Abstract
Flash floods occur mostly due to obvious reasons such as clogged drains, huge surface run-off, the drainage capacity of the existing drainage system could easily be exceeded and lead to excess surface water could not be drained out that quickly. This project is proposed to design and assess the effectiveness of a porous pavement structure for the purpose of maximizing water infiltration. A total of eight square concrete slabs with different hole pattern with the dimension of 0.3m x 0.3m and the height of 0.5m were designated. The results indicated that holes in concrete influence the permeability of water pass through the designed concretes and thus affect the flow rate of the water. In addition, aggregate height plays a role in influencing the flow rate of water. The higher pavement height provides lower flow rates. Moreover, the bigger the size of aggregate contributed to the higher the flow rates.
