常温树脂沥青极薄罩面预养护技术应用研究  

Research on Application of Preventive Maintenance Technology for Ultra-thin Cover of Resin Asphalt at Normal Temperature

作　　者：朱益兵 ZHU Yi-bing(JSTI Group Co.,Ltd.,Nanjing,Jiangsu 210000,China)

机构地区：[1]苏交科集团股份有限公司,江苏南京210000

出　　处：《黑龙江交通科技》2023年第2期13-16,共4页Communications Science and Technology Heilongjiang

摘　　要：针对目前热拌类薄层罩面预防性养护技术易产生大量的能耗和污染气体排放,且存在混合料热老化、施工时温度散失快导致路用性能不足,冷拌冷铺的微表处类技术存在施工工艺复杂、平整度欠佳等问题,采用矿料最紧密法作为极薄罩面混合料的配合比设计方法,并通过在SBS改性沥青中加入树脂改性剂提高混合料在中温条件下的施工和易性,实现1~2 cm常温树脂沥青极薄罩面预养护技术。通过在233国道溧阳段预防性养护工程中的应用研究,介绍了常温树脂沥青极薄罩面技术的基本原理、混合料性能,总结了施工工艺、经济社会效益。In view of the fact that the current hot-mix thin-layer overlay preventive maintenance technology is prone to generate a large amount of energy consumption and polluting gas emissions,and the thermal aging of the mixture and the rapid temperature loss during construction lead to insufficient road performance,the micro-surface of cold-mix and cold-paving technology has problems such as complex construction process and poor flatness.The most compact method of mineral material is used as the mixing ratio design method of the ultra-thin topping mixture,and the resin modifier is added to the SBS modified asphalt to improve the performance of the mixture.The construction workability under medium temperature conditions realizes the precuring technology of 1~2 cm normal temperature resin asphalt very thin cover.Through the application research in the preventive maintenance project of the Liyang section of the 233 national highway,the basic principle and mixture properties of the room temperature resin asphalt ultra-thin coating technology are introduced,and the construction technology,economic and social benefits are summarized.

关 键 词：常温树脂改性沥青 极薄罩面 预养护技术 路用性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]