Key Construction Technology And Evaluation On Energy Conservation And Emission Reduction Related To Warm Mix Asphalt On Tunnel

Warm mix technology is a new green road technology. It has a broad application prospect in China. WMA(Warm Mixture Asphalt) is a kind of new energy-saving and environmentally friendly asphalt whose mixing and molding temperature is reduced by 15℃—30℃ compared with hot mixtureasphalt. WMA has the construction of low temperature, and emit less smoke, etc., used in the tunnel Pavement not only significantly HMA resolve the current situation of high pollution and high emissions, and can effectively improve the tunnel environment, with good prospects.In this paper, the research background of low carbon environmental needs of today’s road to the tunnel warm mix asphalt as the main object of study, at the conclusion of the present situation of the development of research based on the actual situation of the road, use warm mix technology for road tunnel special requirements, use of organic additives Evotherm agent as warm mix asphalt, research Evotherm warm mix asphalt pavement design and performance, and the tunnel warm mix asphalt Evaluation energy saving benefits.Thesis research results show that: the incorporation of SBS modified asphalt quality 5% of warm mix agent used in the test temperature between 130 ℃-150 ℃, about about 140 ℃ mix of warm mix asphalt, in addition to water stability outside and low temperature performance declined slightly, the rest of the performance compared to a conventional hot mix asphalt changes are not large. Tunnel warm mix technology of energy saving and efficiency significantly, the construction of saving fuel 114.256 toe, saving 163.222 tce, the construction site of asphalt smoke decreased 90.2%, CO2 emissions by 61.5%, to suppress the body’s ability to metabolize CO 69.9% decrease. Have organ damage reduction effects of NOX and SO2, respectively, 73.5% and 74.4%.