本文選題：鐵尾礦砂　切入點：體積法　出處：《大連理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：改革開放以來,我國經(jīng)濟實現(xiàn)了高速發(fā)展,礦產(chǎn)資源需求量不斷攀升,隨之帶來了尾礦的綜合利用問題。2013年出版的《重點冶金礦山統(tǒng)計年報》數(shù)據(jù)顯示,截止到2012年,我國鐵尾礦堆存量超過100億噸,僅2012年一年全國鐵礦排放的尾礦量就達到了9.4億噸,其中,遼寧省的鐵尾礦產(chǎn)量最高,占全國總量的30%。大量鐵尾礦的堆積帶來了環(huán)境污染和安全隱患,如果鐵尾礦能在公路建設(shè)中大規(guī)模的應(yīng)用,既可以減少道路工程中對砂礫的需求,又可以解決鐵尾礦的堆積問題,因此研究鐵尾礦在瀝青路面中的應(yīng)用具有重要的社會意義與經(jīng)濟價值。論文總結(jié)了鐵尾礦在國內(nèi)外綜合利用的現(xiàn)狀,分析比較了瀝青混合料的不同設(shè)計方法,在此基礎(chǔ)上,總結(jié)了鐵尾礦砂瀝青混合料的體積設(shè)計方法,并用該方法進行了鐵尾礦砂瀝青混合料的組成設(shè)計,研究了鐵尾礦砂瀝青混合料的路用性能并鋪筑了試驗路。實踐表明鐵尾礦砂瀝青混合料體積設(shè)計方法簡單易行,根據(jù)該方法設(shè)計的瀝青混合料能夠滿足低等級道路的路用性能,成功的將鐵尾礦砂應(yīng)用到瀝青混合料中,從而實現(xiàn)了鐵尾礦砂的再利用。
[Abstract]:Since the reform and opening up, China's economy has achieved rapid development and the demand for mineral resources has been rising, which has brought about the problem of comprehensive utilization of tailings. The data of the Statistical Annual report of key Metallurgical Mines, published in 2013, show that by 2012, The quantity of iron tailings in China exceeds 10 billion tons, and in 2012 alone, the amount of iron tailings discharged in China reached 940 million tons. Among them, Liaoning Province has the highest output of iron tailings. The accumulation of a large amount of iron tailings has brought environmental pollution and hidden dangers to safety. If iron tailings can be used on a large scale in highway construction, it can reduce the demand for sand gravel in road projects. Therefore, it is of great social and economic value to study the application of iron tailings in asphalt pavement. The present situation of comprehensive utilization of iron tailings at home and abroad is summarized in this paper. Based on the analysis and comparison of different design methods of asphalt mixture, the volume design method of iron tailings bituminous mixture is summarized, and the composition design of iron tailings bituminous mixture is carried out. The road performance of iron tailings bituminous mixture is studied and the experimental road is constructed. The practice shows that the volume design method of iron tailings bituminous mixture is simple and feasible, and the asphalt mixture designed by this method can meet the road performance of low grade road. The iron tailings are successfully applied to the asphalt mixture, and the reuse of the iron tailings is realized.
【學(xué)位授予單位】：大連理工大學(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：1602574