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


Article Preview

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.



Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen






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




[1] Massazza, F. & Costa, U. Effects of superplasticizers on the C3A hydration. In Proceddings of 7th congress international de la chimie des ciments, Paris, Vol. IV, 1980, 529-534.

[2] De Jong J. G. M., Stein H. N., Stevels J. M. Mutual Interaction of C3A and C3S during hydration. ibid, 1962 pp.311-327.

[3] Feldman R. F., Ramachandran V. S. Influence of CaSO4·H2O upon the hydration character of 3CaO·Al2O3. Mag. Cem. Concr. Res., 1966, 18(57): 185-196.

[4] Li Chongzhi, Li Yongde, Feng Naiqian. Development and Properties of Polycarbosylic Type High Performance Water-reducer [J]. Chinal Concrete and Cement Products. 2002, 2(4): 3-6.

[5] Ma Baoguo, Tan hongbo. Functions Control of Polycarboxylic Acid Type Water-reducing Agent, Journal of University of Jinan (Science and Technology), 2008(04): 338-342.

[6] Ma Baoguo, Tan hongbo. Side-chain Structure on the Polycarboxylic Acid type Water-reducing Agent, ICDCS2008 Hang Zhou.

[7] J. Plank, Z. Dai, P.R. Andres. Preparation and characterization of new Ca–Al–polycarboxylate layered double hydroxides. Materials Letters, 2006, 12(60): 3614-3617.

DOI: 10.1016/j.matlet.2006.03.070

[8] Ma Baoguo, Tan Hongbo, PAN Wei, Synthesis Craft and Performance Research of Polycarboxylate Superplasticizer[J], New Building Materials, 2007(6): 48-50.

In order to see related information, you need to Login.