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Precast Concrete Bricks & Blocks information

Concrete Bricks & Block definitions

Precast concrete Bricks and Blocks:
A concrete block is primarily used as a building material in the construction of walls. It is sometimes called a concrete masonry unit (CMU). A concrete block is one of several precast concrete products used in construction. The term precast refers to the fact that the blocks are formed and hardened before they are brought to the job site. Most concrete blocks have one or more hollow cavities, and their sides may be cast smooth or with a design. In use, concrete blocks are stacked one at a time and held together with fresh concrete mortar to form the desired length and height of the wall.
Concrete Masonry Unit - SANS 1215
Unit a precast building component of nominally rectangular shape, either solid or hollow, and used in the construction of walls.


Information items for precast concrete bricks and blocks:

Advanatges of Concrete Masonry Units

Concrete block modular masonry is a long-standing internationally proven system which can do much to alleviate South Africa’s housing shortage. It was first specified by the local authorities in the late seventies and early eighties in the Western Cape, where it is still being used with great success to this day Click here to read more

10 October 2019


Colour variations in: CMU, CBP and Concrete roof tiles.

The understanding of colour, hues and reflection of light is complex and a field of specialised study. This brochure takes a brief look at colour and colour variance in terms of:

  • The South African National Standard
  • Factors influencing colour
  • Realistic expectations
  • Avoiding disappointment
  • Recommendations

Click here to read more

23 September 2021


CMA NPC & CMACS Partnerships



Aggregate Sand Producers SA