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A platform for research: civil engineering, architecture and urbanism
Portland-zeolite-cement for minimizing alkali-aggregate expansion
AbstractThe Authors give an account of the performance modifications induced in the blended cements by replacing the typical pozzolanas with their zeolitic counterparts: volcanic tuffs, after suitable grinding. The advantages of such a replacement in terms of minimization of alkali aggregate expansion and of strengths increase long ages are discussed, emphasizing also the favourable influence of expansion abatement supplied by a previous thermal treatment of the zeolitic addition. The improved strength progress is interpretated in terms of a higher reactivity of the zeolite minerals in comparison with that of the pozzolanic glass and the expansion abatement in terms of ability to incorporate high alkali amounts showed by the abudant amorphous hydrated sil cate.
Portland-zeolite-cement for minimizing alkali-aggregate expansion
AbstractThe Authors give an account of the performance modifications induced in the blended cements by replacing the typical pozzolanas with their zeolitic counterparts: volcanic tuffs, after suitable grinding. The advantages of such a replacement in terms of minimization of alkali aggregate expansion and of strengths increase long ages are discussed, emphasizing also the favourable influence of expansion abatement supplied by a previous thermal treatment of the zeolitic addition. The improved strength progress is interpretated in terms of a higher reactivity of the zeolite minerals in comparison with that of the pozzolanic glass and the expansion abatement in terms of ability to incorporate high alkali amounts showed by the abudant amorphous hydrated sil cate.
Portland-zeolite-cement for minimizing alkali-aggregate expansion
Sersale, R. (author) / Prigione, G. (author)
Cement and Concrete Research ; 17 ; 404-410
1987-01-13
7 pages
Article (Journal)
Electronic Resource
English
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