing boom;
f) performance of the outrigger.
5 Overall parameters
5.1 Operating mass
5.1.1 Measuring conditions
Measure the mass of the concrete pump under the following conditions:
— with the pump fully operational and all systems functional;
— including all standard equipment following the manufacturer's specifications;
— with a driver of mass 75 kg;
— with the fuel tank full;
— with cleaning water, cooling, lubrication and hydraulic systems full;

— with the vehicle parked steadily, the engine switched off, the gearbox shifted to neutral gear, and

the brake released.

— with the weighing of the machine which should be done with the brakes of the truck released, for

safety reasons, apply wheel stoppers on 2 wheels at least.
5.1.2 Measuring apparatus and accuracy requirement
Truck scale should be used as the measuring apparatus with an accuracy of 0,5 %.
5.1.3 Measuring procedure
5.1.3.1 Measuring method

The weighing platform of the scale shall be big enough to accommodate all points of support of the

machinery at one time.

The entry ground of the weighing platform shall be kept at the same level with the weighing platform.

Measure the operating mass as shown in Figure 1.

a) Drive the concrete pump at low speed from one direction into the weighing platform, stop it

steadily, and measure the mass G of the concrete pump.

b) Make a turnaround, drive it onto the weighing platform from the opposite direction, stop it steadily,

and measure the mass G of the concrete pump again.
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ISO 21573-2:2020(E)
a) The first mass measurement
b) The second mass measurement
Key
1 concrete pump
2 weighing platform
3 driving direction
Figure 1 — Diagram for mass measuring of concrete pump
5.1.3.2 Calculation method
Calculate the mass of the concrete pump using Formula (1):
GG'"+
G = −−()G 75 (1)
0 1
where
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ISO 21573-2:2020(E)
is the mass of the concrete pump (kg);
' "

G , G is the mass of the concrete pump measured by driving it onto the weighing platform from two

0 0
directions respectively (kg);
is the actual driver weight (kg).
Record the measurement results in Table 1.
Table 1 — Measurement record — Mass of the concrete pump
Date of measuring Place
Model of concrete pump Serial number
Apparatus Truck scale
Remarks
Characteristics Parameter Measured data Parameter Calculated value
Operating mass
5.2 Overall dimensions
5.2.1 Conditions for taking measurements

Measure the overall dimensions of the concrete pump under the following conditions:

— on the rigid and horizontal ground;

— under non-working state (with the concrete-placing boom folded and the outriggers retracted);

— with the wheels straight forward;
— with the tire pressure required;

— with the doors of the driver cab and hood, base-frame panels and hopper cover closed;

— with the radio antenna retracted;

— not including the license plate, but including the bracket of the license plate.

5.2.2 Measuring apparatus and accuracy requirement
Use a tape measure or comparable apparatus with an accuracy of ±1 mm.
5.2.3 Measuring procedure
5.2.3.1 General

The measurement shall be taken between impenetrable, horizontal or vertical, theoretical planes.

Measure the overall length, overall width, overall height and wheelbase of several typical types of the

concrete pump as shown in Figure 3, Figure 4 and Figure 5. Record the measured values in Table 2,

Table 3 and Table 4.

a) Place the machine on a horizontal area. The machine shall be put into the transport or travel mode

as specified by the manufacturer.
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b) The machine shall be placed between two virtual impenetrable planes. Move the virtual planes as

close together as possible without penetrating them. No elements of the machine other than the

specified exemptions are allowed to penetrate the virtual plane. The planes are defined in Figure 2.

c) The measurement taken is the distance between the two parallel planes.
Figure 2 — Planes definition
Key
X X-axi
Z Z-axis
Y Y-axis
1 XY plane
2 parallel to XZ plane
3 parallel to YZ plane
5.2.3.2 Overall length
a) Determine the closest XY plane to the front and rear of the machine.
b) The measurement taken is the distance between the two parallel planes.
c) Record the value as the overall length L (mm) of the machine.
5.2.3.3 Overall width

a) Determine the closest YZ plane to the left and right of the machine, excluding the following

protrusion parts: the rear-view mirrors, side indicator light and flexible mudguards.

b) The measurement taken is the distance between the two parallel planes.
c) Record the value as the overall width W (mm) of the machine.
5.2.3.4 Overall height
a) Determine the closest XZ plane to the top of the machine and ground.
b) The measurement taken is the distance between the two parallel planes.
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c) Record the value as the overall height H (mm) of the machine.
5.2.3.5 Wheelbase

a) Determine the XY plane passing through the centrelines of two adjacent axles. Measure the distance

between two planes.

For XY plane passing through the centrelines, place marks on the ground for convenience of

measuring.

b) Record the values as individual wheelbase L , L , L , L , L (mm) of the machine.

1 2 3 4 5
a) 4-axis chassis
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ISO 21573-2:2020(E)
b) 5-axis chassis
c) 6-axis chassis
Key
L overall length of machine 1 front
W overall width of machine 2 rear
H overall height of machine 3 right
L wheelbase between 1st and 2nd axles 4 left
L wheelbase between 2nd and 3rd axle 5 plane XZ
L wheelbase between 3rd and 4th axles 6 plane YZ
L wheelbase between 4th and 5th axles
L wheelbase between 5th and 6th axles

Figure 3 — Overall dimensions of the truck mounted concrete pump with concrete-placing boom

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ISO 21573-2:2020(E)
Key
L overall length of machine
W overall width of machine
H overall height of machine
L wheelbase between 1st and 2nd axles
1 front
2 rear
3 right
4 left
5 plane XZ
6 plane YZ

Figure 4 — Overall dimensions of the truck-mounted concrete pump for connection of a

conveying pipeline
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ISO 21573-2:2020(E)
Key
L overall length of machine
W overall width of machine
H overall height of machine
1 front
2 rear
3 right
4 left
5 plane XZ
6 plane YZ
Figure 5 — Overall dimensions of the trailer-type concrete pump

Table 2 — Measurement record — Overall dimensions of the truck mounted concrete pump

Date of measuring Place
Model of concrete
Serial number
pump
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall width, W mm
Overall height, H mm
L - Wheelbase between 1st and
mm
2nd axles
Overall dimen- L – Wheelbase between 2nd and
mm
sions 3rd axles
L – Wheelbase between 3rd and
mm
4th axles
L – Wheelbase between 4th and
mm
5th axles
L – Wheelbase between 5th and
mm
6th axles

Table 3 — Measurement record — Overall dimensions of the truck-mounted concrete pump for

connection of a conveying pipeline
Date of measuring Place
Model of concrete
Serial number
pump
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ISO 21573-2:2020(E)
Table 3 (continued)
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall width, W mm
Overall dimensions Overall height, H mm
Wheelbase, L mm

Table 4 — Measurement record — Overall dimensions of the trailer-type concrete pump

Date of measuring Place
Model of concrete pump Serial number
Characteristics Measured data Unit Remarks
Overall length, L mm
Overall dimensions Overall width, W mm
Overall height, H mm
6 Pumping performance
6.1 Piston pump
6.1.1 Pumping output
6.1.1.1 General

The volumetric output of the concrete pump is indicated by the theoretical pumping output.

Calculate the theoretical pumping output using Formula (2).
28−
QD=×π /46 ××Sn ×× 10 (2)
th t
where
Q is the theoretical output volume (m /h);
is the diameter of concrete cylinder (mm);
S is the stroke length of concrete piston (mm);

is the number of strokes per minute (min ), accounting for acceleration and deceleration phases

and the time of shifting of the valve system.

The actual pumping output is related to the volumetric efficiency η and the measuring method is

defined in 6.1.1.2 to 6.1.1.5.
6.1.1.2 Measuring conditions

Measure the actual pumping output of the concrete pump under the following conditions:

— on the solid and level ground which meets the requirements for pumping and vehicle trafficability;

— with no rain or snow;
— with a temperature at 0 °C to 40 °C.
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ISO 21573-2:2020(E)
6.1.1.3 Measuring apparatus and accuracy requirement
The apparatus shall be as follows:
a) stopwatch with an accuracy of 0,1 %;
b) electronic scale with an accuracy of ±0,5 g with the range of 5 kg to 20 kg;
c) weighing sensor with an accuracy of 1 % with the range of ≥1 500 kg;

d) concrete weighing device which shall be able to accommodate at least 10 pump cycles;

e) concrete storage, mixing and feeding device;
f) concrete delivery pipeline;
g) equipment for recycling of concrete.
6.1.1.4 Measuring preparations

a) Adopt the concrete with slump at 18 cm to 21 cm. An example of recommended ratio is listed in

Table 5.
Table 5 — Measurement report — Example of concrete ratio
Material quantity per m concrete (kg/
Material name Material requirement
m )
Cement General portland cement 42.5R 330
Water Tap water 166
Natural sand (not less than 80 % masspercentage
Sand 900
of fine aggregates <2,5 mm)
Fine aggregate(sand): 5 mm to 20 mm
Aggregate 1 080
Coarse aggregate(gravel): 20 mm to 40 mm
Admixture Coal ash 80
Additive Water reducer 6
b) Set up the measuring system as shown in Figure 6.

— Extend the outriggers of the concrete pump till reaching the working state; the hopper of

concrete pump is located under the discharge hopper of the concrete storage, mixing and

feeding device.

— For the concrete pump without concrete-placing boom, connect its outlet port with the concrete

pipeline and place the other end of the pipeline delivery system above the weighing hopper

of the weighing device, as shown in Figure 6 a). The pipeline delivery system shall be 52,5 m

in horizontal distance, 7 m in vertical height, and 125 mm in inside diameter. The pipeline

dimensions are listed in Table 6.

— For the concrete pump with concrete-placing boom, fully unfold the concrete-placing boom to

arched configuration and place the end hose above the weighing hopper of the weighing device,

7 m in vertical height, as shown in Figure 6 b).

NOTE 1 Concrete storage, mixing and feeding device shown in the Figure 6 is demonstrated by a truck mixer

and a similar agitating equipment can also be used.
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ISO 21573-2:2020(E)
a) Concrete pump without concr
...

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