目前我国大部分道路工程在设计过程中均考虑了防水措施,如:改善面层粒料级配(沥青碎石混合料提高到沥青混凝土);做乳化沥青下封层等,但从使用情况来看,随着使用期的增长,面层逐渐开裂,雨水渗入,在车辆的反复碾压下出现松散、唧泥现象,最终使路面遭到破坏。因此,提高 At present, most of the road engineering in our country have taken waterproof measures into account in the design process, such as: improving the grading of the surface granule (asphalt and gravel mixture to asphalt concrete); making the emulsified asphalt under the sealer, but from the use situation As the service life increased, the surface gradually cracked and the rain infiltrated into the vehicle. Loose and muddy phenomena were observed under the repeated rolling of the vehicle, eventually causing the road surface to be destroyed. So raise