Engineering Bricks are durable, high strength bricks, specially manufactured to accommodate high loads and cope with exposure toaggressive ground conditions. Made from selected dense aggregates and a choice of cements, the bricks, which exhibit low porosity and high dimensional accuracy, are completely frost resistant and suitable for use below ground where natural sulphates, up to and exceeding Class 3 levels, are present. 65mm Low Carbon Perforated Concrete Semi Engineering Brick
