Assessment of the compression characteristics and coefficient of lateral earth pressure of aggregate-expanded polystyrene beads composite fill-backfill using large oedometer experiments

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Shaghayegh Kazempour
  • Reza Jamshidi Chenari
  • Hadi Ahmadi
  • Meghdad Payan
  • Kostas Senetakis

Detail(s)

Original languageEnglish
Article number124145
Journal / PublicationConstruction and Building Materials
Volume302
Online published14 Jul 2021
Publication statusPublished - 4 Oct 2021

Abstract

We examined the compression behaviour of aggregate-expanded polystyrene (EPS) granular composites using large-size oedometer tests measuring directly the coefficient of lateral earth pressure at rest (K0). The results showed that increasing the aggregate particles size led to a decrease of K0 and the coefficient of volume compressibility, in pure aggregates and aggregate-EPS composites with rigid particles of d50 < 2mm. Increased angularity and coefficient of uniformity were observed to display competitive mechanisms in controlling K0. The increase of EPS content led to a transition from a behaviour dominated by aggregate contacts to aggregate-EPS and EPS-EPS major contributions in the load transfer mechanism.

Research Area(s)

  • Coefficient of volume compressibility, Composite aggregate, Constrained modulus, EPS beads, Lateral earth pressure

Citation Format(s)

Assessment of the compression characteristics and coefficient of lateral earth pressure of aggregate-expanded polystyrene beads composite fill-backfill using large oedometer experiments. / Kazempour, Shaghayegh; Chenari, Reza Jamshidi; Ahmadi, Hadi; Payan, Meghdad; Senetakis, Kostas.

In: Construction and Building Materials, Vol. 302, 124145, 04.10.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review