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Study of Adsorptive Behaviors of Aminosulfonic Acid-Based Superplasticizer on the Calcium Sulphoaluminate Mineral

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Abstract:

Calcium sulphoaluminate (3CaO·3Al2O3·CaSO4, ) was synthesized with pure chemical reagents. The adsorbed amount of aminosulfonic acid-based superplasticizer (AS) on the surface of mineral and the mineral mixture (mixture of the , Ca(OH)2 and CaSO4·2H2O) were detected by ultraviolet-visible absorption spectrometry. The adsorptive behaviors of AS on the surface of mineral particles in the hydration system were studied. The results showed that: the adsorbed amount of AS on mineral and the mineral mixture increased with higher initial concentration; the adsorption amount and the maximum adsorption amount increased with prolonged hydration time; the adsorption amount and the maximum adsorption amount of AS on the mineral mixture was more than those on the mineral in the hydration system within the same hydration time.

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Periodical:

Advanced Materials Research (Volumes 306-307)

Pages:

1042-1046

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.306-307.1042

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Online since:

August 2011

Authors:

Tong Liu, Yan Jun Li, Bao Liang Li, Yuan Chao Wu, Wei Shan Wang, Xiao Cun Liu

Keywords:

Adsorption, As, C4A3S, Mineral Mixture of C4a3S

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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