Experimental Investigation on Industrial Waste Material for Green Concrete

Abstract

The raw materials of concrete consist of cement, sand and crushed aggregates. Partial replacement of these raw materials by waste products may decrease the cost, reduce the energy consumption and also reduce the environment pollution. Wastes can be used to produce new products or can be used as admixtures so that natural sources are used more efficiently and the environment is protected from waste deposits. Fly ash can be used as filler materials and helps to reduce the total voids content in concrete and metakaoline can be used as admixtures/additive in concrete. The use of steel dust in concrete is desirable of benefits such as useful disposal of a byproduct, reducing of river sand consumption and increased strength. However, the use of steel dust leads to a reduction in the workability of concrete. In this project the flyash, metakaoline and steel dust waste are utilized as a replacement with cement and fine aggregate in concrete mix, the size of the concrete cube is 150mm×150mm×150mm and they were tested with different mix proportions of 0%, 10%, 20%, for flyash, metakaoline and 30%, 40% for steel dust In this study, the main constituents of the concrete cube are Ordinary Portland Cement, Fine aggregate and the replaced material. However, This paper deals with the idea of finding suitable proportions of steel dust, flyash and metakaoline that could be related in attaining the target strength of concrete. Experiments were conducted to find the compressive strength of concrete for M25 grade, with OPC 43 grade of OPC cement. Based on the test results, can be conclude that combine use of steel dust and fly ash and metakaoline can be shown improved or decrease the strength in concrete and also preserve the environment.