本文選題：道路工程 + 瀝青混合料��； 參考：《吉林大學(xué)》2015年碩士論文

【摘要】：隨著經(jīng)濟(jì)的快速發(fā)展,交通流量日益增加,車(chē)輛軸載日益加重,路面的使用性能越來(lái)越受到關(guān)注。為提高路面的路用性能,延長(zhǎng)路面使用壽命,改性瀝青發(fā)揮著極其重要的作用,目前常用的多為以SBS為代表的聚合物改性劑。但研究表明,聚合物改性瀝青制備成本高,改性工藝復(fù)雜,與基質(zhì)瀝青融合較差,使用十分不便,從而限制了它的廣泛的應(yīng)用。產(chǎn)自印度尼西亞的布敦巖瀝青(Buton Rock Asphalt,BRA)作為一種不同于聚合物改性瀝青的天然巖瀝青改性劑,因其良好的路用性能、簡(jiǎn)便的加工工藝及合理的經(jīng)濟(jì)性開(kāi)始廣泛的出現(xiàn)在各路面工程中。針對(duì)這一問(wèn)題,本文通過(guò)對(duì)國(guó)內(nèi)外相關(guān)技術(shù)進(jìn)行調(diào)研和總結(jié),從布敦巖瀝青材料性質(zhì)、改性瀝青混合料性能、施工工藝及經(jīng)濟(jì)社會(huì)效益等方面進(jìn)行了研究。通過(guò)對(duì)布敦巖瀝青的性質(zhì)及瀝青組分的分析,在理論上保證布敦巖瀝青的路用性能。通過(guò)針入度、軟化點(diǎn)、延度及旋轉(zhuǎn)薄膜烘箱老化試驗(yàn),得到布敦巖瀝青的摻加對(duì)瀝青材料感溫性能、高溫性能、低溫性能和抗老化性能均有不同程度的改善,且性能提升程度與布敦巖瀝青的合理?yè)搅坑泻艽箨P(guān)系。但由于布敦巖瀝青中的礦物質(zhì)顆粒對(duì)試驗(yàn)結(jié)果造成不利影響,還需要進(jìn)一步參考布敦巖改性瀝青混合料的試驗(yàn)結(jié)果。并在此基礎(chǔ)上,選定布敦巖瀝青摻量為25%,開(kāi)展了布敦巖改性瀝青混合料的配合比設(shè)計(jì)。通過(guò)對(duì)不同摻量的布敦巖改性瀝青混合料路用性能研究的結(jié)果表明,摻入布敦巖瀝青后,瀝青混合料的各項(xiàng)指標(biāo)均滿足規(guī)范的相關(guān)要求,達(dá)到改性瀝青混合料的標(biāo)準(zhǔn),且其高溫穩(wěn)定性能、低溫抗裂性能以及抗水損害性能有不同程度的改善,并綜合得出布敦巖瀝青的最佳摻量為25%。對(duì)布敦巖改性瀝青混合料的施工工藝進(jìn)行了研究,著重分析了混合料的生產(chǎn)工藝、運(yùn)輸攤鋪及碾壓流程和相關(guān)注意事項(xiàng)。最后,對(duì)布敦巖改性瀝青混合料的經(jīng)濟(jì)性和社會(huì)效益進(jìn)行了分析,表明布敦巖瀝青能夠改善路面的使用性能,提高路面服務(wù)水平,且符合節(jié)能環(huán)保的要求,具有良好的社會(huì)經(jīng)濟(jì)效益和推廣應(yīng)用前景。
[Abstract]:With the rapid development of economy, the traffic flow is increasing day by day, the vehicle axle load is becoming more and more serious, and the pavement performance is paid more and more attention. In order to improve the pavement performance and prolong the pavement service life, modified asphalt plays an extremely important role. At present, most of the commonly used polymer modifiers are SBS. However, the study shows that polymer modified asphalt has high preparation cost, complex modification process, poor fusion with matrix asphalt, and is very inconvenient to use, which limits its wide application. Buton Rock AsphaltBRAs from Indonesia) as a natural rock asphalt modifier different from polymer modified asphalt, due to its good road performance, Simple processing technology and reasonable economy began to be widely used in pavement engineering. In view of this problem, through the investigation and summary of the related technology at home and abroad, this paper studies the properties of Budun rock asphalt material, the performance of modified asphalt mixture, the construction technology and the economic and social benefits. Based on the analysis of the properties and components of Budun bitumen, the road performance of Budun rock asphalt is guaranteed theoretically. Through the penetration, softening point, ductility and rotative film oven aging test, it is obtained that the addition of Budun rock asphalt has different degrees of improvement on the temperature sensing performance, high temperature performance, low temperature performance and aging resistance of the asphalt material. And the degree of performance improvement is related to the reasonable content of Budun bitumen. However, due to the adverse effect of mineral particles in Budun rock asphalt, further reference should be made to the test results of Budun rock modified asphalt mixture. On this basis, the mixture design of Budun rock modified asphalt mixture is carried out. The road performance of Budun rock modified asphalt mixture with different contents is studied. The results show that after adding Budun rock asphalt, each index of bituminous mixture meets the relevant requirements of the specification and reaches the standard of modified asphalt mixture. The properties of high temperature stability, low temperature crack resistance and water damage resistance are improved to some extent, and the optimum content of Budun rock asphalt is 25%. The construction technology of Budun rock modified asphalt mixture is studied, and the production process, transportation spreading and rolling process of the mixture are emphatically analyzed. Finally, the economic and social benefits of Budun rock modified asphalt mixture are analyzed. It is shown that Budun rock asphalt can improve pavement performance, improve pavement service level, and meet the requirements of energy saving and environmental protection. It has a good social and economic benefit and a prospect of popularization and application.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U414

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