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Wheel tracker testing of recycled concrete and tyre aggregates in Australia

journal contribution
posted on 15.09.2020, 00:00 by A Arulrajah, F Maghool, Alireza Mohammadinia, Mehdi MirzababaeiMehdi Mirzababaei, S Horpibulsuk
Due to the ever-increasing abundance of discarded by-products, it is imperative to develop innovative engineering applications of waste materials, to manage the capacity of landfills. The disposal and landfilling issues associated with tyre waste have necessitated Australian authorities to find innovative applications of tyre waste in pavement construction. In this research, to examine the efficiency of tyre-derived aggregates (TDAs) as a replacement material for quarry aggregates in pavement subbase applications, a series of repeated load triaxial (RLT) tests and wheel-tracker (WT) tests were undertaken on specimens made of proportioned recycled concrete aggregate (RCA) blended with small-sized TDA (TDA-S) and medium-sized TDA (TDA-M), thus merging these two waste materials into a valued pavement-construction material. The results from the RLT and WT tests confirmed that TDA–RCA blends are a suitable alternative for pavement base/subbase materials. Compared with TDA-S, TDA-M resulted in a lower rutting deformation and permanent deformation in WT and RLT tests, respectively. The resilient modulus (M r) of the RCA + TDA-M mix was also found to be higher than that of the RCA + TDA-S mix, and it was almost comparable with the M r of the control RCA.

History

Volume

7

Issue

1

Start Page

49

End Page

57

Number of Pages

9

eISSN

2052-6156

Publisher

I C E

Additional Rights

CC BY 4.0

Language

en

Peer Reviewed

Yes

Open Access

Yes

Acceptance Date

18/12/2019

External Author Affiliations

Swinburne University of Technology; Suranaree University of Technology, Thailand

Era Eligible

Yes

Journal

Geotechnical Research

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