Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydration studies of calcium sulfoaluminate cements blended with fly ash
Abstract The main objective of this work is to study the hydration and properties of calcium sulfoaluminate cement pastes blended with fly ash (FA) and the corresponding mortars at different hydration ages. Laboratory X-ray powder diffraction, rheological studies, thermal analysis, porosimetry and compressive strength measurements were performed. The analysis of the diffraction data by Rietveld method allowed quantifying crystalline phases and overall amorphous contents. The studied parameters were: i) FA content, 0, 15 and 30wt.%; and ii) water addition, water-to-CSA mass ratio (w/CSA=0.50 and 0.65), and water-to-binder mass ratio (w/b=0.50). Finally, compressive strengths after 6months of 0 and 15wt.% FA [w/CSA=0.50] mortars were similar: 73±2 and 72±3MPa, respectively. This is justified by the filler effect of the FA as no strong evidences of reactivity of FA with CSA were observed. These results support the partial substitution of CSA cements with FA with the economic and environmental benefits.
Hydration studies of calcium sulfoaluminate cements blended with fly ash
Abstract The main objective of this work is to study the hydration and properties of calcium sulfoaluminate cement pastes blended with fly ash (FA) and the corresponding mortars at different hydration ages. Laboratory X-ray powder diffraction, rheological studies, thermal analysis, porosimetry and compressive strength measurements were performed. The analysis of the diffraction data by Rietveld method allowed quantifying crystalline phases and overall amorphous contents. The studied parameters were: i) FA content, 0, 15 and 30wt.%; and ii) water addition, water-to-CSA mass ratio (w/CSA=0.50 and 0.65), and water-to-binder mass ratio (w/b=0.50). Finally, compressive strengths after 6months of 0 and 15wt.% FA [w/CSA=0.50] mortars were similar: 73±2 and 72±3MPa, respectively. This is justified by the filler effect of the FA as no strong evidences of reactivity of FA with CSA were observed. These results support the partial substitution of CSA cements with FA with the economic and environmental benefits.
Hydration studies of calcium sulfoaluminate cements blended with fly ash
García-Maté, M. (Autor:in) / De la Torre, A.G. (Autor:in) / León-Reina, L. (Autor:in) / Aranda, M.A.G. (Autor:in) / Santacruz, I. (Autor:in)
Cement and Concrete Research ; 54 ; 12-20
04.07.2013
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Hydration studies of calcium sulfoaluminate cements blended with fly ash
| Online Contents | 2013
Hydration studies of calcium sulfoaluminate cements blended with fly ash
| British Library Online Contents | 2013
Hydration studies of calcium sulfoaluminate cements blended with fly ash
| Tema Archiv | 2013
A hydration study of various calcium sulfoaluminate cements
| Online Contents | 2014
A hydration study of various calcium sulfoaluminate cements
| Elsevier | 2014