CSEB can be made from almost any soil, which contains a minimum of 10% Clay.
Topsoil, which contains humus, shall never be used for CSEB.
IHS selected several soils and got them analyzed in University labs of BUET and Amsterdam.
Crush the soil in a mechanical mixer, and mix the fine soil with sand and a low percentage of cement.
Compress the mix of soil, sand, cement in a mechanical hand press (IHS will soon import an automated hydraulic press)
