Betão leve OPS reforçado com fibra de polipropileno

Betão leve OPS reforçado com fibra de polipropileno

Lip Huat Saw / Ming Chian Yew / Ming Kun Yew

43,69 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Ciencia, ingeniería y tecnología medioambientales
ISBN:
9786207851263
43,69 €
IVA incluido
Disponible

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A casca de óleo de palma (OPS) é um recurso renovável obtido a partir de produtos finais sólidos agrícolas após a extração do óleo de palma. Foi investigado um estudo sobre a preparação de betão leve (LWC) utilizando com e sem agregado OPS tratado termicamente. A fibra de polipropileno de alto desempenho (PPTBF) foi incorporada neste OPSC em diferentes fracções de volume (Vf) (0, 0,25, 0,5, 0,75 e 1%). O desempenho do OPSC com e sem misturas de betão reforçado com fibras de OPS tratadas termicamente (OPSFRC) foi avaliado através da realização de uma série de ensaios exaustivos. Foram descritas as propriedades frescas e mecânicas destas misturas de betão, tais como o slump, o Vebe, a densidade, a resistência à compressão, a resistência à tração, o módulo de elasticidade (E) e o comportamento tensão-deformação. Foram efectuados ensaios de penetração rápida de cloretos (RCPT), de medição da porosidade, de absorção de água e de retração por secagem, com o objetivo de verificar os efeitos do OPSFRC tratado termicamente na durabilidade. O uso de PPTBF induziu o benefício de reduzir a permeabilidade e a porosidade capilar e a absorção de água por efeito de bloqueio dos poros. Concluiu-se também que a quantidade óptima de PPTBF é de 0,5% Vf.

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Otros libros del autor

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  • Calcestruzzo leggero OPS rinforzato con fibra di polipropilene
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