Characterization of Lightweight Concrete Produced from Plastics Waste - Polystyrene and EVA

Gregorová, Valéria; Unčík, Stanislav

doi:10.4028/www.scientific.net/amm.861.24

Cited by 4 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was accomplished by subjecting recycled waste plastic flakes to safe gamma radiation doses before grinding them into a soft powder. Additionally, their findings demonstrated that using this practical idea would be environmentally beneficial due to the fact that manufacturing concrete is responsible for 4.5% of global carbon dioxide emissions, Schaefer et al [71]; Gregorova and Unčík [72]; Morsy and Jailany [73]; Li and Chen [74]; Maghfouri et al [75].…”

Section: Impacts Of Recycled Nanoplastics On Concrete's Mechanical Pr...mentioning

confidence: 99%

Investigating the Mechanical and Thermal Properties of Concrete with Recycled Nanoplastics for Enhanced Sustainability

Jassam,

Usman,

Hayder

et al. 2023

ACSM

View full text Add to dashboard Cite

Over recent decades, the concrete industry has experienced significant advancements, including the incorporation of recycled waste materials to enhance sustainability and various properties. However, the current literature lacks comprehensive investigations regarding the critical contributions and benefits of Nanoplastics (NPs) in improving concrete's mechanical and thermal properties, such as tensile strength, compressive strength, splitting strength, and thermal characteristics, including thermal stability and insulation. This study aims to investigate the valuable effects of integrating waste materials, particularly NPs, into concrete and to elucidate the impact of NPs on concrete's mechanical and thermal properties. Furthermore, this paper seeks to highlight the positive environmental implications of using NPs in concrete. A comprehensive literature review was conducted to address these aspects and achieve the research objectives. Academic peer-reviewed articles and recently published papers were examined to discuss the practicality and various essential benefits of incorporating NPs into the concrete mix. The review revealed that the use of NPs in concrete leads to improvements in mechanical properties, such as shrinkage, splitting tensile strength, compressive strength, shear resistance, and flexural strength. Simultaneously, the substitution of various NP ratios in concrete enhances thermal resistance, contributing to more energy-efficient structures due to the substantial thermal insulation provided by the plastic incorporation. With respect to environmental aspects, employing waste materials renders the concrete more sustainable, eco-friendly, and cost-effective compared to conventional concrete. Based on the thorough review conducted, which demonstrated the advantageous effects of NPs on concrete performance concerning mechanical, thermal, and ecological measures, it is crucial to expand the available literature on the beneficial evaluations of NPs' contributions to the efficacy and practicality of the concrete mix.

show abstract

Section: Impacts Of Recycled Nanoplastics On Concrete's Mechanical Pr...mentioning

confidence: 99%

Investigating the Mechanical and Thermal Properties of Concrete with Recycled Nanoplastics for Enhanced Sustainability

Jassam,

Usman,

Hayder

et al. 2023

ACSM

View full text Add to dashboard Cite

show abstract

“…Mechanical recycling might be the most commonly used recovery method for post-consumer shoes because of its low cost, simple recycling process, low energy consumption, and wide applicability. By simple cutting, ESW with a relatively large average size, e.g., 3–4 mm, from the footwear industry could be used as a lightweight aggregate substitute in lightweight concrete or mortar. − For example, Dulsang et al prepared lightweight concrete with good mechanical and chemical attack-resistant characteristics by using EVA waste with an average size of 4.5 mm instead of the normal aggregate. Others focused on reusing ESW via blending it with other polymer materials, such as rubber, EVA, etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Sustainable Composite Foam from Ethylene Vinyl Acetate-Based Sole Waste via Solid-State Shear Milling and Supercritical Carbon Dioxide Foaming Technologies

Guo,

Liu,

Yang

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Ethylene vinyl acetate (EVA)-based foam has been widely used in the footwear industry, but high-value recycling of EVA-based sole waste (ESW) is still a big challenge, due to its cross-linked structure or complex component. Herein, a facile route to reuse ESW was developed, i.e., adopting solid-state shear milling (S3M) technology to realize the surface-activation and partially de-crosslinking of ESW and then blending ESW active powders (ESW-aps) with thermoplastic polyurethane (TPU) to prepare a TPU/ESW composite foam with good resilience via supercritical carbon dioxide (ScCO2) foaming technology. After 20 milling cycles, ESW-aps with 11.6% reduction in cross-linked chains and an average particle size of ∼400 μm were obtained. This greatly improved the hydrogen bonding between the carbonyl groups of ESW-aps and the amino groups of TPU, so endowed ESW-aps with good dispersion in the TPU matrix. The addition of ESW-aps enhanced the carbon dioxide (CO2) solubility and appropriately reduced the complex modulus of the system, leading to better foaming performance and cell structure of TPU/ESW composite foam. Compared with TPU foam with 20 wt % ESW, the residual strain of the foam with the same content of ESW-aps decreased from 6.8 to 3.6%, close to that of pure TPU foam (3.5%), indicating its potential application in the fields of foamed soles.

show abstract

“…It contributed to the impact noise attenuation and reduced the actual specific weight of the subfloor, creating a lighter structural system. Another study used EVA waste from the footwear industry to produce lightweight concrete, demonstrating remarkable results in thermal conductivity, chemical resistance, and water absorption compared to other lightweight concrete containing other polymers [8,9]. EVA wastes' granulometry effects on the mortar as a natural aggregate substitute were also investigated [2].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Ethylene-Vinyl Acetate (EVA) Waste from Footwear Industry as Partial Replacement of Aggregates for Concrete Roof Tile

Lacsado,

Batawan,

Apalacio

et al. 2023

KEM

View full text Add to dashboard Cite

Scraps of Ethylene-Vinyl Acetate (EVA) foams from cutting out shoe soles are a waste produced by the footwear industry, and the recycling of these thermosetting materials is quite expensive and requires distinct procedures. Hence, an upcycling route to turn such waste into valuable material, such as utilizing it as a partial aggregate replacement in the production of concrete roof tile, was explored. This paper aims to investigate the effects of EVA on the bulk density, water absorption, thermal properties, water permeability, and transverse breaking strength of the concrete roof tile. The weight percentages of replaced natural aggregates in the concrete roof tile mixture are 5%, 7.5%, and 10%. The concrete roof tile with EVA aggregates demonstrated a lighter weight but higher water absorption. Also, its thermal conductivity presents promising results as it lessens the heat transfer compared to conventional concrete roof tiles. Moreover, the incorporation of EVA also positively affects the concrete roof tile's water permeability as it can hold the water longer than those without EVA. Finally, the transverse breaking strength of the concrete roof tiles with EVA contents resulted little or no difference compared to the conventional concrete roof tile.

show abstract

Characterization of Lightweight Concrete Produced from Plastics Waste - Polystyrene and EVA

Cited by 4 publications

References 15 publications

Investigating the Mechanical and Thermal Properties of Concrete with Recycled Nanoplastics for Enhanced Sustainability

Investigating the Mechanical and Thermal Properties of Concrete with Recycled Nanoplastics for Enhanced Sustainability

Fabrication of Sustainable Composite Foam from Ethylene Vinyl Acetate-Based Sole Waste via Solid-State Shear Milling and Supercritical Carbon Dioxide Foaming Technologies

Utilization of Ethylene-Vinyl Acetate (EVA) Waste from Footwear Industry as Partial Replacement of Aggregates for Concrete Roof Tile

Contact Info

Product

Resources

About