Roles of mortar volume in porosity, permeability and strength of pervious concrete

Abstract Pervious concrete is designed to be porous allow permeation of water and air for combating the environmental drainage problems arising from urbanization. However, despite extensive research, it still not clear how best design pervious mixes achieve good concurrent permeability-strength performance. In a previous study, authors found that there necessity distinguish between interconnected porosity open porosity, unsubmerged permeability submerged permeability. this based on thinking fine aggregate may added reduce paste volume provided enough form coherent mass with paste, further research was conducted develop mortar type reduced investigate roles in strength. A new series varying were tested results revealed major factor determining while water/cement ratio are factors More importantly, plays key role each performance attribute.