oSIST prEN 17193:2018
(Main)Clay blocks for floor plates
Clay blocks for floor plates
This European Standard specifies the characteristics and performance requirements for non-loadbearing (low non-resisting or non-resisting) or loadbearing (semi-resisting or resisting) clay blocks for the use in floor plates.
It defines the performance related to e.g. dimensional tolerances, strength, density measured according to the corresponding test methods contained in separate European Standards.
It provides for the assessment and verification of constancy of performance (AVCP) of the product to this European Standard.
This European Standard does not cover requirements for clay blocks foreseen for beam-and-block floor systems.
Deckenziegel
Diese Europäische Norm legt die Eigenschaften und Leistungsanforderungen für nicht tragende (statisch wenig mitwirkend oder statisch nicht mitwirkend) oder tragende (statisch teilweise mitwirkend oder statisch mitwirkend) keramische Zwischenbauteile zur Verwendung für Deckenplatten fest.
Sie definiert die Leistungsfähigkeit bezüglich z. B. Maßtoleranzen, Festigkeit, Dichte, gemessen nach entsprechenden Prüfverfahren aus gesonderten Europäischen Normen.
Sie ermöglicht die Bewertung und Überprüfung der Leistungsbeständigkeit (en: Assessment and Verification of Constancy of Performance, AVCP) des Produkts nach dieser Europäischen Norm.
Diese Europäische Norm umfasst keine Anforderungen an keramische Zwischenbauteile, die für Balkendecken mit Zwischenbauteilen vorgesehen sind.
Systèmes de planchers nervurés en béton à entrevous en terre cuite
Keramična polnila za etažne plošče
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 17193:2018
01-januar-2018
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Clay blocks for floor plates
Deckenziegel
Ta slovenski standard je istoveten z: prEN 17193
ICS:
91.100.25 Gradbeni izdelki iz terakote Terracotta building products
oSIST prEN 17193:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17193:2018
DRAFT
EUROPEAN STANDARD
prEN 17193
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2017
ICS 91.100.25
English Version
Clay blocks for floor plates
Deckenziegel
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 125.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17193:2017 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements — Materials and manufacture . 10
5 Finished product requirements . 10
5.1 General . 10
5.2 Dimensions and tolerances . 10
5.2.1 Dimensions . 10
5.2.2 Dimensional tolerances . 11
5.3 Configuration . 11
5.3.1 Minimum dimensions . 11
5.3.2 Configuration of blocks . 13
5.4 Density . 13
5.4.1 Gross dry density . 13
5.4.2 Net dry density . 14
5.4.3 Tolerances . 14
5.5 Surface characteristics . 14
6 Mechanical resistance . 14
6.1 General . 14
6.2 Class R1 . 14
6.3 Class R2 . 15
7 Other requirements . 15
7.1 Reaction to fire . 15
7.2 Acoustic properties . 15
7.3 Thermal properties . 16
7.4 Durability . 16
7.5 Moisture movement . 16
7.6 Dangerous substances . 16
8 Description, designation and classification of clay blocks for floor plates . 16
8.1 Description and designation . 16
8.2 Classification . 17
9 Marking . 17
10 Assessment and verification of constancy of performance (AVCP) . 17
10.1 General . 17
10.2 Product type determination . 18
10.3 Factory production control . 18
10.3.1 General . 18
10.3.2 Testing and measuring equipment . 19
10.3.3 Production equipment . 19
10.3.4 Raw materials . 19
10.3.5 Production process . 19
10.3.6 Finished product testing . 19
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10.3.7 Statistical techniques . 20
10.3.8 Marking and stock control of products . 20
10.3.9 Traceability . 20
10.3.10 Nonconforming products . 20
Annex A (normative) Test methods . 21
A.1 Measuring of dimensions and surface characteristics . 21
A.1.1 Block dimensions . 21
A.1.2 Other dimensions and configuration. 22
A.1.3 Interpretation of results . 23
A.1.4 Test report . 23
A.2 Mechanical strength . 23
A.2.1 Resistance to concentrated loads . 23
A.2.2 Longitudinal compressive strength . 25
Annex B (normative) Sampling for product type determination tests and for independent
testing of consignments . 28
B.1 General . 28
B.2 Sampling procedure . 28
B.2.1 General . 28
B.2.2 Random sampling . 28
B.2.3 Representative sampling . 28
B.2.4 Dividing the sample . 29
B.2.5 Number of blocks required for testing . 29
Annex C (informative) Guidelines for test frequencies for designing a FPC system to
demonstrate conformity of finished products with the requirements of the standard
and the declaration of the manufacturer . 30
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 32
Bibliography . 36
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European foreword
This document (prEN 17193:2017) has been prepared by Technical Committee CEN/TC 125 “Masonry”,
the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports basic requirements for construction works of the
EU Construction Products Regulation (Regulation (EU) No 305/2011).
For relationship with EU Regulation/Directive(s) see informative Annex ZA, which is an integral part of
this document.
This document was examined by and agreed with a joint working party appointed by the Liaison Group
CEN/TC 125 – CEN/TC 229.
The products are foreseen for the use in floor systems according to EN 13747.
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1 Scope
This European Standard specifies the characteristics and performance requirements for non-
loadbearing (low non-resisting or non-resisting) or loadbearing (semi-resisting or resisting) clay blocks
for the use in floor plates.
It defines the performance related to e.g. dimensional tolerances, strength, density measured according
to the corresponding test methods contained in separate European Standards.
It provides for the assessment and verification of constancy of performance (AVCP) of the product to
this European Standard.
This European Standard does not cover requirements for clay blocks foreseen for beam-and-block floor
systems.
2 Normative references
The following referenced documents are indispensable for the application 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.
EN 772-1, Methods of test for masonry units — Part 1: Determination of compressive strength
EN 772-3, Methods of test for masonry units — Part 3: Determination of net volume and percentage of
voids of clay masonry units by hydrostatic weighing
EN 772-9, Methods of test for masonry units — Part 9: Determination of volume and percentage of voids
and net volume of clay and calcium silicate masonry units by sand filling
EN 772-13, Methods of test for masonry units — Part 13: Determination of net and gross dry density of
masonry units (except for natural stone)
EN 772-16, Methods of test for masonry units — Part 16: Determination of dimensions
EN 772-19, Methods of test for masonry units — Part 19: Determination of moisture expansion of large
horizontally perforated clay masonry units
EN 1745, Masonry and masonry products — Methods for determining thermal properties
EN 12390-4:2000, Testing hardened concrete — Part 4: Compressive strength — Specification for testing
machines
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification
using data from reaction to fire tests
ISO 12491, Statistical methods for quality control of building materials and components
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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3.1
clay block
block made from clay or other argillaceous materials with or without sand, fuel or other additives fired
at a sufficiently high temperature to achieve a ceramic bond
3.2
low non-resisting or non-resisting block
block with no mechanical function in the final floor system (designated LNR or NR)
Note 1 to entry: Its only mechanical function is that of formwork during the construction of the floor system.
Floor systems built with non-resisting blocks may lack in situ structural topping.
3.3
semi-resisting block
block participating in the transfer of loads to the ribs (designated SR)
Note 1 to entry: However, its top flange alone cannot act as a compression slab in the final floor system.
Note 2 to entry: Examples for semi-resisting blocks are shown in Figure 1.
Figure 1 — Examples of semi-resisting clay blocks
3.4
resisting block
block with the same functions as semi-resisting blocks but whose top flange plays a role as compression
zone in the final floor system (designated RR)
Note 1 to entry: Examples for resisting blocks are shown in Figure 2.
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Key
1 rib
2 top flange
3 tongue
Figure 2 — Examples of resisting clay blocks
3.5
recess
single (see Figure 4 b)) or double (see Figure 4 c)) indentation at the top flange of the block to be filled
with concrete (with or without reinforcement) to make cross joints
Note 1 to entry: According to the depth of the recesses the designation is:
F: blocks with full recesses (see Figure 4)
P: blocks with partial recesses (see Figure 3)
3.6
top flange
cross section area with the height s where longitudinal compression can be transferred
1
Note 1 to entry: The height of the compression zone is limited to the height of the top flange (see Figure 2):
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a) Section b) Block with single recess c) Block with double recess
Figure 3 — Block with top flange (limited compression zone)
a) Section b) Block with single full recess c) Block with double full recess
Figure 4 — Block without limited compression zone
3.7
complementary block
block of shorter length, width or height designed to aid the construction of floors having dimensions
which are not multiples of the dimensions of blocks
3.8
rib
reinforced concrete ribs are structural elements realized in corresponding recesses of the floor system,
formed by interposed rows of clay blocks (see Figure 2)
3.9
tongue
shape given to the block to enable reinforced concrete ribs to be cast between the blocks
Note 1 to entry: Examples of tongues are shown in Figure 5.
Figure 5 — Examples of tongues
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3.10
groove
upper indentation in the top flange of resisting blocks in which concrete and longitudinal reinforcement
bars can be located (see Figure 6)
Key
1 groove
2 concrete rib
3 clay block
4 tongue
Figure 6 — Details of resisting clay blocks
3.11
shell
peripheral material between a perforation and the surface of a clay block
3.12
web
solid material between the perforations in a clay block
3.13
combined thickness of webs and shells
sum of the thicknesses of the vertical shells and webs in transverse direction from one rib of a clay
block to the opposite rib along whichever path, via the formed voids, gives the smallest value, expressed
as a percentage of the unit width
3.14
Category I clay blocks
blocks with a declared compressive strength with a probability of failure to reach it not exceeding 5 %
Note 1 to entry: This may be determined via the mean or characteristic value.
3.15
Category II clay blocks
blocks not intended to comply with the level of confidence of Category I blocks
3.16
product group
products from one manufacturer having common values for one or more characteristics
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3.17
product type
set of representative performance levels or classes of a construction product, in relation to its essential
characteristics, produced using a given combination of raw materials or other elements in a specific
production process
4 Requirements — Materials and manufacture
See 3.1, 10.3.4 and 10.3.5.
5 Finished product requirements
5.1 General
The requirements and properties specified in this standard shall be defined in terms of the test methods
and other procedures referred to in this European Standard.
The conformity criteria given in the following subclauses relate to product type determination
(see 10.2) and, when relevant, to consignment testing (see Annex B). For the compressive strength of
Category I blocks use a 50 % fractile (p = 0,50) for mean values and a confidence level of 95 %.
For production evaluation, the manufacturer shall define the conformity criteria in the factory
production control documentation (see 10.3).
5.2 Dimensions and tolerances
5.2.1 Dimensions
The relevant dimensions of a clay block shall be declared by the manufacturer in mm (see Figure 7).
Key
b width s width of groove
S0 height t depth of groove
l length s height of recess
t
a width of tongue s total depth of recess
b
s1 thickness of top flange
Figure 7 — Dimensions
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The measurement procedure shall be in accordance with Annex A.
5.2.2 Dimensional tolerances
5.2.2.1 Tolerances of the mean value
The manufacturer shall also declare which of the tolerance categories according to Table 1 for mean
values, the clay blocks fulfil.
Table 1 — Tolerance categories for mean values
width of
other
width b height h length l tongue and
dimensions
groove
T1 ±10 mm
T2 ±5 mm
(−5;0) % (0;+5) % (−5;0) % ±3 mm ±5 mm
but not more but not more but not more
T3
than than than
(−12;0) mm (0;+12) mm (−12;0) mm
Lower tolerances may be declared by the manufacturer.
5.2.2.2 Range
The maximum range for the width (i.e. the difference for a same batch between the largest and smallest
determined dimension on individual blocks) to be found within the test sample shall be less than or
equal to 2,5 % but not more than 12 mm of the declared value.
Lower range may be declared by the manufacturer.
5.3 Configuration
5.3.1 Minimum dimensions
For blocks with tongue, the minimum dimensions for the width of a tongue shall be 25 mm.
The design of the ribs and tongues and upper grooves shall be such as to enable longitudinal
reinforcement and the associated concrete cover to be placed and the tongue to be at least 5 mm thick
at its thinnest point.
The area of the largest of any formed voids for semi-resisting blocks (SR) and resisting blocks (RR) shall
be:
2
• 6 cm for blocks without limited compression zone
2
• for blocks with limited compression zone 6 cm in the top flange
For resisting blocks (RR) and semi-resistant blocks (SR) at the faces there shall, and at the top and
bottom there may, be rendering keyways approximately 2 mm deep and not wider than 10 mm. The
sections between rendering keyways shall be not wider than 30 mm. At the grooves, the shell shall be at
least 8 mm thick.
The manufacturer shall also declare which of the dimension categories according to Table 2 and Table 3
regarding the minimum thickness of the shells and the top flange the clay blocks fulfil.
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Table 2 — Dimension categories regarding the shells of the blocks
Minimum
thickness of
shells
SH1 6 mm
SH2 8 mm
SH3 12 mm
Table 3 — Dimension categories regarding the top flange of the blocks
Minimum height s
1
TF1 30 mm
TF2 see Table 5
TF3 Block without limited compression zone
The blocks shall fulfil the minimum dimensions for total depth of recess s , the height of recess s and
b t
for blocks with limited compression zone the thickness of top flange s1 according to Table 4 (blocks
without limited compression zone) and Table 5 (blocks with top flange).
Table 4 — Minimum dimensions (mm) for blocks without limited compression zone
Height s min. recess
0
total depth height s
t
s
b
≤ 265 40 s s - 10
t = 0
265 < s ≤ 340 50
0
Table 5 — Minimum dimensions (mm) for blocks with top flange
Total height Min. recess Min. thickness
s of top flange
0
Total depth Height
s
1
s
b s
t
< 115 40 45 50
115 ≤ s ≤ 140 40 50 55
0
140 < s ≤ 165 40 55 60
0
165 < s ≤ 190 40 60 65
0
190 < s ≤ 215 40 65 70
0
215 < s ≤ 240 40 70 75
0
240 < s ≤ 265 40 75 80
0
265 < s ≤ 290 50 80 85
0
290 < s ≤ 315 50 85 90
0
315 < s ≤ 340 50 90 95
0
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In order to enable the adjacent in situ beam to be wider at the top, the semi-resisting blocks shall be
narrow and flat to a depth of not less than x = 30 mm, and then gently tapered to a depth of x = 50 mm
1 2
from the top of the block (see Figure 1).
5.3.2 Configuration of blocks
All relevant dimensions of a clay block shall be declared by the manufacturer (see Figure 1 to 7).
When relevant to the uses for which the blocks are placed on the market the following shall also be
declared:
— shape and pattern of perforation;
— minimum thickness of the horizontal web;
— the minimum overall thickness of vertical webs and shells of resisting blocks; measurement shall be
taken half height of the block
— the design value of the web and shell thickness of resisting blocks according to Table 6.
Table 6 — Design web and shell thicknesses (mm) of resisting blocks
Combined thickness of Design web and
webs and shells shell thickness
[%]
≥ 20 50
≥ 24 60
≥ 28 70
≥ 32 80
5.4 Density
5.4.1 Gross dry density
When relevant to the uses for which the unit is placed on the marked, the gross dry density shall be
declared by the manufacturer.
The manufacturer may also inform in what way the declared gross dry density fits into a national
classification system.
The manufacturer shall also declare which of the deviation categories in 5.4.3 applies.
This declaration may be made for evaluation of
— loading;
— airborne sound insulation;
— resistance to fire;
— thermal insulation.
In addition, the manufacturer may declare the minimum and maximum individual values of gross dry
density.
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5.4.2 Net dry density
When relevant to the uses for which the unit is put on the market, the net dry density shall be declared
by the manufacturer.
The manufacturer may also inform in what way the declared net dry density fits into a national
classification system.
In addition, the manufacturer may declare the minimum and maximum individual values of net dry
density.
5.4.3 Tolerances
When clay blocks are sampled from a consignment in accordance with Annex A and tested in
accordance with EN 772-13, the mean gross and net dry density derived from measurements of the test
sample shall not differ from the manufacturer's declared dry density by more than one of the following
categories:
D1: 10 %
D2: 5 %
or
Dm: a deviation in % declared as a whole number by the manufacturer (may be wider or closer than the
other categories).
5.5 Surface characteristics
Blocks shall not have cracks or spalling which may be detrimental to their mechanical performance.
For test method see A.1.2.6.
6 Mechanical resistance
6.1 General
The manufacturer shall declare which class of mechanical resistance the blocks fulfil.
6.2 Class R1
The following properties shall be verified by direct load testing made on samples taken following
proper statistical criteria (see Annex A, ISO 12491):
— the resistance to concentrated loads for each type of block (see a));
— the longitudinal compressive strength for resisting and semi-resisting blocks (see b)).
a) Resistance to concentrated loads:
The blocks shall be classified in type defined by the characteristic failure load obtained in the test of the
resistance to concentrated loads described in A.2.1.
Table 7 gives the minimum characteristic failure load (5 % fractile) for each type of block.
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