【作者】 李雷；

【导师】 马松林；

【作者基本信息】 哈尔滨工业大学 ， 道路与铁道工程， 2011， 硕士

【摘要】 目前我国的路面形式以沥青路面为主,而且大部分的沥青路面都已经到了使用年限,相继进入了维修养护的阶段。沥青路面冷再生技术就是将废旧沥青路面材料与新加入的稳定剂和新骨料共同搅拌后直接铺筑在原路面结构中。该技术能够充分利用废旧沥青路面材料,具有良好的经济和社会效益,符合可持续发展的观念,是一项利国利民的技术。同时冷再生材料具有良好的路用性能,路面再生效果良好。但是目前国内对于沥青路面冷再生工艺的研究尚不完善,尤其是冷再生材料比较复杂,对于其性能的研究尚存不足。本文以《寒区旧沥青路面就地冷再生技术应用研究》这一课题为依托,主要研究以水泥为稳定剂的水稳砂砾基层沥青路面就地冷再生材料做基层材料的路用性能,从而为沥青路面冷再生的结构设计和材料设计参数提供推荐值。首先,确定现场铣刨的路面材料的性质,对铣刨的路面材料进行试验分析,调整其级配,保证冷再生材料具有合理的级配。然后,本文对不同水泥剂量、不同面基层厚度比、不同新骨料掺加量和不同龄期的水泥稳定水稳砂砾基层沥青路面冷再生材料的路用性能,包括无侧限抗压强度、劈裂强度、抗压回弹模量、温缩性能和抗冻性能,进行室内试验研究。通过对试验数据的分析,确定水泥稳定冷再生材料的力学性能及发展规律,以及不同影响因素对其路用性能的影响,确定合理的配合比。最后,本文结合黑龙江省全深式就地冷再生项目对沥青路面的冷再生效果和经济、社会效益进行研究。经过试验研究得出:水泥稳定水稳砂砾沥青路面冷再生材料的7d无侧限抗压强度推荐范围为:2.3~2.8MPa。同时,水泥稳定沥青路面冷再生材料在0℃~-15℃温度区间时受温度影响最为显著。另外,通过对就地冷再生项目实例进行经济分析,得出了采用水泥稳定就地冷再生工艺与传统改建方法相比能够节省30%以上,具有良好的经济效益。更多还原

【Abstract】 At present, the pavement in China is primarily made by the cement stabilized sand gravel asphalt pavement, and considering the designed year of the pavement, most of the pavement has already reached its deadline of the use and entered the maintainance phase. The asphalt pavement cool regenerated technology is to mix the waste asphalt pavement materials and the stabilizer and newaggregate together, after then new createis directly paved in original pavement structure. This technology can make full use of waste asphalt pavement materials, and has the good economic and social benefits, and according with the idea of the sustainable development. Meanwhile, cold regeneration material has good way-use performance and pavement regeneration effect. But the current domestic asphalt pavement for cold regeneration technology research is not perfect, especially cold regeneration material is more complex, for the performance of the research still save insufficient.The paper relying on The cold area of the cement stable cold regeneration of process research project, it mainly researchesthe way-use performance of cement stabilizers asphalt pavement materials cold regeneration of basic materials. Thereby, provides recommend of cold regeneration structure and materialdesignparameter of the asphalt pavement.Firstly, determineand analyze the nature of pavement materials by the pavement planer, then adjusting its grade and guarantying the cold regeneration material according with reasonable grade. In addition, determine the compaction character ofthe cement stable cold regeneration materialin differentproportion.Secondly, this paper researches the way-use performanceof the cement stable asphalt pavement of cold regenerationmaterial with different cement dose, different basic thickness ratio, different new aggregate quantity and different ages, including the unconfined compressive strength, splitting strength and compressive resilience modulus and temperature shrinkage properties and anti-freeze properties. Through the analysis of the test data, determine the mechanical property and the development regularity of cement stable cold regeneration material, plusthe influence of way-use performance in different affecting factors, anddeterminethe reasonable proportion.Finally, this paper will contrast cold regeneration effect and economic and social benefits of the asphalt pavement cold regeneration projects based on the deep type in Heilongjiang province.By test of the cement stable that cold regeneration of asphalt pavement materials 7d no lateral restraint compressive strength recommend areas: 2.3~2.8MPa. At the same time, the temperature has the most influencedfor the cement stable asphalt pavement materials at 0℃~15℃temperature range. In addition, through the cold regeneration project example on economic analysis, it is concluded that the cement stabilized by local cold regeneration process and traditional reconstruction method can save more than 30%, compared with good economic benefit.更多还原