[1]肖庆一,钱春香,解建光.偶联剂改善沥青混凝土性能及油石界面试验研究[J].东南大学学报(自然科学版),2004,34(4):485-489.[doi:10.3969/j.issn.1001-0505.2004.04.014]
 Xiao Qingyi,Qian Chunxiang,Xie Jianguang.Experimental research on modification of asphalt concrete performance and asphalt-aggregate interface by coupling agent[J].Journal of Southeast University (Natural Science Edition),2004,34(4):485-489.[doi:10.3969/j.issn.1001-0505.2004.04.014]
点击复制

偶联剂改善沥青混凝土性能及油石界面试验研究()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第4期
页码:
485-489
栏目:
交通运输工程
出版日期:
2004-07-20

文章信息/Info

Title:
Experimental research on modification of asphalt concrete performance and asphalt-aggregate interface by coupling agent
作者:
肖庆一 钱春香 解建光
东南大学材料科学与工程系, 南京 210096
Author(s):
Xiao Qingyi Qian Chunxiang Xie Jianguang
Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
偶联剂 油石界面 沥青混凝土 花岗岩 玄武岩
Keywords:
coupling agent asphalt-aggregate interface asphalt concrete granite basalt
分类号:
U414
DOI:
10.3969/j.issn.1001-0505.2004.04.014
摘要:
试验探讨了偶联剂作为油石界面改性剂对沥青混凝土性能改善的可能性.试验发现,偶联剂无论对酸性花岗岩石料还是中性玄武岩石料的沥青混凝土性能都具有明显的改善作用.添加偶联剂的沥青,对石料的黏附等级达到5级,而改性前的沥青与花岗岩和玄武岩的黏附等级仅为2级和3级; 马歇尔稳定度比基质沥青混凝土提高10%~20%,马歇尔模数提高约6%,残留马歇尔稳定度提高18%~28%,3次冻融循环后的劈裂强度比相对于基质沥青混凝土提高25%~33%.红外光谱分析证实,偶联剂在花岗岩和玄武岩石料表面均形成一层偶联层.消耗石料表面残留水分、形成偶联化层和提高沥青在石料表面的润湿速度是硅烷偶联剂改善油石界面的根本原因.
Abstract:
Asphalt-aggregate interface is one of the crucial factors in asphalt concrete. A coupling agent applied as a modifier for asphalt-aggregate interface is investigated in this paper. Experiments prove that the coupling agent can effectively improve the performances of asphalt concrete, no matter whether the aggregate is acidic granite or neutral basalt. The cohesiveness between asphalt and granite or basalt can achieve grade 5. In contrast, it is only grade 2 and 3 if the asphalt is not modified by the coupling agent. Marshall stability, Marshall modules and residual Marshall stability of asphalt concrete is increased by 10%-20%, about 6% and 18%-28% respectively. The retained tensile strength ratio after three freezing and thawing cycles can be increased by 25%-33%. Infrared spectrograph analysis shows that the coupling agent reacts with the surface of aggregates. The improvement of the modified asphalt-aggregate interface is mainly due to the depletion of retained water in pores of aggregate, formation of coupling layer and speeding-up of asphalt soakage by the coupling agent.

参考文献/References:

[1] Curtis Christine W,Ensley Keith,Epps Jon.Fundamental properties of asphalt-aggregate interactions including adhesion and absorption [R].Washington DC,SHRP-A-341,National Research Council,1993.
[2] Demjén Zoltán, Pukánszky Béla,Földes Enikö,et al.Evaluation of interfacial interaction in polypropylene/surface treated CaCO3 composites [J].Composites Part A:Applied Science and Manufacturing, 1998,29(3):323-329.
[3] 沈金安,李福普.JTJ052—2000.公路工程沥青及沥青混合料试验规程 [S].北京:人民交通出版社,2000.
[4] 陈先华,黄卫,李洪涛.钢桥面浇注式沥青混合料铺装的高温稳定性研究 [J].重庆交通学院学报,2003,22(1):32-35.
  Chen Xianhua,Huang Wei,Li Hongtao.Studies on high temperature stability of guss-asphalt used for steel deck paving [J].Journal of Chongqing Jiaotong University, 2003,22(1):32-35.(in Chinese)
[5] 许涛,黄晓明.沥青混合料水损害性评价方法研究 [J].公路,2003(8):13-17.
  Xu Tao,Huang Xiaoming.Research on evaluation method for water damages [J].Highway, 2003(8):13-17.(in Chinese)
[6] 胡福增,陈国荣,杜永娟.材料表界面 [M].上海:华东理工大学出版社,2001.172-180.
[7] 严家及.道路建筑材料.第3版 [M].北京:人民交通出版社,1996.13-15.
[8] Demjén Zoltán, Pukánszky Béla,Földes Enikö,et al.Possible coupling reactions of functional silanes and polypropylene[J].Polymer, 1999,4(7):1763-1773.
[9] 贾建业,汤艳杰,王辅亚,等.活性白云粉生产工艺及其物化性能研究 [J].矿物学报,2001,21(3):439-442.
  Jia Jianye,Tang Yanjie,Wang Fuya,et al.Technology for producing active baiyun powder(ABP)and study on its physical chemical performance [J]. Acta Mineralogica Sinica,2001,21(3):439-442.(in Chinese)
[10] Lee Nam-Jeong,Jang Jyongsik.The use of a mixed coupling agent system to improve the performance of polypropylene-base composites reinforced with short-glass-fibre mat [J].Composites Science and Technology, 1998,57(12):1559-1569.

备注/Memo

备注/Memo:
基金项目: 江苏省建设厅科技计划资助项目(JS200334)、江苏省无机及其复合新材料重点试验室开放基金资助项目.
作者简介: 肖庆一(1979—),男,硕士生; 钱春香(联系人),女,博士,教授,博士生导师,cxqian@seu.edu.cn.
更新日期/Last Update: 2004-07-20