摘要
叙述了多孔沥青路面试件的室内吸声试验,介绍了公路现场汽车噪音测试结果,表明适当增大路面孔隙率,可以降低路面噪音2～4 dBa。
This paper describes the liboratory tests of noise absorption coefficient in porous bituminous mixes and introduces the test results of the traffic noise in porous bituminous pavement.It is a fact that the traffic noise may be reduced 2～4 dBa,if the voids of pavement in- crease appopriately.
出处
《石油沥青》
1999年第2期34-36,共3页
Petroleum Asphalt
