Application Technology Of Oil Shale Waste In Pavement Construction Of Sponge City

As an important part of urban functional sponge,permeable asphalt pavement plays an important role in improving driving conditions,alleviating surface runoff,protecting groundwater resources,and improving urban surface soil ecological environment.However,the functionality of the permeable asphalt pavement determines that the permeable asphalt pavement must have a large void ratio and a low oil-stone ratio.This structure tends to result in a large surface structure depth,the aggregate is exposed,and the asphalt is directly in contact with oxygen and ultraviolet rays.Under the repeated action of traffic load,it is easy to cause the aging of asphalt to lead to the decline of its own bonding performance.Finally,the adhesion of aggregate and asphalt is insufficient,causing the aggregate to fall off,granulate and scatter,and finally develop into a slurry and pit.Pavement and other road diseases.At present,for the durability problem of permeable asphalt pavement,the addition of modifiers is generally used to extend the service life of the permeable asphalt pavement.However,this also leads to a generally high cost of permeable asphalt pavement,which limits the development of permeable asphalt pavement.Therefore,the development of a high-strength and low-priced permeable asphalt pavement according to local conditions has become the development direction of the future permeable asphalt pavement.In view of the above problems,this paper makes an in-depth discussion on improving the strength and life of permeable asphalt by relying on the sponge city construction project in Siping City,Jilin Province,and proposes a way to consume oil shale waste and significantly improve the road performance of permeable asphalt pavement.The comprehensive utilization route: the use of sieved good oil shale waste slag to replace the fine aggregate,and with the aid of silane coupling agent to modify,to prepare an environmentally friendly,high-strength permeable asphalt mixture.The road performance of ORFDM-OGFC was verified by indoor road performance test and test road paving,and the technical standard requirements,design control standards and construction quality control standards of ORFDM-OGFC permeable asphalt pavement were proposed,which was ORFDM-OGFC.The promotion and application of permeable asphalt pavement provides theoretical support and technical reference,which has great practical significance.