A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alkali-Activated Slag Cement Concrete
A few recent studies indicate that the hydration kinetics of activated slag cement are quite different and are significantly affected by the activator and the curing temperature.8-10 Figure 1 illustrates the hydration kinetics of portland cement and activated slag cement.10 Sodium silicate-activated slag cement reacts in three stages: wetting of slag particles, gelation of the activator, and bulk reaction product formation.10,15 Increased silica tends to retard hydration, while higher temperatures accelerate it.10,15,16 The heat of hydration is about half that of portland cement.10 Meanwhile, sodium hydroxide-activated slag cement reacts very quickly. [...]while traditional water-reducing admixtures have proven ineffective at high pH, air-entraining admixtures have been shown to improve the rheology of AASCC.11,28 Volumetric stability Another barrier to practical application is the poor volumetric stability of AASCC.
Alkali-Activated Slag Cement Concrete
A few recent studies indicate that the hydration kinetics of activated slag cement are quite different and are significantly affected by the activator and the curing temperature.8-10 Figure 1 illustrates the hydration kinetics of portland cement and activated slag cement.10 Sodium silicate-activated slag cement reacts in three stages: wetting of slag particles, gelation of the activator, and bulk reaction product formation.10,15 Increased silica tends to retard hydration, while higher temperatures accelerate it.10,15,16 The heat of hydration is about half that of portland cement.10 Meanwhile, sodium hydroxide-activated slag cement reacts very quickly. [...]while traditional water-reducing admixtures have proven ineffective at high pH, air-entraining admixtures have been shown to improve the rheology of AASCC.11,28 Volumetric stability Another barrier to practical application is the poor volumetric stability of AASCC.
Alkali-Activated Slag Cement Concrete
Robert J Thomas (author) / Hailong Ye / Aleksandra Radlinska / Sulapha Peethamparan
2016
Article (Journal)
English
Function gradient concrete based on alkali-activated slag and Portland cement
| European Patent Office | 2021
Hydration Products of Alkali Activated Slag Cement
| Online Contents | 1995