ISO 21573-1:2024

Building construction machinery and equipment - Concrete pumps - Part 1: Commercial specifications

This document establishes the content for commercial specifications for concrete pumps which are used on building sites for concrete-mix delivery.

Machines et matériels pour la construction des bâtiments - Pompes à béton — Partie 1: Spécifications commerciales

General Information

• Status: Published
• Publication Date: 25-Aug-2024
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 91.220 - Construction equipment
• Technical Committee: ISO/TC 195/SC 1 - Machinery and equipment for concrete work
• Drafting Committee: ISO/TC 195/SC 1 - Machinery and equipment for concrete work
• Current Stage: 6060 - International Standard published
• Start Date: 26-Aug-2024
• Due Date: 09-Dec-2024
• Completion Date: 26-Aug-2024

Relations

• Revises: ISO 21573-1:2014 - Building construction machinery and equipment - Concrete pumps - Part 1: Terminology and commercial specifications
• Effective Date: 10-Dec-2022

Overview

ISO 21573-1:2024 - Building construction machinery and equipment - Concrete pumps - Part 1: Commercial specifications defines the required content of commercial specifications for concrete pumps used on building sites for concrete-mix delivery. This third edition updates classifications and technical content (harmonized with ISO 21573-2) and describes the machine characteristics that manufacturers, buyers and specifiers should record and communicate.

Key topics and technical requirements

The standard sets out the information to be included in commercial specifications, including:

• Classification of concrete pumps by:

  • type of pumping unit (piston, rotary, vacuum, etc.),
  • piston-type valve system (S-type, swing valve, gate valve, etc.),
  • mode/frequency of transportation (truck-, trailer-, skid-, crawler-mounted, stationary),
  • form of conveying (integral distributing boom, separate boom, pipe/hose run),
  • drive system (fuel engine, electric, hybrid - newly clarified in 2024 edition).

• General characteristics to specify:

  • model, manufacturer, maximum theoretical pumping output (m3/h), maximum delivery pressure (MPa),
  • pumping cylinder diameter and stroke, strokes per minute, outlet diameter, hopper capacity,
  • drive details (power, torque, RPM, electrical ratings or combined hybrid values),
  • operating and equipment mass with defined conditions.

• Concrete compatibility:

  • maximum applicable size of aggregate and minimum applicable slump.

• Drive and power options:

  • vehicle engine or dedicated engine/electric/hybrid drive for hydraulic systems.

• Dimensional characteristics:

  • overall length, width, height, wheelbase, feeding height, and maximum reach (vertical/horizontal) for distributing booms.

• Cleaning system:

  • conveying-pipe cleaning method (water or pneumatic), performance (flow, pressure), tank and pump specs.

• Distributing boom and outriggers:

  • boom model, unfolding angles, slewing, pipe diameter, end-hose length, section count, boom mass (with/without concrete),
  • outrigger span (front, rear, lateral) and load capacity.

• Hydraulic system and chassis data:

  • number and function of hydraulic pumps, oil tank capacity, control type, pump pressures and flow rates,
  • truck chassis model, axle loads, and other general data.

Annex A provides illustrative examples of pump designs and assemblies.

Practical applications and users

ISO 21573-1:2024 is used to:

• Prepare clear commercial specifications and tender documents for procurement of concrete pumps.
• Enable fair comparison of products from different manufacturers.
• Support manufacturers in publishing consistent equipment data.
• Guide site managers, equipment inspectors, rental companies, design engineers and regulatory authorities when assessing suitability, safety margins and logistics (transport, outrigger footprint, reach).
• Work in conjunction with ISO 21573-2, which covers procedures for examination of technical parameters.

Keywords: ISO 21573-1:2024, concrete pumps, commercial specifications, concrete-mix delivery, distributing boom, piston-type pump, maximum theoretical pumping output, maximum delivery pressure, outrigger span, hydraulic system, cleaning system.

Standards Content (Sample)

International
Standard
ISO 21573-1
Third edition
Building construction machinery and
2024-08
equipment — Concrete pumps —
Part 1:
Commercial specifications
Reference number
© ISO 2024
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification of the concrete pumps . 2
5 Commercial specifications . 4
5.1 General characteristics .4
5.2 Applicable concrete .5
5.3 Drive.5
5.4 Dimensional characteristics .5
5.5 Cleaning system . . .6
5.6 Distributing boom .6
5.7 Outrigger component . .6
5.8 Hydraulic system .7
5.9 Truck chassis .7
5.10 Trailer chassis .8
5.11 Attachments and tools .8
Annex A (informative) Examples of concrete pump designs and their assemblies . 9

iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 third edition cancels and replaces the second edition (ISO 21573-1:2014), which has been technically
revised.
The main changes are as follows:
— in Clause 3:
— the definition for “maximum theoretical pumping output” has been updated;
— the definitions for the following terms have been added:
— maximum delivery pressure;
— outrigger span;
— in Table 1, the new classification “drive system” with the following sub-items has been added:
— fuel engine driven;
— electric power driven;
— hybrid power driven;
— in Table 1, the new type “crawler” with sub-item "crawler pump" has been added in the “Mode or
frequency of transportation” row;
— in Table 1, the new classification “Type of piston-type concrete pump valve system” with the following
sub-items has been added:
— Swing valve;
iv
— Gate valve;
— in Clause 5, the following subclauses have been updated to match the content in ISO 21573-2:
— general characteristics (5.1);
— dimensional characteristics (5.4);
— distributing boom (5.6);
— outrigger components (5.7);
— in Annex A, Figure A.15 has been added.
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.

v
Introduction
This document deals with concrete pumps used on building sites for concrete-mix delivery. It defines
technical characteristics of the relevant machines. Annex A provides examples of current structures of
concrete pumps and their principles of operation.

vi
International Standard ISO 21573-1:2024(en)
Building construction machinery and equipment —
Concrete pumps —
Part 1:
Commercial specifications
1 Scope
This document establishes the content for commercial specifications for concrete pumps which are used on
building sites for concrete-mix delivery.
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 11375:1998, Building construction machinery and equipment — Terms and definitions
ISO 21573-2:2020, Building construction machinery and equipment — Concrete pumps — Part 2: Procedure for
examination of technical parameters
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11375 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
piston-type concrete pump
pump in which a piston is used to impart energy to the concrete mix, with the intent of transporting the mix
to and through the conveying pipe and/or hose
Note 1 to entry: See Figure A.1.
3.2
rotary-type concrete pump
pump in which a peristaltic action is used to impart energy to the concrete mix with the intent of transporting
the mix to and through the conveying pipe and/or hose
Note 1 to entry: See Figures A.6, A.7, A.8 and A.9.
3.3
stationary-type concrete pump
skid, rail or wheeled-chassis mounted concrete pump intended for long-term operation on one building site
Note 1 to entry: See Figure A.13.

3.4
piston-type concrete pump valve system
system composed of cut-off valves successively locking and opening concrete mix flow from the hopper to
the concrete cylinder and from the latter to the conveying pipe
Note 1 to entry: See Figures A.2, A.3, A.4 and A.5.
Note 2 to entry: The operation of the valves is synchronized so that, when the concrete-mix flow from the hopper to
the concrete cylinder is opened, the flow to the conveying pipe is closed. Various types of valve systems are identified.
3.5
distributing boom
folded boom with fixed concrete mix conveying pipe the role of which is to deliver concrete mix to work
areas within its reach
Note 1 to entry: See Figures A.10 and A.14.
Note 2 to entry: The boom has the possibility of folding in the vertical plane and slewing around the vertical axis.
Typically, a rubber hose is fixed to the end of the conveying pipe to facilitate concrete-mix distribution.
3.6
maximum applicable size of aggregate
largest size of aggregate that can be consistently delivered through the concrete pump without blockage,
including any conveying pipe that is normally supplied on the finished product
3.7
minimum applicable slump
minimum value of slump applicable for conveying by concrete pump
3.8
maximum theoretical pumping output
maximum theoretical volume of concrete per hour calculated based on the designed values of the delivery
mechanism of the concrete pump
3.9
maximum delivery pressure
maximum pressure in the delivery line system including the case of blockage in the delivery line system
3.10
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
Note 1 to entry: The outrigger span shall be measured in accordance with ISO 21573-2:2020, Clause 10.
4 Classification of the concrete pumps
In general, concrete pumps are classified by the following five main cha
...