Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/105368
Title: | Volume deformation and hydration behavior of ordinary portland cement/calcium sulfoaluminate cement blends | Authors: | Ji, G Ali, HA Sun, K Xuan, D Peng, X Li, J |
Issue Date: | Apr-2023 | Source: | Materials, Apr. 2023, v. 16, no. 7, 2652 | Abstract: | Blends of ordinary Portland cement (OPC) and calcium sulfoaluminate (CSA) cement can be used to adjust the properties of cement for specific applications. In this study, CSA cement was used as a shrinkage-compensating admixture to improve the hydration behavior and performance (compressive strength and drying shrinkage) of OPC; the expansion behavior of the blended cement mortar was evaluate based on the saturation index of ettringite. The experimental results showed that incorporating CSA cement resulted in a delayed effect on the hydration of C3S, shortened the induction periods of the blended cement and decreased the setting time. The CSA cement also improved the early compressive strength and drying shrinkage of the OPC due to its compact microstructure. The drying shrinkage of the OPC mortar decreased by 27.8% when 6% CSA cement was used, but the formation of microcracks due to expansion could negatively impact its late compressive strength development and associated pore structures of the blends when the replacement content of CSA cement exceeded 6 wt.%. The results relevant to the expansion behavior of the CSA cements could induce crystallization stress, enhancing its resistance against shrinkage cracking. | Keywords: | Calcium sulfoaluminate cement Hydration Microstructure Ordinary Portland cement Volume deformation |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Materials | EISSN: | 1996-1944 | DOI: | 10.3390/ma16072652 | Rights: | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Ji G, Ali HA, Sun K, Xuan D, Peng X, Li J. Volume Deformation and Hydration Behavior of Ordinary Portland Cement/Calcium Sulfoaluminate Cement Blends. Materials. 2023; 16(7):2652 is available at https://doi.org/10.3390/ma16072652. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
materials-16-02652-v2.pdf | 4.65 MB | Adobe PDF | View/Open |
Page views
47
Citations as of Jul 7, 2024
Downloads
36
Citations as of Jul 7, 2024
SCOPUSTM
Citations
2
Citations as of Jul 4, 2024
WEB OF SCIENCETM
Citations
2
Citations as of Jul 4, 2024
![](/image/google_scholar.jpg)
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.