本文選題：高模量瀝青混合料　切入點：車轍病害　出處：《長安大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著交通量的逐年增加，車轍、疲勞開裂已成為高速公路的主要病害類型，尤其是調(diào)坡路面。國內(nèi)外研究表明，高模量瀝青混凝土是一種新型路面材料，可以有效減少路面的車轍病害。對江西省瀝青路面車轍病害問題進行了調(diào)研,借助有限元軟件分析病害的產(chǎn)生原因，，分析認為，中面層模量的提高，有利于提高路面抗車轍能力。采用針入度、粘度和SHRP分析體系，開展四種典型高模量膠結(jié)料試驗研究，提出高模量膠結(jié)料技術(shù)指標體系和要求。對比分析了EME20、AC20、Sup20等幾種混合料的路用性能，發(fā)現(xiàn)EME20瀝青混合料比AC20瀝青混合料抗疲勞性能要高。開展了高模量劑性能比選研究，鋪筑試驗路，總結(jié)了施工工藝。 綜合室內(nèi)試驗研究和現(xiàn)場研究內(nèi)容，得出主要結(jié)論：第一，在公路建設(shè)中建議采用具有更好高溫穩(wěn)定性能的國外高模量膠結(jié)料和1#國產(chǎn)高模量膠結(jié)料。第二，各項性能試驗結(jié)果表明：EME20相比于AC20和Sup20更易于壓實，且EME20空隙率最��；EME20混合料的抗車轍性能和抗疲勞性能要優(yōu)于另兩種混合料。第三，國內(nèi)的添加劑產(chǎn)品具備替代國外高模量劑產(chǎn)品的可能性。第四，試鋪瀝青混合料各體積指標、集料級配和壓實度均能滿足施工指導(dǎo)意見要求，并且該瀝青混合料具有較好的路用性能，抗車轍性能尤其突出。第五，作為有效減少車轍的技術(shù)手段，高模量瀝青混合料的低溫性能和抗水損害性能也較為優(yōu)異。
[Abstract]:With the increase of traffic volume, rutting and fatigue cracking have become the main disease types of expressway, especially the sloping pavement. Studies at home and abroad show that high modulus asphalt concrete is a new type of pavement material. The rutting disease of asphalt pavement in Jiangxi Province is investigated, and the causes of the disease are analyzed by means of finite element software. It is beneficial to improve the rutting resistance of road surface. Four typical high modulus binders are tested and studied by using penetration, viscosity and SHRP analysis system. The technical index system and requirements of high modulus binder are put forward. The road performance of several kinds of mixtures, such as EME20, AC20 and Sup20, are compared and analyzed. It is found that the fatigue resistance of EME20 asphalt mixture is higher than that of AC20 asphalt mixture. The performance comparison and selection of high modulus binder is carried out. The construction technology is summarized by paving the test road. The main conclusions are as follows: first, in highway construction, it is recommended to adopt foreign high modulus binder with better high temperature stability and high modulus cement made at 1#. The results of various performance tests show that EME20 is easier to be compacted than AC20 and Sup20, and the rutting resistance and fatigue resistance of EME20 mixture with minimum void ratio of EME20 are superior to those of the other two kinds of mixtures. Domestic additive products have the possibility of replacing foreign high modulus agent products. 4th, each volume index, aggregate gradation and compaction degree of asphalt mixture can meet the requirements of construction guidance. And the asphalt mixture has better road performance, especially anti-rutting performance. 5th, as a technical means to effectively reduce rutting, the low-temperature performance and water damage resistance of high-modulus asphalt mixture are also excellent.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414

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