FIELD AND LABORATORY INVESTIGATION OF STRIPPING IN ASPHALT PAVEMENTS: STATE OF THE ART REPORT
FIELD AND LABORATORY INVESTIGATION OF STRIPPING IN ASPHALT PAVEMENTS: STATE OF THE ART REPORT
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DOI：
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发表时间：
1994
影响因子：
1.7
通讯作者：
P. Kandhal
中科院分区：
文献类型：
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作者：
P. Kandhal
近年来，热拌沥青混合料（HMA）路面的剥离似乎已成为一个主要问题。越来越多的国家规定使用抗剥落剂。有必要适当调查和查明这一问题，以便不只是根据对孤立的受灾地区的观察作出决定。外部因素和沥青混合料路面本身的特性会导致沥青混合料过早剥离。影响因素，如路面排水不足，不充分压实的HMA路面，过多的灰尘涂层集料，集料干燥不充分，混凝土路面上的覆盖层，进行了说明。为缓解与这些因素相关的问题的建议，并建议使用的调查方法，根据法医经验，指定机构和行业，希望建立剥离是否是一个问题，无论是在一个特定的项目或全州范围内。目前的做法，在美国各地使用的实验室潮湿敏感性测试和AASHTO T283（修改洛特曼）的测试方法，建议使用，直到更合适和可靠的测试开发和验证。
Stripping of hot mix asphalt (HMA) pavements appears to have become a major problem in recent years. More and more states are specifying the use of antistripping agents. There is a need to investigate and identify the problem properly so that decisions are not made solely on the basis of observation of isolated distress areas. External factors and in-place properties of HMA pavements can induce their premature stripping. Contributing factors, such as inadequate pavement drainage, inadequate compaction of HMA pavement, excessive dust coating on aggregate, inadequate drying of aggregate, and overlays on concrete pavements, are described. Suggestions for alleviating the problems associated with these factors are given, and an investigative methodology based on forensic experience is recommended for use by the specifying agencies and industry that want to establish whether stripping is a problem either on a specific project or statewide. Current practices of using laboratory moisture susceptibility tests across the United States are reviewed and the AASHTO T283 (Modified Lottman) test method is recommended for use until more suitable and reliable tests are developed and validated.