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  • BSI
    BS EN 771-4:2011+A1:2015 Specification for masonry units - Autoclaved aerated concrete masonry units
    Edition: 2016
    $473.45
    / user per year

Description of BS EN 771-4:2011+A1:2015 2016

This European Standard specifies the characteristics and performance requirements of autoclaved aerated concrete (AAC) masonry units for which the main intended uses are different types of load bearing and non-load bearing applications in all forms of walling including single leaf, cavity, partitions, retaining, basement and general use below ground level, including walling for fire protection, thermal insulation, sound insulation and the fabric of chimneys (excluding chimney flue units).

This European Standard includes AAC masonry units with an incorporated insulation not exposed to fire, and masonry units of an overall rectangular parallelepiped shape, specially shaped and accessory units. AAC masonry units may consist of layers of different densities where not all of the layers are loadbearing.

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 cover the requirements for storey height panels, flue linings and masonry units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire. It does not specify standard sizes for autoclaved aerated concrete units nor standard work dimensions and angles of specially shaped and accessory units. It does not give permissible deviations for specially shaped and accessory units. It does not cover products intended for use as a damp proof course or the lining of a chimney.



Standard NumberBS EN 771-4:2011+A1:2015
TitleSpecification for masonry units - Autoclaved aerated concrete masonry units
StatusConfirmed
Publication Date2016-03-31
ReplacesBS EN 771-4:2003
Identical National Standard OfEN 771-4:2011+A1:2015
AmendsBS EN 771-4:2011, 14/30266142 DC
DescriptorsCellular concrete, Properties, Conformity, Bricks, Dimensional tolerances, Walls, Sound insulation, Performance, Blocks (building), Retaining walls, Non-loadbearing walls, Construction systems parts, Partitions, Concretes, Cavity walls, Loadbearing walls, Brickwork, Thermal insulating materials, Fire safety, Basements, Type testing, Chimneys
ICS91.100.30 Concrete and concrete products
CommitteeB/519/1
ISBN978 0 580 79494 0
PublisherBSI
Pages48

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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