Investigation of the Strength Properties of Concrete Using Marble Powder and Iron Ore

Civil Engineering, Department of Civil Engineering, Middle East College, Oman

Abstract

Concrete is a major concern for engineers because of its extensive use in the building sector. The production of concrete also uses a lot of materials all around the world. However, the price of energy, the expansion of manufacturing capacity, and environmental concerns are three of the most crucial factors to consider in the concrete industry, considering the fast urbanisation and modern market. Because of issues with pollution and the high price and low availability of sand and cement, the current research focuses on employing marble powder as a cement substitute and iron ore as a sand substitute. The commercial by-products of producing and polishing granite powder, waste iron powder (WIP) and waste marble powder (WMP), are mainly wasted and pose a threat to human health. Substituted with marble powder (5% and 10%) for the cement and iron powder (30%, 40%, and 50%) for the fine aggregate. The results were based on the material's compressive strength, flexural strength, and workability. The highest compressive and flexural strengths were achieved when 10% of the cement was replaced with marble powder and 50% of the iron ore was replaced with sand. According to the results, the strength qualities of concrete might be enhanced by using less marble and more iron ore. From both a financial and ecological perspective, recycling these components and incorporating them into concrete as a partial replacement makes sense.