Effect of Expanded Polystyrene Particle Size on Engineering Properties of Clayey Soil

Liang, Chuanyang; Wu, Yenan; Liu, Jian; Wu, Huiguo; Chen, Dashuo; Liu, Hui; Song, Yuanzhuo

doi:10.1155/2021/9951915

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Polystyrene, commonly known as styrofoam, is a synthetic aromatic polymer made from styrene monomers with high molecular weight (Ho et al 2017). Polystyrene has many properties, such as pressure resistance, lightweight, and thermal insulation (Liang et al 2021). Moreover, polystyrene covers many types such as Oriented Polystyrene (OPS), High Impact Polystyrene (HIPS), and Expanded Polystyrene (EPS) foam.…”

Section: Introductionmentioning

confidence: 99%

The Potential of Mycofoam as a Biocomposite Material with Various Substrate and Mushroom Compositions

Christos,

Hartanti,

Subali

2024

JSDH

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Mycofoam is a biocomposite composed of mycelial filaments that bind to the host substrate, which can replace polystyrene. This research aims to determine the most appropriate formulation of the growing medium and mushroom to be used in mycofoam products based on some parameters. Composition is one of the main factors for selecting the most appropriate mycofoam to replace polystyrene. On the other hand, the quality of mycofoam can be assessed through its strength and water resistance. The mushroom mycelium used in this study came from Pleurotus ostreatus and Lentinula edodes. Besides, the growing medium formulation comprises five different compositions, each containing different proportions of sawdust and bagasse. This research was composed of preparation of growing medium, spawn inoculation, molding, heating, testing, and data analysis. Based on the results, the combination of 100 percent sawdust and L. edodes was the most appropriate choice compared to other formulations based on strength and appearance. The results of the water absorption test showed that all mycofoam formulations were not resistant to water, bio-based coating can be used to overcome this problem.

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Section: Introductionmentioning

confidence: 99%

The Potential of Mycofoam as a Biocomposite Material with Various Substrate and Mushroom Compositions

Christos,

Hartanti,

Subali

2024

JSDH

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A review on innovative approaches to expansive soil stabilization: Focussing on EPS beads, sand, and jute

Utkarsh,

Jain

2024

Science and Engineering of Composite Materials

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Expansive soils pose major geotechnical challenges due to significant volume changes. This research investigates an innovative stabilization approach using sand, expanded polystyrene (EPS) beads, and jute fibres to enhance the properties of expansive soil. The purpose is to utilize the unique characteristics of these admixtures to restrict swelling potential and improve strength and load-bearing capacity. Experimental testing quantified improvements through parameters like unconfined compressive strength (UCS), swelling pressure, California bearing ratio (CBR), compaction characteristics, and Atterberg limits. Soil samples were prepared with individual and combined admixtures at optimum proportions and extensively tested after proper curing. Quantitative results indicated that including sand, EPS beads, and jute fibres increased the soil’s UCS by 41, 29, and 23%, respectively. The swelling pressure, on the other hand, decreased by 14, 18, and 11%, respectively. Maximum improvements were achieved with combined admixtures: UCS increased by 65%, swelling pressure reduced by 23%, and CBR improved from 5 to 6.5%. Regression analysis indicated a strong correlation (R 2 = 0.96) between admixture proportions and resultant UCS. The key achievements are effective swelling control, a marked increase in shear strength parameters, and synergy between admixtures in enhancing expansive soil properties. This sustainable stabilization method using industrial by-products presents a promising solution for constructing stable civil structures even in problematic expansive soil regions.

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Engineering performance of lightweight geomaterial influenced by EPS density and mix ratio

Pande,

Padade

2023

Emerging Materials Research

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This paper highlights the engineering behavior of an expanded-polystyrene (EPS)-bead-based fly ash geomaterial (FAGM). The proposed geomaterial was prepared by blending EPS beads of different densities and fly ash contents with cement as a binding agent. The effects of three different EPS bead densities (25, 30 and 35 kg/m3), four EPS mix ratios (0.5–2.0%) and two cement contents (15 and 20%) on density, compressive strength at three different curing periods, 7, 28 and 90 days; and elasticity modulus were studied. It was concluded that the behavior of FAGM prepared with low-density and low-content EPS is analogous to that of FAGM prepared with high-density and high-content EPS. To evaluate the performance of FAGM as a lightweight and strong material, an empirical ratio of strength to density is defined. FAGM with low-density and high-content EPS can be used as an efficient lightweight filling material, whereas FAGM with high-density and low-content EPS can be used as a strong filling material. Moreover, the geomaterial, which is mainly formed from a freely available industrial byproduct, can be strongly used as a replacement for EPS geofoam blocks.

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Effect of Expanded Polystyrene Particle Size on Engineering Properties of Clayey Soil

Cited by 3 publications

References 10 publications

The Potential of Mycofoam as a Biocomposite Material with Various Substrate and Mushroom Compositions

The Potential of Mycofoam as a Biocomposite Material with Various Substrate and Mushroom Compositions

A review on innovative approaches to expansive soil stabilization: Focussing on EPS beads, sand, and jute

Engineering performance of lightweight geomaterial influenced by EPS density and mix ratio

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