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| 有机化累托石改性沥青的制备及性能研究 | |
| 引用本文： | 陈繁华,吴少鹏,陶园园,王静,佟海波. 有机化累托石改性沥青的制备及性能研究[J]. 武汉理工大学学报, 2007, 29(9): 35-37 |
| 作者姓名： | 陈繁华 吴少鹏 陶园园 王静 佟海波 |
| 作者单位： | 1. 武汉理工大学材料科学与工程学院,武汉,430070;内蒙古通辽市交通局,通辽,028000 2. 武汉理工大学材料科学与工程学院,武汉,430070 3. 内蒙古通辽市交通工程局,通辽,028000 |
| 基金项目： | 交通部西部交通建设科技项目 |
| 摘 要： | 采用熔融插层法制备了有机化累托石(OREC)改性沥青,利用X射线衍射(XRD)表征了OREC改性沥青的微观结构,研究了OREC用量对改性沥青物理性能和粘度的影响,并通过薄膜烘箱(TFOT)和压力老化(PAV)对基质沥青和改性沥青老化性能进行了比较。结果表明:OREC可与沥青熔融插层形成剥离型纳米复合结构;OREC与沥青熔融共混后,沥青的软化点和粘度均增大;与普通沥青相比,经TFOT和PAV老化后,OREC改性沥青的软化点增量和粘度增加率显著减小,表明OREC可有效改善沥青耐老化性能。 |
| 关 键 词： | 累托石 改性沥青 老化 |
| 文章编号： | 1671-4431（2007）09-0035-03 |
| 修稿时间： | 2007-06-05 |
Preparation and Properties of Rectorite Modified Asphalt |
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| CHEN Fan-hua,WU Shao-peng,TAO Yuan-yuan,WANG Jing,TONG Hai-bo. Preparation and Properties of Rectorite Modified Asphalt[J]. Journal of Wuhan University of Technology, 2007, 29(9): 35-37 | |
| Authors: | CHEN Fan-hua WU Shao-peng TAO Yuan-yuan WANG Jing TONG Hai-bo |
| Affiliation: | 1. School of Materials Sdence and Engineering, Wuhan University of Technology, Wuhan 430070, China; 2. Tongliao Traffic Bureau of Inner Mongolia, Tongliao 028000, China; 3. Tongliao Transportation Engineering Bureau of Inner Mongolia, Tongliao 028000, China |
| Abstract: | Modified asphalts were prepared by melt intercalation with different contents of organo-modified rectorite(OREC).The microstructure of OREC modified asphalts was characterized by X-ray diffraction(XRD),showing that OREC modified asphalt form an exfoliated structure.Effects of OREC content on physical properties and viscosity of asphalt were investigated.The effects of OREC on the physical properties before and after thin film oven test(TFOT) and pressure ageing vessel(PAV) test,such as viscosity,and increment in softening point,were studied.The results showed that the softening point and viscosity were increased after the introduction of OREC.Compared to controlled asphalt,the increment in softening point and viscosity of OREC modified asphalt decreased significantly after TFOT and PAV,which proved that the addition of OREC can enhance the aging resistance of asphalts. |
| Keywords: | rectorite modified asphalt aging |
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