Performance and runoff coefficient of permeable concretes subjected to heavy rainfall simulations

The use of permeable concrete pavements can mitigate flooding in densely populated areas by serving as a functional and sustainable mechanism for surface water absorption drainage. However, it is found that the performance pavement often limited to low moderate flows capacity matrix decreases flow rate increases. Therefore, present study was developed aiming evaluate potential reduce runoff subjected simulations successive events heavy rainfall. For this purpose, 2 binary combinations coarse aggregates were used, varying cement consumption water/cement (w/c) ratio. samples submitted sequential rainfall, with evaluation volume absorbed runoff. mechanical hydraulical properties evaluated, well characteristics area internal superficial pores. Among results, specific weight stands out parameter showed highest linear correlation hydraulic behavior specimens. It also coefficient had negative average pore size pavement. Finally, investigated have are prone frequent flooding, thus playing critical role mitigating problems associated stormwater