本文關(guān)鍵詞： 改性瀝青 相容性 熱穩(wěn)定性 合理摻量 抗車轍劑 增強劑　出處：《河北工業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：在瀝青路面中,瀝青的粘結(jié)作用是瀝青路面結(jié)構(gòu)穩(wěn)定、抵抗開裂的重要保證。瀝青分子量相對較低且分布較寬,其力學性能對溫度敏感性大,高溫易流淌,低溫易變脆,彈性、耐候性和耐久性能也不強。研究表明,向瀝青中添加高分子材料制備的聚合物改性瀝青,或使用基質(zhì)瀝青的同時向瀝青混合料中添加某些天然或人工合成的添加劑能夠改善瀝青路面的使用性能。本文依托河北省內(nèi)高等級公路建設(shè)中改性瀝青應用的實際狀況,對不同種類改性瀝青混合料路用性能進行了對比研究。研究了巖瀝青、湖瀝青、增強劑、抗車轍劑、SBS等改性劑與基質(zhì)瀝青的相容性,對改性劑在瀝青常溫區(qū)(15℃-60℃)的熱穩(wěn)定性進行比較。研究了不同改性劑以不同摻量用于AC-20C及AC-13C級配時混合料的物理力學指標及路用性能指標,提出了不同種類改性劑合理摻量范圍。研究了摻有抗車轍劑和增強劑路面的高溫、低溫性能和水穩(wěn)定性指標,研究了抗車轍劑、增強劑在施工環(huán)節(jié)上的技術(shù)問題。
[Abstract]:In asphalt pavement, the binder effect of asphalt is an important guarantee for the stability of asphalt pavement structure and the resistance to cracking. The molecular weight of asphalt is relatively low and its distribution is wider. Its mechanical properties are sensitive to temperature, easy to flow at high temperature, brittle and elastic at low temperature. The research shows that the polymer modified asphalt is prepared by adding polymer materials to the asphalt. Or adding some natural or synthetic additives to the asphalt mixture while using the base asphalt can improve the performance of the asphalt pavement. This paper relies on the actual situation of the application of modified asphalt in the construction of high grade highway in Hebei Province. The road performance of different kinds of modified asphalt mixture was studied. The compatibility of rock asphalt, lake asphalt, reinforcement agent, rutting resistant agent SBS and matrix asphalt was studied. The thermal stability of the modifier in the normal temperature region of asphalt was compared. The physical and mechanical indexes and road performance indexes of AC-20C and AC-13C gradation mixture with different modifiers and different contents were studied. The reasonable dosage range of different kinds of modifiers is put forward. The high temperature, low temperature performance and water stability index of pavement with anti-rutting agent and reinforcement agent are studied, and the technical problems of anti-rutting agent and reinforcing agent in construction link are studied.
【學位授予單位】：河北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U414
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本文編號：1550546