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甘肃地区Superpave路面材料标准

Keywords: 道路工程,甘肃地区,气温,LTPP模型,PG分级,集料标准

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Abstract:

为了研究甘肃地区Superpave路面材料的应用标准,使Superpave路面更好地与甘肃地区的实际情况结合并进行应用,通过对该地区1971~2000年的气温资料整理统计,利用LTPP气候影响模型计算甘肃地区Superpave路面高温和低温设计温度,得到甘肃地区沥青PG等级;同时结合中国及甘肃地区实际情况,对该地区沥青PG等级进行调整,提出该地区沥青PG分级推荐标准;结合天水过境高速公路及西长凤(西峰―长庆―凤翔)高速公路实体工程,对甘肃陇东地区集料进行调查,通过对集料料源特性及加工特性进行试验研究、指标分析,最终提出了甘肃陇东地区Superpave路面集料推荐标准。

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