6. Supplementary setting for hydraulic and pozzolanic binders
6.1 Blast furnace slag activation
Blast furnace slag is a by-product of ironmaking. They are made up of iron ore and coke impurities, added fluxes and refractory wear products. They are calcium and magnesium silico-aluminates which, when rapidly cooled, retain their vitreous state, making them reactive in the same way as clinker, the main component of cement.
Vitrified slag is therefore a hydraulic binder which, when an activator such as lime (5 to 10% quicklime equivalent) is added, is capable of initiating setting and developing mechanical resistance. Lime's role is to raise the pH and initiate the solubilization of reactive slag components, followed by their crystallization.
Reaction kinetics are...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Supplementary setting for hydraulic and pozzolanic binders
Underground work
Article included in this offer
"Sustainable construction"
(
49 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
