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| Study on properties of rock asphalt |
| Chen Yuanyuan |
| CNOOC, Research Institute of Refining and Petrochemicals, Qingdao 266555, China |
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Abstract The basic property information of rock asphalt was obtained through the tests of asphalt properties, infrared spectrum, element analysis and solubility analysis. The characteristic of high softening point, an analysis method of using standard curve to deduce the softening point were established. The O-Si-O and carbonate carbonyl C=O in the rock asphalt were strengthened and closely related to the molecular force of asphalt. The arrangement structure of asphalt macromolecules was changed, which makes asphalt have stronger cohesion. The content of ring structure is more and the chain structure is less. The asphalt system have high stability due to the structural composition. The dissolution state shows that there are more inorganic minerals and some amorphous insoluble substances in rock asphalt, which can significantly improve the softening point of modified asphalt. The rock asphalt can be used as an excellent natural modifier to significantly improve the comprehensive properties of modified asphalt.
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| [ 1 ] 黄文通. 一种岩沥青复合改性剂及其制备方法与应用：CN，102690522A[ P ]. 2012 - 09 - 26.
[ 2 ] 朱 桃. 布敦岩沥青（BRA）改性沥青结合料使用性能研究[ D ]. 湖南大学，2014.
[ 3 ] 王 鹏. 抗凝冰沥青复合材料的研究[ D ]. 南昌航空大学，2015.
[ 4 ] GBT 4507-2014，沥青软化点测定法环球法[ S ].
[ 5 ] JTG E20-2011 T0606-2011，公路工程沥青及沥青混合料试验规程沥青软化点试验（环球法）[ S ].
[ 6 ] 张艳秋，许 超，杜亚平. 超高软化点沥青软化点测定方法
的探讨[ J ]. 燃料与化工，2019，50（ 5 ）：37 - 39.
[ 7 ] 查旭东，胡锦湘，刘安辉，等. 布敦岩沥青材料性质试验分析[ J ]. 长沙理工大学学报（自然科学版），2017，14（ 4 ）：10 - 17.
[ 8 ] 钟 科，曹东伟，刘清泉. 岩沥青改性沥青胶结料流变特性研究[ J ]. 公路交通科技，2007（ 7 ）：15 - 19.
[ 9 ] HARMELINK D S. Gilsonite, an asphalt modifier[ J ]. Cracking, 1992（ 332 ）：1 102 - 1 153.
[ 10 ] MOGHADDAM T B, SOLTANI M, KARIM M R.Evaluation of pe-
rmanent deformation characteristics of unmodified and polyethy-lene terephthalate modified asphalt mixtures using dynamic creep test[ J ]. Materials & Design, 2014, 53（ 1 ）： 317 - 324.
[ 11 ] 樊 亮，申全军，张燕燕. 天然岩沥青改性对沥青路面性能的影响[ J ]. 建筑材料学报，2007（ 6 ）：740 - 744.
[ 12 ] 樊 亮，张燕燕，申全军. 天然岩沥青对沥青流变性能的影响[ J ]. 中外公路，2007（ 2 ）：160 - 163. |
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