CONCRETE BASICS A Guide to Concrete Practice
FINE: fine and coarse sands and crusher fines. Sand should be concreting sand and not brickies sand or plasterers sand. Aggregates should be: STRONG and HARD A stronger, harder aggregate will give a stronger final concrete. Never use a crumble or flakey rock like sandstone. ... Rule Slump plate (500 mm x 500 mm) Method 1 2 3 5 6
