摘要
在常温下拌合和摊铺乳化沥青厂拌冷再生沥青混合料;然后,采用红外线或微波辐射加热摊铺后的再生沥青混合料,使底层混合料的加热温度为140℃～160℃,表层混合料的加热温度为150℃～170℃;最后,采用双钢轮压路机和轮胎压路机碾压加热后的沥青混合料至95%～100%的压实度。加热碾压工艺使得冷再生混合料中旧沥青和新添加的沥青加热融化后,在碾压过程中共同渗透、扩散到矿料表面,在矿料颗粒之间起黏结作用,提高了再生混合料的黏结强度,回收混合料中的旧沥青得以充分利用。具有广泛的应用前景。
A method for heating and rolling cold plant-mixed recycled asphalt mixtures with emulsion asphalt was put up,which comprises the following steps： mixing and paving the cold plant-mixed recycled asphalt mixtures with emulsion asphalt;heating the paved recycled asphalt mixtures with infrared rays or microwave radiation so that the heating temperature of the mixture on the bottom layer is（140—160） ℃,and the heating temperature of the mixture on the surface layer is（150—170） ℃;and rolling the heated asphalt mixtures by using a double-steel-wheel roller and a pneumatic tyre roller until the degree of compaction reaches（95—100） %.By utilizing the heating and rolling process,after becoming molten,the old asphalt in the cold recycled asphalt mixtures and the newly added asphalt together infiltrate and diffuse into the surface of mineral aggregates in the rolling process and perform a cohesive action among the mineral aggregate granules,thereby enhancing the cohesive strength of the recycled asphalt mixture and fully utilizing the old asphalt in the recycled mixture.Its application prospect is much wider.
出处
《科学技术与工程》
2011年第20期4924-4926,共3页
Science Technology and Engineering
关键词
路面工程
沥青混合料
冷再生
加热
碾压
pavement engineering asphalt mixture cold recycling heated compaction
作者简介
潘勇（1974-），男，江苏宜兴人，高级工程师，研究方向：道路设计与建设管理。E-mail：2008pangyong@163．com。
通信作者简介：葛折圣（1974-），男，高级工程师，工学博士，研究方向：路基、路面工程。E-mail：gzsheng@263．net。
