A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
AbstractHydrates which form during the setting of calcium hydroxide-activated metakaolinite cements are essentially hydrated gehlenite C2ASH8 and CSHI with small quantities of C4-AH13. Investigations on metakaolinite obtained by calcination of three different raw-kaolinites show that the content of CSHI in the cement at 28 days, thus the formation rate of this hydrate, depends on the mineralogical characteristics of the raw-kaolinite (grain size, nature of impurities, and chiefly crystallization state). In another hand, for a given Water/Cement ratio, it is pointed out that the higher the CSHI content in the material after hardening, the higher the compressive strengths.
AbstractHydrates which form during the setting of calcium hydroxide-activated metakaolinite cements are essentially hydrated gehlenite C2ASH8 and CSHI with small quantities of C4-AH13. Investigations on metakaolinite obtained by calcination of three different raw-kaolinites show that the content of CSHI in the cement at 28 days, thus the formation rate of this hydrate, depends on the mineralogical characteristics of the raw-kaolinite (grain size, nature of impurities, and chiefly crystallization state). In another hand, for a given Water/Cement ratio, it is pointed out that the higher the CSHI content in the material after hardening, the higher the compressive strengths.
Hydration reaction and hardening of calcined clays and related minerals.
II. Influence of mineralogical properties of the raw-kaolinite on the reactivity of metakaolinite
Murat, M. (author)
Cement and Concrete Research ; 13 ; 511-518
1982-12-10
8 pages
Article (Journal)
Electronic Resource
English
Kaolinitic calcined clays – Portland cement system: Hydration and properties
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