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首页> 外文期刊>Construction and Building Materials >An evaluation of the suitability of SUPERPAVE and Marshall asphalt mix designs as they relate to Thailand's climatic conditions
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An evaluation of the suitability of SUPERPAVE and Marshall asphalt mix designs as they relate to Thailand's climatic conditions

机译：对SUPERPAVE和Marshall沥青混合料设计与泰国气候条件有关的适用性进行评估

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摘要

The most commonly-used asphalt mix design in Thailand still relies on the Marshall Mix design procedure which is empirical in its nature, in the sense that it is based on data produced by experiment and observation rather than reliable "in-field" data. As a result of this, the Marshall Mix design procedure has substantial drawbacks with respect to replicating the real or actual behaviour of asphalt during construction and in actual in-service conditions. The Strategic Highway Research Program (SHRP) has developed the Superior Performance Asphalt Pavements (SUPERPAVE) mix design procedure, which shifts to a large degree away from the empiricism of the Marshall Mix design to provide a more reliable and responsive solution to actual pavement conditions. This study aims to evaluate whether the SUPERPAVE mix design procedure can be reliably implemented under Thailand pavement conditions. A map of the Performance Grade (PG) asphalt binders was generated to cover the study area, namely the North part of Thailand, according to the SUPERPAVE asphalt classification with the highest and lowest temperature ranges that the asphalt might be subjected to. Using local materials, and considering loading and environmental conditions, a comparative study of the performance of two mixes, designed using SUPERPAVE and Marshall Mix design procedures, was carried out. The SUPERPAVE mixes proved superior to the Marshall Mixes. However, the asphalt binder commonly used in Thailand is not suitable for Thailand pavement conditions, based on the PG grade asphalt classification system.
机译：在泰国，最常用的沥青混合料设计仍然依赖于马歇尔混合料设计程序，该程序本质上是经验性的，因为它基于实验和观察产生的数据，而不是可靠的“现场”数据。结果，关于在施工期间和实际使用条件下复制沥青的真实或实际行为，Marshall混合料设计程序存在重大缺陷。战略公路研究计划（SHRP）已开发了卓越性能沥青路面（SUPERPAVE）混合料设计程序，该程序在很大程度上偏离了马歇尔混合料设计的经验，从而为实际路面状况提供了更可靠和响应迅速的解决方案。这项研究旨在评估SUPERPAVE混合料设计程序是否可以在泰国路面条件下可靠地实施。根据SUPERPAVE沥青分类，生成了性能等级（PG）沥青粘合剂的地图，覆盖了研究区域，即泰国北部，其中沥青可能经受的最高和最低温度范围。使用本地材料，并考虑到载荷和环境条件，使用SUPERPAVE和Marshall Mix设计程序设计了两种混合料的性能比较研究。事实证明，SUPERPAVE混合物优于马歇尔混合物。但是，基于PG级沥青分类系统，泰国常用的沥青粘合剂不适用于泰国的路面条件。

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