改性乳化沥青及其在微表处养护工程中的应用研究
发布时间：2018-10-25 19:56
【摘要】：当前，我国的高速公路里程已达10.5万公里，总公路里程达440万公里，大量已建成通车的公路进入养护维修周期，急需推出经济有效且施工便捷的预防性养护方法。微表处是一种由聚合物改性乳化沥青、集料、填料、水和外加剂按照一定的配比，通过专门的施工设备摊铺到原路面上，达到迅速开放要求的薄层结构。微表处是一种经济环保的预防性养护措施，施工速度快，可快速开放交通。微表处可以可有效修复车辙、改善路面抗滑效果，延缓路面使用寿命，是一种适合推广的预防性养护技术。 本文针对微表处的主要影响因素改性乳化沥青做了研究。文章分析讨论了乳化剂和改性剂的选择方法，选择了适当的乳化剂和阳离子丁苯乳液。分析了阳离子乳化剂及阳离子丁苯胶乳对改性乳化沥青蒸发残留物性质和施工性的影响规律，乳化改性沥青的配方得到了优化。对乳化改性沥青的主要性能以及改性乳化沥青和集料的配伍性进行了研究。 此外，本文进行了微表处混合料的配合比研究，并进一步对混合料的施工性能和路用性能进行了研究，总结了乳化剂种类、集料级配及性质、油石比、添加剂等重要因素对混合料综合性能的影响规律。选择了适当的时机铺筑微表处试验段，得到较好的预期效果。
[Abstract]:At present, the highway mileage of our country has reached 105000 kilometers, and the total highway mileage has reached 4.4 million kilometers. A large number of highways that have been built and opened to traffic have entered the maintenance and repair cycle. It is urgent to introduce the economical, effective and convenient preventive maintenance method. Microsurfacing is a kind of thin-layer structure with polymer modified emulsified asphalt, aggregate, filler, water and admixture spread to the original pavement by special construction equipment. Microsurfacing is an economic and environmental protection preventive maintenance measure. Micro-surfacing can effectively repair ruts, improve the anti-skid effect of pavement, delay the service life of pavement, and is a kind of preventive maintenance technology suitable for popularization. In this paper, the main influencing factors of microsurfacing modified emulsified asphalt have been studied. The selection methods of emulsifier and modifier were analyzed and discussed. The suitable emulsifier and cationic butadiene emulsion were selected. The effects of cationic emulsifier and cationic styrene butadiene latex on the properties and construction properties of evaporative residue of modified emulsified asphalt were analyzed. The formulation of emulsified modified asphalt was optimized. The main properties of emulsified asphalt and the compatibility of modified asphalt and aggregate were studied. In addition, the mixture ratio of micro-surfacing mixture is studied in this paper, and the construction performance and road performance of the mixture are further studied, and the types of emulsifier, aggregate gradation and properties, oil stone ratio are summarized. The influence of additives and other important factors on the comprehensive performance of the mixture. A suitable time is chosen to construct the test section of microsurfacing, and the expected results are obtained.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414;U418
本文编号：2294674
[Abstract]:At present, the highway mileage of our country has reached 105000 kilometers, and the total highway mileage has reached 4.4 million kilometers. A large number of highways that have been built and opened to traffic have entered the maintenance and repair cycle. It is urgent to introduce the economical, effective and convenient preventive maintenance method. Microsurfacing is a kind of thin-layer structure with polymer modified emulsified asphalt, aggregate, filler, water and admixture spread to the original pavement by special construction equipment. Microsurfacing is an economic and environmental protection preventive maintenance measure. Micro-surfacing can effectively repair ruts, improve the anti-skid effect of pavement, delay the service life of pavement, and is a kind of preventive maintenance technology suitable for popularization. In this paper, the main influencing factors of microsurfacing modified emulsified asphalt have been studied. The selection methods of emulsifier and modifier were analyzed and discussed. The suitable emulsifier and cationic butadiene emulsion were selected. The effects of cationic emulsifier and cationic styrene butadiene latex on the properties and construction properties of evaporative residue of modified emulsified asphalt were analyzed. The formulation of emulsified modified asphalt was optimized. The main properties of emulsified asphalt and the compatibility of modified asphalt and aggregate were studied. In addition, the mixture ratio of micro-surfacing mixture is studied in this paper, and the construction performance and road performance of the mixture are further studied, and the types of emulsifier, aggregate gradation and properties, oil stone ratio are summarized. The influence of additives and other important factors on the comprehensive performance of the mixture. A suitable time is chosen to construct the test section of microsurfacing, and the expected results are obtained.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414;U418
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