本文關(guān)鍵詞： 礦粉 高粘瀝青膠漿 流變性能 多應(yīng)力重復(fù)蠕變恢復(fù) 灰關(guān)聯(lián)分析　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】：瀝青路面的使用比較普遍,在我國(guó)已運(yùn)行的高等級(jí)路面中,瀝青路面占到近90%,而瀝青路面的使用性能與壽命主要取決于瀝青及其混合料的性能。因此,瀝青及其混合料成為道路建設(shè)行業(yè)關(guān)注的焦點(diǎn)。然而,礦粉-瀝青組成的膠漿體系對(duì)瀝青混合料的性能有著很大的影響。目前,對(duì)于瀝青膠漿的研究還不是很成熟,并且對(duì)于高粘瀝青膠漿的研究很少。本文在借鑒已有的相關(guān)研究成果之上,對(duì)基質(zhì)瀝青膠漿和高粘瀝青膠漿的流變性能進(jìn)行研究,目的在于探討兩種類型瀝青膠漿的區(qū)別、礦粉指標(biāo)對(duì)膠漿性能的影響等。首先用激光粒度分析儀等儀器對(duì)選用的5種礦粉的物理化學(xué)指標(biāo)進(jìn)行測(cè)定,得到了不同礦粉的密度、粒度分布、細(xì)度模數(shù)、比表面積等其他指標(biāo),并著重分析了礦粉粒度分布。結(jié)果顯示對(duì)于同樣0.075mm通過(guò)率的礦粉,其細(xì)部的連續(xù)性有差別,相比與礦粉的規(guī)范要求,用細(xì)度模數(shù)等粒度指標(biāo)能更準(zhǔn)確表征礦粉的細(xì)度。其次,通過(guò)研究?jī)煞N類型瀝青膠漿的流變特性,發(fā)現(xiàn)礦粉對(duì)瀝青膠漿具有明顯的模量增效行為,使得瀝青膠漿的高溫抗變形能力增強(qiáng),低溫抗裂性能變差,同時(shí)降低了瀝青膠漿的疲勞壽命。并且礦粉對(duì)瀝青膠漿的相位角影響很小,不同礦粉及粉膠比對(duì)瀝青膠漿流變性能的影響存在差別。基質(zhì)瀝青膠漿與高粘瀝青膠漿存在性能上的差異,試驗(yàn)結(jié)果表明高粘瀝青膠漿的高溫、低溫及疲勞性能要好于基質(zhì)瀝青膠漿。試驗(yàn)還發(fā)現(xiàn)通過(guò)多應(yīng)力重復(fù)蠕變恢復(fù)試驗(yàn)(MSCR)得到的不可恢復(fù)蠕變?nèi)崃坎頙nr-diff,可以用來(lái)判別基質(zhì)瀝青膠漿的最大粉膠比。通過(guò)分析粉膠比對(duì)瀝青膠漿流變性能的影響,確定了瀝青膠漿的合理粉膠比范圍�；诨疑P(guān)聯(lián)分析,研究了礦粉的不同物理化學(xué)指標(biāo)與瀝青膠漿高溫、低溫及疲勞性能之間的關(guān)聯(lián)性,并得到了礦粉對(duì)瀝青膠漿性能影響的關(guān)鍵指標(biāo),如密度、親水系數(shù)、P20、D10、比表面積及細(xì)度模數(shù)。最后,通過(guò)瀝青膠漿的黏附性試驗(yàn)與混合料凍融劈裂強(qiáng)度試驗(yàn)來(lái)評(píng)價(jià)瀝青混合料的水穩(wěn)性能,結(jié)果表明高粘瀝青及其膠漿的黏附性比基質(zhì)瀝青好的多,而高粘瀝青及其膠漿的黏附性不足以評(píng)價(jià)瀝青混合料的水穩(wěn)性能。高粘瀝青在混合料使用中存在著一個(gè)最佳粉膠比,超過(guò)此粉膠比,將對(duì)瀝青混合料的水穩(wěn)性能有影響。
[Abstract]:The use of asphalt pavement is relatively common. In the high grade pavement in our country, asphalt pavement accounts for nearly 90%, and the performance and life of asphalt pavement mainly depend on the performance of asphalt and its mixture. Asphalt and its mixture have become the focus of the road construction industry. However, the slurry system composed of mineral powder and asphalt has a great impact on the performance of asphalt mixture. The research on asphalt mortar is not very mature, and the research on high viscosity asphalt mortar is very few. The rheological properties of matrix asphalt mortar and high viscosity asphalt slurry were studied in order to explore the difference between the two types of asphalt mortar. First, the physical and chemical indexes of five kinds of mineral powder were measured by laser particle size analyzer, and the density, particle size distribution and fineness modulus of different ore powder were obtained. The results show that for the same 0.075mm pass rate, the continuity of the fine parts is different, compared with the specification requirements of the ore powder. Particle size index such as fineness modulus can be used to characterize the fineness of ore powder more accurately. Secondly, by studying the rheological characteristics of two types of asphalt mortar, it is found that ore powder has obvious modulus-synergistic behavior to asphalt mortar. The high temperature deformation resistance and low temperature crack resistance of asphalt mortar are enhanced, and the fatigue life of asphalt mortar is reduced, and the effect of mineral powder on the phase angle of asphalt mortar is very small. The effect of different mineral powder and ratio of powder to glue on rheological properties of asphalt slurry is different. The difference of the existence performance of matrix asphalt slurry and high viscosity asphalt slurry is also discussed. The test results show that the high temperature of high viscosity asphalt slurry is obtained. The low temperature and fatigue properties are better than that of the matrix asphalt mortar. It is also found that the unrecoverable creep compliance difference (Jnr-diff) obtained from the multi-stress repeated creep recovery test (MSCR) is better than that of the matrix asphalt mortar. It can be used to judge the maximum powder / binder ratio of base asphalt mortar. By analyzing the influence of the ratio of powder to glue on the rheological properties of asphalt mortar, the reasonable range of powder / binder ratio of asphalt mortar is determined, based on grey correlation analysis. The relationship between the different physical and chemical indexes of mineral powder and the high temperature, low temperature and fatigue properties of asphalt slurry was studied. The key indexes of the influence of mineral powder on the properties of asphalt mortar, such as density, hydrophilic coefficient, P20, were obtained. D10, specific surface area and fineness modulus. Finally, the stability of asphalt mixture was evaluated by the adhesion test of asphalt mortar and the test of freeze-thaw splitting strength of asphalt mixture. The results show that the adhesion of high viscosity asphalt and its mortar is much better than that of base asphalt. However, the adhesion of high viscosity asphalt and its mortar is not enough to evaluate the water stability of asphalt mixture. There is an optimum powder / binder ratio in the use of high viscosity asphalt, which exceeds the powder / binder ratio. It will affect the water stability of asphalt mixture.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U414

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 劉紅瑛;瀝青膜厚對(duì)瀝青混合料工程性能的影響[J];公路交通技術(shù);2004年03期

相關(guān)博士學(xué)位論文 前1條

1 陳志國(guó);火山灰瀝青膠漿路用性能的研究[D];哈爾濱工業(yè)大學(xué);2010年

相關(guān)碩士學(xué)位論文 前1條

1 劉全濤;瀝青膠漿的疲勞性能研究[D];武漢理工大學(xué);2008年

，

本文編號(hào)：1474183