Long-term hydration of CaSiO4 with combined additions of silica fume, calcium sulpha aluminate and gypsum

Autor:	G. Sun, M. Mikoc, J. F. Young, M. Paljevic, B. Matkovic
Rok vydání:	1994
Předmět:	Cement Gypsum Materials science Silica fume Aluminate Mineralogy chemistry.chemical_element Building and Construction Calcium engineering.material Silicate chemistry.chemical_compound chemistry Chemical engineering engineering General Materials Science Curing (chemistry)
Zdroj:	Advances in Cement Research. 6:161-164
ISSN:	1751-7605 0951-7197
Popis:	Slow hydration of γ-C2S in mixtures of β and γ polymorphs was observed between 17 and 40 months of curing, but did not occur in the presence of silica fume. The detection of cross-linked silicate species by nuclear magnetic resonance (Q3) is attributed to the formation of silica gel because of the low effective CIS molar ratio in mixtures containing silica fume. The formation of ettringite from additons of C4A3S and gypsum prevents the hydration of β-C2S unless free lime is also present in the mixture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5119f46ec75235959f9ef8aa775d9a9f https://doi.org/10.1680/adcr.1994.6.24.161 Zobrazit plný text záznamu