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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of short-term degradation on coir in natural fibre-cement composites
https://orcid.org/0000-0002-7640-1068
Highlights Alkalinity of cement is not a determining factor in natural fibre degradation. Hemicellulose readily dissolves in the cement pore solution. Cellulose and lignin are persistent at the pH level of the cement pore solution. Tensile strength remains unaffected due to persistence of structural components. Degradation in cementitious products is caused by alternative mechanisms.
Abstract Natural fibres are regarded as a potential bio-based alternative to traditional fibre material used in cement-based composites. A well-known complication of natural fibres is their instability the alkaline cement environment, which causes degradation. This work presents a study of mechanical performance, microstructure, and composition of coir fibres exposed to alkalinity, focusing on short-term degradation mechanisms of degradation. Fibre performance was found to be unrelated to the alkalinity of the medium and only hemicellulose was found to readily degrade in a highly alkaline environment. It was therefore concluded that alkaline hydrolysis is not the main factor involved in natural fibre degradation.
Influence of short-term degradation on coir in natural fibre-cement composites
https://orcid.org/0000-0002-7640-1068
Highlights Alkalinity of cement is not a determining factor in natural fibre degradation. Hemicellulose readily dissolves in the cement pore solution. Cellulose and lignin are persistent at the pH level of the cement pore solution. Tensile strength remains unaffected due to persistence of structural components. Degradation in cementitious products is caused by alternative mechanisms.
Abstract Natural fibres are regarded as a potential bio-based alternative to traditional fibre material used in cement-based composites. A well-known complication of natural fibres is their instability the alkaline cement environment, which causes degradation. This work presents a study of mechanical performance, microstructure, and composition of coir fibres exposed to alkalinity, focusing on short-term degradation mechanisms of degradation. Fibre performance was found to be unrelated to the alkalinity of the medium and only hemicellulose was found to readily degrade in a highly alkaline environment. It was therefore concluded that alkaline hydrolysis is not the main factor involved in natural fibre degradation.
Influence of short-term degradation on coir in natural fibre-cement composites
https://orcid.org/0000-0002-7640-1068
Highlights Alkalinity of cement is not a determining factor in natural fibre degradation. Hemicellulose readily dissolves in the cement pore solution. Cellulose and lignin are persistent at the pH level of the cement pore solution. Tensile strength remains unaffected due to persistence of structural components. Degradation in cementitious products is caused by alternative mechanisms.
Abstract Natural fibres are regarded as a potential bio-based alternative to traditional fibre material used in cement-based composites. A well-known complication of natural fibres is their instability the alkaline cement environment, which causes degradation. This work presents a study of mechanical performance, microstructure, and composition of coir fibres exposed to alkalinity, focusing on short-term degradation mechanisms of degradation. Fibre performance was found to be unrelated to the alkalinity of the medium and only hemicellulose was found to readily degrade in a highly alkaline environment. It was therefore concluded that alkaline hydrolysis is not the main factor involved in natural fibre degradation.
Influence of short-term degradation on coir in natural fibre-cement composites
Stapper, J.L. (Autor:in) / Gauvin, F. (Autor:in) / Brouwers, H.J.H. (Autor:in)
10.09.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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