DIN Standards Committee Building and Civil Engineering
DIN EN 771-5
Specification for masonry units - Part 5: Manufactured stone masonry units; German version EN 771-5:2011
Festlegungen für Mauersteine - Teil 5: Betonwerksteine; Deutsche Fassung EN 771-5:2011
Overview
This European Standard specifies the characteristics and performance requirements of manufactured stone masonry units mainly intended for use in facing or exposed masonry 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 standard applies to concrete masonry units manufactured to resemble natural stone using casting or pressing techniques with or without textured surfaces produced, for instance, by casting, splitting, washing, blasting or tooling and with or without variable outline effects. The standard applies to homogeneous masonry units and those consisting of different facing and backing concrete mixes. It does not apply to masonry units manufactured with an adhesive bonded decorative face. Masonry units intended to conform to EN 771-3 are not covered by this standard. This standard describes the requirements related to, for instance, strength, density, dimensional accuracy and surface appearance. Furthermore, the evaluation of conformity and the marking requirements for products covered by this European Standard are specified. 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 and does not apply to products intended to be used as a damp proof course. It does not contain standard sizes for manufactured stone masonry units or work dimensions and angles of specially shaped units. This European Standard does not apply to units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire. The Committee responsible for this standard is NA 005-06-02 AA "Koordinierungsausschuss Mauersteine (SpA zu CEN/TC 125/WG 1)" ("Coordinating committee Masonry Units (Mirror Committee of CEN/TC 125/WG 1)") at DIN.
