The influence of alumina reactivity on the hydration behaviour of mono calcium aluminate

✍ Scribed by Steffen Möhmel; Wolfgang Geβner

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 511 KB
• Volume: 101-103
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(97)00217-8

✦ Synopsis

The influence of alumina reactivity (specific surface area and Na,O content) on the hydration of mono calcium aluminate (CA) is investigated. It was found that additions of alumina influence the hydration behaviour of CA and lead also to differences in the microstructure of the hardened pastes. Besides the specific surface area and Na,O content, the reasons of these influences seem to be connected with the concentration of weak acid sites which obviously causes changes in the nucleation mechanism of the hydrates.