A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
AbstractCompressive strengths of calcium hydroxide-activated metakaolinite cements have been studied versus both calcination process of kaolinite (use of fixed-bed and stirredbed - or rotary kiln- Laboratory reactors) and calcination temperature. Whatever the curing time from 7 days to 90 days, a maximum of strength is observed for calcination in the 700–850°C temperature range, but metakaolinite obtained in rotary kiln (process which realizes the dehydration of kaolinite in a shorter time, but can lead to a phenomenon of particle aggregation on the furnace wall) is less disordered and strengths of cements derived there from are some weaker than in the case of cements made with metakaolinite from fixed-bed calcination.
AbstractCompressive strengths of calcium hydroxide-activated metakaolinite cements have been studied versus both calcination process of kaolinite (use of fixed-bed and stirredbed - or rotary kiln- Laboratory reactors) and calcination temperature. Whatever the curing time from 7 days to 90 days, a maximum of strength is observed for calcination in the 700–850°C temperature range, but metakaolinite obtained in rotary kiln (process which realizes the dehydration of kaolinite in a shorter time, but can lead to a phenomenon of particle aggregation on the furnace wall) is less disordered and strengths of cements derived there from are some weaker than in the case of cements made with metakaolinite from fixed-bed calcination.
Hydration reaction and hardening of calcined clays and related minerals III. Influence of calcination process of kaolinite on mechanical strengths of hardened metakaolinite
Cement and Concrete Research ; 13 ; 631-637
1982-12-10
7 pages
Article (Journal)
Electronic Resource
English
Hydration reaction and hardening of calcined clays and related minerals.
| Elsevier | 1982