The Use of Fly Ash in Pervious Concrete Containing Plastic Waste Aggregate for Sustainable Green Infrastructure

Abstract

AbstractThe aim of this research is to experimentally investigate the use of fly ash in pervious concrete containing plastic waste aggregate for solving environmental problems. The effects of fly ash are investigated based on the weight of volume concrete, compressive strength, and void ratio of pervious concrete samples. The percentages of 5, 10, and 15% plastic were used to replace the natural aggregate content. The amount of 15% fly ash is selected based on the optimum compressive strength of cement mortar tested seven days after water curing. This percentage was then used in pervious concrete containing 5% of plastic waste aggregate that achieved the highest compressive strength in comparison to other mixtures. The results show that pervious concrete incorporated with 15% fly ash and 5% plastic waste aggregate reduced the weight of the volume of pervious concrete compared to control concrete without plastic aggregate addition. In terms of compressive strength and void ratio, the use of fly ash shows comparable results with the control specimens. Furthermore, combining 15% fly ash and 5% plastic waste in making pervious concrete can be considered as one of the environmentally construction materials for sustainable green infrastructure.KeywordsFly ashPervious concretePlastic wasteCompressive strengthVoid ratio