Durability evaluation of coal ash mixed material on wetting and drying test considering the various environmental degradation factors

Abstract

It is important for coal fly ash and/or any other recycling materials to guarantee not only quality and safety of surround environment but also durability due to promoting the utilization. This study focused on the durability of coal ash mixed material which is made by cements, water, coal fly ash and soil. Also, this study focused on wetting and drying test as one of the durability test. This paper reports, 1) durability evaluation of coal ash mixed material on wetting and drying test, 2) assessment of the effect on the environment of coal ash mixed material considering the various environmental degrading factors. As a result, it was revealed that the compressive strength of coal ash mixed material that underwent wetting and drying decreases as degradation progresses regardless of the solutions. And the degradation mechanism depends on the type of solution of durability test.