BS 4729:2005 PDF

Scope: This British Standard gives guidance for the dimensions of bricks, including those of special shape, made from clay and calcium silicate, traditionally used in the construction of brick masonry in the UK. Requirements for bricks are covered by BS EN 771 Parts 1 and 2. NOTE Derivation of dimensions of special shapes and typical examples of applications of special shapes are shown in Annex C (Figures C.1 and C.2 and Table C.1). Annex D gives recommendations for how the principles of the test methods in the BS EN 772 series of standards are to be applied to high density (HD) clay bricks conforming to BS EN 771-1:2003+A1:2005 with shapes as described in BS 4729. The properties covered are those required to enable the products to be characterized and CE marked. The table of requirements (reproduced from Table ZA.1.2 of BS EN 771-1:2003+A1:2005 together with an indication of the relevant clause in Annex D for such marking) is given in Annex I.

BS 4729:2005 Referenced Document

BS EN 772-2 Methods of test for masonry units — Part 2 : Determination of percentage area of voids in masonry units (by paper indentation)
BS EN 772-3 Methods of test for masonry units - Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing
BS EN 772-5 Methods of test for masonry units Part 5 : Determination of the active soluble salts content of clay masonry units
BS EN 772-7 Methods of test for masonry units - Determination of water absorption of clay masonry damp proof course units by boiling in water

2005 BS 4729:2005+A1:2016 Clay bricks of special shapes and sizes - Recommendations
2005 BS 4729:2005 Clay and calcium silicate bricks of special shapes and sizes - Recommendations
1990 BS 4729:1990 Specification for dimensions of bricks of special shapes and sizes