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A platform for research: civil engineering, architecture and urbanism
Microstructural investigations on aerated concrete
Aerated concrete is characterized by the presence of large voids deliberately included in its matrix to reduce the density. This study reports the investigations conducted on the structure of cement-based autoclaved aerated concrete (AAC) and non-AAC with sand or fly ash as the filler. The reasons for changes in compressive strength and drying shrinkage are explained with reference to the changes in the microstructure. Compositional analysis was carried out using XRD. It was observed that fly ash responds poorly to autoclaving. The process of pore refinement in fly ash mixes is discussed with reference to be formation of Hadley grains as well as fly ash hydration. The paste-void interface in aerated concrete investigated in relation to the paste-aggregate interface in normal concrete revealed the existence of an interfacial transition zone.
Microstructural investigations on aerated concrete
Aerated concrete is characterized by the presence of large voids deliberately included in its matrix to reduce the density. This study reports the investigations conducted on the structure of cement-based autoclaved aerated concrete (AAC) and non-AAC with sand or fly ash as the filler. The reasons for changes in compressive strength and drying shrinkage are explained with reference to the changes in the microstructure. Compositional analysis was carried out using XRD. It was observed that fly ash responds poorly to autoclaving. The process of pore refinement in fly ash mixes is discussed with reference to be formation of Hadley grains as well as fly ash hydration. The paste-void interface in aerated concrete investigated in relation to the paste-aggregate interface in normal concrete revealed the existence of an interfacial transition zone.
Microstructural investigations on aerated concrete
Untersuchung des Mikrogefüges von Luftporenbeton
Narayanan, N. (author) / Ramamurthy, K. (author)
Cement and Concrete Research ; 30 ; 457-464
2000
8 Seiten, 16 Quellen
Article (Journal)
English
Mikrostruktur , Dichte (Masse) , Zement , Füllstoff , Druckfestigkeit , Röntgenbeugung , Röntgenanalyse , Flugasche , Hydratisieren , Grenzfläche , Rasterelektronenmikroskopie , Trockenschwindung , Autoklavierung , anorganische Verbindung , poröser Werkstoff , Porosität , Grenzflächenverhalten , Porengröße
Microstructural investigations on aerated concrete
| British Library Online Contents | 2000
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