DefinePK

Abstract

Marble powder is a by-product obtained during the quarrying process from the parent marble rock; which contains high calcium oxide content of more than 50%. The potential use of marble dust can be an ideal choice for substituting in cementitious binder as the reactivity efficiency increases due to the presence of lime. In this research work, the waste marble powder upto 10% (passing through 45 microns) by weight of cement was investigated for hardened concrete properties. Furthermore, the effect of different percentage replacement of marble dust on the compressive strength, splitting tensile strength and flexural strength were evaluated. It can be noted that the influence of fine to coarse aggregate ratio (F/C) and cement-to-total aggregate ratio (C/TA) had higher influence on the improvement in strength properties. A phenomenal increase in the compressive strength of 46.80 MPa at 7 days for 10% replacement of marble powder in cement content was noted and also showed an improved mechanical property compared to controlled concrete.