| 多应力蠕变恢复试验评价Sasobit改性沥青 |
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| 引用本文： | 丁海波,周刚. 多应力蠕变恢复试验评价Sasobit改性沥青[J]. 石油沥青, 2014, 0(3): 33-35 |
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| 作者姓名： | 丁海波 周刚 |
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| 作者单位： | [1]重庆交通大学,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400074 |
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| 基金项目： | 重庆市科技攻关计划项目（项目编号2012AC6202） |
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| 摘 要： | 介绍了采用Sasobit对50号沥青进行改性的试验结果。结果表明,采用Sasobit改性使50号基质沥青的复数模量(G~*)增加且使相位角(6)减少,因此,使用Sasobit改性增加了沥青路面抗永久变形的能力,同时使压实温度降为100℃。多应力蠕变恢复(MSCR)试验结果表明,Sasobit对沥青的蠕变柔量(J_(nr))和弹性恢复(R)产生影响,增加了沥青路面的弹性模量,同时有助于提高路面的耐久性。
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| 关 键 词： | 道路工程 Sasobit 流变特性 改性沥青 |
Evaluation on Sasobit Modified Asphalt by Multiple Stress Creep Recovery Test |
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| Ding Haibo,Zhou Gang. Evaluation on Sasobit Modified Asphalt by Multiple Stress Creep Recovery Test[J]. Petroleum Asphalt, 2014, 0(3): 33-35 |
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| Authors: | Ding Haibo Zhou Gang |
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| Affiliation: | 1. Chongqing Jiaotong Univercity, Chongqing 400074 ; 2. China Merchants Chongqing Communizations Research and Design Institute, Chongqing 400074) |
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| Abstract: | This paper introduced the test result of modified No. 50 asphalt by Sasobit. The results showed that modified No. 50 asphalt by Sasobit could make the complex modulus （ G＊ ） increase and the phase angle （δ） decrease, so using Sasobit modified asphalt increased capacity of resistance to permanent deformation, meanwhile made the compaction temperature drop to 100℃. Multi-stress Creep Recovery （MSCR） test re- suits showed that Sasobit had impact on creep compliance of the asphalt （Jnr） and elastic recovery （R） , in- creased the elasticity modulus of the asphalt pavement and improved the durability of the road surface . |
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| Keywords: | road engineering Sasobit rheological properties modified asphalt |
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