SIST EN 771-5:2011/kFprA1:2014

Specification for masonry units - Part 5: Manufactured stone masonry units

This European Standard specifies the characteristics and performance requirements of manufactured stone masonry units for which the main intended uses are facing or exposed masonry in load bearing or non-load bearing building and civil engineering applications. The units are suitable for all forms of coursed or random masonry walling, including single leaf, cavity, partition, retaining and the external masonry to chimneys. They can provide fire protection, thermal insulation, sound insulation and sound absorption. This standard covers concrete masonry units manufactured to resemble natural stone using casting or pressing techniques with or without textured surfaces produced, by casting, splitting, washing, blasting or tooling and with or without variable outline effects. It covers homogeneous masonry units and those consisting of different facing and backing concrete mixes but excludes those manufactured with an adhesive bonded decorative face. This standard does not cover masonry units intended to conform to EN 771-3. It defines the performance related to e.g. strength, density, dimensional accuracy, surface appearance and provides for the evaluation of conformity of the product to this European Standard. The marking requirements for products covered by this European Standard are also included. This European Standard does not apply to storey height panels, masonry units used for chimney flues or units manufactured with an adhesive bonded decorative face. It does not include products intended to be used as a damp proof course nor does it specify standard sizes for manufactured stone masonry units or work dimensions and angles of specially shaped units. 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 5: Betonwerksteine

Spécifications pour éléments de maçonnerie - Partie 5: Eléments de maçonnerie en pierre reconstituée

Specifikacija za zidake - 5. del: Zidaki iz umetnega kamna

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Oct-2014
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: CAA - Mineral binders and masonry
• Current Stage: 5520 - Unique Acceptance Procedure (UAP) (Adopted Project)
• Start Date: 18-Aug-2014
• Due Date: 05-Jan-2015
• Completion Date: 18-Dec-2014
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/116 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on masonry and related products
• Ref Project: EN 771-5:2011/FprA1 - Specification for masonry units - Part 5: Manufactured stone masonry units

Relations

• Consolidated By: SIST EN 771-5:2011+A1:2015 - Specification for masonry units - Part 5: Manufactured stone masonry units
• Effective Date: 18-Jan-2023
• Amends: SIST EN 771-5:2011 - Specification for masonry units - Part 5: Manufactured stone masonry units
• Effective Date: 01-Oct-2014

Overview

SIST EN 771-5:2011/kFprA1:2014 is a European Standard developed by CEN that specifies the requirements and performance characteristics of manufactured stone masonry units. These masonry units are primarily used for facing or exposed masonry in both load-bearing and non-load-bearing building and civil engineering structures. Made from concrete, these units are manufactured to resemble natural stone through casting or pressing techniques, featuring various surface textures and finishes.

This standard addresses key attributes such as strength, density, dimensional accuracy, surface appearance, and fire resistance. It also outlines procedures for assessment and verification of constancy of performance (AVCP) and conformity marking, aligning with EU Construction Products Regulation 305/2011.

Key Topics

• Scope and Applications: Suitable for multiple masonry wall types including coursed or random walling, cavity walls, partitions, retaining walls, and chimney exteriors.
• Material Characteristics: Concrete-based stone masonry units that may be homogeneous or have different facing and backing concrete mixes but exclude adhesive bonded decorative faces.
• Performance Requirements:
  • Compressive strength and flexural bond strength
  • Density and dimensional tolerances related to wall stability and construction precision
  • Thermal insulation, sound insulation, and sound absorption capabilities
  • Fire resistance classification from A1 to F
  • Water absorption and moisture movement for durability
  • Durability under freeze-thaw cycles
• Manufacturing and Testing:
  • Product type determination tests replacing initial type testing
  • Sampling procedures for quality control and independent testing
  • Evaluation and documentation of factory production control (FPC)
• Conformity and Marking:
  • CE marking requirements for market placement within EU
  • Declaration of performance including essential characteristics for intended uses
• Dangerous Substances: Requirements for verification and declaration of substance release according to national regulations when applicable.

Applications

Manufactured stone masonry units complying with SIST EN 771-5:2011/kFprA1:2014 are widely used in:

• Building Construction: For both structural and aesthetic external facades, partition walls, chimney cladding, and decorative elements mimicking natural stone.
• Civil Engineering: Retaining walls, sound barriers, and thermal insulation layers owing to their robust mechanical and physical properties.
• Enhancing Building Performance: Units provide fire protection, improve thermal insulation, and offer soundproofing which aids compliance with building codes.
• Restoration Projects: Units designed to replicate natural stone textures are suitable for preserving heritage aesthetics while meeting modern performance standards.

Related Standards

SIST EN 771-5:2011/kFprA1:2014 complements other masonry and construction product standards including:

• EN 771-3: Specification for calcium silicate masonry units, which excludes adhesive bonded decorative faces as covered in EN 771-5.
• EN 1052-3: Testing masonry bond strength, referenced for shear and flexural bond strength tests.
• EN 1996 Eurocode 6: Design of masonry structures-used alongside EN 771 series for compliance in structural applications.
• EU Regulation (EU) No 305/2011: Construction Products Regulation that governs CE marking and product performance declarations.
• CEN/TC 125: Technical committee responsible for standards development in masonry and its components.

Practical Value

By adhering to SIST EN 771-5:2011/kFprA1:2014, manufacturers ensure their manufactured stone masonry units meet strict EU regulatory requirements for safety, durability, and performance. Architects and engineers benefit from clear specifications that help in selecting appropriate masonry units with predictable mechanical and thermal properties. Contractors gain confidence in product consistency due to required factory production control and product type determination procedures. Finally, the standard supports sustainable building practices through durable, fire-resistant, and thermally efficient masonry solutions.

Keywords: manufactured stone masonry units, masonry standard EN 771-5, concrete masonry, masonry performance requirements, masonry CE marking, masonry product conformity, masonry fire resistance, thermal insulation masonry, masonry dimensional accuracy, masonry bond strength

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2014
Specifikacija za zidake - 5. del: Zidaki iz umetnega kamna
Specification for masonry units - Part 5: Manufactured stone masonry units
Festlegungen für Mauersteine - Teil 5: Betonwerksteine
Spécifications pour éléments de maçonnerie - Partie 5: Eléments de maçonnerie en
pierre reconstituée
Ta slovenski standard je istoveten z: EN 771-5:2011/FprA1
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 771-5:2011
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
July 2014
ICS 91.100.30
English Version
Specification for masonry units - Part 5: Manufactured stone
masonry units
Spécifications pour éléments de maçonnerie - Partie 5: Festlegungen für Mauersteine - Teil 5: Betonwerksteine
Eléments de maçonnerie en pierre reconstituée
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 771-5:2011. 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 771-5:2011/FprA1:2014 E
worldwide for CEN national Members.

Contents
Page
Foreword .3
1 Modification to the Foreword .4
2 Modification to the Scope .4
3 Modification to 5.1, General .4
4 Modification to 5.5.1, Declared value .4
5 Addition of a new subclause 5.14 .4
6 Modification to Clause 8, Evaluation of conformity .4
7 Modifications to 8.1, General .4
8 Modifications to 8.2, Initial type testing .5
9 Modification to 8.3.1, General .5
10 Modification to 8.3.10 .5
11 Modification to Annex A .6
12 Modifications to A.1 .6
13 Modification to A.2.5 .6
14 Modification to Annex ZA .6

Foreword
This document (EN 771-5:2011/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.

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/Directive(s), see informative Annex ZA, which is an integral part of this
document.”.
2 Modification to the Scope
rd
In the 3 paragraph, replace “evaluation of conformity” with “assessment and verification of constancy of
performance (AVCP)”.
3 Modification to 5.1, General
rd
In the 3 paragraph, replace “initial type testing“ with “product type determination“.
4 Modification to 5.5.1, Declared value
nd
In 2 paragraph, delete “shall be declared”.
5 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/.”.
6 Modification to Clause 8, Evaluation of conformity
Replace the title with the following:
“Assessment and verification of constancy of performance (AVCP)”.
7 Modifications 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 Modifications 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 into consideration pre-existing results.
A manufacturer may use the product type determination results carried out 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 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”.
10 Modification to 8.3.10
st
Replace the 1 paragraph with:
“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 heading by the following:
“Sampling for determination of product type and for independent testing of consignments”.
12 Modifications to A.1
st
In the 1 paragraph, replace “for initial type testing” with “for product type determination”.
nd
In the 2 paragraph, replace “properties” with “characteristics”.
In the NOTE, replace “conformity control” with “assessment and verification of constancy of performance”.
13 Modification to A.2.5
Replace the last row in Table A.1 with:
“
EN 1052-3 Type I Type II
specimen specimen
Bond strength 5.12
Procedure A 27 18
Procedure B 18 12
”.
14 Modification to Annex ZA
Replace Annex ZA with the following new annex:
“
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 manufactured stone 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 manufactured stone masonry units in masonry walls, columns and
partitions
Product: Manufactured stone masonry units
Intended use: In masonry walls, columns and partitions
Clauses in this European Regulatory
Essential Characteristics Standard related to essential levels and/or Notes
characteristics classes
Dimensions and dimensional 5.2.1 Dimensions None Declared values, in mm, and
tolerances (for units intended to be tolerance category
5.2.2 Dimensional tolerances
used in elements subject to
structural requirements)
5.3.2 Configuration None
Configuration (for units intended to Declared configuration as
be used in elements subject to illustrated or described
structural requirements)
Compressive strength (for units 5.5 Compressive strength None
Declared value, in N/mm (with
intended to be used in elements
indication of mean or charac-
subject to structural requirements)
teristic, preparation, direction of
load and unit category)
5.9 Moisture movement None
Dimensional stability (for units Declared value of moisture
intended to be used in elements movement, in mm/m
subject to structural requirements)
Bond strength (for units intended to 5.12 Shear bond strength None Fixed value; or
be used in elements subject to
Declared value of initial shear
structural requirements)
strength, in N/mm
a
5.13 Flexural bond strength None
Declared value
Reaction to fire (for units intended to 5.11 Reaction to fire Euroclass A1 Declared reaction to fire Class
be used in elements subject to fire to F A1 to F
requirements)
Water absorption (for units intended 5.8.1 Water absorption by None
Declared value, in g/m ·s
to be used in damp proof courses or capillarity
in external elements with exposed
face)
Water vapour permeability (for units 5.10 Water vapour None Declared coefficient
intended to be used in external permeability
elements)
Direct airborne sound insulation (in 5.4 Density Declared value of gross density

end use conditions)/ [Density and
in kg/m and tolerance category
configuration] (for units to be used in
None
5.3.2 Configuration Declared configuration as
elements subject to acoustic
illustrated or described
5.2 Dimensions and
requirements)
tolerances
Thermal resistance/ [Density and 5.6 Thermal properties None Declared value of thermal
configuration] (for units intended to conductivity in W/mK and the
be used in elements subject to means of evaluation or
thermal insulation requirements) configuration and density (see
5.3 and 5.4)
a
Durability against freeze-thaw 5.7 Durability None
Declared value
Dangerous substances 5.14 Dangerous substance None
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 characteristics for the
intended use of the product.
In this case, manufacturers placing their products on
...