Investigating and Optimizing the Mechanical Properties of Glass Powder and Marble Dust Modified Cementations Concrete

Abstract

The cement industry not only depletes natural resources but also is a source of environmental threat by releasing CO2 content into the atmosphere, which promotes global warming. Subsequently, the whole or partial substitution of cement with supplementary cementitious materials (SCMs) is a feasible and cost-effective approach to enhancing concrete`s adaptability while also utilizing agro-industrial wastes. The research comprises two phases, in the first phase the main variables of interest in cementations mix design selection were sand, cement, and water results based on the primary mechanical property (compressive strength). In the second phase of research, a sequential and systematic optimization technique was applied to develop a modified cementations concrete using marble dust and glass powder. The concerned properties were workability (slump flow) and mechanical properties (compressive and tensile strength). Finally, the optimum finding of marble dust and glass powder were 2.9 and 90 respectively by using the multi-objective optimization technique of RSM. The experimental findings for the slump flow, compressive strength, and tensile strength were 126 mm, 30.73 MPa, and 2.6 MPa, respectively, which were quite near to the expected response values, with the difference between them being less than 5%.