A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hydraulic activity of water-cooled slag and air-cooled slag at different temperatures
Water-cooled slag (WS) and air-cooled slag (AS) with similar chemical compositions and produced from the same blast furnace were investigated for their hydraulic activities at different temperatures. The kinetics of hydration of WS-lime and AS-lime pastes were investigated at room temperature, 100 degree C, and 180 degree C by the determination of unreacted lime and combined water. The hydration products were identified by XRD. The variations in mechanical properties were correlated with the reaction kinetics and the types of the hydration products. The change in the mechanism of slag hydration was also predicted. The AS studied exhibited significant reactivity at room temperature. Increasing the temperature to 100 degree C has no significant effect on the reactivity of either type of slag except during early hydration. However, the reactivity of AS increased much more than WS with hydrothermal activation at 180 degree C. Calcium silicate hydrate (CSH) and plazolite formed in AS mixes. CSH, plazolite, and alpha-C2SH formed in WS mixes at 180 degree C.
Hydraulic activity of water-cooled slag and air-cooled slag at different temperatures
Water-cooled slag (WS) and air-cooled slag (AS) with similar chemical compositions and produced from the same blast furnace were investigated for their hydraulic activities at different temperatures. The kinetics of hydration of WS-lime and AS-lime pastes were investigated at room temperature, 100 degree C, and 180 degree C by the determination of unreacted lime and combined water. The hydration products were identified by XRD. The variations in mechanical properties were correlated with the reaction kinetics and the types of the hydration products. The change in the mechanism of slag hydration was also predicted. The AS studied exhibited significant reactivity at room temperature. Increasing the temperature to 100 degree C has no significant effect on the reactivity of either type of slag except during early hydration. However, the reactivity of AS increased much more than WS with hydrothermal activation at 180 degree C. Calcium silicate hydrate (CSH) and plazolite formed in AS mixes. CSH, plazolite, and alpha-C2SH formed in WS mixes at 180 degree C.
Hydraulic activity of water-cooled slag and air-cooled slag at different temperatures
Mostafa, N.Y. (author) / El-Hemaly, S.A.S. (author) / Al-Wakeel, E.I. (author) / El-Korashy, S.A. (author) / Brown, P.W. (author)
Cement and Concrete Research ; 31 ; 475-484
2001
10 Seiten, 27 Quellen
Article (Journal)
English
Hydraulic activity of water-cooled slag and air-cooled slag at different temperatures
| British Library Online Contents | 2001
Hydraulic activity of water-cooled slag and air-cooled slag at different temperatures
| Online Contents | 2001
Characterization and evaluation of the hydraulic activity of water-cooled slag and air-cooled slag
| British Library Online Contents | 2001
Characterization and evaluation of the hydraulic activity of water-cooled slag and air-cooled slag
| Online Contents | 2001