抄録
Porous asphalt pavement is one solution to increased surface runoff due to urbanization by allowing temporary storm-water retention. This paper aims to establish a rational basis for material selection, drainage design and rutting resistance evaluation of a porous asphalt pavement of this purpose. Selection of suitable design porous asphalt mix and crushed stone base are made by studying the vertical drainage properties and the deterioration trends in permeability caused by clogging using the National University of Singapore (NUS) Falling Head Permeameter. Thickness design of the porous pavement, including the thickness of porous asphalt surface layer and that of the crushed stone base, is based on hydrologic and drainage analysis by means of finite element modeling. Rutting resistance of the pavement structure is evaluated through laboratory wheel tracking tests. Based on these three criteria, a recommended design of the porous asphalt pavement is proposed for car parks and roads in Singapore.
