温拌胶粉改性沥青混合料性能与环保功效研究

发布时间：2019-05-15 20:47

【摘要】：目前国内外绿色生态型道路用混合料多为温拌改性沥青混合料和胶粉改性沥青混合料,温拌胶粉改性沥青混合料方面研究较少,在大力推进绿色生态型道路建设之际,开发路用性能与环保功效良好的温拌胶粉改性沥青混合料具有重要的现实意义。本论文全面调查了国内外温拌胶粉改性沥青混合料的研究现状,结合现有技术经验,从流变性能、路用性能、环保性能及施工质量控制等四个方面进行了系统研究,深入揭示了温拌胶粉改性沥青的作用机理、制作过程及环保效应,并进行了温拌胶粉改性沥青混合料实验路铺筑,检测其在实际工程中的应用效果。本文主要研究内容如下:(1)确定了温拌胶粉改性沥青的制备工艺,通过正交试验测定了温拌胶粉改性沥青的粘度、低温性能和高温性能等路用性能指标,评价了胶粉细度、胶粉掺量、温拌剂掺量等三个因素对温拌胶粉改性沥青的流变性能的影响规律。(2)基于“体积设计法”进行了温拌胶粉改性沥青混合料配合比设计,对比分析了温拌条件下胶粉细度及掺量对胶粉改性沥青混合料路用性能的影响规律,以及不同温拌工艺条件下胶粉改性沥青混合料的路用性能变化规律。(3)通过室内吸声系数试验和现场噪声监测,深入研究了温拌胶粉改性沥青混合料的降噪效应,通过热量公式计算和和实际检测,评价了温拌胶粉改性沥青混合料的环保效应。(4)进行了温拌胶粉改性沥青混合料试验路铺筑,系统研究了温拌胶粉改性沥青混凝土的施工工艺及施工质量控制,同时验证了温拌胶粉改性沥青混合料的性能与工程应用效果,为温拌胶粉改性沥青混合料的推广应用提供依据。
[Abstract]:At present, most of the green ecological road mixtures at home and abroad are warm mixed modified asphalt mixture and rubber powder modified asphalt mixture, while the research on warm mixed rubber powder modified asphalt mixture is less, which is at the time of vigorously promoting the construction of green ecological road. It is of great practical significance to develop asphalt mixture with good road performance and environmental protection effect. In this paper, the research status of warm mixed rubber powder modified asphalt mixture at home and abroad is investigated comprehensively, and the Rheological properties, road performance, environmental protection performance and construction quality control are systematically studied in combination with the existing technical experience. The action mechanism, manufacturing process and environmental protection effect of warm mixed rubber powder modified asphalt are revealed deeply, and the experimental road paving of warm mixed rubber powder modified asphalt mixture is carried out to test its application effect in practical engineering. The main contents of this paper are as follows: (1) the preparation process of warm mixed rubber powder modified asphalt was determined, the viscosity, low temperature performance and high temperature performance of warm mixed rubber powder modified asphalt were measured by orthogonal test, and the fineness of rubber powder was evaluated. The effects of three factors, such as the content of rubber powder and the content of warm mixing agent, on the Rheological properties of asphalt modified with warm mix rubber powder. (2) based on the "volume design method", the mixture proportion design of modified asphalt mixture with warm mixed rubber powder was carried out. The effects of the fineness and content of rubber powder on the road performance of rubber powder modified asphalt mixture were compared and analyzed under the condition of warm mixing. And the change law of road performance of rubber powder modified asphalt mixture under different warm mixing process conditions. (3) through indoor sound absorption coefficient test and field noise monitoring, the noise reduction effect of warm mix rubber powder modified asphalt mixture is deeply studied. Through the calculation of heat formula and the actual test, the environmental protection effect of warm mixed rubber powder modified asphalt mixture was evaluated. (4) the test road paving of warm mixed rubber powder modified asphalt mixture was carried out. The construction technology and construction quality control of warm mixed rubber powder modified asphalt concrete are systematically studied, and the performance and engineering application effect of warm mixed rubber powder modified asphalt mixture are verified at the same time. It provides the basis for the popularization and application of warm mixed rubber powder modified asphalt mixture.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U414

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