Augmentation of mechanical and bond strength of coconut shell concrete using quarry dust

Abstract

The properties of concrete using quarry dust (QD) as fine aggregate and coconut shell (CS) as coarse aggregate were examined in this investigation. Workability, density of concrete, compressive, flexural, splitting tensile strengths, impact resistance and bond strength were considered and evaluated with the theoretical values as recommended by IS 456 and BS 8110 standards. For comparison, both conventional and CS concrete mixes are selected with sand and QD have been considered to study. The bond strength was determined as per IS 2770 (Part-I 1987) and ASTM C 234. This study proves that the use of QD in place of sand augmented the mechanical and bond properties of both CSs concrete and conventional concrete as well.

Keywords:

• coconut shell
• quarry dust
• aggregate
• concrete
• mechanical properties