The Effects of Cement Content, Sand Percentage and Fly Ash Dosage on Lightweight Aggregate Concrete

The paper is one part of ongoing research on structural lightweight aggregate concrete. Lightweight aggregate concrete with compressive strength class of CL40 and slump of 160-200 mm were studied. The influences of the cement content, sand percentage and fly ash dosage on properties of fresh and hardened LWAC, such as fresh density, workability and compressive strength were investigated.