11-15-2010, 05:47 PM
EN 771 Standard series Specification for masonry units
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EN 771-1 Specification for masonry units - Part 1: Clay masonry units
This EN specifies the characteristics and performance requirements for masonry units manufactured from clay for use in masonry construction (e.g. facing and rendered masonry, loadbearing or non-loadbearing masonry structures, including internal linings and partitions, for building and civil engineering). This EN is intended to apply to all fired-clay masonry units used in masonry construction, including those of an overall non-rectangular parallelepiped shape.
EN 771-2+AC Specification for masonry units - Part 2: Calcium silicate masonry units
This EN specifies the characteristics and performance requirements of calcium silicate masonry units for which the main intended uses are inner walls, outer walls, cellars, foundations and chimneys, including those of an overall non-rectangular parallelepiped shape, specially shaped and accessory units.
EN 771-3 Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and light-weight aggregates)
This EN specifies the characteristics and performance requirements for the physical and mechanical properties of aggregate concrete masonry units made from dense aggregate, lightweight aggregate or a combination of both. Units conforming to this Part of this EN are used exposed or non-exposed in common or facing masonry in building or civil engineering works.
EN 771-4 Specification for masonry units - Part 4: Autoclaved aerated concrete masonry units
This EN specifies the characteristics and performance requirements of autoclaved aerated concrete (AAC) masonry units for which the main intended uses are different types of loadbearing and non-loadbearing 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 chimneys.
EN 771-5 Specification for masonry units - Part 5: Manufactured stone masonry units
This EN specifies the characteristics and performance requirements of Manufactured Stone Masonry Units for which the main intended uses are facing or exposed masonry in loadbearing or non-loadbearing 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 and they can provide fire protection, thermal insulation, sound insulation and sound absorption.
EN 771-6 Specification for masonry units - Part 6: Natural stone masonry units
This European Standard specifies the characteristics and performance requirements of masonry units manufactured from natural stone the width of which is equal to or greater than 80 mm, for which the main intended uses are common, facing or exposed masonry units in load bearing or non-load bearing building and civil engineering applications These 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 European Standard includes natural stone masonry units of an overall non-rectangular parallelipiped shape, specially shaped and accessory units for internal and external application.
It defines the performance related to e.g. strength, petrographic description, density, porosity, dimensional accuracy, thermal conductivity, water absorption, and frost resistance 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 cover storey height panels, natural stone for paving, chimney flue linings nor units intended for use as damp proof course.
:JC_cheers:
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