新型橡膠粉瀝青結(jié)合料及瀝青路面級(jí)配的研究
[Abstract]:As a kind of recyclable material, it shows great application potential in road engineering field with its unique structure and performance. From the present situation of engineering, the common function of many factors limits the popularization and application of asphalt pavement, and deeply studies the influence law of asphalt pavement on the gradation and service performance of asphalt mixture, and has important theoretical significance and application value. Based on the investigation and analysis, the optimum design of asphalt mixture is determined, and the performance of asphalt mixture is improved effectively, so as to meet the specific requirements of different applications. In this paper, a lot of indoor research work is carried out on four kinds of asphalt binder and 8 kinds of ore-grade mixed asphalt mixture, and the differences and advantages of the new material and common asphalt are comprehensively analyzed. Through DSR experiment, BBR test and conventional asphalt test (softening point test, Brinell viscosity test and short-term aging test), the difference between the technical properties and the performance of asphalt, SBS asphalt and matrix asphalt was studied. In this paper, the interference effect law of the original grading is studied by volume replacement and unequal volume replacement test with the designed framework compaction grade. The results show that compared with common asphalt, the asphalt has good homogeneous, high-temperature, temperature-sensitive and anti-aging properties, but the low-temperature and linear viscoelastic range is small. The high temperature, low temperature and water stability of the mixed asphalt mixture under different substitution ratios are studied systematically, and the optimization of the grading is of reference value.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2016
【分類(lèi)號(hào)】:U414
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