本文選題：道路材料 + tourmaline　； 參考：《功能材料》2014年11期

【摘要】：為解決夏季瀝青路面溫度過高問題,研發(fā)了tourmaline改性瀝青,制備了tourmaline改性瀝青混凝土。從試件制備、試驗儀器、測溫點及隔熱方式等方面確定了最合理的路面測溫試驗方法,在此基礎(chǔ)上,系統(tǒng)研究了外界溫度及tourmaline摻量和類型對tourmaline改性瀝青路面降溫性能的影響規(guī)律,并對tourmaline改性瀝青混凝土的降溫機理與路用性能進行了分析。結(jié)果表明,tourmaline可顯著降低瀝青路面的溫度;外界溫度越高,tourmaline對瀝青混凝土的降溫效果越好;隨tourmaline摻量的增加,tourmaline改性瀝青混凝土的降溫性能不斷提高,當(dāng)摻量超過17%時,其降溫性能變化不明顯;tourmaline負(fù)離子粉的降溫性能較tourmaline粉更佳,其降溫性能隨負(fù)離子釋放量的增大而提高,當(dāng)負(fù)離子釋放量超過5 000 ions時,tourmaline的降溫性能相差不大;tourmaline的添加能夠顯著改善瀝青混凝土的高溫性能、低溫性能及水穩(wěn)定性等路用性能。
[Abstract]:In order to solve the problem of excessive temperature of asphalt pavement in summer, tourmaline modified asphalt was developed and tourmaline modified asphalt concrete was prepared. The most reasonable road surface temperature measurement test method is determined from the aspects of sample preparation, test instrument, temperature measuring point and heat insulation method, etc. On this basis, The influence of external temperature, tourmaline content and type on the cooling performance of tourmaline modified asphalt pavement is systematically studied, and the cooling mechanism and road performance of tourmaline modified asphalt concrete are analyzed. The results show that tourmaline can significantly reduce the temperature of asphalt pavement, the higher the external temperature, the better the cooling effect of asphalt concrete, and the higher the content of tourmaline is, the better the cooling performance of tourmaline modified asphalt concrete is. The cooling performance of tourmaline anion powder is better than that of tourmaline powder, and the cooling performance increases with the increase of the amount of negative ion release. When the amount of negative ions released exceeds 5 000 ions, the cooling performance of tourmaline is similar. The addition of tourmaline can significantly improve the performance of asphalt concrete at high temperature, low temperature and water stability.
【作者單位】： 長安大學(xué)公路學(xué)院;石家莊市交通運輸局;河南盧陽高速公路有限公司;
【基金】：國家自然科學(xué)基金資助項目(51208045) 高等學(xué)校博士學(xué)科點專項科研基金資助項目(20110205120007) 中央高校基本科研業(yè)務(wù)費專項資金資助項目(CHD2010JC065,2014G2210002) 交通運輸部建設(shè)科技資助項目(201331849A270)
【分類號】：U414

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相關(guān)期刊論文 前10條

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本文編號：2096605