Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Warm-mixing recycled asphalt mixture preparation method
The invention discloses a warm-mixing recycled asphalt mixture preparation method which comprises the following steps: I, preparing a compound regenerant; II, preparing a compound warm-mixing agent; III, measuring the mass content and natural gradation of old asphalt in an RAP material and respectively determining mass ratios of novel aggregate and novel mineral powder which are required for preparing the warm-mixing recycled asphalt mixture to the RAP material; IV, preparing a warm-mixing recycled asphalt mixture sample and determining an optimum asphalt-aggregate ratio of the warm-mixing recycled asphalt mixture; V, under the condition of the optimum asphalt-aggregate ratio, preparing the warm-mixing recycled asphalt mixture. According to the invention, the recycling rate of the RAP material reaches 70% or above, meanwhile, secondary aging of the asphalt mixture is avoided, the advantages of energy saving and carbon emission and harmful gas emission reduction are realized and the warm-mixing recycled asphalt mixture prepared through the preparation method has good pavement performance.
Warm-mixing recycled asphalt mixture preparation method
The invention discloses a warm-mixing recycled asphalt mixture preparation method which comprises the following steps: I, preparing a compound regenerant; II, preparing a compound warm-mixing agent; III, measuring the mass content and natural gradation of old asphalt in an RAP material and respectively determining mass ratios of novel aggregate and novel mineral powder which are required for preparing the warm-mixing recycled asphalt mixture to the RAP material; IV, preparing a warm-mixing recycled asphalt mixture sample and determining an optimum asphalt-aggregate ratio of the warm-mixing recycled asphalt mixture; V, under the condition of the optimum asphalt-aggregate ratio, preparing the warm-mixing recycled asphalt mixture. According to the invention, the recycling rate of the RAP material reaches 70% or above, meanwhile, secondary aging of the asphalt mixture is avoided, the advantages of energy saving and carbon emission and harmful gas emission reduction are realized and the warm-mixing recycled asphalt mixture prepared through the preparation method has good pavement performance.
Warm-mixing recycled asphalt mixture preparation method
HAO PEIWEN (Autor:in) / ZHANG HAIWEI (Autor:in) / LI YONGXIANG (Autor:in) / TANG CHENG (Autor:in) / ZHAI RUIXIN (Autor:in) / WEN KE (Autor:in) / HE LINGJUAN (Autor:in)
03.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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