Title:
Effects of Pre-Hydration on Compressive Strength of Quaternary Binders
Author(s):
Suguru Goto, Thomas A. Bier, Keisuke Takahashi, and Tetsuhiro Sakai
Publication:
Symposium Paper
Volume:
320
Issue:
Appears on pages(s):
30.1-30.112
Keywords:
Anhydrite ; Blast furnace slag; Calcium-aluminate cement; Calcium sulfate; Compressive strength; Portland cement ; Pre-hydration ; Quaternary binders
DOI:
10.14359/51701068
Date:
8/1/2017
Abstract:
In order to reduce the total carbon footprint and the energy consumption in sustainable construction, cementitious materials are produced by increasing amounts of alternative secondary raw materials such as ground granulated blast-furnace slag. However, significant degradation of physical properties at early age can be occasionally observed since the clinker content is reduced with the utilization of alternative binders. Degradation at the early age can be compensated by the addition of materials containing calcium-aluminate phases and calcium sulphates.
This study describes and explains the influence on compressive strength of moisture up-take in the dry state for a quaternary binder. The quaternary binder is composed of ordinary portland cement, ground granulated blast-furnace slag, calcium-aluminate cement and anhydrite. The results show that compressive strength of samples pre-hydrated at high moisture conditions was 1.2–1.6 times higher than that of the samples pre-hydrated under lower moisture conditions.
Related References:
1. Henly-Lanier,E., Espinosa,B. and Eychene-Baron,C. : “Enviromental foot print of calciumaluminate cements(CAC)”, Calcium aluminates, Proceedings of the international conference,France, 2014, pp.3-16
2. UNEP.Builidings and climate change: Summary for decision- makers. Available at:http://www.unep.org/sbci/pdfs/sbci-bccsummary.pdf.2009
3. Mori, H., Maruya, E., Sasaki A. and Takahashi T., “Effect of temperature on length changeof cementitious materials using Portland cement –calcium aluminate cement – anhydrite blastfurnace slag system”, Calcium aluminates, Proceedings of the international conference,France, 2014, pp.407-421
4. Mori, H., Itoh, T., Takahashi T., Akatsu T., Sakai E., “Examination of Strength Model forthe Cementitious Material Containing Aluminous Cement”, Journal of advanced concretetechnology, 2016, pp. 607-613.
5. L. Amathieu, Th. A. Bier, K.L. Scrivener, “Mechanisms of set acceleration of PortlandCement through CAC addition”, in Calcium Aluminate Cements 2001, Proceedings of theInternational Conference on CAC, Edimburgh, July 2001, pp303-317
6. Emoto, T. and Bier, T.A. "Rheological behavior as influenced by plasticizers andhydration kinetics." Cement and concrete research 37, no. 5, 2007, 647-654.
7. Lamberet, S. “ Durability of ternary binders based on Portland cement, calcium aluminatecement and calcium sulfate”, Ph.D-Thesis, hèse No 3151, Ecole polytechnique fédérale deLausanne ,2005
8.Whittaker, M, Dubina, E, Al-Mutawa, F, Arkless, L, Plank, J and Black, L “The effect ofpre-hydration on the engineering properties of CEM I Portland cement”. Advances inCement Research, 25 (1). 12 - 20. ISSN 0951-719”, 2013
9. Schmidt, G., Bier, T. A., Wutz, K., & Maier, M. “Characterization of the ageing behaviourof premixed dry mortars and its effect on their workability properties” ZKGINTERNATIONAL, 60(6), 2007, pp94-103
10. Plank, J., Dubina, E., Meier, M.R., “Ageing behavior of SLU mortar formulations basedon a ternary binders system comprising OPC/CAC/Anhydrite exposed moisture andatmospheric CO2, Calcium aluminates, Proceedings of the international conference, France,2014, pp.407-421
11. Knofel,D., Duckwitz,S. and Bier,T. “Optimizing the early strength of high aluminacement”, ZKB international, Nr.8, 1997, pp454-462
12. Scrivener, K., Snellings R. and Lothenbach, B., “Apractical guide to microstructuralanalysis of cementitious materials” CRC Press, Boca Raton, 2016, pp.178-192
13. Mori, H.”Portland cement-Aluminate cement-Anhydrite kei tasou zairyo no tokusei tokyoudo hatsugen kikou”, Doctoral thesis, Tokyo institute of technology, 2016(in Japanese)
14. Kalliopi K. Aligizaki:pore structure of cement based materials, Modern ConcreteTechnology, Taylor & Francis, 2006
15. D. Damidot and A. Rettel, “Study of the interaction between the hydration of CA and ofC3S at room temperature”, Proceedings of the 11th International Congress on the Chemistryof Cement (ICCC) 11 - 16 May, Durban, South Africa ‘Cement’s Contribution to theDevelopment in the 21st Century’, 2003