Classification of Coarse Recycled Aggregate Used in Asphalt Concrete

Ji Qing Zhu; Shao Peng Wu; Jin Jun Zhong; Dong Ming Wang

doi:10.4028/www.scientific.net/AMM.71-78.1025

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Classification of Coarse Recycled Aggregate Used...

Classification of Coarse Recycled Aggregate Used in Asphalt Concrete

Abstract:

Two classification methods for coarse recycled aggregate used in asphalt concrete were investigated in this paper, respectively classifying by coarse recycled aggregate properties and asphalt concrete properties. When classifying by coarse recycled aggregate properties, coarse recycled aggregate was classified into three types by the apparent specific gravity, water absorption, crushed value, Los Angeles abrasion value and brick content of coarse recycled aggregate. When classifying by asphalt concrete properties, coarse recycled aggregate was used to prepare asphalt concrete; and coarse recycled aggregate was classified into three types by the optimum asphalt content ratio (R_OAC), theoretical maximum specific gravity ratio (R_TMSG) and indirect tensile strength ratio (R_ITS) of asphalt concrete containing coarse recycled aggregate. The proposed classification criterions of the two classification methods were respectively given.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

1025-1030

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.1025

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Cite this paper

Online since:

July 2011

Authors:

Ji Qing Zhu, Shao Peng Wu, Jin Jun Zhong, Dong Ming Wang

Keywords:

Asphalt Concrete, Classification Criterion, Classification Method, Coarse Recycled Aggregate

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