Characteristics of concrete containing EPS

Khatib, Jamal; Herki, B.A.; Elkordi, Adel

doi:10.1016/b978-0-08-102676-2.00007-4

Cited by 37 publications

(27 citation statements)

References 63 publications

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“…Expanded polystyrene (EPS) is normally used as a packaging material due to its low density, hydrophobic properties, good thermal insulation, low absorption, and low cost. The yearly global production of polystyrene is over fourteen million tons and a very significant quantity of EPS ends up as waste materials that are sent to landfills, which are of limited space [1,2]. EPS concrete is increasingly being used in various applications in the construction industry and other industries mainly due to its lightweight, excellent heat preservation and sound insulation [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, there is a difference between the failure pattern and the interfacial transition zone (ITZ) for EPS concrete in comparison with normal weight concrete. Unlike EPS concrete, failure of normal weight concretes occurs around the aggregate particles because the tensile strength of aggregates is higher than that of the surrounding cement paste [2]. Because of the low bond between the EPS and the cement paste, and hydrophobic nature and low mechanical strength of EPS beads, there is a significant decrease in the compressive strength of EPS concretes [7,10,11].…”

Section: Introductionmentioning

confidence: 99%

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Ultra-Lightweight EPS Concrete: Mixing Procedure and Predictive Models for Compressive Strength

Moutassem¹

2020

cea

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Expanded polystyrene (EPS) lightweight concrete is increasingly used in various applications due to its lightweight, excellent heat preservation, sound insulation and energy absorbing characteristics. However, due to the hydrophobic nature and very low density of EPS beads, EPS concretes are prone to segregation, poor bonding, and homogeneity issues. The properties of EPS concrete are highly dependent on the mixture proportions and mixing procedure. This study involves the development of a quality mixing procedure for Ultra-lightweight EPS concrete and the development of two predictive compressive strength models function of concrete mixture and density, respectively. An experimental program is developed to implement the mixing procedure and to calibrate and evaluate the accuracy of the models. The proposed models were found to accurately predict the strength of concrete mixtures. The corresponding standard error for the models is less than 0.3 MPa and the corresponding correlation coefficient is greater than 0.93. To ensure quality control before concrete is cast, a link between the plastic density of fresh concrete and the compressive strength was established. Furthermore, to accommodate tight construction schedules, the effects of concrete age on the compressive strength development were studied and the 28-day strength was related to strengths at early ages.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultra-Lightweight EPS Concrete: Mixing Procedure and Predictive Models for Compressive Strength

Moutassem¹

2020

cea

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“…E a utilização desses recursos naturais gera elevada degradação ao meio ambiente, o que tem motivado as pesquisas por materiais reciclados e alternativos para substituir os agregados. Esse uso de materiais alternativos reduz a demanda por recursos naturais, assim como a quantidade de resíduos depositados em aterros [1].…”

Section: Introductionunclassified

“…O poliestireno expandido é um material inerte de natureza hidrofóbica que tende a segregar em concretos ou argamassas [1]. Para evitar que ocorra essa segregação, pesquisas anteriores mostraram que o uso de sílica ativa e superplastificante melhorou a zona de transição entre o agregado leve e a pasta, assim como proporcionou uma melhor distribuição ao longo da argamassa [2,3].…”

Section: Introductionunclassified

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Absorção de água em argamassa leve com a incorporação de poliestireno expandido

et al. 2020

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Este artigo apresenta o efeito da incorporação do poliestireno expandido (EPS) na resistência e durabilidade de argamassas leves. Foram investigadas as propriedades de durabilidade, por meio dos ensaios de absorção por capilaridade e absorção de água por imersão. No estado endurecido, analisou-se também a resistência à compressão e a densidade de massa. Para isso, produziu-se argamassas com traços de cimento/areia de 1:4,5, 1:5 e 1:6 e com teores de incorporação de EPS 0%, 20% e 30%, em volume. Os resultados demonstram que as argamassas leves com EPS apresentam melhores propriedades de durabilidade que as argamassas convencionais, uma vez que obtiveram menor absorção de água comparadas as de referência. Por outro lado, essas argamassas possuem resistência à compressão inferior as tradicionais.

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Use of EPS Based Light-Weight Concrete Panels as a Roof Insulation Material for NERD Slab System

Meddage

Jayasinghe

2021

Lecture Notes in Civil Engineering

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Characteristics of concrete containing EPS

Cited by 37 publications

References 63 publications

Ultra-Lightweight EPS Concrete: Mixing Procedure and Predictive Models for Compressive Strength

Ultra-Lightweight EPS Concrete: Mixing Procedure and Predictive Models for Compressive Strength

Absorção de água em argamassa leve com a incorporação de poliestireno expandido

Use of EPS Based Light-Weight Concrete Panels as a Roof Insulation Material for NERD Slab System

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