Technical performance of permeable concrete pavement for reducing the surface runoff.

In storm-water management, ability of the catchment to infiltrate the water has become an issue. Permeable pavement is a surfacing material for roads, parking lots, and pedestrian walkways, all with the purpose of allowing rainwater runoff to be absorbed. In this study, an experimental study was conducted to assess the performance of permeable pavement. The pavement was made from a mixture of cement, coarse aggregate, and bonding adhesive additive substance. The additive was a chemical Base Polyvinyl Acetate Emulsion in liquid form with 1 kg/L density. Three cylindrical samples were prepared, each with a different proportion of additive, i.e. 1, 1.5, 1.1, 1.15, and 1.2 from the original amount. The technical performance was evaluated through the tensile strength and absorbed water volume in 21-days and 28-days age. The results revealed that the tensile strength improved from 0.700 MPa to 1.373 MPa for 21-days concrete when the admixture is added up to 1.2 times from the initial mix design. For 28-days curing time, the strength improved from 1.073 MPa to 1.651 MPa. Adding the bonding substance up to 1.2 times raises the infiltration rate of 21-day and 28-day concrete pavement to 32.4% percent and 30.36%, respectively. A simple hydrological calculation found that the runoff coefficient could decrease from 0.75 to 0.37. The findings should make an important contribution to the field of sustainable drainage. [ABSTRACT FROM AUTHOR]