ABSTRACT

Concrete blocks are manufactured to various work face dimensions in an extensive range of widths, offer-

Introduction The variety of commercially available concrete blocks is extensive, from dense through to lightweight, offering a range of load-bearing strength, sound and thermal insulation properties.Where visual blockwork is required, either internally or externally, fairfaced blocks offer a selection of textures and colours at

a different visual scale compared to that associated with traditional brickwork. Externally, visual concrete blockwork weathers well, provided adequate attention is given to the quality of the material and rainwater run-off detailing. Blockwork has considerable economic advantages over brickwork in respect of speed of construction, particularly as the lightweight blocks can be lifted in one hand.