Experimental Investigation on Strength Properties of Concrete Blended with Dolomite Dust Powder with Slag Sand and Recycled Agrregates

Abstract

The most common building material utilized for hundreds of years is concrete. Natural resources are needed to produce concrete, and as a result, energy and natural resource output are declining daily. One of the major sources of carbon dioxide, a powerful greenhouse gas that contributes to global warming, is this cement producing company. Society has been concerned about the expense of concrete materials used in construction and civil engineering projects. This need has prompted researchers to look at potential new concrete component substitutes. In order to decrease cost and environmental impact, several experimental researches have been conducted to determine the best substitute for these basic ingredients for concrete. Dolomite powder may be utilized advantageously in concrete as a partial replacement for cement by taking into accounts all of these factors and the current necessity. In this study, the strength and workability characteristics of concrete mixed with slag sand, dolomite dust powder, and recycled aggregate are examined.

In this study, dolomite dust powder is utilized as a partial substitute for cement at 0, 10, 20, 30, and 40% by weights of cement, and slag sand is used as a total replacement to Natural sand and partial replacement of coarse aggregate by recycled aggregate at 0, 20, 40, 60, 80 and 100% by weight, in M30 grade concrete. In this study, concrete strength properties for compressive, split tensile and flexural strengths at 28 days are determined through experimental investigations. The results have been analyzed by plotting graphs and useful conclusions have been drawn for producing sustainable concrete of M30 grade.