Laboratory evaluation of short and long term performance of hot-poured sealants
Laboratory evaluation of short and long term performance of hot-poured sealants
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热浇密封胶短期和长期性能的实验室评估
DOI：
10.1016/j.conbuildmat.2017.05.014
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发表时间：
2017-09-01
影响因子：
7.4
通讯作者：
Li, Li
中科院分区：
文献类型：
--
作者：
Li, Feng;Zhou, Siqi;Li, Li
热浇封胶通常用于修补沥青路面上的裂缝。然而，现有的性能评价方法并不能完全反映热灌封胶的性能。因此，本文提出了不同的测试，包装膜的熔点和熔体流动指数，密封胶的粘度，离析，热老化性能，和水浸后的结合，有针对性地解决发现的问题，并评估热浇注密封胶的短期和长期性能。通过对9种密封胶的性能测试，提出了密封胶性能分级体系。该体系对电流性能评价、安装性能、热稳定性和浸泡稳定性等指标进行了加权。对不同的测试结果进行分类和评分，然后对9种密封剂进行定量排名。该系统提供了一个更全面的评价现场性能的热灌密封剂相比，现有的性能评价方法，并正确的排名密封剂在其实际性能。因此，建议的测试可以用来补充目前的性能评价指标。(C)2017爱思唯尔有限公司版权所有
Hot-poured sealants are commonly applied to repair cracks on asphalt pavements. However, existing methods of performance evaluation do not fully reflect the performance of hot-poured sealant for pavement application. Therefore, this article proposes different tests, melting point and melt flow index of packing films, sealant viscosity, segregation, thermal aging performance, and bond after water immersion, to specifically address identified problems and evaluate the short and long term performance of hot-poured sealant. A sealant performance ranking system was proposed based on the tests of nine sealants. The indicators of current performance evaluation, installation performance as well as thermal and immersion stability were weighted in this system. Different test results were classified and scored and then nine sealants were ranked quantitatively. The proposed system provides a more comprehensive evaluation of field performance of hot-poured sealant compared to existing performance evaluation methods, and correctly ranks the sealants in terms of their practical performance. Therefore, the proposed tests can be employed to complement current performance evaluation indicators. (C) 2017 Elsevier Ltd. All rights reserved.