CAJ | 학술논문

为了明确透水路面控制路表径流非点源污染的功效，在明确路表径流污染主要评价指标基础上，从不同空隙结构沥青混合料的材料组成角度研究其控制路表径流污染的效能。试验结果表明，具有不同空隙结构的多孔沥青混合料对路表径流均具有一定的有机污染物和固体悬浮物的去除效果，去除效果与沥青混合料的空隙结构形成因素有关。在充分压实基础上通过级配设计所形成的不同空隙结构中，随着空隙率的降低，污染物去除效果越明显，兼顾透水与去污效果，推荐沥青混合料的有效空隙率为20％左右。
위료명학투수로면공제로표경류비점원오염적공효，재명학로표경류오염주요평개지표기출상，종불동공극결구력청혼합료적재료조성각도연구기공제로표경류오염적효능。시험결과표명，구유불동공극결구적다공력청혼합료대로표경류균구유일정적유궤오염물화고체현부물적거제효과，거제효과여력청혼합료적공극결구형성인소유관。재충분압실기출상통과급배설계소형성적불동공극결구중，수착공극솔적강저，오염물거제효과월명현，겸고투수여거오효과，추천력청혼합료적유효공극솔위20％좌우。
In order to clarify the controlling efficiency of runoff pollutant by porous asphalt ,the effi-ciency of controlling runoff pollutant has been studied from materials of porous asphalt based on the determining the main value indices of runoff pollutant .The experiment results show that the porous asphalts with different void structure all have certain removal effect on COD and SS .The removal effect is related to the form of void structure .On the basis of efficient compaction and gradation de-sign ,the removal effect is better with the decrease of void ratio .Balance to the permeability and re-moval effect ,the effective void ratio of porous asphalt is recommended to be 20% .