本文選題：水泥混凝土橋面 + 瀝青混合料鋪裝��； 參考：《長安大學(xué)》2017年碩士論文

【摘要】：鋪裝瀝青混合料與橋面混凝土在性能上存在較大差異,易導(dǎo)致瀝青鋪裝層產(chǎn)生早期損壞,這不僅妨礙了車輛公路交通運輸安全,還會造成巨大的經(jīng)濟(jì)損失。論文依托S221渭河大橋,開展水泥混凝土橋面瀝青鋪裝技術(shù)研究具有重要的實用價值和現(xiàn)實意義。論文分析了水泥混凝土橋面瀝青鋪裝層間病害形式和成因,主要病害形式有瀝青鋪裝層推移、脫落、車轍和擁包、裂縫等,車輛荷載大、黏結(jié)層材料強(qiáng)度低性能差、高溫的影響、水的作用和施工質(zhì)量控制不嚴(yán)等是引起水泥混凝土橋面瀝青鋪裝層間病害的主要原因。對AC-16改性瀝青混合料和AC-20瀝青混合料配合比進(jìn)行了優(yōu)化設(shè)計,性能試驗結(jié)果表明,設(shè)計的瀝青混合料具有優(yōu)良的路用性能,其中動穩(wěn)定度分別為5263次/min和3666次/min。采用剪切試驗,研究了不同法向力、不同配方、不同灑布量和不同溫度條件下的水性環(huán)氧乳化瀝青黏結(jié)層的抗剪強(qiáng)度,確定了不同溫度條件下的抗剪強(qiáng)度指標(biāo)c和φ值;采用拉拔試驗,研究了不同配方、不同灑布量和不同溫度條件下的水性環(huán)氧乳化瀝青黏結(jié)層的抗拔強(qiáng)度。由此確定了水性環(huán)氧乳化瀝青黏結(jié)層的最佳灑布量和最佳配方,其中最佳配方為Ⅱ組,即A(環(huán)氧樹脂):B(固化劑):C(乳化瀝青)=16:4:80,最佳灑布量為0.6kg/m2。研究提出了水泥混凝土橋面瀝青鋪裝施工技術(shù)。通過本文的研究以期水泥混凝土橋面瀝青鋪裝技術(shù)水平的提高,改善橋面鋪裝結(jié)構(gòu)的使用性能,防止早期病害,延長使用壽命。
[Abstract]:There is a great difference between pavement asphalt mixture and bridge deck concrete in performance, which can easily lead to early damage of asphalt pavement, which not only hinders the safety of vehicle traffic and transportation, but also causes huge economic losses. It is of great practical value and practical significance to study asphalt pavement technology of cement concrete bridge deck based on S 221 Weihe River Bridge. The paper analyzes the form and cause of asphalt pavement disease on cement concrete bridge deck. The main disease forms are asphalt pavement, shedding, rutting and packing, cracks, high vehicle load, low strength of adhesive layer, and so on. The influence of high temperature, the action of water and the lax control of construction quality are the main causes of asphalt pavement diseases on cement concrete bridge deck. The mixture ratio of AC-16 modified asphalt mixture and AC-20 asphalt mixture is optimized. The performance test results show that the designed asphalt mixture has excellent pavement performance, in which the dynamic stability is 5263 / min and 3666 / min respectively. The shear strength of waterborne epoxy emulsified asphalt adhesive layer under different normal forces, different formulations, different sprinkling amount and different temperature was studied by shear test, and the shear strength indexes c and 蠁 were determined under different temperature conditions. The pull-out strength of waterborne epoxy emulsified asphalt adhesive layer with different formulation, different distribution amount and different temperature was studied by drawing test. Thus, the optimum distribution and formulation of waterborne epoxy emulsified asphalt adhesive layer are determined. The optimum formula is group 鈪，

本文編號：2115732