Adsorption Characteristics of Surfactant on Slag in Alkali Activated Slag Cement System

Abstract:

Alkali activated slag cement was a new green cementing material with many performances. Whereas, high viscosity and bad workability of the fresh mixture were the matters to embarrass its application. For exploring the special superplasticizer, the adsorption characteristics of surfactant on slag was studied, by UV Vis Absorption Spectrum Method. The results showed, first, the adsorbed amount of cationic surfactant [CH3(CH2)11N(CH3)3]Cl was the highest value among the five surfactants, 12.8 mg/g. Second, the effect of alkali on the adsorbed amount of surfactant was complex. Cationic surfactant had cooperativity with alkali. But, adding water glass, the adsorbed amounts of the surfactants on slag were negative, because it was both colloid property and alkali solution property. Finally, the retarder of YP-3 made the adsorbed amount of ionic surfactant to increase, due to YP-3 contracted electric double layer in the surface of slag.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 1072-1078
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.1072
• Online since: May 2012
• Authors: Xian Feng Liu, Jia Hui Peng, Gui Fang Wei, Chang Hui Yang, Lin Qing Huang
• Keywords: Adsorption, Alkali Activated Cement, Granulated Blast-Furnace Slag, Surfactant

References

[1] Xincheng Pu. Alkali activated slag cement and concrete (in Chinese) [M]. Beijing, China: Science Press, 2010.

[2] Ming Liu. Promoting the development of Chinese cement industry in low carbon economy (in Chinese) [J]. China Cement, 4(2010)22-24.

[3] Juan He, Changhui Yang. Study on carbonation process of alkali-activated slag cement pastes [J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2011,39(5):29-33.

[4] Mija H. Hubler, Jeffrey J. Thomas, Hamlin M. Jennings. Influence of nucleation seeding on the hydration kinetics and compressive strength of alkali activated slag paste [J]. Cement and Concrete Research, 2011, 41(8):842–846.

DOI: 10.1016/j.cemconres.2011.04.002

[5] M.Ben Haha, G.Le Saout, F.Winnefeld, B.Lothenbach. Influence of activator type on hydration kinetics, hydrate assemblage and microstructural development of alkali activated blast-furnace slags [J]. Cement and Concrete Research, 2001,41(3):301-310.

DOI: 10.1016/j.cemconres.2010.11.016

[6] Susan A.Bernal, Ruby Mejía de Gutiérrez, Alba L.Pedraza, John L.Provis, Erich D.Rodriguez, Silvio Delvasto. Effect of binder content on the performance of alkali-activated slag concretes [J]. Cement and Concrete Research, 2011,41(1):1–8.

DOI: 10.1016/j.cemconres.2010.08.017

[7] Susan A.Bernal, Ruby Mejía de Gutierrez, John L. Provis, Volker Rose. Effect of silicate modulus and metakaolin incorporation on the carbonation of alkali silicate-activated slags [J]. Cement and Concrete Research,2010, 40(6):898–907.

DOI: 10.1016/j.cemconres.2010.02.003

[8] Yawei Fu, Liangcai Cai, Yonggen Wu. Freeze-thaw cycle test and damage mechanics models of alkali-activated slag concrete [J]. Construction and Building Materials, 2011,25 (7): 3144-3148.

DOI: 10.1016/j.conbuildmat.2010.12.006

[9] Frank G. Collins, Jay G. Sanjayan. Capillary Shape: Influence on water transport within unsaturated alkali activated slag concrete [J]. Journal of Materials in Civil Engineering, 2010,22(3):260-266.

DOI: 10.1061/(asce)0899-1561(2010)22:3(260)

[10] Changhui Yang, Fang Wu, Ke Chen. Research on set retarder of high and super high strength alkali-activated slag cement and concrete [J]. Key Engineering Materials, 2011,477:164-169.

DOI: 10.4028/www.scientific.net/kem.477.164

[11] Yanli Xu. Function of surfactant (in Chinese) [M]. Beijing: Chemical Industy Press, 2000.