EXPERIMENTAL STUDY ON STRENGTH OF CONCRETE BY PARTIAL REPLACEMENT OF FINE AGGREGATES WITH QUARRY DUST

Quarry dust is a waste from the stone crushing unit accounts 25% of the final product from stone crushing unit. This quarry dust which is released directly into environment can cause environmental pollution. To reduce the impact of the quarry dust on environment and humans, this waste can be used to produce a new product by partially replacing fine aggregates with quarry dust in concrete. The main aim focus of this paper was to quarry dust partial replaces natural sand in concrete for studying the hardened strength properties of concrete. Natural sand was replaced with Quarry dust by three proportions (i.e. 10%,20%, and 30%). The study was carried out on M20 grade concrete with 0.5 water cement ratio. Quarry dust can be used as fine aggregate, but it has to satisfy the technical requisites like workability and strength. Concrete mixes were tested for compressive strength and split tensile strength of concrete replaced by quarry dust was compared. The aim of the test was to find the mix proportion which shows strength values are high compared to natural concrete.