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A platform for research: civil engineering, architecture and urbanism
Preparation method of plant-mixed hot recycled asphalt mixture
The invention relates to the technical field of asphalt mixture preparation, and discloses a preparation method of plant-mixed hot recycled asphalt mixture, which comprises: 1) preparing a matrix asphalt and waste asphalt mixture meeting requirements, and screening the waste asphalt mixture into a coarse waste asphalt mixture and a fine waste asphalt mixture; 2) detecting the asphalt content in the waste asphalt mixture, checking the physical performance indexes of the coarse and fine groups of waste asphalt mixtures, and determining the optimal mixing ratio of the coarse and fine groups of waste asphalt mixtures; 3) determining the amount of new asphalt in combination with the asphalt content in the waste asphalt mixture; and 4) heating the matrix asphalt to 155 DEG C, preheating the coarse and fine groups of waste asphalt mixtures in a drying oven for 4 hours, heating the new aggregate, mixing the heated matrix asphalt, new aggregate, new asphalt and mineral powder into the coarse and fine groups of waste asphalt mixtures, mixing and stirring, and heating in the drying oven again.
本发明涉及沥青混合料制备的技术领域，公开了厂拌热再生沥青混合料制备方法，步骤如下：1)准备满足要求的基质沥青和废旧沥青混合料，并将废旧沥青混合料筛分为粗细两组废旧沥青混合料；2)对废旧沥青混合料中的沥青含量进行检测，并对粗细两组废旧沥青混合料的物理性能指标进行检查，确定粗细两组废旧沥青混合料的最佳掺入比例；3)结合废旧沥青混合料中的沥青含量确定新沥青用量；4)将基质沥青加热至155℃，将粗细两组废旧沥青混合料在烘箱中预热4小时，将新集料加热，然后将加热后的基质沥青、新集料、新沥青以及矿粉混合至粗细两组废旧沥青混合料内，混合搅拌后再次放入烘箱加热。
Preparation method of plant-mixed hot recycled asphalt mixture
The invention relates to the technical field of asphalt mixture preparation, and discloses a preparation method of plant-mixed hot recycled asphalt mixture, which comprises: 1) preparing a matrix asphalt and waste asphalt mixture meeting requirements, and screening the waste asphalt mixture into a coarse waste asphalt mixture and a fine waste asphalt mixture; 2) detecting the asphalt content in the waste asphalt mixture, checking the physical performance indexes of the coarse and fine groups of waste asphalt mixtures, and determining the optimal mixing ratio of the coarse and fine groups of waste asphalt mixtures; 3) determining the amount of new asphalt in combination with the asphalt content in the waste asphalt mixture; and 4) heating the matrix asphalt to 155 DEG C, preheating the coarse and fine groups of waste asphalt mixtures in a drying oven for 4 hours, heating the new aggregate, mixing the heated matrix asphalt, new aggregate, new asphalt and mineral powder into the coarse and fine groups of waste asphalt mixtures, mixing and stirring, and heating in the drying oven again.
本发明涉及沥青混合料制备的技术领域，公开了厂拌热再生沥青混合料制备方法，步骤如下：1)准备满足要求的基质沥青和废旧沥青混合料，并将废旧沥青混合料筛分为粗细两组废旧沥青混合料；2)对废旧沥青混合料中的沥青含量进行检测，并对粗细两组废旧沥青混合料的物理性能指标进行检查，确定粗细两组废旧沥青混合料的最佳掺入比例；3)结合废旧沥青混合料中的沥青含量确定新沥青用量；4)将基质沥青加热至155℃，将粗细两组废旧沥青混合料在烘箱中预热4小时，将新集料加热，然后将加热后的基质沥青、新集料、新沥青以及矿粉混合至粗细两组废旧沥青混合料内，混合搅拌后再次放入烘箱加热。
Preparation method of plant-mixed hot recycled asphalt mixture
厂拌热再生沥青混合料制备方法
XU MENG (author) / LIU ZHONG (author) / TU LIANGLIANG (author) / LAI SHAOXIONG (author) / HOU YONGYONG (author) / ZENG JUNJIE (author)
2020-12-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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