ATB-30在高速公路下面層的應(yīng)用技術(shù)研究
[Abstract]:The asphalt stabilized macadam mixture with large particle size has good ability to prevent reflection crack and resist rutting, which is mainly used in the base course of asphalt pavement structure. The research on the application of large size asphalt mixture to the lower layer of asphalt pavement is still in the initial stage in our country. In this paper, the technology of asphalt stabilized macadam mixture (ATB-30) applied to asphalt pavement underlayer is studied in detail. In this paper, the structure characteristics and strength forming mechanism of asphalt mixture are analyzed and studied. Aiming at a freeway, the technical performance requirements of ATB-30 raw materials are put forward, and the mix ratio of ATB-30 is designed by using large-scale Marshall test method. Rutting test and water stability test were carried out for asphalt mixture corresponding to the selected gradation. Through analysis and comparison, this paper puts forward the optimum production mix ratio result of the comprehensive performance of ATB-30 underlayer, based on the Technical Specification for Highway Asphalt pavement Construction (JTG F40-2004), from the aspects of construction preparation, mixing, transportation and spreading of asphalt mixture, In the aspects of rolling and joint treatment, the construction technology of ATB-30 lower layer is studied, and the construction technology scheme and construction quality control system of asphalt stabilized macadam mixture are put forward.
【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】:2014
【分類(lèi)號(hào)】:U414
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