The experimental investigation of behaviour of expanded polystyrene (EPS)

Abstract

Low-strength substrates and anthropogenic soils are always an issue in civil engineering. Based on the soil layer types, several methods could be used to improve the basic/foundation layer however it would be difficult to make sure if the specified requirements are achieved. Nowadays, Expandable Polystyrene (EPS) as a lightweight material found as a substitution for traditional methods like soil replacement, soil mixing, using piles driving and other treatment techniques. This paper will demonstrate the static properties of EPS foams in a view point of construction material which will be a key for the future study of these materials. A series of compression tests were carried out on different types of EPS foam to study the effect of EPS geofoam density on the mechanical behaviour of these materials.

Decreasing Earth Thrust with EPS Geofoam

“…1-Lightweight EPSG is produced in many unit weights ranging from 1.12 to 4.57 kN/m3). Hence, it is substantial in reducing stresses on underlying soils, structures, and utilities [12]. 2-Ease of Handling The EPSG can be shaped on-site to accommodate the existing requirements and services [13]…”

“…Sandbags may be placed on top of the EPSG [13]. 4-Buoyancy EPSG as a closed-cell structure and lightweight, is buoyant [12]. 5-Limited water absorption because of its closed-cell structure [13].…”

Assessment of Compressive and Flexural Properties and Stacking Strength of Expanded Polystyrene Boxes: Experimental and Simulation Study

“…In this study, elasticity and plasticity were investigated, and initial moduli and tangent moduli were obtained, but no characteristics of densification were studied. Multiple researchers have developed correlations relating the initial modulus or the tangent modulus to density and strain rate [15,16] and through regression analysis [4,17]. In addition to that method, Akis [18] introduced artificial neural networks to predict the initial modulus and the compressive strength values at 1%, 5% and 10% strain, and both methods yield satisfactory results with a coefficient of correlation values greater than 0.901.…”

The Role of Expanded Polystyrene and Geocell in Enhancing the Behavior of Buried HDPE Pipes under Trench Loading Using Numerical Analyses

“…The performance and durability of these vital substructures depend on their safe and proper design to preserve their safety and operation. One of the approved practical advantages of geosynthetics is their performance in stress attenuation on buried conduits and pipes; thus, this area has been investigated by many researchers [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Anil et al [2] studied the performance, strength, and energy absorption competency of EPS blocks over buried pipes against impact forces.…”