【摘要】：廢舊橡膠是高分子化學(xué)材料，焚燒產(chǎn)生的有毒有害物質(zhì)不僅會(huì)污染環(huán)境，還會(huì)危害人們的身體健康，而堆放和填埋如此龐大數(shù)量的廢棄橡膠不僅會(huì)占用和浪費(fèi)大量的土地資源，而且還會(huì)破壞周圍的生態(tài)環(huán)境，，影響植被的生長(zhǎng)，造成嚴(yán)重的惡性循環(huán)。因此，將這些廢舊輪胎加工成橡膠粉并用于改性瀝青道路施工中去，不僅減少?gòu)U棄物的產(chǎn)生，實(shí)現(xiàn)資源的有效循環(huán)利用，而且還可以降低大量廢舊輪胎帶來的嚴(yán)峻的環(huán)境和安全影響。同時(shí)，橡膠瀝青本身所具備優(yōu)良的路用性能在城市道路舊路改造中可以得到很好的利用。因此，本文在不同目數(shù)和不同摻量的橡膠粉的基礎(chǔ)上，研究橡膠瀝青性能指標(biāo)、橡膠瀝青最佳油石比確定及橡膠瀝青混合料的高溫穩(wěn)定性和水穩(wěn)定性，并將研究成果應(yīng)用到橡膠瀝青在城市道路改造過程中的施工技術(shù)和質(zhì)量控制中。 本文根據(jù)國(guó)內(nèi)外研究的成果，以不同目數(shù)和摻量的橡膠粉制備得到的12種橡膠瀝青，按照規(guī)范要求的試驗(yàn)方法進(jìn)行瀝青性能試驗(yàn)，分析不同目數(shù)和不同摻量膠粉制備的橡膠粉改性瀝青性能方面變化規(guī)律。然后選擇兩種有粗細(xì)差別的SMA-13級(jí)配曲線作對(duì)比，按照選定的級(jí)配曲線，以12種不同目數(shù)和摻量的橡膠瀝青為原材料拌制混合料，按照馬歇爾試驗(yàn)方法確定24種類型混合料的最佳油石比，分析級(jí)配曲線粗細(xì)對(duì)橡膠瀝青混合料配合比的影響。再次，對(duì)確定的24種類型混合料按照最佳油石比成型試件，研究橡膠粉不同目數(shù)和不同摻量對(duì)橡膠粉改性瀝青混合料車轍及抗水損害路用性能的影響。研究結(jié)果表明，橡膠瀝青SMA具有良好的高溫穩(wěn)定性、低溫抗裂性及疲勞特性，但水穩(wěn)定性略低。最后結(jié)合福州市五四路道路改造工程，對(duì)橡膠瀝青混凝土的施工工藝和質(zhì)量控制進(jìn)行探索。
[Abstract]:Waste rubber is a high molecular chemical material. The toxic and harmful substances produced by incineration will not only pollute the environment, but also endanger people's health. Stacking and landfill of such a large amount of waste rubber will not only occupy and waste a large number of land resources, And it will destroy the surrounding ecological environment, affect the growth of vegetation, causing a serious vicious circle. Therefore, processing these waste tires into rubber powder and using them in the construction of modified asphalt roads will not only reduce the generation of waste, but also realize the effective recycling of resources. It can also reduce the severe environmental and safety impact caused by a large number of waste tyres. At the same time, the rubber asphalt itself has the excellent road performance in the city road old road reconstruction can be very good use. Therefore, on the basis of rubber powder with different mesh number and different amount of rubber powder, the performance index of rubber asphalt, the determination of the best ratio of rubber asphalt to asphalt and the high temperature stability and water stability of rubber asphalt mixture are studied in this paper. The research results are applied to the construction technology and quality control of rubber asphalt in the process of urban road reconstruction. According to the research results at home and abroad, 12 kinds of rubber asphalts were prepared from rubber powder with different mesh number and content, and the asphalt performance tests were carried out according to the test methods required by the specifications. The properties of rubber powder modified asphalt prepared with different mesh number and different amount of rubber powder were analyzed. Then two kinds of SMA-13 gradation curves with different thickness are selected as contrast. According to the selected gradation curve, 12 kinds of rubber asphalt with different mesh number and content are used as raw materials to mix the mixture. According to the Marshall test method, the optimum asphalt ratio of 24 kinds of mixtures was determined, and the influence of the gradation curve thickness on the mixture ratio of rubber asphalt mixture was analyzed. Thirdly, the effects of rubber powder number and content on rutting and road performance of asphalt mixture modified by rubber powder were studied. The results show that the rubber asphalt SMA has good high temperature stability, low temperature crack resistance and fatigue property, but the water stability is slightly lower. Finally, the construction technology and quality control of rubber asphalt concrete are explored in combination with the reconstruction project of the 4th Route Road in Fuzhou.
【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】：2014
【分類號(hào)】：U414

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本文編號(hào)：2161551