冷施工沥青材料表面处治技术

发布时间：2018-01-21 11:52

本文关键词： 预防性养护技术微表处 SBS改性乳化沥青路用性能轮胎/路面噪声室内轮胎加速滚动下滑测试系统　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着国民经济的快速增长，我国的公路事业迎来了一个迅猛发展的高峰期。然而，随着公路的大量建设，交通量也迅速增长，而目前我国的交通监管制度还不完善，超载现象比较严重，加之我国“重建轻养”观念比较严重，导致很多高等级公路在早期就出现比较严重的损坏。因此，在合适的时机对路面进行预防性养护就显得非常有必要。本研究在以往国内外研究的基础上，以微表处技术为参考，旨在研究出一种路用性能较优，且噪声比传统微表处要小的预防性养护技术。研究主要从以下四方面进行展开：一是研制用于实现冷施工的SBS改性乳化沥青；二是进行混合料配合比设计；三是对混合料的路用性能进行分析研究；四是对混合料的降噪性能进行研究。研制SBS改性乳化沥青采用的是先改性后乳化的制备工艺，为了制备出性能优良的SBS改性乳化沥青，研究采用了一种阳离子乳化剂D与一种非离子乳化剂E来复配进行乳化，并采用了有机稳定剂A与无机稳定剂B两种稳定剂来提高乳液的稳定性。混合料级配采用的是MS-Ⅲ型级配中值，同时在其中加入了3%的20目橡胶颗粒及0.2%的长度为6mm的聚酯纤维。对其进行湿轮磨耗试验、抗轮辙变形试验、抗滑性能试验及水稳性能试验，试验结果表明本研究所定的SBS改性乳化沥青混合料比传统微表处所用的SBR改性乳化沥青混合料具有更好的路用性能。为了评价混合料的降噪性能，，本研究自主研制了轮胎下滑轨道系统，并采用本实验室自主研发的室内轮胎加速滚动下滑试验方法测试混合料试件板的噪声，试验结果表明橡胶及纤维的加入有效地降低了混合料的噪声值。
[Abstract]:With the rapid growth of national economy, China's highway industry ushered in a rapid development peak. However, with a large number of highway construction, traffic volume is also growing rapidly. At present, the traffic supervision system of our country is not perfect, the phenomenon of overload is serious, and the concept of "reconstruction and light maintenance" in our country is more serious, resulting in many high-grade highways appear more serious damage in the early stage. It is very necessary to carry out preventive maintenance of the pavement at the right time. On the basis of previous studies at home and abroad and with the reference of micro-surfacing technology, the purpose of this study is to find out a better road performance. The research is mainly carried out from the following four aspects: first, the development of SBS modified emulsified asphalt used for cold construction; Second, mix design of mixture; The third is to analyze and study the pavement performance of the mixture. Fourth, the noise reduction performance of the mixture was studied. The SBS modified emulsified asphalt was prepared by the technology of first modification and then emulsification, in order to prepare the excellent performance of SBS modified emulsified asphalt. A cationic emulsifier D and a non-ionic emulsifier E were used to emulsify. Two stabilizers, organic stabilizer A and inorganic stabilizer B, were used to improve the stability of emulsion. At the same time, 20 mesh rubber particles of 3% and 6 mm long polyester fiber of 0.2% were added. The wet wheel wear test, wheel rutting deformation test, slide resistance test and water stability test were carried out. The experimental results show that the SBS modified emulsified asphalt mixture has better road performance than the SBR modified emulsified asphalt mixture used in the traditional microsurfacing. In order to evaluate the noise reduction performance of the mixture. In this study, the tire glide track system was developed, and the indoor tire accelerated rolling slide test method was used to test the noise of the mixture plate. The test results show that the addition of rubber and fiber can effectively reduce the noise value of the mixture.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414

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