Investigation of Marble Dust added Concrete by Considering Effect of Temperature on Pavement

Abstract

Concrete pavement has proved to be a versatile solution in terms of long term life, low maintenance while meeting the need of present world without compromising the ability of the future demand to meet its own need. With reference to the focus on sustainable construction practices, researchers around the globe are keenly interested in motivating the use of waste/recycled materials in concrete to reduce dumping of CO2 into the environment. Marble dust is an industrial waste which is developed while cutting of marble blocks into smaller blocks/slates to obtain the desired shape. During this process, about 25% original mass is lost in the form of dust/powder. This marble dust has become a threat to agriculture and human health as it is being dumped in open environment. Hence, utilization of marble dust in construction practices has become essential to prevent environmental pollution. Many researchers have recommended the use of marble dust in the concrete pavement as it enhances mechanical properties of concrete. As concrete pavements are subjected to dynamic loading conditions, the feasibility of marble dust in concrete pavements has not been reported. Hence, an attempt is made to evaluate the performance of marble dust added concrete pavement with reference to fatigue damage guidelines provided by IRC 58:2015. Mechanical properties and realistic temperature differentials are obtained through experimental approach for evaluating fatigue performance. Present research reveals that the realistic temperature differentials are not in agreement with the temperature differential recommended in IRC 58:2015, which leads to overestimation/underestimation in design thickness of pavement slab.