Alzaza, A., Ohenoja, K., Isteri, V., Hanein, T., Geddes, D., Poikelispää, M., & Illikainen, M. (2022). Blending eco-efficient calcium sulfoaluminate belite ferrite cement to enhance the physico–mechanical properties of Portland cement paste cured in refrigerated and natural winter conditions. Cement and Concrete Composites, 129, 104469. https://doi.org/10.1016/j.cemconcomp.2022.104469
Blending eco-efficient calcium sulfoaluminate belite ferrite cement to enhance the physico–mechanical properties of Portland cement paste cured in refrigerated and natural winter conditions
|Author:||Alzaza, Ahmad1; Ohenoja, Katja1; Isteri, Visa2;|
1Fiber and Particle Engineering Research Unit, Faculty of Technology, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland
2Process Metallurgy, Faculty of Technology, PO Box 4300, 90014, University of Oulu, Finland
3Department of Materials Science and Engineering, The University of Sheffield, Sheffield, S1 3JD, UK
4Tampere University, Faculty of Engineering and Natural Sciences, P.O. Box 589, FI-33014, Tampere, Finland
|Online Access:||PDF Full Text (PDF, 9.8 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022050332420
|Publish Date:|| 2022-06-20
The acceleration impacts of calcium sulfoaluminate belite ferrite (CSABF)—a cement produced from industrial side streams—on the hydration and strength development of Portland cement (PC) paste cured at −5 °C with and without pre-curing at room temperature were investigated. The impacts of eco-friendly CSABF cement content and pre-curing on the setting time and hardened properties of pastes were investigated. Freezing point of the paste and the amount of freezable water (FW) decreased with CSABF cement content and pre-curing. Hydration rate increased with CSABF cement content. By adding an optimal CSABF cement content, the compressive strength of paste cured at −5 °C increased by 500%. The effects of pre-curing on the compressive strength of the subzero-cured pastes were highly dependent on CSABF cement content and curing period. After 6 months, the outdoor-cured 70%PC/30%CSABF paste gained compressive strength comparable to that in the 90-day-old pair cured at −5 °C and continuous strength gain was detected up to one-year. The microstructural observations and porosity results are consistent with compressive strength measurements.
Cement & concrete composites
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
This work was conducted under the auspices of the ARCTIC-ecocrete project, which was supported by the Interreg Nord EU program and the Regional Council of Lapland, and the CECIRE project, which was funded by Business Finland and the Finnish companies Boliden Harjavalta, Boliden Kokkola, Outokumpu Stainless, and Yara and Fortum Waste Solutions. We also thank Tauno Tönning Foundation for the financial support of the work. Participation of Theodore Hanein was funded by UKRI FLF (MR/V023829/1).
© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).