本文選題：瀝青混合料 + 組成設(shè)計方法�。� 參考：《長沙理工大學(xué)》2014年碩士論文

【摘要】：目前,國內(nèi)外對ATB混合料設(shè)計方法的研究甚少,現(xiàn)有的瀝青混合料設(shè)計方法中并不能很好的平衡每個路用性能之間的關(guān)系,某個路用性能較好可能會導(dǎo)致相對應(yīng)的路用性能較差,從ATB混合料綜合性能出發(fā),研究基于綜合性能的ATB組成設(shè)計方法,對我國的重載交通高等級公路的施工和建設(shè)具有重大意義。在借鑒國內(nèi)外研究的基礎(chǔ)上,本文通過室內(nèi)試驗與數(shù)據(jù)分析,對ATB混合料路用性能的影響因素進(jìn)行深入分析,并研究了基于綜合性能的ATB混合料組成設(shè)計方法。理論分析了瀝青路面病害現(xiàn)象,包括車轍、低溫開裂、水損害與反射裂縫,研究了病害產(chǎn)生機(jī)理與影響因素。在理論分析的基礎(chǔ)上,提出了ATB混合料應(yīng)具備的綜合技術(shù)特性。理論上對比分析瀝青混合料路用性能的試驗方法,在試驗基礎(chǔ)上,選取適合ATB混合料高溫、低溫與水穩(wěn)性能的試驗方法與評價指標(biāo),并提出混合料抗反射裂縫試驗方法與評價指標(biāo)。通過試驗對比分析粗細(xì)集料比對ATB混合料綜合性能的影響,基于粗細(xì)集料比與ATB混合料綜合性能的關(guān)系,,綜合平衡各個方面的路用性能,推薦粗細(xì)集料比在62/38-71/29時,ATB混合料滿足全部技術(shù)要求。在試驗的基礎(chǔ)上,分析不同瀝青、粉膠比與瀝青膜厚度對ATB混合料綜合性能的影響。設(shè)計ATB混合料時,建議通常情況下選用SBS改性瀝青,粉膠比取1.0～1.2,瀝青膜厚度取11-9μm；在高溫性能要求較高的道路建議選用低標(biāo)號基質(zhì)瀝青或者SBS改性瀝青,粉膠比取1.2～1.4,瀝青膜厚度取10-9μm；對寒區(qū)道路建議選用高標(biāo)號基質(zhì)瀝青或者SBS改性瀝青,粉膠比取0.8-1.0,瀝青膜厚度取11-10gm。采用抗剪強(qiáng)度、彎拉應(yīng)變與綜合抗裂度確定最佳瀝青用量,從原材料選擇、級配設(shè)計、瀝青用量的確定與路用性能驗證四個方面出發(fā),提出了基于綜合性能的ATB混合料組成設(shè)計方法。
[Abstract]:At present, there is little research on ATB mixture design method at home and abroad. The existing asphalt mixture design method can not balance the relationship between each road performance. A better road performance may lead to poor road performance. Based on the comprehensive performance of ATB mixture, the design method of ATB composition based on comprehensive performance is studied. It is of great significance to the construction and construction of heavy-haul high-grade highway in China. On the basis of domestic and foreign research, this paper deeply analyzes the influencing factors of ATB mixture pavement performance through indoor test and data analysis, and studies the design method of ATB mixture composition based on comprehensive performance. The phenomena of asphalt pavement diseases, including rutting, low temperature cracking, water damage and reflection cracks, are analyzed theoretically, and the mechanism and influencing factors of the disease are studied. On the basis of theoretical analysis, the comprehensive technical characteristics of ATB mixture are put forward. The test methods of asphalt mixture road performance are compared and analyzed theoretically. On the basis of the test, the test methods and evaluation indexes suitable for high temperature, low temperature and water stability of ATB mixture are selected. At the same time, the test method and evaluation index of anti-reflection crack of mixture are put forward. The influence of the ratio of coarse aggregate to fine aggregate on the comprehensive performance of ATB mixture is compared and analyzed. Based on the relationship between the ratio of coarse and fine aggregate and the comprehensive performance of ATB mixture, the road performance of each aspect is comprehensively balanced. It is recommended that ATB mixture meet all technical requirements at 62 / 38-71 / 29. On the basis of experiments, the effects of different asphalt, binder ratio and asphalt film thickness on the comprehensive properties of ATB mixture are analyzed. In the design of ATB mixture, it is suggested that SBS modified asphalt should be selected, the ratio of powder to binder is 1.0 渭 m, the thickness of asphalt film is 11-9 渭 m, and the low grade base asphalt or SBS modified asphalt is recommended for the road with high temperature performance. The ratio of powder to binder is 1.2 ~ 1.4 and the thickness of asphalt film is 10 ~ (-9) 渭 m. It is suggested that high grade base asphalt or SBS modified asphalt should be used for cold road, the ratio of powder to binder is 0.8-1.0, and the thickness of asphalt film is 11-10 g 路m ~ (-1). The optimum asphalt content is determined by shear strength, flexural strain and comprehensive crack resistance, starting from four aspects: raw material selection, gradation design, asphalt dosage determination and road performance verification. The composition design method of ATB mixture based on comprehensive performance is put forward.
【學(xué)位授予單位】：長沙理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414
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本文編號：1794840