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Author:

Wang, C. (Wang, C..) | Chazallon, C. (Chazallon, C..) | Hornych, P. (Hornych, P..) | Jing, P. (Jing, P..) | Mouhoubi, S. (Mouhoubi, S..)

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Scopus

Abstract:

It is known that the strength and stiffness of unbound base and subbase layers prepared with recycled concrete aggregates (RCA) increase over time, known as self-cementing properties of RCA. However, the influence of self-cementing properties on the permanent and resilient deformation behavior has not been thoroughly studied. In this study, the permanent and resilient deformation behavior of two RCA, ORCA and NRCA (old and fresh crushed RCA), after different curing times (1, 180, 360, and 720 days), were investigated by conducting a series of repeated load triaxial tests. The results show that the permanent deformation of NRCA, crushed recently, decreases to a negligible value after curing 180 days, and then reaches a constant value. While the resilient modulus of NRCA increases steadily with curing time till the studied curing time (720 days). Besides, the long-term storage reduces the self-cementing properties of ORCA. As a result, the negligible self-cementing properties have no influence on the permanent and resilient deformation behavior of ORCA.  © 2023 ASCE.

Keyword:

resilient modulus permanent deformation repeated load triaxial test Recycled concrete aggregates unbound granular materials selfcementing properties

Author Community:

  • [ 1 ] [Wang C.]Université de Strasbourg, Insa de Strasbourg, CNRS, ICube, Umr 7357, Strasbourg, France
  • [ 2 ] [Chazallon C.]Université de Strasbourg, Insa de Strasbourg, CNRS, ICube, Umr 7357, Strasbourg, France
  • [ 3 ] [Hornych P.]MAST-LAMES, Gustave Eiffel Univ., Nantes Campus, Bouguenais, France
  • [ 4 ] [Jing P.]College of Metropolitan Transportation, Beijing Univ. of Technology, Beijing, China
  • [ 5 ] [Mouhoubi S.]Université de Strasbourg, Insa de Strasbourg, CNRS, ICube, Umr 7357, Strasbourg, France

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Year: 2024

Page: 168-176

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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