International Research Journal of Education and Technology

The "Study on Effect of Waste Marble Dust on Strength Properties of Concrete" delves into a comprehensive exploration of the impact of waste marble dust as a partial replacement for cement in concrete. In the realm of sustainable construction materials, the utilization of waste products has gained significant attention due to environmental concerns and the quest for resource optimization. This study contributes to the growing body of knowledge in this field by investigating the potential of waste marble dust as a supplementary cementitious material in concrete production. Cement, a fundamental ingredient in concrete, has a significant carbon footprint associated with its production. Therefore, incorporating waste materials that would otherwise contribute to environmental concerns presents an avenue for both waste management and enhancing the properties of concrete. Waste marble dust is generated as a byproduct during the cutting and shaping of marble in industries. Its indiscriminate disposal can contribute to environmental challenges, and thus, exploring its application as a construction material is of paramount importance. The central objective of this study is to assess the effects of partial cement replacement with waste marble dust on the strength properties of concrete. The study involves a range of replacement percentages, namely 5%, 10%, 15%, and 20%, and the impacts are evaluated through various mechanical tests, such as compressive strength, split tensile strength, and flexural strength. These tests provide insights into the behavior of concrete with waste marble dust under different loading conditions, offering a comprehensive understanding of its potential as a construction material. The study methodology encompasses a systematic approach, beginning with the collection and characterization of waste marble dust. The material's properties, including its fineness, chemical composition, and particle size distribution, are meticulously analyzed to ensure accurate replacement proportions. The concrete mix design is formulated following standard procedures, taking into account the specific replacement percentages. The study utilizes Ordinary Portland Cement (OPC) of 43-grade as the base material. Upon preparation of the concrete mixes, a range of tests are conducted to evaluate the properties of both fresh and hardened concrete. The workability of concrete is assessed through slump cone tests, providing insights into its flow characteristics. Subsequently, the compressive strength, a crucial indicator of concrete's load-bearing capacity, is measured at both 7 and 28 days of curing. Additionally, the split tensile strength and flexural strength are determined, showcasing the concrete's resistance to tensile and bending stresses, respectively. The results of the study reveal significant insights into the effects of waste marble dust on concrete properties. Notably, up to a 10% replacement of cement with waste marble dust, the compressive strength increases by 8%, showcasing the potential for enhancing concrete's load-bearing capacity