發(fā)布時(shí)間：2018-03-25 20:02

  本文選題：道路工程　切入點(diǎn)：青川巖瀝青　出處：《公路工程》2017年04期

【摘要】：國(guó)產(chǎn)青川巖瀝青可以作為改性劑制備改性瀝青。為著重研究青川巖改性瀝青的制備工藝,以中海70~#基質(zhì)瀝青為研究對(duì)象,研究不同摻量時(shí)青川巖改性瀝青性能的優(yōu)劣,確定其最佳摻量;并基于正交試驗(yàn)對(duì)最佳摻量下青川巖瀝青改性瀝青的制備工藝進(jìn)行優(yōu)化。試驗(yàn)結(jié)果表明:摻加7.5%青川巖瀝青制備的改性瀝青性能最佳,在其制備過(guò)程中應(yīng)著重考慮剪切時(shí)間的影響,控制發(fā)育溫度、發(fā)育時(shí)間、剪切溫度、剪切時(shí)間分別為160℃、60 min、180℃、60 min時(shí)可獲得綜合性能最佳的青川巖改性瀝青。
[Abstract]:Qingchuan bitumen made in China can be used as modifier to prepare modified asphalt. In order to study the preparation technology of Qingchuan rock modified asphalt, taking Zhonghai 70 # base asphalt as the research object, the performance of Qingchuan rock modified asphalt with different content is studied. Based on the orthogonal test, the preparation process of Qingchuan bitumen modified asphalt was optimized. The experimental results showed that the modified asphalt prepared by adding 7.5% Qingchuan rock asphalt had the best performance. In the process of preparation, the influence of shear time should be taken into account, and when the development temperature, development time, shear temperature and shear time are 160 鈩，

本文編號(hào)：1664639