基于中心复合设计法的油页岩废渣改良OGFC抗春融水损性能
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摘要
为了寻求一种可以大量消耗使用油页岩废渣的途径,将筛分后的油页岩废渣等比例替换开级配抗滑磨耗层(OGFC)中粒径在4.75mm以下的石料,并加以硅烷偶联剂辅助改性,制备出一种新型的OGFC沥青混合料(NM-OGFC)。通过春融稳定度试验,发现NM-OGFC具有良好的抗春融水损性能,相较基质OGFC沥青混料提高了41.6%。通过扫描电镜试验,发现NM-OGFC沥青混合料的的改良机理是由于油页岩复杂的微观构造、独特的层柱状连通构造和细胞状结构触角,可以实现与沥青更好的咬合,改变了沥青混合料的力学结构。基于中心复合设计(CCD)方法,寻找出了NM-OGFC沥青混合料抗春融水损性能最优的制备工艺。
In order to find a comprehensive was of utilizing oil shale waste,apreparation method of NM-OGFC.In this method,the aggregate with particle size below 4.75 mm is proportionally replaced by the sifted oil shale waste,in which the silane coupling agent plays an assistant role.Through spring-thawing stability test,it is found that NM-OGFC has good spring-thawing stability,which is41.6% higher than that of OGFC.By experiments it is found that the improved mechanism of NMOGFC is due to the complex microstructure of the oil shale,unique layer column connection structure tentacle,which can achieve better occlusion with asphalt,and change the mechanical structure of the asphalt mixture.Based on the central composite design(CCD)design method,the optimal preparation technology of NM-OGFC is found to improve the spring-thawing stability.
In order to find a comprehensive was of utilizing oil shale waste,apreparation method of NM-OGFC.In this method,the aggregate with particle size below 4.75 mm is proportionally replaced by the sifted oil shale waste,in which the silane coupling agent plays an assistant role.Through spring-thawing stability test,it is found that NM-OGFC has good spring-thawing stability,which is41.6% higher than that of OGFC.By experiments it is found that the improved mechanism of NMOGFC is due to the complex microstructure of the oil shale,unique layer column connection structure tentacle,which can achieve better occlusion with asphalt,and change the mechanical structure of the asphalt mixture.Based on the central composite design(CCD)design method,the optimal preparation technology of NM-OGFC is found to improve the spring-thawing stability.
引文
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[3]Subasinghe N D,Awaja F,Bhargava S K.Variation of kerogen content and mineralogy in some Australian tertiary oil shales[J].Fuel,2009,88:335-339.
[4]陈洁渝,严春杰,李子冲.油页岩渣的综合利用[J].矿产保护与利用,2006,6:41-45.Chen Jie-yu,Yan Chun-jie,Li Zi-chong.Comprehensive utilization of oil shale residue[J].Conservation and Utilization of Mineral Resources,2006,6:41-45.
[5]游君君,叶松青,刘招君.油页岩的综合开发与利用[J].世界地质,2004,23(3):261-265.You Jun-jun,Ye Song-qing,Liu Zhao-jun.Comprehensive development and utilization of oil shale[J].Word Geology,2004,23(3):261-256.
[6]常勇军,严焕荣.我国油页岩资源开发利用及建议[J].内蒙古石油化工,2009,35(12):80-81.Chang Yong-jun,Yan Huan-rong.Development and utilization of oil shale resources in China[J].Inner Mongolia Petrochemical Industry,2009,35(12):80-81.
[7]高桂梅.硅烷偶联剂对油页岩灰渣制备疏水性SiO2气凝胶介孔材料的影响[J].环境工程,2014,32:715-720.Gao Gui-mei.The effect of silane coupling agent on the method of preparing silica aerogels from oil shale ash[J].Environmental Engineering,2014,32:715-720.
[8]陈立军,黄旭光.利用油母页岩渣做水泥混合材的试验分析[J].吉林建筑工程学院学报,2001(1):19-22.Chen Li-jun,Huang Xu-guang.The test and analysis of cement mixtures with oil shale slag were used[J].Journal of Jilin Architectural and Civil Engineering Institute,2001(1):19-22.
[9]王盘成,吴国光,赵娜.油页岩灰作水泥混合材的研究等[J].硅酸盐通报,2009,28(3):580-584.Wang Pan-cheng,Wu Guo-guang,Zhao Na.Study of oil shale ash as cement admixture[J].Bulietin of the Chinese Ceramic Society,2009,28(3):580-584.
[10]晓菲.吉林利用当地资源发展新型墙材[J].建材工业信息,2002(7):34.Xiao Fei.Local resources to develop new wall materials in Jilin Province[J].Building Materials Industry Information,2002(7):34.
[11]杨淳,郑传峰.油页岩残渣改性沥青低温力学性能评价[J].路基工程,2017(5):106-109.Yang Chun,Zheng Chuan-feng.Performance evalution of low-temperature mechanical property of modified asphalt of residue oil shale[J].Subgrade Engineering,2017(5):106-109.