TABLE OF CONTENTS - The Professional Green Building Council

Theme A: Connecting the Pearl River Delta RegionPorous pavement provides numerous economic, environmental and aestheticbenefits when compared with conventional impervious pavement. From theeconomic view, porous pavements can reduces the land space consumed byconventional detention facilities. reduces the need for curbs, gutters, inlets, andstorm sewers. Some experts thought that the design of a porous pavementproject is just the first step in the process of finishing with a environmentallyresponsible project. Proper construction and maintenance are also key to insuringthat the porous pavement and recharge beds function for a long time. Theinfiltration bed located beneath the porous pavement must be excavated withoutheavy equipment traversing (hence compacting) the bed bottom. Fine grading isdone by hand and checked for level. Geotextile fabric is laid immediately after finegrading is completed. Clean (washed) uniformly graded aggregate is placed in thebed as the storage media. This stone provides 40% void space and a stable base forthe porous pavement parking surface. Also, the pavement must be protected fromexcessive sediment and silt that may runoff from adjacent lands to minimizeclogging.I think these tips which offered by the experts about construction ofporous pavement is useful indeed.All in all, generalizing and applying porous pavement ,exerting the ecologyenvironmental benefit, it is an important measure to improving urban ecologyphysical environment. Considering the present situation of research for porouspavement in our country and the experience abroad, some advice andcountermeasures were also suggested:(1) Quicken application step of porous concrete pavement (ball) on the base ofpresent research.(2)Further study the mechanism of combining porous pavement’s applicationwith utility of the rain-water.(3)Formulating the special urban planning and construction regulations aboutporous pavement.78