本文關(guān)鍵詞： 橡膠改性瀝青 性能衰變 橡膠改性瀝青混合料 級(jí)配 碾壓　出處：《長沙理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著我國政府的支持,廢舊輪胎研磨成粉作為瀝青改性劑在道路工程中應(yīng)用得越來越多,其混合料鋪筑在路面能夠具有較好的高溫穩(wěn)定性、低溫抗裂性、水穩(wěn)定性以及路面抗滑性和耐磨性能。面對(duì)使用日漸增多的橡膠改性瀝青路面,本文從橡膠改性瀝青制備后存儲(chǔ)的性能衰變以及橡膠改性瀝青混合料存在碾壓難的問題等方面進(jìn)行研究及評(píng)價(jià),期待能夠解決橡膠改性瀝青路面施工中,橡膠改性瀝青的存放及混合料的碾壓控制問題。本文對(duì)橡膠粉路用的國內(nèi)外現(xiàn)狀進(jìn)行總結(jié)分析,確定好試驗(yàn)研究方案,從橡膠改性瀝青的性能出發(fā),再對(duì)其混合料展開研究。首先測試了不同加工溫度下制備的橡膠改性瀝青存儲(chǔ)時(shí)各性能的指標(biāo)值,通過衰變規(guī)律選定橡膠改性瀝青在180℃條件下加工較適宜,且制備好的橡膠改性瀝青存儲(chǔ)不應(yīng)超過22h,如果條件允許,應(yīng)盡快投入使用。再選用包括連續(xù)型密級(jí)配在內(nèi)的五種級(jí)配類型(AC-13C、 SMA-13、 AR-AC13、 AC-13F、 Superpave-13)橡膠改性瀝青混合料,從體積參數(shù)出發(fā),探討了橡膠改性瀝青混合料對(duì)級(jí)配的選擇性,驗(yàn)證了各級(jí)配混合料的路用性能,明確了橡膠改性瀝青路面使用AC-13C類密級(jí)配時(shí)同樣可以取得較好路用效果。最后根據(jù)不同級(jí)配混合料壓實(shí)特性的差異,對(duì)五種級(jí)配橡膠改性瀝青混合料的碾壓極限溫度進(jìn)行了研究,得知使用不同級(jí)配以及不同瀝青時(shí)對(duì)應(yīng)的極限溫度都存在差異,定量統(tǒng)計(jì)了各級(jí)配橡膠改性瀝青混合料的初始碾壓極限溫度,確定混合料的可碾壓性。再綜合各級(jí)配橡膠改性瀝青混合料的回彈性,明確指出攤鋪后初始碾壓應(yīng)選用靜載鋼輪壓路機(jī),并據(jù)此總結(jié)出橡膠改性瀝青路面的碾壓工藝,為路面施工控制提供參考。
[Abstract]:With the support of our government, used tire grinding powder as asphalt modifier is more and more used in road engineering, and its mixture can have good high temperature stability and low temperature crack resistance. Water stability and pavement resistance and wear resistance. Facing the increasing use of rubber modified asphalt pavement. In this paper, the performance decay of rubber modified asphalt after preparation and the problems of rubber modified asphalt mixture are studied and evaluated in order to solve the problem of rubber modified asphalt pavement construction. The storage of rubber modified asphalt and the rolling control of mixture. This paper summarizes and analyzes the domestic and foreign present situation of rubber powder road, determines the test and research scheme, and starts from the performance of rubber modified asphalt. At first, the index values of the properties of rubber modified asphalt prepared at different processing temperature were tested. Through the decay rule, the rubber modified asphalt is selected to process at 180 鈩，

本文編號(hào)：1457412