The microstructure of dispersed and non-dispersed fresh cement pastes - New insight by cryo-microscopy

Cement and Concrete Research

Volumn 38, Issue 4, 2008, Pages 522-529

  Zingg, Anatol ^a   Holzer, Lorenz ^a   Kaech, Andres ^b   Winnefeld, Frank ^a   Pakusch, Joachim ^c   Becker, Stefan ^c   Gauckler, Ludwig ^b  

^a SWISS FEDERAL LABORATORIES FOR MATERIALS SCIENCE AND TECHNOLOGY   (Switzerland)

^b ETH ZURICH   (Switzerland)

^c BASF SE   (Germany)

Author keywords

Cement paste; Cryo FIB; Cryo SEM; Microstructure; Superplasticizer

Indexed keywords

DISPERSIONS; FLUIDIZATION; HIGH PRESSURE EFFECTS; PORE STRUCTURE; SCANNING ELECTRON MICROSCOPY; SUPERPLASTICITY;

CEMENT PASTES; HIGH PRESSURE FREEZING; MICROSTRUCTURAL DEVELOPMENT; SUPERPLASTICIZERS;

CEMENTS;

EID: 39749122310     PISSN: 00088846     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cemconres.2007.11.007     Document Type: Article

References (32)

1. Uchikawa H., Hanehara S., Shirasaka T., and Sawaki D. Effect of admixture on hydration of cement, adsorptive behavior of admixture and fluidity and setting of fresh cement paste. Cement and Concrete Research 22 6 (1992) 1115-1129
2. Uchikawa H., Hanehara S., and Sawaki D. The role of steric repulsive force in the dispersion of cement particles in fresh paste prepared with organic admixture. Cement and Concrete Research 27 1 (1997) 37-50
3. Hanehara S., and Yamada K. Interaction between cement and chemical admixture from the point of cement hydration, adsorption behaviour of admixture, and paste rheology. Cement and Concrete Research 29 8 (1999) 1159-1165
4. Flatt R.J., and Houst Y.F. A simplified view on chemical effects perturbing the action of superplasticizers. Cement and Concrete Research 31 8 (2001) 1169-1176
5. Yamada K., Takahashi T., Hanehara S., and Matsuhisa M. Effects of the chemical structure on the properties of polycarboxylate-type superplasticizer. Cement and Concrete Research 30 2 (2000) 197-207
6. Sakai E., Yamada K., and Ohta A. Molecular structure and dispersin-adsorption mechanisms of comb-type superplasticizers used in Japan. Journal of Advanced Concrete Technology 1 1 (2003) 16-25
7. Winnefeld F., Becker S., Pakusch J., Götz T., and Kaufmann J. Struktur-Wirkungsbeziehungen von Polycarboxylatether - Fliessmitteln. Tagung Bauchemie. Monographie Bd. 35 (2005), GDCh-Fachgruppe Bauchemie, Berlin 330-335
8. Winnefeld F., Becker S., Pakusch J., and Gotz T. Effects of the molecular architecture of comb-shaped superplasticizers on their performance in cementitious systems. Cement and Concrete Composites 29 4 (2007) 251-262
9. Moeser B. REM- und EDX-Untersuchungen an Betonen. Wiss. Z. 42 (1996), Bauhaus-Universitaet Weimar 61-74
10. Kjellsen K.O., Lagerblad B., and Jennings H.M. Hollow-shell formation - an important mode in the hydration of Portland cement. Journal of Materials Science 32 11 (1997) 2921-2927
11. Kreppelt F., Weibel M., Zampini D., and Romer M. Influence of solution chemistry on the hydration of polished clinker surfaces - a study of different types of polycarboxylic acid-based admixtures. Cement and Concrete Research 32 2 (2002) 187-198
12. Kjellsen K.O., Monsoy A., Isachsen K., and Detwiler R.J. Preparation of flat-polished specimens for SEM-backscattered electron imaging and X-ray microanalysis - importance of epoxy impregnation. Cement and Concrete Research 33 4 (2003) 611-616
13. C. Rössler, J. Stark. Der Einfluss von Fliessmitteln auf die Hydratation von Portlandzement. in 15. Ibausil. Weimar 2003. 2: p. 508-522.
14. Diamond S. The microstructure of cement paste and concrete - a visual primer. Cement and Concrete Composites 26 8 (2004) 919-933
15. Scrivener K.L. Backscattered electron imaging of cementitious microstructures: understanding and quantification. Cement and Concrete Composites 26 8 (2004) 935-945
16. Donaldson C.C., McMahon J., Steward R.F., and Sutton D. The characterisation of structure in suspensions. Colloids and Surfaces 18 2-4 (1986) 373-393
17. Wyss H.M., Hütter M., Müller M., Meier L.P., and Gauckler L.J. Quantification of microstructures in stable and gelated suspensions from cryo-SEM. Journal of Colloid and Interface Science 248 2 (2002) 340-346
18. Wyss H.M., Tervoort E., Meier L.P., Müller M., and Gauckler L.J. Relation between microstructure and mechanical behavior of concentrated silica gels. Journal of Colloid and Interface Science 273 2 (2004) 455-462
19. Metha S., Jones R., and Caveny B. Cryogenics with cement microscopy redefines cement behavior. Oil & Gas Journal 10 (1994) 47-53
20. Poellmann H., Goeske J., and Pankau H.G. Application of cryo-transfer scanning electron microscopy for investigation of cement hydration and cementitious systems. Twenty-Second International Conference on Cement Microscopy 1 (2000), International cement microscopy association, Montreal, Quebec, Canada 310-331
21. Goeske J., Poellmann H., and Pankau H.G. Hydration of high alumina cement investigations with low temperature SEM (cryo-technique). Calcium Aluminate Cements 1 (2001), University Press Cambridge, Heriot-Watt University Edinburgh, Scotland, UK 189-196
22. Fylak M., Goeske J., Kachler W., Wenda R., and Poellmann H. Cryotransfer scanning electron microscopy for the study of cementitious systems. European Microscopy and Analysis 20 4 (2006) 9-12
23. U. Riehle. Über die Vitrifizierung verdünnter wässriger Lösungen. ETH (Swiss Federal Institute of Technology) Zurich, PhD-Thesis, 1968.
24. Menold R., Lüttge B., and Kaiser W. Freeze-fracturing, a new method for the investigation of dispersions by electron microscopy. Advances in Colloid and Interface Science 5 4 (1976) 281-335
25. Bachmann L., and Mayer E. Physics of water and ice: implications for cryofixation. In: Steinbrecht R.A., and Zierold K. (Eds). Cryotechniques in Biological Electron Microscopy (1987), Springer-Verlag 3-34
26. Moor H. Theory and practice of high pressure freezing. In: Steinbrecht R.A., and Zierold K. (Eds). Cryotechniques in Biological Electron Microscopy (1987), Springer-Verlag, Berlin Heidelberg 175-191
27. Holzer L., Muench B., Wegmann M., and Gasser P. FIB-nanotomography of particulate systems - Part I: particle shape and topology of interfaces. Journal of the American Ceramic Society 89 8 (2006) 2577-2585
28. Muench B., Gasser P., Holzer L., and Flatt R.J. FIB-nanotomography of particulate systems - Part II: particle recognition and effect of boundary truncation. Journal of the American Ceramic Society 89 8 (2006) 2586-2595
29. Holzer L., Gasser P., Kaech A., Wegmann M., Zingg A., Wepf R., and Muench B. Cryo-FIB-nanotomography for quantitative analysis of particle structures in cement suspensions. Journal of Microscopy 227 3 (2007) 216-228
30. Richter T., Peuckert C., Sattler M., Koenig K., Riemann I., Hintze U., Wittern K.-P., Wiesendanger R., and Wepf R. Dead but highly dynamic - the stratum corneum is divided into three hydration zones. Skin Pharmacology and Physiology 17 5 (2004) 246-257
31. Ritter M., Henry D., Wieser S., Pfeiffer S., and Wepf R. A versatile high-vacuum cryo-transfer for cryo-FESEM, cryo-SPM and other imaging techniques. Microscopy and Microanalysis 5 2 (1999) 424-427
32. Holzer L., Winnefeld F., Lothenbach B., and Zampini D. The early cement hydration: a multi-method approach. 11th International Congress on the Chemistry of Cement ICCC. Durban, South-Africa (2003) 236-248