Effect of Molecular Weight of Long-Side-Chain of Polycarboxylic Acid Type Water-Reducer on Hydration of C3A

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Several polycarboxylic acid type water-reducing agents (PCs) with different side-chain structure have been synthesized. The effect of side-chain structure of PCs on hydration of C3A has been investigated by XRD, TG-DSC and SEM. The results show that PCs restrain hydration of C3A as a whole, but accelerate the transformation from C2AH8 to Al (OH) 3 and C3AH6; for structure of the PCs, the bigger molecular weight of long-side-chain of PCs is advantage to restrain hydration of C3A. And it also is better to formation of six-party flake hydrated products. But the little molecular weight of long-side-chain of PCs tends to form the cube-shaped hydrated products.

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Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

250-256

DOI:

10.4028/www.scientific.net/AMM.71-78.250

Citation:

H. B. Tan et al., "Effect of Molecular Weight of Long-Side-Chain of Polycarboxylic Acid Type Water-Reducer on Hydration of C3A", Applied Mechanics and Materials, Vols. 71-78, pp. 250-256, 2011

Online since:

July 2011

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$35.00

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