Controlling of the adsorption and dispersing force of polycarboxylate-type superplasticizer by sulfate ion concentration in aqueous phase

By Kazuo Yamada, S. Ogawa, S. Hanehara. 2001

322 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/3672d69db0e51e019347fb7508ac1b95f96e211f

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In Civil and Structural Engineering

1. F. Puertas
2. M. Palacios
3. F. Winnefeld
4. J. Provis
5. R. Figi
6. P. Bowen
7. Y. F. Houst
8. B. Lothenbach

Citations in the corpus

• Effect of specimen composition on the strength development in cemented paste backfill (2006, background): “The higher the sulphonic group content, the higher the fluidity of the paste (Yamada et al. 2000b) because the sulphonic groups increase the electrostatic repulsion between particles, causing dispersion.”
• Compatibility between polycarboxylate-based admixtures and blended-cement pastes (2013, unknown): “This confirms that the higher the carboxylate group content in the admixture, the greater is its adsorption (see Table 5), because admixture adsorption by cement particles is mediated by its carboxylate groups [4,13].”
• Interaction of polycarboxylate-based superplasticizers with cements containing different C3A amounts (2009, background): “This could be due to competitive adsorption between sulphate ions and the carboxylic groups of the PCE molecules during initial hydration [30,31].”
• Adsorption of superplasticizer admixtures on alkali-activated slag pastes (2009, background): “Other authors have described the factors affecting the fluidizing effect of superplasticizer admixtures, concluding that it depends not only on the type of admixture used, but also on factors associated with the cement itself, such as C3A content, type and content of calcium sulphate used as a setti”
• Effects of polyethlene oxide chains on the performance of polycarboxylate-type water-reducers (2005, methodology): “The adsorption of PCs was evaluated bymeasuring the reduction amount of PC in the aqueous phase before and after mixing using a total carbon analyzer in many cases [8,13].”