Effect of Waste Marble Powder on Physical and Mechanical Properties of Concrete

Abstract

The emission of greenhouse gases from cement production is an obstacle for sustainable development of construction industry. The use of waste materials in constructions instead of cement could be a feasible solution to green construction. Waste marble powder with good cementing property can be used in concrete partiallreplace cement. In this research, the effects of using waste marble powder on the physical and mechanical properties of concrete have been studied. Three groups of particle size and five levels of replacement ratio (5%, 10%15%, 20%, 25%) for each group have been designed. During the different stage of hydration process, the micro-structure, phase composition and thermal properties of marble-cement paste have been investigated, the influencof particle size of marble powder on these properties has been discussed. The compressive strength and stress-strain relation were tested for different series prepared by partially replacing cement at proportions of 5%– 25% separately. From the data analysis, it was observed that the using of waste marble powder would affecthe hydration products and further affect the mechanical properties of concrete, the addition of marble powdethat partially replace the cement at particular proportions in concrete is feasible.