INTERNATIONAL RESEARCH JOURNAL OF MODERNIZATION IN ENGINEERING TECHNOLOGY AND SCIENCE

Abstract

This paper provides an overview of Self-Compacting Concrete (SCC) and Steel Mill Scale (SMS). In the current scenario of the construction industry, the demands in constructing large and complex structures often lead to difficult concrete conditions. When placing large amounts of heavy reinforcement in reinforced concrete (RC) elements, it is difficult to fully compact without voids and honeycombs. Compression by hand or a mechanical vibrator is very difficult in this situation. This led to the invention of a new type of concrete called self-compacting concrete (SCC). This type of concrete flows easily around rebar and into the corners of formwork. In the present study of steel mill scale, waste from steel industries was tested as a partial substitute for sand. Steel mill scale is a waste product obtained from steel manufacturing industries and it has an adverse impact on the environment. Mill scale has become a good substitute for fine aggregates in the construction industry. Test parameter is the rate of replacement of steel mill scale (0%, 20%, 40%, 60%, 80% and 100%) by weight into fine aggregate content in concrete grade M30 and result The results obtained from these mixtures were compared with the original concrete of quality M30. The compressive strength, split tensile strength, flexural strength and microstructural properties of this concrete were evaluated. The interaction of scale in concrete has been methodically investigated using microstructural studies. It has been found that the very small grain size of the steel mill scale fills the gap between fine and coarse aggregates, causing the concrete to become dense. The paper-based test results reviewed show that steel mill scale recycling using it as a minor substitute for fine aggregate offers a viable, cost-effective and friendly solution. Environmentally friendly with a optimum replacement rate of 30%.

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