In an interview with the Slender West Lake Tunnel construction site recently, the reporter saw that after the efforts of the constructors, the Shouxihu tunnel underpasses the Youyi Road project. New progress has also been made. The asphalt on the upper layer of the tunnel has been paved, and the opening of the road has been restored, and the underground has been successfully realized. Walk separately on the ground. The most eye-catching is that the asphalt used in the upper part is a high-tech product --- fiber reinforced plastic compound modified asphalt concrete, which was first used in Yangzhou.
It is understood that this new type of asphalt concrete technology research is a scientific research and design project declared by the municipal construction department according to the current investigation of the typical asphalt pavement and the characteristics of Yangzhou's climate in 2011, and it can improve the high and low temperature performance and water stability of asphalt pavement. Increased anti-aging, anti-fatigue, reduce car noise, extend road life, save road maintenance costs and other comprehensive advantages. After previous indoor related tests, and through the asphalt manufacturer's proportioning verification, at the end of last month, it finally entered the trial phase of the friendship tunnel of Slender West Lake Tunnel. The trial results showed good performance.
During the interview, the reporter learned that the staff will later carry out relevant economic and technical comparisons with the conventional SMA modified asphalt concrete for this test section, and study the construction process and quality of this new type of asphalt concrete pavement according to the road performance during the test section operation period. The control method is applied and promoted on the basis of the test section.
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