Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Supercritical carbonation of calcium aluminate cement
AbstractThe microstructural changes occurring during supercritical carbonation (scCO2) of calcium aluminate cement (CAC) and changes to its strength have been investigated. Cylindrical specimens of CAC cured at different temperatures were prepared and then subjected to scCO2. It is shown that CAC carbonation in supercritical conditions is accelerated with a positive effect on the compressive strength. Due to the scCO2 treatment, both conversion and alkaline hydrolysis are avoided. The best behaviour of the studied specimens was attained for samples cured at 25 °C. The residual compounds after the scCO2 process, i.e. monocalcium aluminate, calcium carbonate and aluminium hydroxide are durable in normal ambient conditions. Complete carbonation of CAC is particularly important for the reinforcement of CAC with polymer fibres to improve its mechanical strength.
Supercritical carbonation of calcium aluminate cement
AbstractThe microstructural changes occurring during supercritical carbonation (scCO2) of calcium aluminate cement (CAC) and changes to its strength have been investigated. Cylindrical specimens of CAC cured at different temperatures were prepared and then subjected to scCO2. It is shown that CAC carbonation in supercritical conditions is accelerated with a positive effect on the compressive strength. Due to the scCO2 treatment, both conversion and alkaline hydrolysis are avoided. The best behaviour of the studied specimens was attained for samples cured at 25 °C. The residual compounds after the scCO2 process, i.e. monocalcium aluminate, calcium carbonate and aluminium hydroxide are durable in normal ambient conditions. Complete carbonation of CAC is particularly important for the reinforcement of CAC with polymer fibres to improve its mechanical strength.
Supercritical carbonation of calcium aluminate cement
Fernández-Carrasco, L. (Autor:in) / Rius, J. (Autor:in) / Miravitlles, Carles (Autor:in)
Cement and Concrete Research ; 38 ; 1033-1037
25.02.2008
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Supercritical carbonation of calcium aluminate cement
| Online Contents | 2008
Supercritical carbonation of calcium aluminate cement
| British Library Online Contents | 2008
Supercritical carbonation of calcium aluminate cement
| Online Contents | 2008
Accelerated Carbonation of Calcium Aluminate Cement Paste
| British Library Conference Proceedings | 2001