本文關(guān)鍵詞： CRP改性劑 改性瀝青混合料 SMA-13混合料 路用性能 干摻工藝　出處：《重慶交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著我國高等級公路的瀝青路面建設(shè)持續(xù)發(fā)展,對瀝青的質(zhì)量提出了更高的要求,改性瀝青正廣泛地應(yīng)用于高速公路及低等級公路建設(shè),研制和生產(chǎn)改性瀝青,提高瀝青路面的使用性能和耐久性,已成我國目前公路建設(shè)的重要課題之一。瀝青馬蹄脂混合料(SMA)是近些年來國際上一種非常引人注目的新型瀝青混合料,其抗車轍性能和抗滑性優(yōu)異,逐漸在高速公路、城市快速路、機(jī)場跑道等路面上廣泛應(yīng)用。針對目前的SMA混合料,較為成熟的是使用SBS改性瀝青,而CRP改性劑是重慶交通大學(xué)研制出的一種新型瀝青改性劑,并作為國內(nèi)的專利技術(shù),成功解決了塑料改性瀝青離析嚴(yán)重、存儲穩(wěn)定性差等問題,并與瀝青的相容性優(yōu)異。本文結(jié)合目前瀝青路面的病害形式,通過大量室內(nèi)試驗(yàn)研究,對CRP改性瀝青及其改性混合料進(jìn)行深入的研究、分析,并對其改性AC-13及SMA-13混合料做了實(shí)際研究,重點(diǎn)研究了其應(yīng)用于SMA混合料的高溫、低溫、水穩(wěn)定性能。主要研究內(nèi)容及成果如下:①通過實(shí)驗(yàn)室內(nèi)高速剪切乳化工藝,分別制得不同摻量的CRP改性瀝青及SBS改性瀝青,對改性瀝青的性能指標(biāo)進(jìn)行測試,并提出CRP改性劑的最佳摻量為5.5%。②選擇經(jīng)工程實(shí)踐論證的瀝青混合料級配(貴清高速AC-13、柳南高速SMA-13級配),分別進(jìn)行CRP與SBS改性瀝青混合料的配合比設(shè)計(jì),并通過試驗(yàn)對比分析CRP與SBS改性瀝青混合料的高溫、低溫、水穩(wěn)定性能,表明CRP改性劑應(yīng)用于AC-13、SMA-13混合料路用性能良好。③結(jié)合貴陽某拌和站集料,進(jìn)行CRP改性該SMA-13混合料配合比設(shè)計(jì),測試其混合料各項(xiàng)路用性能。進(jìn)一步表明CRP使用于不同級配、不同集料的SMA混合料,都能使其路用性能滿足要求。④CRP干法生產(chǎn)SMA-13混合料的施工工藝簡便且混合料路用性能良好。CRP改性劑不僅能改變?yōu)r青路面的路用性能、延長其使用壽命、降低工程造價(jià)。同時(shí)CRP(生活廢舊塑料)改性劑為資源資源的回收、環(huán)境保護(hù)提供了良好的途徑,因此具有廣闊的市場前景。
[Abstract]:With the continuous development of asphalt pavement construction of high grade highway in our country, the quality of asphalt is required higher. Modified asphalt is widely used in highway and low grade highway construction, and the modified asphalt is being developed and produced. Improving the performance and durability of asphalt pavement has become one of the most important topics in highway construction in our country. Asphalt horseshoe asphalt mixture (SMA) is a new type of asphalt mixture which has attracted much attention in the world in recent years. It has excellent rutting resistance and skid resistance and has been widely used on highways, urban expressways, airport runways and other pavements. In view of the current SMA mixture, it is more mature to use SBS modified asphalt, CRP modifier is a new asphalt modifier developed by Chongqing Jiaotong University. As a patent technology in China, it has successfully solved the problems of serious segregation and poor storage stability of plastic modified asphalt. In this paper, the CRP modified asphalt and its modified mixture are deeply studied and analyzed through a large number of laboratory experiments combined with the current asphalt pavement disease form. The performance of high temperature, low temperature and water stability of modified AC-13 and SMA-13 mixtures are studied in detail. The main research contents and results are as follows: 1. Through the high speed shear emulsification process in laboratory, the main research contents and results are as follows: 1. CRP modified asphalt and SBS modified asphalt with different contents were prepared, and the performance indexes of modified asphalt were tested. The optimum content of CRP modifier is 5.52.The asphalt mixture gradation (Guiqing High Speed AC-13, Liunan High Speed SMA-13 gradation), which is proved by engineering practice, is chosen to design the mix ratio of CRP and SBS modified asphalt mixture, respectively. The high temperature, low temperature and water stability of CRP and SBS modified asphalt mixture are compared and analyzed. The results show that CRP modifier is applied to AC-13 SMA-13 mixture with good road performance. 3 combined with the aggregate of a mixing plant in Guiyang. The mix ratio design of the SMA-13 mixture modified by CRP is carried out, and the road performance of the mixture is tested. It is further shown that CRP is used in the SMA mixture with different gradation and different aggregates. Both of them can make the pavement performance meet the requirement. 4CRP dry method can produce SMA-13 mixture with simple construction technology and good pavement performance. The modifier can not only change the pavement performance of asphalt pavement, but also prolong its service life. At the same time CRP (Life waste Plastics) modifier provides a good way for the recovery of resources and environmental protection, so it has a broad market prospect.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U414

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 王曉初,朱浮生,王奕鵬;SBS改性瀝青性能的試驗(yàn)研究[J];東北大學(xué)學(xué)報(bào);2004年12期

2 任淑霞;;用廢塑料薄膜作瀝青改性材料的試驗(yàn)研究[J];混凝土;2006年02期

3 李軍;張玉霞;張玉貞;;甲基丙烯酸縮水甘油酯接枝低密度聚乙烯瀝青改性劑改性機(jī)理研究[J];煉油技術(shù)與工程;2007年08期

4 董夫強(qiáng);張玉貞;辛雪;范維玉;南國枝;;復(fù)合改性硬質(zhì)瀝青的制備及微觀結(jié)構(gòu)[J];中國石油大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年04期

5 張宜洛;鄭南翔;;瀝青混合料的基本參數(shù)對其高低溫性能的影響[J];長安大學(xué)學(xué)報(bào)(自然科學(xué)版);2006年04期

6 許世展;孫建波;田亞林;蘇凱;;PE改性瀝青理論分析及其試驗(yàn)研究[J];西部探礦工程;2006年06期

7 朱夢良,張起森;SBS改性瀝青及SMA混合料的應(yīng)用研究[J];中國公路學(xué)報(bào);2001年01期

8 楊在強(qiáng);;影響SBS改性瀝青產(chǎn)品質(zhì)量的幾個(gè)因素[J];科技創(chuàng)新導(dǎo)報(bào);2009年03期

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