Early Traffic Opening-Capable Continuous Multi-Layer Asphalt Pavement Maintenance Method Using Electric Arc Furnace Slag Aggregate and Emulsified Asphalt

전기로슬래그 혼합골재를 이용한 조기교통개방이 가능한 연속 적층식 상온 아스팔트포장 유지보수 공법

The main purpose of this paper is to introduce the early traffic opening-capable continuous multi-layer asphalt pavement maintenance method using electric arc furnace slag aggregate and emulsified asphalt to the actual construction sites. As well known, the previous surface treatment method of emulsified asphalt mixture have various shortcomings such as long work-time, traffic congestions, plastic deformation and poor evenness. Thus, the proposed method has enabled tile early traffic opening by utilizing the optimized emulsified asphalt after consideration of the climate and road conditions in Korea. The application of the electric furnace slag with $6\;{\sim}\;18\;mm$ thickness is helpful to become a environment-friendly construction method. And also, it has been improved enough to accommodate night-time works of mechanized construction activities for wearing course and control course.