How many bags of cement do I need to make 1 cubic metre of ...
Dec 30, 2011· 1 Cement 2 Sand 3 Aggregate (gravel) is too strong. 16bags (costly) 1 Cement Sand 4 Aggregate is OK for fence posts. 13bags of cement per cubic metre. The more cement the more costly of course so don''t over do it. Note: These are 20kg bags of General Purpose cement.