ABSTRACT

Due to its lower production temperature cold bituminous emulsion mix (CBEM) has several environmental and economic benefits over conventional hot mix asphalt. However, its demerits like lower strength, higher moisture susceptibility, and longer curing time make it undesirable for the practitioners. In order to solve these issues, the present study examines the effect of fly ash on the properties of CBEM. In the study, conventional stone dust filler is replaced by fly ash in the proportion of 1%, 2%, 3%, 4%, and 5% by the weight of total aggregates. Marshal stability, retained stability, Indirect tensile strength (ITS), and indirect tensile strength ratio (ITSR) tests are performed. Results obtained from these tests showed that inclusion of flyash improves the mix properties. Further based on the comparison of test results 3% flyash was found to be optimum content.