TABLE OF CONTENTS - The Professional Green Building Council

Theme A: Connecting the Pearl River Delta Region20%, impervious pavements area ratio was 20%,its flood peak was 1.5 timesas original flood peak flow. When control area ratio of drainage pipeline was60%, impervious pavements area ratio was 60%, then its flood peak was 3times as original flood peak. This indicated that urban surface runoff increasedrapidly along with the increase of impervious pavement’s area ,so flow offlood peak was added too, the serious consequence was leading flood disaster.Because of its own permeability, porous pavement can reduce the pressure offlood discharge. The surface runoff flows gently. The peak value of runoff isrecede ,and its flux raise and reduce gently too. Undoubtedly , controlling floodin urban area can benefit from the porous pavement [2] .2.6 The Impacts of porous concrete balls pavement in cleansing of sewageand improvement offshore ecology and fishery environments.Depending on its own porous structure, the porous concrete pavement in watercan create a favourable environment for some aquatic animals and plants. Theseaquatic animals and plants can decontaminate the sewage in urban area [6] [7] .The ecological concrete balls create a favourable aquatic animals and plantsenvironment to cleans the sewage. Figure 3 shows this special ecologicalconcrete balls can be used as ecological regression for river slope protection toimprove water quality of river water . This special ecological concrete balls canalso be used as artificial reef just as Figure 4 shows . The construction ofecological concrete balls reef is of great importance to regulation andimprovement of marine industry, remediation and improvement of marineecological environment, enhancement and perfection of fishery resources. Allthese applications testified that porous concrete pavement (balls) have distinctadvantages about cleansing of sewage and improvement offshore ecology andfishery environments [8] .3. THE ADVICE AND COUNTERMEASURES FOR POROUSPAVEMENT’S RESEARCH77