State of the art on the hydraulic properties of pervious concrete

Abstract

Pervious concrete is a type of concrete with high porosity that allows water to pass through it. It has a range of environmental benefits, including stormwater management, noise reduction, and temperature regulation. However, testing the permeability and strength of pervious concrete is costly and time-consuming, due to the many variables that can influence these properties. This paper presents research on the factors that influence the porosity and permeability of pervious concrete, including the type and size of aggregates, the water-cement ratio, and the cement-paste content. The paper also compares different methods of measuring permeability, and finds that a constant-head permeameter is more accurate than a falling-head permeameter. Additionally, the study investigates the clogging of pervious concrete and strategies to prevent it. The results of this research aim to improve the design of pervious concrete for use in the urban built environment. Highlights This paper presents the composition and method of formulation of pervious concrete based on cement and natural aggregates. Factors affecting the porosity of pervious concrete are identified. Correlations are established between the permeability and open porosity of pervious concrete. Factors influencing the permeability of pervious concrete are studied. Methods of measuring permeability are presented, and the results obtained with these different methods are compared. Different models for predicting the permeability of pervious concrete are presented.