Feasible utilization of industrial wastes in bituminous concrete as fillers

Abstract

newline Today, the pavement engineers around the globe are facing challenges to construct newlineroad networks that are not only are efficient, cost-effective and long-lasting, but also newlinebe sustainable by nature. This situation is more relevant for the developing economy newlinelike India which has second the second-largest road network in the world having 5.6 newlinemillion km of roads. More than 90% of Indian highways are paved with bituminous newlinemixes that constitute more than 92% of aggregates by weight. On the other hand, newlinemining restriction, environmental protection regulation and appreciating land costs has newlineled to the reduction in availability of aggregates as well as increased the overall cost of newlineroad construction. The glass and dimensional limestone (known as Kota stone in India) newlineindustries produce a substantial amount of fine glass powder and Kota stone dust newlineduring the polishing of glass and stone slabs. Incorporation of these industrial wastes newlinein bituminous mixes as fillers not only can fulfill the demand of conventional stone newlinedust filler, but also, resolves the problems related to environmental pollution, shortage newlineof disposal land and other associated issues. However, there are very few reported newlinestudies that investigated the influence of wastes described above on the behavior of newlinebituminous concrete mixes.