Expanded Polystyrene (EPS) geofoam: An introduction to material behavior

Horvath, John S.

doi:10.1016/0266-1144(94)90048-5

Cited by 162 publications

(84 citation statements)

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“…Geofoam has been acknowledged, relative to its low unit weight, as an attractive choice of substitute for earthfills in special infrastructure works, e.g., widened embankments, abutments or bridge approaches, retaining works and flexible pipeline backfills (Horvath 1994;Duskov 1997;Greeley 1997). The replacements with geofoam were able to mitigate the vertical stresses imposed onto underlying (difficult) soils (Horvath 1994(Horvath , 1997(Horvath , 2008Doskov 1997;Snow and Nickerson 2004) or flexible utilities pipelines, as well as to reduce the lateral stresses loaded onto the side-way earth structures (Hazarika and Okuzono 2004;Horvath 2004).…”

Section: Introductionmentioning

confidence: 99%

“…The replacements with geofoam were able to mitigate the vertical stresses imposed onto underlying (difficult) soils (Horvath 1994(Horvath , 1997(Horvath , 2008Doskov 1997;Snow and Nickerson 2004) or flexible utilities pipelines, as well as to reduce the lateral stresses loaded onto the side-way earth structures (Hazarika and Okuzono 2004;Horvath 2004). In practice, geofoam also demonstrated favorable performances in buffering mechanical impacts, e.g., swelling of expansive soil (Aytekin 1997;Ikizler et al 2008) and seismic vibrations (Riad and Horvath 2004;Zarnani et al 2009), as well as in mitigating thermal distresses in permafrost regions (Wen et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Measuring and Modeling Proportion-Dependent Stress-Strain Behavior of EPS-SandMixture

Deng

Xiao

2010

Int. J. Geomech.

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A geofoam was produced by blending expanded polystyrene (EPS) beads and sands in proportions. The formed mixtures, known as EPS-sands, were 32-66% lighter than general earthfills (e.g., sand). Consolidated-drained (CD) triaxial compression tests were conducted on EPS-sand mixture specimens to observe their stress-strain characteristics, specifically, the stress-strain responses in relation to the EPS contents (0.5%, 1.5% and 2.5% by weight) used in the mixtures and confining pressures

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measuring and Modeling Proportion-Dependent Stress-Strain Behavior of EPS-SandMixture

Deng

Xiao

2010

Int. J. Geomech.

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“…Many researchers have studied the properties of EPS geofoam. Horvath [7] divided a typical stress-strain curve from a short-term test of EPS into three key stages: the first stage exhibits linear-elastic behavior up to between 1 and 2% strain; the second stage includes yield which occurs at greater strain; the third stage features postyield work-hardening behavior. Manufacturers have also reported an elastic strain limit of 1% based on rapid uniaxial compression tests.…”

Section: Numerical Modelsmentioning

confidence: 99%

Numerical Analysis of Earthquake Load Mitigation on Rigid Retaining Walls Using EPS Geofoam

Wang¹,

Bathurst²

2012

TOCIEJ

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Abstract:The mitigation of seismic-induced dynamic earth forces by placing a vertical layer of expanded polystyrene (EPS) geofoam buffer between a rigid retaining wall and the backfill soil is a recent geotechnical innovation. In this paper, the influence of an EPS geofoam buffer on the reduction of dynamic wall forces is numerically studied by simulating the results of three reduced-scale models of rigid walls mounted on a large shaking table. Numerical simulations were carried out using the finite element program ABAQUS. The paper shows that the numerical results capture the trend in earth forces with increasing base acceleration for all three models. The quantitative dynamic load-time response from the numerical simulations was also judged to be in good agreement with measured physical test values. The numerical trend of EPS geofoam also is the same as that of measured test data. With the increasing time, the compression of EPS geofoam increases. And softer EPS geofoam produces more compression which takes more vibration energy by its deformation. The numerical results confirm the results of physical tests that demonstrate that EPS geofoam seismic buffers hold great promise to reduce earthquake-induced dynamic loads against rigid retaining wall structures.

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“…According to [14] EPS beads are hydrophobic in nature and it has closed cell structure that prevents absorption of water in it. The EPS is a highly compressible material available in different types for specific purposereported by [15]. The mechanical characteristics of light-weight soils consisting of Expanded Polystyrene (EPS), dredged clays, and cement through both unconfined and triaxial compression tests was studied by [16].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Reinforced Soil under Unconfined Axial Compression Loading

B¹,

Nawkhare²,

Badwaik³

2017

IJET

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Abstract-This paper pertain the unconfined compressive strength test results of newlydeveloped geomaterial prepared using blast furnace slag, plastic strips cut from used and waste plastic water bottle, EPS beads and locally available soil. The increase in production of slag, plastic waste and their disposal in an eco-friendly manner is a matter of concern. This paper briefly describes the suitability of slag and plastic waste to be used in geotechnical engineering applications as a way to minimize their disposal in the environment and in the direction of sustainable development

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Expanded Polystyrene (EPS) geofoam: An introduction to material behavior

Cited by 162 publications

References 1 publication

Measuring and Modeling Proportion-Dependent Stress-Strain Behavior of EPS-SandMixture

Measuring and Modeling Proportion-Dependent Stress-Strain Behavior of EPS-SandMixture

Numerical Analysis of Earthquake Load Mitigation on Rigid Retaining Walls Using EPS Geofoam

Behaviour of Reinforced Soil under Unconfined Axial Compression Loading

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