Effect of Brick Powder and Stone Dust on Mechanical Properties of Self-Compacting Concrete

Abstract

In past few decades, industrial waste and cement production on a huge scale has presented a serious problem worldwide. Adequate actions should be taken to control air and land contamination resulting from cement manufacturing and waste material on a huge scale by industries. The purpose of this study is to use brick powder and stone dust, which are waste products, in self-compacting concrete (SSC) and analyze their effects on concrete’s mechanical properties. For this purpose, 5 %, 10 % and 15 % cement was replaced by brick powder and 10 % and 20 % sand was replaced by stone dust. Workability, air content and density of fresh concrete were investigated along with compressive strength, splitting tensile strength, and flexural strength for hardened concrete. Results showed that brick powder and stone dust addition led to the decreased workability of concrete. Compressive, flexural and split tensile strength increased with raising brick powder content at fixed proportion of stone dust with a maximum increase of 12.7 %, 11 % and 9 % respectively. It would prove to be cost- effective and eco sustainable solution to use industrial waste in concrete as substitute for cement and sand.