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

•The compression behaviour of aggregate-expanded polystyrene beads composites was studied.•A large size oedometer was used with inserted sensors to measure directly the lateral earth pressure.•The increase of aggregate size influenced the dominant load transfer mechanism and decreased K0.•A competit...

Full description

Saved in:
Bibliographic Details
Published in:Construction & building materials 2021-10, Vol.302, p.124145, Article 124145
Main Authors: Kazempour, Shaghayegh, Chenari, Reza Jamshidi, Ahmadi, Hadi, Payan, Meghdad, Senetakis, Kostas
Format: Article
Language:English
Subjects:
Coefficient of volume compressibility
Composite aggregate
Constrained modulus
EPS beads
Lateral earth pressure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:•The compression behaviour of aggregate-expanded polystyrene beads composites was studied.•A large size oedometer was used with inserted sensors to measure directly the lateral earth pressure.•The increase of aggregate size influenced the dominant load transfer mechanism and decreased K0.•A competitive interplay between angularity and uniformity coefficient of the aggregate was observed.•The increase of EPS content reversed the relationship between aggregate size and K0. 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
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2021.124145