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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Structure of III-crystallized Calcium Hydrogen Silicates. IV. Anion Composition of the Hydration Products of Tricalcium SilicateOn the hydration of tricalcium silicate at 2-80°C calcium hydrogen silicates (C—S—H-phases) are formed. The mean degree of condensation of which increases with increasing temperature. The primary product of hydration is monosilicate. It condenses at 2°C to disilicate. At higher temperatures, especially at 80°C, a C—S—H-phase is formed, consisting of di- and polysilicate. These phases are compared with the former described C—S—H(di) [1] and C—S—H(di, poly) [2, 3]. The amount of low molecular cyclic silicate anions in the C—S—H-phases is lower than 1%.
    Notes: Bei der Hydratation von Tricalciumsilicat bei 2-80°C entstehen Calcium-hydrogensilicate (C—S—H-Phasen), deren mittlerer Kondensationsgrad mit zunehmender Bildungstemperatur ansteigt. Als Primärprodukt der Hydratation wird Monosilicat gebildet, das bei 2°C z. T. zu Disilicat kondensiert. Bei höheren Temperaturen, insbesondere bei 80°C, entsteht eine C—S—H-Phase, die aus Di- und Polysilicat aufgebaut ist. Diese Phasen werden mit dem auf anderen Wegen dargestellten C—S—H(Di) [1] und C—S—H(Di, Poly) [2, 3] verglichen. Niedermolekulare cyclische Silicatanionen entstehen bei der Hydratation des Ca3SiO5 praktisch nicht.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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