Author : Karthik Thipparthi, Rahul B, Shoeb Uddin M K, Arun Kumar M and Farhad Rafiq Wani

Granite industry cuts the granite rock to slabs based on the requirement of the client, using metal saws, and the fine powder is produced during cutting is considered as solid waste and is being collected. Granite mine industry generates huge amount of waste, during the process of sawing. The granite saw dust comprises of calcium and iron which has the compatibility to acid soils. Use of granite waste found to be effective in the production of concrete for civil construction. In this project work, Granite waste was used as partial substitute in fine aggregate proportions varying from 20% to 40% by weight to cement in concrete. Experiments have been conducted with the collection of materials required and data required for mix design are obtained. The M40 grade concrete is designed as per Indian standard code. The water cement ratio is maintained for this mix design is 0.40. The granite powder wastes was partially replaced with 20%, 30% and 40% in concrete. Cubes, beams and cylinders were casted with these concrete mixes and subjected to curing of 28 days. The effects of Granite Powder waste on mechanical properties of concrete were evaluated through compressive strength, split tensile strength and flexural strength tests. The compressive strength test of concrete showed better results for 30% replacement of granite powder by fine aggregate whereas, the split tensile strength and flexural strength tests of concrete showed better results for 20% replacement of granite powder by fine aggregate.

Keywords: Granite industry waste, Special concrete, mechanical properties of concrete, industry recycling waste, Granite saw dust, compressive strength, powder.