BS EN 771-1:2011+A1:2015 - Specification for masonry units. Clay masonry units

BS EN 771-1:2011+A1:2015

Specification for masonry units. Clay masonry units

Status : Current, Project Underway   Published : October 2011



This European Standard specifies the characteristics and performance requirements for masonry units manufactured from clay for which the main intended uses are protected or unprotected masonry structure (see definitions 3.3 and 3.4) (e.g. facing and rendered masonry, loadbearing or non-loadbearing masonry structures, including internal linings and partitions, for building and civil engineering).

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This European Standard includes those clay masonry units of an overall non-rectangular parallelepiped shape.

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.

The marking requirement for products covered by this European Standard is included.

This European Standard does not specify standard sizes for clay masonry units, nor does it specify standard work dimensions, angles and radii of specially shaped clay masonry units. This European Standard does not include method of measurement of angles and radii characteristics of specially shaped clay masonry units.

This European Standard does not cover requirements for the following: units for paving, flue liners and storey height clay masonry units and clay masonry units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire. It does, however, include clay masonry units for external chimney masonry.

Standard NumberBS EN 771-1:2011+A1:2015
TitleSpecification for masonry units. Clay masonry units
StatusCurrent, Project Underway
Publication Date31 October 2011
Normative References(Required to achieve compliance to this standard)EN 772-5, EN 772-11, EN 13501-1, EN ISO 12572, EN 772-1, EN 772-9, ISO 12572:2001, EN 772-7, EN 772-16, EN 772-19, EN 772-20, EN 772-13, EN 1052-3, EN 772-3, EN 1745, EN 772-21
Informative References(Provided for Information)BS EN 772-7:1998, BS EN 772-1:2011, PAS 70:2003, EN 1996-1-1:2005, BS 6100-1:2004, BS EN 772-11:2011, BS 6649:1985, BS 3921:1985, BS EN 772-5:2001, BS EN 752:2008, BS EN 772-13:2000, BS EN 998-2:2010, EN 998-2:2010, PD 6697:2010, 2000/605/EC, EN 1996-1-2, EN 1996-3, 305/2011/EU, BS 4729:2016, EN 1996-2, ISO 12491, 96/603/EC
ReplacesBS EN 771-1:2003
International RelationshipsEN 771-1:2011+A1:2015
Amended ByAmendment, March 2016
Draft Superseded By14/30266133 DC
DescriptorsPerformance, Walls, Marking, Thermal properties of materials, Blocks (building), Dimensional tolerances, Conformity, Construction materials, Dimensional changes, Bricks, Specification (approval), Construction systems parts, Brickwork, Thermal resistance, Partitions, Quality control, Physical properties of materials, Density, Strength of materials, Clay, Water absorption
Title in FrenchSpécification pour éléments de maçonnerie. Briques de terre cuite
Title in GermanFestlegungen für Mauersteine. Mauerziegel
ISBN978 0 580 79491 9
File Size2.449 MB

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