摘要
随着绿色交通理念的不断深入,公路养护工程也开始应用新型环保技术。由于各省市公路养护资金投入力度不一,且公路大中修造价不菲,就此介绍一种普遍适用的公路预防性养护技术———开普封层。文章回顾了境内外开普封层的发展历程,总结和梳理了开普封层的适用范围、内在原理、原材料选择和技术要求、配合比设计、施工工艺及质量控制、工后结构性病害等方面内容,旨在为开普封层施工提供技术支持。结果表明:开普封层经济效益和社会效益突出,施工速度快,节能环保和造价低廉。同步碎石封层能有效消减和吸收基层温缩裂缝产生的应力,延缓沥青面层反射裂缝。微表处/稀浆封层防水效果良好,能增加行驶舒适性能,提高路面整体使用寿命。
With the development of the green transportation concept,highway maintenance technology has become an important part of new environmental protection mode.Because the input of maintenance funds of each province are different,and the cost of medium-term and major repair is high,the cape seal technology is introduced which is a widely applied highway preventive maintenance technology.In the paper,development process of the cape seal technology at home and abroad is reviewed,the application scope,internal principle,raw material selection and technical requirements,mix proportion design,construction technology and quality control,post-construction structural defects of cape seal are summarized,with the aim to provide technical guidance for construction of cape seal.The results show that:cape seal has good economic and social benefits,with rapid construction speed,environmentalfriendliness,energy conservation and low cost.The synchronous gravel seal can effectively reduce and absorb the base stress generated by the temperature shrinkage crack and delay the reflection crack on asphalt surface course.The waterproof effect of the micro-surface/slurry seal is good,which can increase the comfort of driving and the overall service life of the road.
作者
白茹雪
吕晨炜
BAI Ru-xue;LYU Chen-wei(Highway administration of Bayannur city,Bayannur 015000,China;Road Bureau of Inner Mongolia Autonomous Region,Hohhot 010020,China)
出处
《公路》
北大核心
2019年第11期252-258,共7页
Highway
基金
江苏省研究生创新项目，项目编号KYLX16_0242
东南大学优秀博士学位论文培育基金项目，项目编号YBJJ1735
关键词
开普封层
理论原理
适用范围
配合比设计
施工工艺
结构性病害
cape seal
internal principle
range of application
mixture ratio design
construction technology
structural defects
