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沥青路面双层一体摊铺技术研究是将两层沥青层一次摊铺完成的新型施工技术,与传统的单层铺筑相比,双层一体摊铺技术可有效改善层间结合状况、减少摊铺过程中的沥青温度散失,节省施工时间,减薄上面层厚度,节约公路建设费用。为了研究双层摊铺层间粘结性能以及热量散失规律,本文进行了沥青混合料双层一体摊铺室内剪切试验及温度散失试验,研究结果表明:双层摊铺抗剪强度与传统施工方式相比提高了57.4%,有效碾压时间可以延长至30～90min。研究结论对双层一体摊铺技术的推广应用具有指导意义。
Asphalt pavement double-layer paving technology research is a two-layer asphalt paving completed a new type of construction technology, and the traditional single paving compared to double-paving technology can effectively improve the integration between the layers to reduce the share Asphalt temperature during the shop is dissipated, saving construction time, reducing the thickness of the top layer and saving the cost of road construction. In order to study the bonding properties of double-layer paving layer and heat loss law, this paper carried out a double-layer asphalt paving indoor shearing test and temperature loss test, the results show that: double paving shear strength and the traditional construction Compared to 57.4% increase in the way, the effective rolling time can be extended to 30 ~ 90min. The conclusion of the research is instructive for the popularization and application of double-layer paving technology.