Mechanical properties of concrete made with waste fine and coarse ceramic aggregates

This study aims to produce a new type of waste aggregate concrete by using fine and coarse waste ceramic as aggregate; the waste ceramic used in this study was in 2 types: red ceramic, which has a red color and is produced from waste ceramic tiles, and white ceramic, which produced from the waste of tableware. Replacing ordinary fine and coarse aggregate with a ceramic waste aggregate improved the mechanical properties of concrete, compressive, tensile, flexural strength, and modulus of elasticity of normal concrete by using waste ceramic as aggregates. 20, 40, 60, 80, and 100% replacement by weight of aggregates are studied. Total replacement of normal aggregate with white ceramic aggregates led to an increase in compressive strength from 42.2 to 52.1 MPa; tensile strength also increased from 2.9 to 4.8 MPa, flexural strength increased from 4.3 to 8.7 MPa, and static modulus of elasticity has risen from 25.6 to 32.8 GPa. The mechanical properties of red ceramic increased until 60% replacement; a slight decrement in mechanical properties was found after 60% replacement. Studies show that waste white ceramic has better mechanical properties than red clay ceramic.