Dehydration Process of Calcium Silicate Hydrate during Heating in the Air

Abstract:

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Investigation on the continuous dehydration process of calcium silicate hydrate with C/S 1.5 during heating in the air was carried out. Results showed that the heating at 200°C of C-S-H resulted in decreasing basal spacing from 1.2 nm to 1.0 nm, and the basal spacing disappeared as the temperature raised to 400°C. Small amount of the dehydrated calcium silicate hydrate, portlandite and calcite were detectable in the heated sample at 400°C. The phases in the samples heated at 500°C and 650°C are β-C2S, quartz, and calcite. At 800°C and 900°C, α′-C2S, β-C2S, and quartz are main phases in the heated sample.

Info:

Periodical:

Advanced Materials Research (Volumes 287-290)

Edited by:

Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li

Pages:

785-788

DOI:

10.4028/www.scientific.net/AMR.287-290.785

Citation:

L. N. Lu et al., "Dehydration Process of Calcium Silicate Hydrate during Heating in the Air", Advanced Materials Research, Vols. 287-290, pp. 785-788, 2011

Online since:

July 2011

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Price:

$35.00

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