【摘要】：隨著我國瀝青混凝土路服務(wù)期的增長,越來越多的路面進(jìn)入大中修時期,維護(hù)、維修量不斷增加,很多廢舊銑刨料需要妥善處理,各種各樣的再生技術(shù)也應(yīng)用其中,新的技術(shù)及科研成果也在這一過程中不斷產(chǎn)生和得到利用。這其中就包括在我國應(yīng)用越來越廣泛的廠拌乳化瀝青冷再生技術(shù)。乳化瀝青再生混合料中既有廢舊路面材料,又有新材料的加入,新舊材料的組合使其具有新的性能特性。其中,路面材料的水穩(wěn)定性是工程界特別關(guān)心的問題,并且其影響因素較多,因素之間關(guān)系復(fù)雜。本文首先以與水損害所有關(guān)的瀝青混凝土路面病害種類和水損害發(fā)生的原因機(jī)理展開討論,簡要概括了國內(nèi)外學(xué)者對乳化瀝青冷再生混合料的相關(guān)研究近況。以廠拌乳化瀝青冷再生的技術(shù)特點(diǎn)為重點(diǎn),介紹了乳化瀝青冷再生混合料的常規(guī)使用范圍以及其技術(shù)自身的優(yōu)缺點(diǎn)。闡述了其路面使用性能和強(qiáng)度形成機(jī)理,并且對集料與乳化瀝青之間的粘結(jié)剝落原理進(jìn)行了分析,提出了主要因素與廠拌乳化瀝青冷再生水穩(wěn)定性相關(guān)。采用正交試驗(yàn)的方法減少試驗(yàn)數(shù)目,探索各個與乳化瀝青冷再生混合料水穩(wěn)定性有關(guān)的主要因素的顯著性大小和是否在各因素之間存在明顯的交互影響。試驗(yàn)設(shè)計為三因素三水平,表采用L27(313)正交表,按L27(313)交互用表設(shè)計表頭。選用的主要影響因素是水泥添加量、乳化瀝青用量、水的使用量,都以RAP用量為基礎(chǔ)作外比。緊密結(jié)合本文依托項目,考慮相關(guān)學(xué)者試驗(yàn)方法,確定各因素的水平變化范圍:水泥水平為1%、2%、3%,水用量為3%、4%、5%,乳化瀝青瀝青用量為2%、3%、4%。以浸水劈裂強(qiáng)度與劈裂強(qiáng)度比來表征抗水損害能力的大小。為了定量確定各影響因素的顯著水平大小和各個因素之間的交互作用強(qiáng)弱,使用SPSS19軟件進(jìn)行多因素方差分分析,并進(jìn)一步探討試驗(yàn)結(jié)果可能的原因,揭示各因素間潛在的非線性關(guān)系,討論產(chǎn)生這種關(guān)系的原因。以試驗(yàn)分析結(jié)果為基礎(chǔ),對混合料主要影響因素和交互作用做出論斷,以期望按照此論斷設(shè)計出的混合料在抵抗水損害方面有更出色的表現(xiàn)。
[Abstract]:With the increase of service period of asphalt concrete road in our country, more and more pavement has entered the period of large and medium repair, and the maintenance and maintenance quantity is increasing constantly. Many waste milling and planing materials need to be properly treated, and a variety of recycling technologies are also applied. New technologies and scientific research achievements have been produced and utilized in this process. This includes cold recycling technology of emulsified asphalt which is widely used in our country. Emulsified asphalt recycled mixture has both waste pavement materials and new materials. The combination of new and old materials makes it have new performance characteristics. Among them, the water stability of pavement materials is of special concern to the engineering field, and its influence factors are many, and the relationship between factors is complex. In this paper, the types of asphalt concrete pavement diseases related to water damage and the cause mechanism of water damage are discussed, and the recent researches on emulsified asphalt cold recycled mixture are briefly summarized. Focusing on the technical characteristics of cold recycling of emulsified asphalt, the conventional application range of cold recycled asphalt mixture and its own advantages and disadvantages are introduced. This paper expounds the pavement performance and strength formation mechanism, analyzes the principle of bond spalling between aggregate and emulsified asphalt, and points out that the main factors are related to the stability of cold reclaimed water of mixed emulsified asphalt. The orthogonal test method was used to reduce the number of tests and to explore the significance of the main factors related to the water stability of emulsified bitumen cold recycled mixture and whether there was obvious interaction between the factors. The design of the test is three factors and three levels. The table adopts the L27 (313) orthogonal table and the head is designed according to the L27 (313) interactive table. The main factors affecting the selection are cement content, emulsified asphalt content and water usage, all of which are based on the RAP content as the external ratio. Based on the project of this paper, considering the experimental methods of relevant scholars, the range of the level change of each factor is determined: the cement level is 1 and the level of the cement is 2%, and the quantity of water is 3% and 4%, and the amount of emulsified asphalt is 2% 3% and 4%. The ratio of splitting strength to splitting strength is used to characterize the ability of water damage resistance. In order to determine quantitatively the significant level of each factor and the interaction between each factor, the multivariate variance analysis was carried out with SPSS19 software, and the possible causes of the test results were discussed. Reveal the potential nonlinear relationships among factors and discuss the causes of such relationships. Based on the results of test and analysis, this paper makes a conclusion on the main factors and interaction of mixture, in order to expect that the mixture designed according to this conclusion will have better performance in resisting water damage.
【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

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本文編號：2234337