Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste

Peng, Ya; Pedersen, Bård; Ng, Serina; de Weerdt, Klaartje; Jacobsen, Stefan

doi:10.2478/ncr-2018-0007

Abstract

Bleeding and sedimentation quantify the stability of fresh cement paste, whereas the addition of fillers and water reducers affect the stability. The effect of various types of fillers and water reducers was investigated by measuring bleeding, hydrostatic pressure and electroacoustic zeta-potential. Depending on their characteristics and use, fillers can improve stability by reducing sedimentation rate and bleeding. The combined effects of fillers and water reducers on the sedimentation rates, quantified as time-dependent hydrostatic pressure changes (dp/dt) in fresh matrix, correspond to their effects on zeta-potentials. The influence of the water reducers on sedimentation and bleeding exceed that of filler type.

References

1. E. Mørtsell, M. Maage, S. Smeplass: “A Particle-Matrix Model for Prediction of Workability of Concrete”, Proceedings, International Conference on Production Methods and Workability of Fresh Concrete”, Glasgow, Scotland 1995, 11 pp.
Search in Google Scholar Back to article
2. Josserand L, Coussy O and de Larrard F: “Bleeding of concrete as an ageing consolidation process”, Cement Concr. Res., V.36, 2006, pp.1603–1608.10.1016/j.cemconres.2004.10.006
Search in Google Scholar Back to article
3. Martius-Hammer T.A., Smeplass S., De Weerdt K., Peng Y.: “Stability of SCC-robustness for changes in water content and sand grading”, COIN Report, Trondheim, Norway, 2013, 27p
Search in Google Scholar Back to article
4. Peng Y., Jacobsen S.: “Influence of water cement ratio, admixtures and filler on sedimentation and bleeding of cement paste”, Cem. Conc. Res., V.54, 2013, pp. 133-14210.1016/j.cemconres.2013.09.003
Search in Google Scholar Back to article
5. Pedersen B.: “Alkali-reactive and inert fillers in concrete – Rheology of fresh mixtures and expansive reactions”, Doctoral thesis, NTNU, Trondheim, Norway, 2004, 292 pp.
Search in Google Scholar Back to article
6. Rhodes M., “Introduction to Particle Technology”, 2nd Edition, 2008, John Wiley &Sons, Ltd, UK, ISBN 978-0-470-01428-8, 474 pp.
Search in Google Scholar Back to article
7. Stokes G.G., Math. Phys. Papers, 1901, Vol. 310.1515/zcph.1901.3.1.220
Search in Google Scholar Back to article
8. Richardson J F; Zaki W N.: “The sedimentation of a suspension of uniform spheres under conditions of viscous flow”, Chem. Eng. Sci., V.3, 1954, pp. 65-7310.1016/0009-2509(54)85015-9
Search in Google Scholar Back to article
9. Kynch G. J:, “A theory of sedimentation”, Trans. Faraday Soc., V.48, 1952, pp.166-17610.1039/tf9524800166
Open DOI Search in Google Scholar Back to article
10. Powers T.C., “The Properties of Fresh Concrete”, Wiley & Sons, London, 1968, 664 pp.
Search in Google Scholar Back to article
11. Steinour H. H.: “Further studies of the bleeding of Portland cement paste”, Research Bulletin No. 4, Portland Cement Association, Skokie, USA, 1945
Search in Google Scholar Back to article
12. Zingg A., Winnefeld F., Holzer L., Pakusch J., Becker S., Gauckler L.: “Adsorption of polyelectrolytes and its influence on the rheology, zeta-potential, and microstructure of various cement and hydrate phases”, Journal of Coll. Inter. Sci., V.323, 2008, pp. 301-31210.1016/j.jcis.2008.04.052
Search in Google Scholar Back to article
13. Zingg A., Winnefeld F., Holzer L., Pakusch J., Becker S., Figi R., Gauckler L.: “Interaction of polycarboxylate-based superwater reducers with cements containing different C3A amounts”, Cem. Conc. Comp., V.31, 2009, pp. 153-16210.1016/j.cemconcomp.2009.01.005
Search in Google Scholar Back to article
14. Hunter R.J.: “Zeta-potential in Colloid Science”. England: Academic Press, 1981
Search in Google Scholar Back to article
15. Williams R.A., Xie C.G., Bragg R., Amarasinghe W.P.K.: “Experimental techniques for monitoring sedimentation in optically opaque suspensions”, Coll. Surf., V.43, 1990, pp.1-3210.1016/0166-6622(90)80001-K
Search in Google Scholar Back to article
16. Peng Y., Jacobsen S., De Weerdt K., Pedersen B:, “Model and test methods for stability of fresh cement paste”, ASTM-Adv. Civ. Engi. Mat., V.3, 2014, pp. 1-24, doi:10.1520/ACEM2013009710.1520/ACEM20130097
Open DOI Search in Google Scholar Back to article
17. Peng Y., “Sedimentation and bleeding of fresh cement paste”: Doctoral thesis, Norwegian University of Science and Technology, Trondheim, Norway, 2014:89 ISBN 978-82-326-0102-8 (printed), 2014:89 ISBN 978-82-326-0103-5 (electronic), 2014, NTNU, Norway
Search in Google Scholar Back to article
18. O’Brien R.W., Cannon D.W., Rowlands W.N.: “Electroacoustic Determination of Particle Size and Zeta-potential”, Journal of Coll. Inter. Sci., V.173, 1995, pp. 406-41810.1006/jcis.1995.1341
Search in Google Scholar Back to article
19. Lank J., C. Hirsch: “Impact of zeta-potential of early cement hydration phases on superwater reducer adsorption”, Cem. Conc. Res., Vol.. 37, 2007, pp. 537-54210.1016/j.cemconres.2007.01.007
Search in Google Scholar Back to article
20. Lesti M., Ng S., Plank J.: “Ca²⁺ Ion – Mediated Interaction between Microsilica and Polycarboxylate Comb Polymers in Model Cement Pore Solution”, Journal of the Ame. Cer. Soc., V.93, 2010, pp. 3493 – 349810.1111/j.1551-2916.2010.03901.x
Search in Google Scholar Back to article
21. Peng Y., Lauten R.A., Reknes K., Jacobsen S. “Bleeding and sedimentation of cement paste measured by hydrostatic pressure and Turbiscan”, Cem. Conc. Com., V.76, 2017, pp. 25-38.10.1016/j.cemconcomp.2016.11.013
Search in Google Scholar Back to article

Filler and Water Reducer Effects on Sedimentation, Bleeding and Zeta-Potential of Cement Paste

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