Abstract
Due to the unique permeable characteristics, the use of pervious concrete finds applications in various construction projects. The perviousness of the concrete can be achieved through exclusion of fine aggregates from its matrix. The study investigates the possibility of developing a sustainable pervious concrete through the utilization of fly ash as a partial replacement for cement. The overall objective of the current study is to promote sustainability in the development of a pervious concrete by partial replacement of cement by fly ash without compromising the strength. In total, different trails were prepared by replacing the cement with fly ash up to 40% in levels of 10%. Two sizes of coarse aggregates such as 12.5 mm and 20 mm were added to identify their significance. The experimental findings revealed that the mechanical properties of pervious concrete were improved with 20% of fly ash. After 28 days of curing, addition of higher proportion of fly-ash resulted in the decrease of compressive strength. Another important observation is the downfall of the porosity (i.e., high permeability) due to the increasing dosage of fly-ash.
Published Version
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