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《Materials Review》 2018-S1
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Research on the Determining Method of the RCA Content in Bituminous Stabilization Aggregate Paving Mixtures

ZHANG Wengang;JIA Zhirong;JI Xiaoping;School of Civil and Architectural Engineering,Shandong University of Technology;Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University;  
In order to solve the application problems of recycled concrete aggregate(RCA)in bituminous stabilization aggregate paving mixtures,vibration testing was used in this research,and the volume indexes,mechanical parameters and pavement performance of ATB-25 with different RCA contents were tested.The determining model of reasonable RCA content based on the mechanical parameters and pavement performance was established.The results showed that with the increasing of RCA's content,the bulk volume relative density reduced while VV,VMA,and VFA basically remained unchanged,and MS,τ,Rireduced.RCA was detrimental to the water stability and low temperature crack resistance but advantageous to high temperature stability.[0,min(RRCAC1,RRCAC2)]was the computational model of reasonable RCA content.Vibration testing is more suitable to bituminous stabilization aggregate paving mixtures with RCA which can lead to higher performances and RCA content.
【Fund】: 国家自然科学基金(51408044);; 山东省自然科学基金(BS2015SF016)
【CateGory Index】: U414
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