旧沥青路面温拌再生技术的研究

发布时间：2018-05-04 07:16

本文选题：旧沥青路面 + 温拌技术　；参考：《大连海事大学》2014年硕士论文

【摘要】：沥青路面的设计寿命一般为12-15年。在运营期内,沥青路面在行车荷载、气候等综合作用下,容易出现各种病害,因此当沥青路面的行车舒适性和安全性达到一定限度时,就需要对其进行维修。我国每年进行维修养护的沥青路面总里程较大,产生的废旧沥青路面材料若不加以利用,将会对环境造成严重污染、资源极大浪费。据不完全统计,如果对这些沥青路面废旧材料加以利用,每年可以节省材料费二十五亿元以上,且以后每年会按照较大的比例增长。本研究首先对全国范围内沥青路面的使用状况进行了普查,掌握了国内每年需要改造的沥青路面的大致规模,对采用旧沥青路面再生技术可能产生的经济效益进行了估值。再则,对现有旧沥青路面材料的热拌技术和温拌技术的优缺点进行了对比,得出了采用温拌技术的可行性和先进性。再次,对国内外温拌沥青技术的发展进行了归纳总结,对现有温拌剂进行了技术分类。通过对温拌沥青材料和技术的调查分析,明确了目前国内外三大类温拌剂,即发泡型、降粘型和表面活性型温拌剂的作用原理,同时根据国内市场上温拌剂的应用情况,将表面活性型温拌剂作为本研究旧沥青路面温拌再生技术的材料。论文对旧沥青路面产生的铣刨料的含水率、沥青含量进行了测定,并对其中沥青、集料性能进行评价；在兼顾混合料的性能和矿料合成级配的同时确定了旧沥青路面铣刨料掺量；通过按比例添加温拌剂确定了温拌再生沥青混合料的油石比；提出了温拌再生沥青混合料的配合比设计方法,开展了温拌再生沥青混合料的高温稳定性、低温抗裂性和水稳定性的路用性能试验研究：最终通过旧沥青路面温拌再生实体工程及后期跟踪观测,进一步验证温拌再生沥青路面的各项性能。
[Abstract]:The design life of asphalt pavement is generally 12-15 years. During the operation period, the asphalt pavement is prone to various diseases under the integrated effect of driving load and climate. Therefore, it is necessary to maintain the asphalt pavement when the traffic comfort and safety reach a certain limit. The total mileage of the asphalt pavement in our country is compared to the asphalt pavement in our country. If the waste asphalt pavement material produced is not used, it will cause serious pollution and waste of resources. According to incomplete statistics, if the waste materials are used, the cost of material can be saved more than two billion and five hundred million yuan per year, and it will increase in a larger proportion every year. First of all this study is on the whole country. The use of the asphalt pavement in the range is surveyed, the rough scale of the asphalt pavement which needs to be reformed every year in China is mastered, and the possible economic benefits of the old asphalt pavement recycling technology are evaluated. Then, the advantages and disadvantages of the hot mixing technology and the warm mixing technology of the existing old asphalt pavement materials are compared. The feasibility and advanced nature of warm mixing technology were adopted. The development of warm mix asphalt technology at home and abroad was summarized, and the existing warm mixing agent was classified. Through the investigation and analysis of the material and technology of warm mix asphalt, the three kinds of warm mixing agents at home and abroad, namely, foaming, viscosity reducing and surface active warm mixing agents, were clarified. At the same time, according to the application of the warm mixing agent in the domestic market, the surface active warm mixing agent is used as the material for the warm mixing technology of the old asphalt pavement. The moisture content and the asphalt content of the milling material produced on the old asphalt pavement are measured, and the performance of the asphalt and the aggregate is evaluated. The mixture ratio of the old asphalt pavement was determined at the same time, and the asphalt mixture ratio was determined by adding warm mixing agent in proportion. The mixture ratio design method of warm mixed asphalt mixture was put forward, the high temperature stability, low temperature cracking resistance and water of the mixture of warm mixed asphalt were carried out. Experimental study on stability of road performance: finally, the performance of warm mixed asphalt pavement was further verified through the old asphalt pavement warm mixed regenerated solid engineering and later tracking observation.

【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414

【参考文献】