Clay brick manufacture - Construction Industry Development Board

Class II mortar is the general purpose mortar for all brickwork. Concrete wheelbarrows have a capacity of
65 litres and a sand volume of 200 litres is achieved by using three wheelbarrows of sand.
50 kg common cement: 0-40 litres lime: 200 litres (max) of sand measured loose and damp
2 bags 6 wheelbarrows
The addition of lime is optional. A maximum of 40 litres is permitted per 50 kg unit of common cement.
Mortars made with Masonry Cements carrying the NHBRC logo and the words “Cement type and
applications may be used in accordance with the NHBRC Home Building Manual” and designated as
being 12,5:
50 kg masonry cement: 170 litres (max) of sand measured loose and damp
2 bags 5 wheelbarrows
A competent person is required to design mixes for mortars which use materials or mix proportions
other than those described above to satisfy the requirements of 5.4.1.
Figure 9: Wall ties
Note: For dimensions of wall tiles refer to SABS 28
30