The Research Of The High Temperature Disease And Controlling Measure Of Hebei Province Highway Bituminous Pavement

Wheel rut and other flow distortion are ordinariest bituminous pavement damage phenomenon on international. According to the international statistics, in the asphalt bituminous pavement service, about 80% is because of the wheel rut distortion. With the dehiscence, the water damage compares, the wheel rut hazardous nature is biggest, threatens the traffic safety directly. At the same time, the wheel rut damage service is most difficult, because the wheel rut not only occurs in the surface, also endangers under the surface layer frequently, this is the various countries in the preventing and controlling bituminous pavement damage, always places the preventing and controlling wheel rut the first reason.The wheel rut refers to the wheelpath that the recompression is dense or the detrusion forms the varying degree gradually rut. Causes the wheel rut disease factor quite to be many, this topic through conducts the investigation and study to the Hebei Province wheel rut disease quite typical highway road section, and maintains the measure to disease origin to conduct the detailed investigation and study and the analysis.According to the topic action program we to the Jingshi highway, the Jingqin highway, the Jingqin Langfang section, guarantee the Tianjin highway, proclaim the greatly highway the wheel rut situation to carry on the investigation, has carried on the investigation to the Jingshi highway entire line, other four road sections choice wheel rut model road section each 5 kilometers carry on the investigation. The investigation content mainly included wheel rut station number, position, level and depth, pavement structure and design, raw material situation, the bituminous mixture mixture ratio investigation, the volume of traffic investigation, the recent years hottest season temperature investigation. And the test sample which brings back to the scene carries on in the room to experiment, including asphalt amount used, mineral aggregate gradation, core target and so on type density, residual percentage of voids, GTM examination. At the same time we carried on in the room to experiment the examination analysis, the basis experiment and examine the result, the reason which the analysis wheel rut produced. Through the above experimental study union project finally proposed actually corresponding maintains the countermeasure.