隧道路面温拌改性沥青砼性能及节能减排效果评价
发布时间:2018-07-25 08:41
【摘要】:温拌技术是一种新型的绿色筑路技术,在我国有着广阔的应用前景。温拌沥青混合料WMA(Warm Mixture Asphalt)是一种新型的节能环保型沥青混合料,其拌和与成型温度低于热拌沥青混合料15℃-30℃的,WMA具有施工温度低,产生烟雾及排放较少等优点,应用于隧道路面铺装不仅可以显著解决目前HMA高污染、高排放的现状,而且可以有效地改善隧道环境,具有很好的应用前景。本文在现今道路低碳环保需求的研究背景下,以隧道温拌沥青为主要研究对象,在总结了国内外发展研究现状的基础上,结合我国路面的实际情况,针对温拌技术在隧道路面应用的特殊要求,采用有机添加剂Evotherm作为温拌剂改性沥青,研究Evotherm温拌沥青混合料的设计及路用性能,并对隧道温拌沥青进行节能减排效益评价。论文研究结果表明:掺入SBS改性沥青质量的5%的温拌剂,在试验所用温度130℃-150℃之间,约为140℃左右拌合的温拌沥青混合料,除水稳定性外和低温性能略有下降,其余各项使用性能相比普通热拌沥青混合料变化均不大。隧道温拌技术节能减排效益显著,建设期节约燃油114.256toe,节能163.222tce,施工现场的沥青烟减少了90.2%,CO2排放减少61.5%,抑止人体代谢能力的CO减少69.9%。具有脏器伤害作用的NOX和SO2减幅分别达到73.5%及74.4%。
[Abstract]:Warm-mix technology is a new green road construction technology, which has a broad application prospect in China. Warm mix asphalt mixture (WMA (Warm Mixture Asphalt) is a new type of energy-saving and environment-friendly asphalt mixture. Its mixing and molding temperature is lower than that of hot mix asphalt mixture at 15 鈩,
本文编号:2143256
[Abstract]:Warm-mix technology is a new green road construction technology, which has a broad application prospect in China. Warm mix asphalt mixture (WMA (Warm Mixture Asphalt) is a new type of energy-saving and environment-friendly asphalt mixture. Its mixing and molding temperature is lower than that of hot mix asphalt mixture at 15 鈩,
本文编号:2143256
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