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增韧剂对环氧沥青性能的影响

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文中通过比对研究不同增韧剂对国产环氧沥青的拉伸强度、断裂伸长率、杨氏模量与容留时间等指标参数,分析适合国产环氧沥青的增韧剂品牌.研究不同增韧剂掺量的环氧沥青力学性能指标与容留时间指标差异,分析适宜的增韧剂掺量区间.结果表明:增韧剂可显著改善环氧沥青的脆性属性,提高容留时间指标,降低施工难度.增韧剂指标控制在5.3%~6.1%区间时,国产环氧沥青与日本TAF环氧沥青力学指标相近,性能基本满足路面铺装需求,特别在容留时间指标得到了显著改善,大幅度降低环氧沥青铺装的施工难度.
Effect of Toughening Agent on Properties of Epoxy Asphalt
By comparing and studying the tensile strength,elongation at break,Young's modulus and retention time of different toughening agents on domestic epoxy asphalt,the brand of toughening a-gent suitable for domestic epoxy asphalt was analyzed.The difference of mechanical properties and storage time of epoxy asphalt with different toughening agent content was studied,and the suitable toughening agent content interval was analyzed.The results show that the toughening agent can sig-nificantly improve the brittleness of epoxy asphalt,improve the retention time index and reduce the construction difficulty.When the index of toughening agent is controlled in the range of 5.3%~6.1%,the mechanical index of domestic epoxy asphalt is similar to that of Japanese TAF epoxy asphalt,and its performance basically meets the requirements of pavement.The retention time index has been significantly improved and the construction difficulty of epoxy asphalt pavement has been greatly re-duced.

toughening agentepoxy asphaltmechanical propertiesholding time

江胜文、詹文兵、罗传熙、黄志勇

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保利长大工程有限公司 广州 510000

长大市政工程(广东)有限公司 中山 528400

华南理工大学土木与交通学院 广州 510000

广州肖宁道路工程技术研究事务所有限公司 广州 510000

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增韧剂 环氧沥青 力学性能 容留时间

2024

武汉理工大学学报(交通科学与工程版)
武汉理工大学

武汉理工大学学报(交通科学与工程版)

CSTPCD
影响因子:0.462
ISSN:2095-3844
年,卷(期):2024.48(2)
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