橡胶沥青在城市道路改造中的应用
发布时间：2018-08-03 11:06
【摘要】：废旧橡胶是高分子化学材料，焚烧产生的有毒有害物质不仅会污染环境，还会危害人们的身体健康，而堆放和填埋如此庞大数量的废弃橡胶不仅会占用和浪费大量的土地资源，而且还会破坏周围的生态环境，，影响植被的生长，造成严重的恶性循环。因此，将这些废旧轮胎加工成橡胶粉并用于改性沥青道路施工中去，不仅减少废弃物的产生，实现资源的有效循环利用，而且还可以降低大量废旧轮胎带来的严峻的环境和安全影响。同时，橡胶沥青本身所具备优良的路用性能在城市道路旧路改造中可以得到很好的利用。因此，本文在不同目数和不同掺量的橡胶粉的基础上，研究橡胶沥青性能指标、橡胶沥青最佳油石比确定及橡胶沥青混合料的高温稳定性和水稳定性，并将研究成果应用到橡胶沥青在城市道路改造过程中的施工技术和质量控制中。 本文根据国内外研究的成果，以不同目数和掺量的橡胶粉制备得到的12种橡胶沥青，按照规范要求的试验方法进行沥青性能试验，分析不同目数和不同掺量胶粉制备的橡胶粉改性沥青性能方面变化规律。然后选择两种有粗细差别的SMA-13级配曲线作对比，按照选定的级配曲线，以12种不同目数和掺量的橡胶沥青为原材料拌制混合料，按照马歇尔试验方法确定24种类型混合料的最佳油石比，分析级配曲线粗细对橡胶沥青混合料配合比的影响。再次，对确定的24种类型混合料按照最佳油石比成型试件，研究橡胶粉不同目数和不同掺量对橡胶粉改性沥青混合料车辙及抗水损害路用性能的影响。研究结果表明，橡胶沥青SMA具有良好的高温稳定性、低温抗裂性及疲劳特性，但水稳定性略低。最后结合福州市五四路道路改造工程，对橡胶沥青混凝土的施工工艺和质量控制进行探索。
[Abstract]:Waste rubber is a high molecular chemical material. The toxic and harmful substances produced by incineration will not only pollute the environment, but also endanger people's health. Stacking and landfill of such a large amount of waste rubber will not only occupy and waste a large number of land resources, And it will destroy the surrounding ecological environment, affect the growth of vegetation, causing a serious vicious circle. Therefore, processing these waste tires into rubber powder and using them in the construction of modified asphalt roads will not only reduce the generation of waste, but also realize the effective recycling of resources. It can also reduce the severe environmental and safety impact caused by a large number of waste tyres. At the same time, the rubber asphalt itself has the excellent road performance in the city road old road reconstruction can be very good use. Therefore, on the basis of rubber powder with different mesh number and different amount of rubber powder, the performance index of rubber asphalt, the determination of the best ratio of rubber asphalt to asphalt and the high temperature stability and water stability of rubber asphalt mixture are studied in this paper. The research results are applied to the construction technology and quality control of rubber asphalt in the process of urban road reconstruction. According to the research results at home and abroad, 12 kinds of rubber asphalts were prepared from rubber powder with different mesh number and content, and the asphalt performance tests were carried out according to the test methods required by the specifications. The properties of rubber powder modified asphalt prepared with different mesh number and different amount of rubber powder were analyzed. Then two kinds of SMA-13 gradation curves with different thickness are selected as contrast. According to the selected gradation curve, 12 kinds of rubber asphalt with different mesh number and content are used as raw materials to mix the mixture. According to the Marshall test method, the optimum asphalt ratio of 24 kinds of mixtures was determined, and the influence of the gradation curve thickness on the mixture ratio of rubber asphalt mixture was analyzed. Thirdly, the effects of rubber powder number and content on rutting and road performance of asphalt mixture modified by rubber powder were studied. The results show that the rubber asphalt SMA has good high temperature stability, low temperature crack resistance and fatigue property, but the water stability is slightly lower. Finally, the construction technology and quality control of rubber asphalt concrete are explored in combination with the reconstruction project of the 4th Route Road in Fuzhou.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414
本文编号：2161551
[Abstract]:Waste rubber is a high molecular chemical material. The toxic and harmful substances produced by incineration will not only pollute the environment, but also endanger people's health. Stacking and landfill of such a large amount of waste rubber will not only occupy and waste a large number of land resources, And it will destroy the surrounding ecological environment, affect the growth of vegetation, causing a serious vicious circle. Therefore, processing these waste tires into rubber powder and using them in the construction of modified asphalt roads will not only reduce the generation of waste, but also realize the effective recycling of resources. It can also reduce the severe environmental and safety impact caused by a large number of waste tyres. At the same time, the rubber asphalt itself has the excellent road performance in the city road old road reconstruction can be very good use. Therefore, on the basis of rubber powder with different mesh number and different amount of rubber powder, the performance index of rubber asphalt, the determination of the best ratio of rubber asphalt to asphalt and the high temperature stability and water stability of rubber asphalt mixture are studied in this paper. The research results are applied to the construction technology and quality control of rubber asphalt in the process of urban road reconstruction. According to the research results at home and abroad, 12 kinds of rubber asphalts were prepared from rubber powder with different mesh number and content, and the asphalt performance tests were carried out according to the test methods required by the specifications. The properties of rubber powder modified asphalt prepared with different mesh number and different amount of rubber powder were analyzed. Then two kinds of SMA-13 gradation curves with different thickness are selected as contrast. According to the selected gradation curve, 12 kinds of rubber asphalt with different mesh number and content are used as raw materials to mix the mixture. According to the Marshall test method, the optimum asphalt ratio of 24 kinds of mixtures was determined, and the influence of the gradation curve thickness on the mixture ratio of rubber asphalt mixture was analyzed. Thirdly, the effects of rubber powder number and content on rutting and road performance of asphalt mixture modified by rubber powder were studied. The results show that the rubber asphalt SMA has good high temperature stability, low temperature crack resistance and fatigue property, but the water stability is slightly lower. Finally, the construction technology and quality control of rubber asphalt concrete are explored in combination with the reconstruction project of the 4th Route Road in Fuzhou.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414
【参考文献】
相关期刊论文 前7条
1 刘红瑛;;美国AASHTO改性沥青室内评价新方法及指标[J];中外公路;2011年04期
2 张玉晶;;改性沥青在高等级路面中施工技术推广[J];黑龙江科技信息;2011年17期
3 赵洪梅;;用改性沥青做路面封层的施工工艺[J];黑龙江科技信息;2011年19期
4 杜光涛;;丁苯胶乳改性沥青性能分析[J];黑龙江科技信息;2011年19期
5 魏建明;曾韩平;周厚杰;翟林;;CRC+AC层间粘结材料路用性能试验分析[J];交通科技与经济;2011年05期
6 洪海;;浅谈改性沥青的发展[J];黑龙江交通科技;2011年08期
7 孙美英;;制作工艺对路用改性沥青质量的影响[J];交通世界(建养.机械);2011年07期
本文编号：2161551
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2161551.html
