Long-term permanent deformation behaviour of recycled concrete aggregate with addition of crumb rubber in base and sub-base applications

Saberian Boroujeni, M and Li, J 2019, 'Long-term permanent deformation behaviour of recycled concrete aggregate with addition of crumb rubber in base and sub-base applications', Soil Dynamics and Earthquake Engineering, vol. 121, pp. 436-441.


Document type: Journal Article
Collection: Journal Articles

Title Long-term permanent deformation behaviour of recycled concrete aggregate with addition of crumb rubber in base and sub-base applications
Author(s) Saberian Boroujeni, M
Li, J
Year 2019
Journal name Soil Dynamics and Earthquake Engineering
Volume number 121
Start page 436
End page 441
Total pages 6
Publisher Elsevier
Abstract The structural behaviour of pavements depends on the permanent and resilient deformations. These deformations are accumulated during the pavement lifetime. Although many studies have been done to explore the use of construction and demolition (C&D) waste materials in road pavement construction, the long-term permanent deformation behaviour (i.e., 100,000 loading cycles) of recycled concrete aggregate (RCA) with an addition of crumb rubber as base/subbase layers has not been studied yet. The aim of this study is to assess whether RCA combined with crumb rubber can be used as the base or sub-base materials or not. Two different crumb rubber sizes were used in this study: a fine type measuring 15 mm in diameter and a coarse type measuring 1520 mm. 0.5, 1% and 2% crumb rubber by weight of the dry aggregate were added to the 20 mm RCA. A series of repeated load triaxial tests were performed to investigate the effects of the sizes and percentages of crumb rubber on the long-term permanent deformation characteristics of RCA incorporating rubber. The results show that only RCA and RCA containing 0.5% fine or coarse rubber can be used as base and sub-base material in pavement in terms of long-term permanent deformation.
Subject Civil Engineering not elsewhere classified
Environmental Management
Civil Geotechnical Engineering
Keyword(s) Recycled concrete aggregate
Crumb rubber
Long term permanent deformation
Base and sub-base
Dynamic wheel loads
DOI - identifier 10.1016/j.soildyn.2019.03.029
Copyright notice © 2019 Elsevier Ltd. All rights reserved.
ISSN 0267-7261
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