Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alkali-activated slag cements: Kinetic studies
The alkaline activation of blast furnace slag is a complex process where the destruction of the slag structure is firstly produced and subsequently a policondensation-crystallization of reaction products occurs. AAS (alkaline activated slag) cements and concretes have many advantages over ordinary portland cement. Some of these advantages are high strengths, low production cost and good durability. The kinetics of hydration of AAS have been studied for different temperatures. The alkaline activator used was a mix of water-glass and NaOH solution. The degree of reaction was determined by means of the heat of hydration after the induction period. The reaction mechanism determined for AAS pastes was a diffusion mechanism and their activation energy was 57.6 KJ/mol.
Alkali-activated slag cements: Kinetic studies
The alkaline activation of blast furnace slag is a complex process where the destruction of the slag structure is firstly produced and subsequently a policondensation-crystallization of reaction products occurs. AAS (alkaline activated slag) cements and concretes have many advantages over ordinary portland cement. Some of these advantages are high strengths, low production cost and good durability. The kinetics of hydration of AAS have been studied for different temperatures. The alkaline activator used was a mix of water-glass and NaOH solution. The degree of reaction was determined by means of the heat of hydration after the induction period. The reaction mechanism determined for AAS pastes was a diffusion mechanism and their activation energy was 57.6 KJ/mol.
Alkali-activated slag cements: Kinetic studies
Kinetische Untersuchungen von alkaliaktivierten Schlackenzementen
Fernandez-Jimenez, A. (Autor:in) / Puertas, F. (Autor:in)
Cement and Concrete Research ; 27 ; 359-368
1997
10 Seiten, 5 Bilder, 4 Tabellen, 17 Quellen
Aufsatz (Zeitschrift)
Englisch
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