水发泡温拌再生沥青混合料体积性能研究
发布时间：2018-12-11 04:47
【摘要】：将水发泡温拌沥青技术用于废旧沥青混合料再生技术,因搅拌温度低于热再生,可以有效地降低对废旧沥青混合料的老化影响,从而增加旧料的再生比例;另一方面,水发泡温拌再生混合料因添加旧沥青混合料后,比一般温拌混合料具有更好的抗车辙能力。因此,该技术充分体现了废物利用、节能减排、绿色环保等优势,具有重要的现实意义。以密级配沥青再生混合料AC-20为例,采用马歇尔试验方法,研究水发泡温拌沥青再生混合料在不同击实温度和沥青用量条件下各马歇尔试验指标的变化规律,确定适宜的击实温度和最佳沥青用量,从而为水发泡温拌沥青再生混合料配合比设计提供理论依据。
[Abstract]:The technology of water foaming and warm mixing asphalt is used to regenerate waste asphalt mixture. Because the stirring temperature is lower than that of heat regeneration, the effect of aging on waste asphalt mixture can be reduced effectively, and the proportion of waste asphalt mixture can be increased. On the other hand, the water foaming and reclaimed mixture has better rutting resistance than the common warm mix because of adding old asphalt mixture. Therefore, the technology fully embodies the advantages of waste utilization, energy saving and emission reduction, green environmental protection and so on, which has important practical significance. Taking the dense gradation asphalt recycled mixture AC-20 as an example, the Marshall test method is used to study the variation law of Marshall test indexes of water foaming warm mix asphalt recycled mixture under different compaction temperature and asphalt content. The optimum compaction temperature and the optimum asphalt content are determined to provide the theoretical basis for the mixture design of the water foaming warm mix asphalt recycled mixture.
【作者单位】： 苏州科技学院土木工程学院;苏州市交通运输局;
【分类号】：U414
[Abstract]:The technology of water foaming and warm mixing asphalt is used to regenerate waste asphalt mixture. Because the stirring temperature is lower than that of heat regeneration, the effect of aging on waste asphalt mixture can be reduced effectively, and the proportion of waste asphalt mixture can be increased. On the other hand, the water foaming and reclaimed mixture has better rutting resistance than the common warm mix because of adding old asphalt mixture. Therefore, the technology fully embodies the advantages of waste utilization, energy saving and emission reduction, green environmental protection and so on, which has important practical significance. Taking the dense gradation asphalt recycled mixture AC-20 as an example, the Marshall test method is used to study the variation law of Marshall test indexes of water foaming warm mix asphalt recycled mixture under different compaction temperature and asphalt content. The optimum compaction temperature and the optimum asphalt content are determined to provide the theoretical basis for the mixture design of the water foaming warm mix asphalt recycled mixture.
【作者单位】： 苏州科技学院土木工程学院;苏州市交通运输局;
【分类号】：U414
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