Multi-method approach to study influence of superplasticizers on cement suspensions
作者： L. Ferrari , J. Kaufmann , F. Winnefeld , J. Plank
DOI: 10.1016/J.CEMCONRES.2011.06.010
关键词:
摘要: Abstract Superplasticizers are widely used in concrete processing to increase the rheological properties of hardening pastes. In this study, different techniques (rheology, adsorption, atomic force microscopy—AFM, and ζ-potential) characterize impact polycarboxylate-ether based superplasticizer (PCE) on particle suspensions. Results obtained with two cements inert powders (MgO calcite) show that efficiency is strongly influenced by polymer architecture ionic species present solution. Additionally, experiments performed AFM ζ-potential contributed dispersion forces exerted superplasticizers at solid–liquid interface. The application plateau AFM-tips coated platinum reveals depends presence ions solution, multilayer formation occurs certain types. A further conclusion includes idea PCE has a lubricating effect between adjacent particles increases surface wettability.
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sci-hub.se 参考文章(25)
W Prince, M Espagne, P.-C Aı̈tcin, Ettringite formation: A crucial step in cement superplasticizer compatibility Cement and Concrete Research. ,vol. 33, pp. 635- 641 ,(2003) , 10.1016/S0008-8846(02)01042-6
K Yamada, A Summary of Important Characteristics of Cement and Superplasticizers Ninth ACI International Conference on Superplasticizers and Other Chemical AdmixturesAmerican Concrete Institute (ACI). ,vol. 262, pp. 85- 96 ,(2009) , 10.14359/51663224
Burcu Çorbacioğlu, Berceste Beyribey, Zehra Altin, Synthesis of Platinum Particles from H2PtCl6 with Hydrazine as Reducing Agent gazi university journal of science. ,vol. 22, pp. 351- 357 ,(2010)
Anatol Zingg, Frank Winnefeld, Lorenz Holzer, Joachim Pakusch, Stefan Becker, Ludwig Gauckler, Adsorption of polyelectrolytes and its influence on the rheology, zeta potential, and microstructure of various cement and hydrate phases. Journal of Colloid and Interface Science. ,vol. 323, pp. 301- 312 ,(2008) , 10.1016/J.JCIS.2008.04.052
J. Plank, Ch. Winter, Competitive adsorption between superplasticizer and retarder molecules on mineral binder surface Cement and Concrete Research. ,vol. 38, pp. 599- 605 ,(2008) , 10.1016/J.CEMCONRES.2007.12.003
Anatol Zingg, Frank Winnefeld, Lorenz Holzer, Joachim Pakusch, Stefan Becker, Renato Figi, Ludwig Gauckler, Interaction of polycarboxylate-based superplasticizers with cements containing different C3A amounts Cement & Concrete Composites. ,vol. 31, pp. 153- 162 ,(2009) , 10.1016/J.CEMCONCOMP.2009.01.005
Kazuo Yamada, Shoichi Ogawa, Shunsuke Hanehara, Controlling of the adsorption and dispersing force of polycarboxylate-type superplasticizer by sulfate ion concentration in aqueous phase Cement and Concrete Research. ,vol. 31, pp. 375- 383 ,(2001) , 10.1016/S0008-8846(00)00503-2
S.K. Malhotra, S.K. Agarwal, Irshad Masood, Compatibility of superplasticizers with different cements Construction and Building Materials. ,vol. 14, pp. 253- 259 ,(2000) , 10.1016/S0950-0618(00)00025-8
J. Plank, K. Pöllmann, N. Zouaoui, P.R. Andres, C. Schaefer, Synthesis and performance of methacrylic ester based polycarboxylate superplasticizers possessing hydroxy terminated poly(ethylene glycol) side chains Cement and Concrete Research. ,vol. 38, pp. 1210- 1216 ,(2008) , 10.1016/J.CEMCONRES.2008.01.007
Johann Plank, Christian Hirsch, Impact of zeta potential of early cement hydration phases on superplasticizer adsorption Cement and Concrete Research. ,vol. 37, pp. 537- 542 ,(2007) , 10.1016/J.CEMCONRES.2007.01.007