Waste ceramic as partial replacement for sand in integral waterproof concrete: The durability against sulfate attack of certain properties

Abstract

Nowadays, the use of waste materials in concrete production is crucial for a clean environment and less concrete cost. This study aimed to enhance some mechanical properties of concrete utilizing integral waterproof (IWP) admixture and using waste ceramics as fine aggregate with finer particles to improve compressive strength and modulus of elasticity and absorption studied. Studies indicate increase in compressive strength and modulus of elasticity by using IWP only and also a reduction in absorption and by using ceramic powder as a replacement with normal sand, more advantages were achieved, i.e., the compressive strength increased from 41.7 to 47.8 MPa by replacing sand with some ceramic waste, and the modulus of elasticity increased from 25.22 to 29.61 GPa. The absorption lowered to only 1% while it was 1.96% for concrete without ceramic waste. Durability against sulfate attack was also studied in this research.