Influence of soil contaminated water on clogging phenomenon of different void based pervious concrete

In many circumstances, water passing through pervious concrete (PC) is contaminated with soil sediments. In such cases, clogging of the PC with soil sediments affects its functional characteristics and service life. The clogging behaviour of PCs with different void contents under the influence of soil-contaminated water is not yet clearly understood. Therefore, the effects of three different kinds of soil-contaminated water (water contaminated with sand, clayey silt and a mixture of sand and clayey silt) on the pore clogging of PCs with different design void contents (DVCs) were examined. For the three types of PC with different DVCs, three different concentrations of soil-contaminated water were used to examine the clogging process. The clogging process was executed until the minimum permeability level of the PC was reached. The effectiveness of washing on the de-clogging behaviour of each clogged PC was also examined. Various characteristics of the different DVC-based PCs (strength, permeability, macroscopic pore distribution and leaching parameters) were assessed. The outcomes of this work disseminate consensus behaviour of PC, which should be helpful to provide a conceivable solution to develop desirable performance of PC for wide applications.