Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates)

This European Standard specifies the characteristics and performance requirements of aggregate concrete masonry units made from dense and lightweight aggregates or a combination of both for which the main intended uses are common, facing or exposed masonry in load bearing or non-load bearing building and civil engineering applications. The units are suitable for all forms of walling, including single leaf, external leaf to chimneys, cavity wall, partitions, retaining, and basement. They can provide fire protection, thermal insulation, sound insulation and sound absorption. This European Standard includes aggregate concrete masonry units of an overall non-rectangular parallelepiped shape, especially shaped and accessory units. It defines the performance related to e.g. strength, density, dimensional accuracy, and provides for the evaluation of conformity of the product to this European Standard. The marking requirements for products covered by this European Standard is also included. This European Standard does not specify standard sizes for aggregate concrete masonry units, nor standard work dimensions and angles of specially shaped aggregate concrete masonry units. It does not cover storey height panels, chimney flue linings nor units intended for use as a damp proof course. It does not cover units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire.

Festlegungen für Mauersteine - Teil 3: Mauersteine aus Beton (mit dichten und porigen Zuschlägen)

Spécifications pour éléments de maçonnerie - Partie 3: Éléments de maçonnerie en béton de granulats (granulats courants et légers)

Specifikacija za zidake - 3. del: Betonski zidaki (kompaktni in lahki agregati)

General Information

Status
Not Published
Public Enquiry End Date
29-Oct-2014
Current Stage
5520 - Unique Acceptance Procedure (UAP) (Adopted Project)
Start Date
18-Aug-2014
Due Date
05-Jan-2015
Completion Date
18-Dec-2014

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SLOVENSKI STANDARD
SIST EN 771-3:2011/kFprA1:2014
01-oktober-2014
Specifikacija za zidake - 3. del: Betonski zidaki (kompaktni in lahki agregati)
Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and
lightweight aggregates)
Festlegungen für Mauersteine - Teil 3: Mauersteine aus Beton (mit dichten und porigen
Zuschlägen)
Spécifications pour éléments de maçonnerie - Partie 3: Éléments de maçonnerie en
béton de granulats (granulats courants et légers)
Ta slovenski standard je istoveten z: EN 771-3:2011/FprA1
ICS:
91.100.30 Beton in betonski izdelki Concrete and concrete
products
SIST EN 771-3:2011/kFprA1:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 771-3:2011/kFprA1:2014

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SIST EN 771-3:2011/kFprA1:2014

EUROPEAN STANDARD
FINAL DRAFT
EN 771-3:2011
NORME EUROPÉENNE

EUROPÄISCHE NORM
FprA1
July 2014
ICS 91.100.30
English Version
Specification for masonry units - Part 3: Aggregate concrete
masonry units (Dense and lightweight aggregates)
Spécifications pour éléments de maçonnerie - Partie 3: Festlegungen für Mauersteine - Teil 3: Mauersteine aus
Éléments de maçonnerie en béton de granulats (granulats Beton (mit dichten und porigen Zuschlägen)
courants et légers)
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 125.

This draft amendment A1, if approved, will modify the European Standard EN 771-3:2011. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.

This draft amendment 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 771-3:2011/FprA1:2014 E
worldwide for CEN national Members.

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
Contents
Page
Foreword .3
1 Modification to the Foreword .4
2 Modification to the Scope .4
3 Modification to 5.1, General .4
4 Addition of a new subclause 5.14 .4
5 Modification to 6.1, Description and designation of units .4
6 Modification to Clause 8, Evaluation of conformity .4
7 Modification to 8.1, General .5
8 Modification to 8.2, Initial type testing .5
9 Modification to 8.3.1, General .5
10 Modification to 8.3.10, Nonconforming products .6
11 Modification to Annex A .6
12 Modification to A.1 .6
13 Modification to A.2.5 .6
14 Modification to Annex B .6
15 Modification to Annex ZA .6

2

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
Foreword
This document (EN 771-3:2011/FprA1:2014) 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 Unique Acceptance Procedure.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
NOTE Due to fact that the Framework Partnership Agreement between the Commission and CEN & CENELEC is not
signed yet, there are currently no New Approach Consultants in place for 2014. Therefore the provisions of CEN-
CENELEC Guide 15 cannot be met.
This shall not prevent the processing of draft standards nor the offering of harmonized standards to the Commission. In
particular, draft standards can be sent to vote without Consultant assessment.
This note will be removed from the Foreword of the finalized publication.


3

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
1 Modification to the Foreword
th th
Replace the 5 and the 6 paragraphs with the following:
“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/Directives, see informative Annex ZA, which is an integral part of this
document.".
2 Modification to the Scope
rd
Replace the 3 paragraph with the following:
“It defines the performance related to e.g. strength, density, dimensional accuracy, and provides for the
assessment and verification of constancy of performance (AVCP) of the product to this European Standard.
The marking requirement for products covered by this European Standard is included.”.
3 Modification to 5.1, General
rd
In the 3 paragraph, replace “relates to initial type testing” by “relate to product type determination”.
4 Addition of a new subclause 5.14
Add a new clause:
“5.14 Dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
sometimes content, when construction products covered by this standard are placed on those markets.
In the absence of European harmonized test methods, verification and declaration of release/content should
be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is available at
the Construction web site on EUROPA accessed through: http://ec.europa.eu/enterprise/construction/cpd-ds/.".
5 Modification to 6.1, Description and designation of units
Replace the NOTE with the following:
“NOTE Refer to ZA.3 for CE marking.
6 Modification to Clause 8, Evaluation of conformity
Replace the title with the following:
“Assessment and verification of constancy of performance (AVCP)”.
4

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
7 Modification to 8.1, General
st
In the 1 paragraph, replace the word “values” with “performance”.
In the list, replace “Initial type testing of the product” with “product type determination”.
nd
In the 2 paragraph, replace “initial type tests” with “product type determination tests”.
8 Modification to 8.2, Initial type testing
Replace the title with the following:
“Product type determination”.
st nd
Replace the 1 and 2 paragraphs with:
“After completion of the development of a new product type and before placing on the market, appropriate
product type determination shall be carried out to confirm that the properties predicted from the development
meet the requirements of this standard and the performance of the characteristics to be declared for the
product.
Whenever a major change in the source, blend, or nature of raw materials occurs, or when there is a change
in processing conditions, leading to what the manufacturer considers will constitute a new product type being
produced, the appropriate product type determination shall be repeated.”.
th th
Replace the 4 and 5 paragraphs with:
“In the product type determination process a manufacturer may take in consideration already existing results.
A manufacturer may use the product type determination results determined by someone else (e.g. another
manufacturer or a research, technology & development service provider) to justify his own declaration of
performance regarding a product that is manufactured according to the same design and with raw materials,
constituents and manufacturing methods of the same kind, provided that permission is given by the owner of
the results, and the results are valid for both products.”.
Delete the NOTE.
th th
Replace the 7 and 8 paragraphs with:
“Sampling for product type determination shall be in accordance with Annex A.
The results of the product type determination shall be recorded.”.
Add the following NOTE after the last paragraph:
“NOTE For the performance characteristics to be determined in order to address the Declaration of Performance and
CE marking provisions, see Table ZA.1.”.
9 Modification to 8.3.1, General
st
In the 1 paragraph, replace “values” with “performance of the characteristics”.
5

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
10 Modification to 8.3.10, Nonconforming products
st
Replace the 1 paragraph with the following:
“The procedure for dealing with nonconforming products shall be documented. Products that do not conform
with the requirements or the performance of the product type shall be segregated and marked accordingly.
However, these products may be reassessed by the manufacturer and assigned to a different product type.”.
11 Modification to Annex A
Replace the title with the following:
“Sampling for determination of product type and for independent testing of consignments”.
12 Modification to A.1
Replace A.1 with the following:
"A.1 General
This sampling procedure shall apply for product type determination and in the event that there is a
requirement for an assessment of product compliance by independent testing.
Only those characteristics declared by the manufacturer shall be assessed by this procedure.
The number of units required to determine compliance with the specification shall be sampled from a
3
consignment of up to 200 m or part thereof (see Table A.1).".
13 Modification to A.2.5
Replace the penultimate row in Table A.1 with:

EN 1052-3 Type I Type II
specimen specimen
Shear bond strength 5.12
Procedure A 27 18
Procedure B 18 12
”.
14 Modification to Annex B
Replace the title with the following:
“Compliance criteria for product type determination and for independent testing of consignments”.
15 Modification to Annex ZA
Replace Annex ZA with the following new annex:
6

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)

Annex ZA
(informative)

Clauses of this European Standard addressing the provisions
of the EU Construction Products Regulation
ZA.1 Scope and relevant characteristics
This European Standard has been prepared under a Mandate M/116 (as amended) “Masonry and related
products” given to CEN by the European Commission and the European Free Trade Association.
If this European Standard is cited in the Official Journal of the European Union (OJEU), the clauses of this
standard, shown in this annex, are considered to meet the provisions of the relevant mandate under the
Regulation (EU) No. 305/2011.
This annex deals with the CE marking of the aggregate concrete masonry units intended for the uses
indicated in Table ZA.1 and shows the relevant clauses applicable.
This annex has the same scope as in clause 1 of this standard related to the aspects covered by the mandate
and is defined by Table ZA.1.
Table ZA.1 — Relevant clauses for aggregate concrete in masonry walls, columns and partitions
Product: Aggregate concrete masonry units
Intended use: In masonry walls, columns and partitions
Clauses in this European
Regulatory levels and/or
Essential characteristics Standard related to Notes
classes
essential characteristics
Dimensions and 5.2.1 Dimensions None Declared values, in mm, and
dimensional tolerances (for tolerance category
5.2.2 Dimensional
units intended to be used in
tolerances
elements subject to
structural requirements)
Configuration (for units 5.3.1 Configuration None Declared configuration as
intended to be used in illustrated or described
elements subject to
structural requirements)
2
Compressive strength (for 5.5.1 Compressive None
Declared value in N/mm
units intended to be used in strength
(with indication of
elements subject to
characteristic or mean,
structural requirements)
direction of load and unit
category)
Dimensional stability (for 5.9 Moisture movement None Declared value of moisture
units intended to be used in movement in mm/m
elements subject to
structural requirements)
7

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SIST EN 771-3:2011/kFprA1:2014
EN 771-3:2011/FprA1:2014 (E)
Table ZA.1 (continued)
Product: Aggregate concrete masonry units
Intended use: In masonry walls, columns and partitions
Clauses in this European
Regulatory levels and/or
Essential characteristics Standard related to Notes
classes
essential characteristics
Bond strength (for units 5.12 Shear bond strength None Fixed value; or
intended to be used in
Declared value of initial
elements subject to
2

shear strength in N/mm
structural requirements)
a
5.13 Flexural bond None Declared value
strength
Reaction to fire (for units 5.11 Reaction to fire Euroclass A1 to F Declared reaction to fire
intended to be used in Class A1 to F
elements subject to fire
requirements)
2
Water absorption (for units 5.8 Water absorption by None
Declared value, in g/m s; or
intended to be used in damp capillarity
declared text:
proof courses and or in
“Not to be left exposed”
external elements with
exposed face)
Water vapour permeability 5.10 Water vapour None Declared coefficient
(for units intended to be permeability (tabulated water vapour
used in external elements) diffusion coefficient)
Direct airborne sound 5.4.1 Gross density None Declared value a) of gross
3
insulation (in end
density in kg/m
conditions)/[Density and
5.3.1 Configuration Declared configuration as
configuration] (for units to be
illustrated or described
used in elements subject to
5.2 Dimensions and
acoustic requirements)
tolerances
Thermal resistance/[Density 5.6 Thermal properties None Provided value of thermal
and configuration] (for units conductivity
intended to be used in (λ -value) in W/m·K,
10,dry,unit
elements subject to thermal
and the means of evaluation
insulation requirements)
used or density and
configuration
Durability against 5.7 Durability None Declared value; or declared
freeze/thaw text:
“Not to be left exposed”
Dangerous substances 5.14 Dangerous None
substances
a
As requested by assessment method used.

The declaration of the product performance related to certain essential characteristics is not required in those
Member States (MS) where there are no regulatory requirements on these essential characteristic for the
intended use of the product.
In this case, manufacturers placing
...

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