Technical Research on Application of Warm Mix Flame-retardant Noise Reduction Asphalt Mixture

摘要

Due to the special environment of the tunnel, the paper developed a kind of antiflaming, warm-mix and noise reduction asphalt mixture combined with engineering practice chishui tunnel project in jiangxi province. Asphalt mixture has good performance in low mixing temperature, flame retardant, noise reduction and better performance by using AMP flame-retardant and Evotherm DAT warmed-mix technology. A series of test are carried out to analyze the characteristics of high temperature rutting, low temperature crack resistance and water stability of warmed mix flame retardant noise reduction asphalt mixture and Ordinary hot mix asphalt mixture. The result show that, compared with the pavement performance of ordinary hot mix asphalt mixture AC-13, the new type of asphalt mixture OGFC-13 has good cooling, flame retardant and noise reduction performance. Fire safety is an important part of highway tunnel fire safety engineering. Engineering is often used to add flame retardant additive into the asphalt mixture to achieve the purpose of antiflaming. Fame retardant materials reduce the happening of the fire to prevent small fire to develop into the disastrous fire. Warm mix technique is originated in Europe in recent years and it gradually develops in the global. The main development goals is "energy conservation and emissions reduction" by adding special additives or water, or the use of special material processing technology to reduce the viscosity of asphalt and the asphalt mixture can be molding in lower (compared with HMA) temperature conditions and have the same performance of HMA. In tunnel, the space is narrow, so the construction of asphalt mixture of volatile gas difficult to dissipate and the accumulation of these gases will greatly harm the personal safety, therefore, in the tunnel, especially long tunnel, temperature mixing technology has a broad application prospect. Warm mix can be done by different additives. The paper developed a kind of antiflaming, warm-mix and noise reduction asphalt mixture combined with engineering practice chishui tunnel project in jiangxi province. MeadWestvaca companies provide Temperature mixed liquid DAT and flame retardant AMP is produced by Chongqing Sea Wood Transportation Technology Company.