Comparative Study on Performance of Tire Crumbles with Fly Ash and Kaolin Clay

Abstract

In this study, the impact of tire crumbles as an admixture on compaction and strength behavior of two different materials, kaolin clay and fly ash is considered. In order to understand the compaction and strength behavior, proctor compaction tests and California bearing ratio (CBR) tests respectively were performed on the mixture of clay and fly ash with tire crumbles. Test results have shown that maximum dry unit weight decreases when tire crumbles are added in fly ash or clay. Increment in the optimum moisture content was also observed, when tire crumbles were added in clay. But no significant changes have been observed in case of fly ash. Test results have shown that the fly ash-tire crumble mix can sustain greater load than the clay-tire crumble mix. Improvement in CBR value is 5 times for clay and 3 times for fly ash with the addition of tire crumbles.