交通运输-白改黑城市道路改造技术探讨（Discussion on urban road reconstruction technology of white to black transportation）.docVIP

交通运输-白改黑城市道路改造技术探讨（Discussion on urban road reconstruction technology of white to black transportation） Discussion on urban road reconstruction technology of white to black transportation.Txt Abstract: the road white to black, that is, on the basis of the original cement concrete pavement, asphalt concrete surface layer, so that the original concrete rigid pavement into asphalt flexible pavement. In the construction of white to black, the treatment of cement concrete pavement as a roadbed and its related construction are very important to ensure the quality and practicability of the new paved asphalt concrete surface. This article unifies the Jinan city the first implementation of the white to black City Road, seven road (Luoyuan Street) reconstruction project, summarizes the improvement of the key points of design and construction of similar projects. A seven road (Luoyuan Street) maintenance project overview Jinan city seven road (Luoyuan Street) as the main maintenance engineering in Jinan City, a total length of 5600 meters, which is about 4640 meters to fast track the cement concrete pavement for asphalt concrete pavement construction, the fast lane is 22 meters wide, transforming an area of 102080 square meters, designed for on base layer after treatment, spray emulsion heat 1.2KG/M2 asphalt, geotextile paving, 6 cm and 4 cm grain type asphalt concrete modified fine asphalt concrete. According to the construction site and construction requirements, the construction unit of the semi closed traffic mode, which closed between four lane pool construction until the cement concrete base puwan grain type, then closed on both sides of two lanes in the same construction, finally from 2 to 3 days when fully closed in the fast lane, the construction of the above the fine layer of modified asphalt concrete, effectively solve the closed construction and ensure traffic contradiction, control the project quality, speed up the construction progress. Two, the original cement c