厂拌冷再生泡沫沥青施工工艺及质量控制

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泡沫沥青不是一种新的沥青胶结料,而是一种新技术应用所带来的产物。泡沫沥青与其他稳定剂相比,优点表现为:(1)增加材料的剪切强度和水稳定性,这类混合料较水泥处治粒料更有柔性、耐疲劳;(2)泡沫沥青处治应用广泛(包括压碎石料、淤泥质砂、矿渣尾料和废旧沥青混合料等);(3)节约能源,仅需加热沥青,集料不需加热和烘干;(4)存放时间较长(一般可放1~3个月);(5)施工受季节和气候影响小。因此,泡沫沥青在国内公路工程上的具有较大的应用价值。本文根据天津市外环线维修工程第四合同段的实际经验,就如何改善泡沫沥青施工工艺及质量控制进行简单论述。
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