English
Język Polski
Structuration investigation of fast-setting self leveling underlayment based on ettringite binder
DOI:
https://doi.org/10.24425/ace.2021.136486Abstract
Self – Levelling Underlayment (SLU) is one of the high-performance new materials used in the construction industry. Besides the strength, other characteristics of SLU such as workability, rapid drying, rapid hardening, shrinkage compensation, smooth nature, etc. are required depending on the application. The aim of this study is to evaluate the structuration with the time of SLU through some important characteristics such as the evolution of rheological properties, ettringite, and gibbsite phase development. To this purpose, a rheometer with rotation mode and oscillation mode was used to determine the yield stress, plastic viscosity, rheological dynamic modulus (storage modulus and loss modulus). The use of these techniques is considered to be a method for monitoring structuration development in cement materials. The result shows that during the hydration process, increased plastic viscosity, yield stress, and dynamic modulus of the SLU were identified from just 5 minutes after mixing until the setting period when the transition from a fluid state to a solid-state of SLU takes place. By using a rheometer in oscillation mode, the beginning of the transition process from the liquid-state to the solid-state of SLU was identified, this method is more precise when compared to traditional Vicat method.References
1. M. Wallace, “Self-leveling underlayments - an easy way to level floors,” Concr. Constr. -World Concr., vol. 32, no. 3, 1987.
2. Y. Guan, X. Zhou, X. Yao, and Y. Shi, “Vibration of cold-formed steel floors with a steel form deck and gypsum-based self-leveling underlayment,” Adv. Struct. Eng., vol. 22, no. 13, pp. 2741-2754, 2019.
3. J. Kighelman, “Hydration and structure development of ternary binder system as used in self-levelling compounds,” EPFL, Lausanne, 2007.
4. K. Onishi and T. A. Bier, “Investigation into relations among technological properties, hydration kinetics and early age hydration of self-leveling underlayments,” Cem. Concr. Res., vol. 40, no. 7, pp. 1034-1040, 2010.
5. J. A. Elodie Prud’homme, Ngoc Lam Nguyen, Marie Michel, Jean-François Georgin, “Investigation of Ettringite Binder Hydration at Early Age for Glass Fiber Reinforced Concrete Application,” in Developments in Strategic Materials and Computational Design V: A Collection of Papers Presented at the 38th International Conference on Advanced Ceramics and Composites, 2014.
6. E. Prud, T. Guillot, J. Ambroise, P. A. Andreani, and P. Taquet, “Critical analysis of residual water in selfleveling underlayment,” Constr. Build. Mater., vol. 200, pp. 55-63, 2019.
7. H. Lutz and R. Bayer, “Dry Mortars,” in Ullmann’s Encyclopedia of Industrial Chemistry, 2010.
8. N. L. Nguyen, “Comparison of autogenous shrinkage measurements by different methods in case of fasthardening mortar,” in IOP Conference Series: Materials Science and Engineering, vol. 869, issue 3, pp. 032-041, 2020.
9. G. Le Saoût, B. Lothenbach, P. Taquet, H. Fryda, and F. Winnefeld, “Hydration of calcium aluminate cement blended with anhydrite,” Adv. Cem. Res., vol. 30, no. 1, pp. 24-36, 2018.
10. S. Lamberet, “Durability of ternary binders based on portland cement calcium aluminate cement and calcium sulfate,” École Polytechnique Fédérale de Lausanne, 2005.
11. N. N. Lam, “Some microstructure properties at early age of ettringite binder based on rich C12A7 calcium aluminate cement,” J. Sci. Technol. Civ. Eng. - NUCE, vol. 12, no. 3, pp. 44-50, 2018.
12. L. Barcelo, M. Moranville, and B. Clavaud, “Autogenous shrinkage of concrete: A balance between autogenous swelling and self-desiccation,” Cem. Concr. Res., vol. 35, no. 1, pp. 177-183, 2005.
13. E. E. Holt, “Early age autogenous shrinkage of concrete,” VTT Publ., 2001.
14. J. F. Georgin and E. Prud’Homme, “Hydration modelling of an ettringite-based binder,” Cem. Concr. Res., vol. 76, pp. 51-61, Oct. 2015.
15. Ngoc Lam Nguyen,"Influence of type of calcium sulfate on chemical shrinkage and heat of hydration in selfleveling underlayments using ettringite binder," J. Sci. Technol. Civ. Eng. - NUCE, vol. 12, issue.2, no. 2, pp. 92-97, 2018.
16. R. Ylmén, U. Jäglid, B. M. Steenari, and I. Panas, “Early hydration and setting of Portland cement monitored by IR, SEM and Vicat techniques,” Cem. Concr. Res., vol. 39, no. 5, pp. 433-439, 2009.
17. T. G. Mezger, The Rheology Handbook. 2019.
18. A. Dutta, “Fourier Transform Infrared Spectroscopy,” in Spectroscopic Methods for Nanomaterials Characterization, 2017, pp. 73-93.
19. R. B. Perkins, “The solubility and thermodynamic properties of ettringite, its chromium analogs, and calcium aluminum monochromate (3CaO*Al(2)O(3)*CaCrO(4)*nH(2)O),” 2000.
20. Rheology of Fresh Cement and Concrete. 1991.
21. M. Stieger, “The Rheology Handbook - For users of rotational and oscillatory rheometers,” Appl. Rheol., 2019.
22. and W. G. L. L. J. Struble, H. Zhang, G.K. Sun, “Oscillatory shear behavior of Portland cement paste during early hydration,” Concr. Sci. Eng. RILEM Publ. SARL, vol. 2, no. 7, pp. 141-149, 2000.
23. P. S. Nicoleau L., Garrault S., Nonat A., “Etude par rhéométrie dynamique des interactions physico-chimiques entre les latex et les phases minérales constituant le ciment,” in 38ème colloque français du Groupe Français de Rhéologie., 2003.
24. L. Nachbaur, J. C. Mutin, A. Nonat, and L. Choplin, “Dynamic mode rheology of cement and tricalcium silicate pastes from mixing to setting,” Cem. Concr. Res., 2001.
25. S. Gauffinet-Garrault, “The rheology of cement during setting,” in Understanding the Rheology of Concrete, 2012, pp. 96-113.
26. S.H. Jang, “Identification of concrete incompatibilities using cement paste rheology,” 2009.
Downloads
Published
How to Cite
Issue
Section
