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| 沥青路面裂缝密封胶的低温性能评价 | |
| 引用本文： | 李峰,黄颂昌,石小培. 沥青路面裂缝密封胶的低温性能评价[J]. 武汉理工大学学报, 2011, 0(8) |
| 作者姓名： | 李峰 黄颂昌 石小培 |
| 作者单位： | 交通运输部公路科学研究院; |
| 基金项目： | 国家自然科学基金(51008146) |
| 摘 要： | 为了评价沥青路面裂缝密封胶的低温性能,选择6种加热型密封胶和7种常温型密封胶,变化试验温度、拉伸速率、浸水等试验条件进行粘结试验。结果显示,3种加热型密封胶以及有机硅密封胶具有较好的低温性能。随着试验温度的降低,加热型密封胶的最大拉伸量显著减小,而常温型密封胶的感温性较小,特别是有机硅密封胶几乎不受温度影响。拉伸速率对加热型密封胶的影响较大,而有机硅密封胶接近于理想弹性体,受拉伸速率的影响很小。加热型密封胶的应力松弛能力优于有机硅密封胶,但抗浸水能力不如有机硅密封胶。 |
| 关 键 词： | 加热型密封胶 常温型密封胶 有机硅密封胶 粘结试验 低温性能 |
Low-temperature Performance Evaluation of Asphalt Pavement Crack Sealants |
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| LI Feng,HUANG Song-chang,SHI Xiao-pei. Low-temperature Performance Evaluation of Asphalt Pavement Crack Sealants[J]. Journal of Wuhan University of Technology, 2011, 0(8) | |
| Authors: | LI Feng HUANG Song-chang SHI Xiao-pei |
| Affiliation: | LI Feng,HUANG Song-chang,SHI Xiao-pei(Research Institute of Highway,Ministry of Transport,Beijing 100088,China) |
| Abstract: | In order to evaluate the low-temperature performance of asphalt pavement crack sealants,six hot-applied sealants and seven cold-applied sealants were tested with varied test conditions including temperature,extension rate and water-immersed.The bond test result shows three hot-applied sealants and the silicone sealants have good low-temperature performance.With the lower test temperature,the maximum extensions of the hot-applied sealants decline significantly while the cold-applied sealants are not affected... |
| Keywords: | hot-applied sealant cold-applied sealant silicone sealant bond test low-temperature performance |
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