Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microstructure of phenolic resin cement concrete
Studies on cement concrete microstructures are carried out in order to explain experimentally observed phenomenon and for constitutive modelling of concrete at the macroscopic level. Many investigations have already been conducted to investigate the structure property relationships before and after the addition of external agents to the cement concrete. This paper describes the study and analysis of the microstructures of phenolic resin cement concrete and their effect on the macroscopic properties. Resorcinol formaldehyde and m-cresol formaldehyde resins were used to form the composite. The cementatious phase of the cured phenolic resin cement concrete samples were etched and the resulting polymer network was analysed under a Scanning Electron Microscope. Thermal and chemical analyses of the phenolic resin cement concrete were also carried out to determine the interactions between the polymer and cement concrete phases and the extent of hydration after the addition of polymer into the composite network. Investigations on resorcinol formaldehyde cement concrete revealed that the interactions between resorcinol and the Ca(2+) ions in the cement concrete resulted in a strong chemical bond between the resin and the cement. The final composite had mechanical and chemical resistant properties far better than virgin cement.
Microstructure of phenolic resin cement concrete
Studies on cement concrete microstructures are carried out in order to explain experimentally observed phenomenon and for constitutive modelling of concrete at the macroscopic level. Many investigations have already been conducted to investigate the structure property relationships before and after the addition of external agents to the cement concrete. This paper describes the study and analysis of the microstructures of phenolic resin cement concrete and their effect on the macroscopic properties. Resorcinol formaldehyde and m-cresol formaldehyde resins were used to form the composite. The cementatious phase of the cured phenolic resin cement concrete samples were etched and the resulting polymer network was analysed under a Scanning Electron Microscope. Thermal and chemical analyses of the phenolic resin cement concrete were also carried out to determine the interactions between the polymer and cement concrete phases and the extent of hydration after the addition of polymer into the composite network. Investigations on resorcinol formaldehyde cement concrete revealed that the interactions between resorcinol and the Ca(2+) ions in the cement concrete resulted in a strong chemical bond between the resin and the cement. The final composite had mechanical and chemical resistant properties far better than virgin cement.
Microstructure of phenolic resin cement concrete
Mikrostruktur von Phenolharzzementbeton
Nair, P.S. (Autor:in) / Paul, A. (Autor:in)
2003
9 Seiten, 3 Bilder, 1 Tabelle, 7 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
MICROSTRUCTURE OF PHENOLIC RESIN CEMENT CONCRETE
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Preparation and Evaluation of Properties of Phenolic Resin Cement Concrete
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Studies on phenolic resin cement
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