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依据AASHTO规范设计AC-13沥青混凝土,选择两种具有代表性的温拌剂Advera和Sasobit.采用旋转压实剪切实验机(GTM)成型试件,从力学指标(剪应力)及做功改变试件空隙率两方面,探讨了沥青混合料的工作和易性.实验结果表明:温拌沥青混合料的工作和易性在适宜拌和压实温度范围内较热拌沥青混合料的好;推荐采用8%空隙率时的旋转压实次数作为沥青混合料工作和易性的评价指标.

参考文献

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