Dune sand and pumice impact on mechanical and thermal lightweight concrete properties

Amel, Chaabane Lynda; Kadri, El-Hadj; Sebaibi, Yahya; Soualhi, Hamza

doi:10.1016/j.conbuildmat.2016.12.043

Cited by 63 publications

(15 citation statements)

References 19 publications

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“…Moreover, there is significant research work on using wastes as substitution material of fine aggregate [22,23] in concrete, in an attempt to further promote sustainability. In this context, run of mine (Pe) perlite, a raw perlite stream of 0-2 mm or 0-4 mm grade which it rejected as a waste from the perlite expansion process, could substitute fine aggregates in concrete.…”

Section: Introductionmentioning

confidence: 99%

Durability of Structural Lightweight Concrete Containing Different Types of Natural or Artificial Lightweight Aggregates

Badogiannis

Stratoura

Aspiotis

et al. 2021

CMD

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Different structural lightweight concrete mixtures of specific density and strength classes were produced by using various lightweight aggregates (LWAs) such as pumice, perlite, and rice husk ash. Their properties were evaluated in fresh and hardened states with regards to compressive strength and durability parameters such as water absorption (open porosity and capillary absorption), chloride’s penetration resistance, and carbonation depth. According to the results, most LWA concrete mixtures performed satisfactorily in terms of the designed strength and density and they could be used as structural LWA concrete mixtures. As far as the durability of LWA concrete was concerned, open porosity and resistance to the carbonation of LWA concrete were burdened with the porous nature of LWAs, while sorptivity in some mixtures and especially chlorides’ penetration resistance in all mixtures were reported to be significantly improved. The overall strength and durability performance of the designed LWA concrete mixtures could mitigate the concerns stemming from its vulnerability to extreme exposure conditions.

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Section: Introductionmentioning

confidence: 99%

Durability of Structural Lightweight Concrete Containing Different Types of Natural or Artificial Lightweight Aggregates

Badogiannis

Stratoura

Aspiotis

et al. 2021

CMD

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“…From this fundamental idea on concrete's structure one can easily assess the reason for fall in compressive strength of EPS and EV concretes is due to the substitution of porous lightweight EPS and EV aggregates in place of denser normal weight aggregates. This was manifested in many researches 42,60,64–67 . The expansion process in EPS and exfoliation in EV results in porous nature, thereby resulting in a lesser dense and lower strength aggregates 68 .…”

Section: Resultsmentioning

confidence: 99%

Investigations on mechanical and thermal properties of concrete with different proportions of insulation aggregates

Kumar

2020

Structural Concrete

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Investigation of mechanical properties and thermal behavior of expanded polystyrene concrete (EPS) and exfoliated vermiculite (EV) concrete has been accomplished in this research. It includes how EPS concrete is prepared by substituting the coarse aggregate with 0, 10, 15, and 20% with EPS aggregates. Similarly, EV concrete is prepared by replacing the fine aggregates with 0, 15, 45, and 60% with EV aggregates. The influence of EPS and EV proportion on mechanical and thermal properties was detected. Thermal properties were studied with an adiabatic box technique. Clear improvement in thermal behavior was observed in comparison with normal concrete and reduction in compressive strength was observed for an appreciable increase in the amount of EPS and EV. Also, the properties like split tensile strength, load–deflection curves, and durability properties of the EPS and EV concretes were experimented.

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“…Pedra-pomes é rica em sílica alcalina e tem um conteúdo significativo de sulfônio. É um tipo de agregado poroso e leve, possui um valor de massa específica em torno de 900 kg/m3 (LYNDA AMEL et al, 2017).…”

Section: Tipos De Agregados Levesunclassified

“…A substituição de agregados tradicionais por agregados leves, incluem os agregados leves naturais, que são as pedra-pomes e escórias vulcânicas, e os artificiais, como a argila expandida, vermiculita, escória expandida e a perlita (ABDEEN;HODHOD, 2010;LYNDA AMEL et al, 2017;SENGUL et al, 2011;TCHAMDJOU et al, 2017). Precisa-se conhecer melhor as características dos agregados leves para que possam ser utilizados, principalmente, devido à sua maior porosidade que limita a resistência obtida pelo concreto.…”

Section: Introductionunclassified

Estudo Sobre O Desempenho Mecânico E Térmico De Concretos Produzidos Com Diferentes Tipos De Agregados Leves: Uma Revisão / Study on the Mechanical and Thermal Performance of Concretes Produced With Different Types of Lightweight Aggregates: A Review

Farias

2021

BJD

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Diferente do concreto convencional, os concretos leves possuem uma maior porosidade devido aos tipos de agregados que são utilizados. Por sua vez, os agregados leves influenciam diretamente nas propriedades dos concretos, devido à sua baixa massa específica, baixa resistência, baixo módulo de elasticidade, alta absorção de água e porosidade. Como consequência, há uma redução na resistência à compressão, resistência à tração e no módulo de elasticidade dos concretos leves. No entanto, as suas vantagens de utilização podem sobressair tais desvantagens, estudos comprovam que os concretos leves possuem uma excelente absorção acústica e isolamento térmico. Portanto, com uma baixa condutividade térmica, o concreto leve possui uma alta absorção de calor, possibilitando tornar o ambiente mais confortável, além de ocasionar um gasto menor de energia. O que proporciona importante destaque, afinal os custos com resfriamento e/ou aquecimento de um edifício ocupam uma grande parcela nos pré-requisitos de uma construção.

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Dune sand and pumice impact on mechanical and thermal lightweight concrete properties

Cited by 63 publications

References 19 publications

Durability of Structural Lightweight Concrete Containing Different Types of Natural or Artificial Lightweight Aggregates

Durability of Structural Lightweight Concrete Containing Different Types of Natural or Artificial Lightweight Aggregates

Investigations on mechanical and thermal properties of concrete with different proportions of insulation aggregates

Estudo Sobre O Desempenho Mecânico E Térmico De Concretos Produzidos Com Diferentes Tipos De Agregados Leves: Uma Revisão / Study on the Mechanical and Thermal Performance of Concretes Produced With Different Types of Lightweight Aggregates: A Review

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