Hydration Characteristics and Hydration Products of Tricalcium Silicate Doped with Superplasticizer and Silica Fume

Abstract:

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By using XRD, isothermal microcalorimetry, ESEM, EDS, NMR, the effects silica fume and polycarboxylate superplasticizer (PC) on the hydration behavior of tricalcium silicate (C3S) paste were researched. The results show that: PC suppresses the hydration of C3S while silica fume promotes the hydration of C3S by consumption of generated Ca(OH)2. Both PC and silica fume change the morphology of hydration products C-S-H gel from needle-bar-like to reunion-like, along with the polymerization state of silicon-oxygen tetrahedron varied greatly. Especially silica fume significantly affects Q1, Q2 percentage of silicon-oxygen tetrahedron.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2589-2594

DOI:

10.4028/www.scientific.net/AMR.233-235.2589

Citation:

Q. J. Ding et al., "Hydration Characteristics and Hydration Products of Tricalcium Silicate Doped with Superplasticizer and Silica Fume", Advanced Materials Research, Vols. 233-235, pp. 2589-2594, 2011

Online since:

May 2011

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Price:

$35.00

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