External masonry walls

6.1.13Materials suitable for mortar

Materials used for mortar should comply with the appropriate requirements and standards.

Relevant standards include:

BS EN 197‘Cement. Composition, specifications and conformity criteria for common cements’.
BS EN 197 or BS EN 413‘Masonry cement’.
BS EN 459‘Building lime’.
BS EN 998‘Specification for mortar for masonry’.
BS EN 934maintain a residual thickness of 15mm between the chase
and the void for hollow or cellular blocks unless otherwise
recommended by the manufacturer
BS EN 12878‘Pigments for the colouring of building materials based on cement and/or lime. Specifications and methods of test’.
BS EN 13139Aggregates for mortar