Title:
Sulfoaluminate Cement: Gypsum-Quicklime Impact on Grouting Material
Author(s):
Nathan S. Teah, Lin Liao, Yubing Zhao, Zhiling Liao, Wanwen Xue, and Ruiqing Hao
Publication:
Materials Journal
Volume:
123
Issue:
2
Appears on pages(s):
95-102
Keywords:
compressive strength; grouting material; gypsum; hydration product; quicklime; sulfoaluminate cement (SAC)
DOI:
10.14359/51749382
Date:
3/1/2026
Abstract:
This study investigates the impact of the quicklime and gypsum ratio on grouting material made of sulfoaluminate cement (SAC). Gypsum and quicklime were selected to verify that sulfoaluminate cement retained ettringite (AFt). SAC’s efficiency as a grouting material was evaluated using gypsum and quicklime. SAC with varying gypsum-quicklime ratios was subjected to tests for compressive strength, pH, setting time, expansion rate, X-ray diffraction (XRD), and scanning electron microscopy (SEM). The microstructure was investigated with XRD at 1 and 28 days. The result obtained points to two key findings: the retention of AFt was excellent (≥99%) regardless of the gypsum-quicklime ratio, and the retention of AFt without gypsum and quicklime depended on the SAC; in this case, the setting time was prolonged, leading to expansion strain.
Related References:
1. Krishnamoorthy, T. S.; Gopalakrishnan, S.; Balasubramanian, K.; Bharatkumar, B. H.; and Rama Mohan Rao, P., “Investigations on the Cementitious Grouts Containing Supplementary Cementitious Materials,” Cement and Concrete Research, V. 32, No. 9, 2002, pp. 1395-1405. doi: 10.1016/S0008-8846(02)00799-8
2. Péra, J., and Ambroise, J., “New Applications of Calcium Sulfoaluminate Cement,” Cement and Concrete Research, V. 34, No. 4, 2004, pp. 671-676. doi: 10.1016/j.cemconres.2003.10.019
3. Burris, L. E., and Kurtis, K. E., “Influence of Set Retarding Admixtures on Calcium Sulfoaluminate Cement Hydration and Property Development,” Cement and Concrete Research, V. 104, 2018, pp. 105-113. doi: 10.1016/j.cemconres.2017.11.005
4. Jia, F.; Sun, H.; Yu, L.; Lu, X.; Zhou, Y.; Elchalakani, M.; and Du, P., “Effects of Different Gypsum Varieties on the Hydration and Mechanical Properties of Red Mud-Based Ferrite-Rich Sulfoaluminate Cement,” Journal of Materials Research and Technology, V. 24, 2023, pp. 3086-3097. doi: 10.1016/j.jmrt.2023.03.197
5. Aimin, X., and Sarkar, S. L., “Microstructural Study of Gypsum- Activated Fly Ash Hydration in Cement Paste,” Cement and Concrete Research, V. 21, No. 6, 1991, pp. 1137-1147. doi: 10.1016/0008-8846(91)90074-R
6. Pommersheim, J., and Chang, J., “Kinetics of Hydration of Tricalcium Aluminate in the Presence of Gypsum,” Cement and Concrete Research, V. 18, No. 6, 1988, pp. 911-922. doi: 10.1016/0008-8846(88)90027-0
7. Zhu, Y.; Ma, B.; Li, X.; and Hu, D., “Ultra-High Early-Strength Self-Compacting Mortar Based on Sulfoaluminate Cement and Silica Fume,” Journal of Wuhan University of Technology-Materials Science Edition, V. 28, No. 5, 2013, pp. 973-979. doi: 10.1007/s11595-013-0803-5
8. Xu, X.; Bi, H.; Yu, Y.; Fu, X.; Wang, S.; Liu, Y.; Hou, P.; and Cheng, X., “Low Leaching Characteristics and Encapsulation Mechanism of Cs+ and Sr2+ from the SAC Matrix with Radioactive IER,” Journal of Nuclear Materials, V. 544, 2021, p. 152701. doi: 10.1016/j.jnucmat.2020.152701
9. Yan, J.; Liu, K.; Zou, C.; Mo, Y.; and Ou, J., “Comparison of Evaluation Tests for Compressive Strength of Structural Concrete,” Periodica Polytechnica Civil Engineering, V. 64, 2020, pp. 387-395. doi: 10.3311/PPci.12545
10. Chen, X.; Gao, J.; Yan, Y.; and Liu, Y., “Investigation of Expansion Properties of Cement Paste with Circulating Fluidized Bed Fly Ash,” Construction and Building Materials, V. 157, 2017, pp. 1154-1162. doi: 10.1016/j.conbuildmat.2017.08.159
11. Jansen, D.; Wolf, J. J.; and Fobbe, N., “The Hydration of Nearly Pure Ye’elimite with a Sulfate Carrier in A Stoichiometric Ettringite Binder System. Implications for the Hydration Process Based on In-Situ XRD, 1H-TD-NMR, Pore Solution Analysis, and Thermodynamic Modeling,” Cement and Concrete Research, V. 127, 2020, p. 105923. doi: 10.1016/j.cemconres.2019.105923
12. Chen, X.; Wang, J.; Jiao, H.; Yang, Z.; Zheng, D.; and Sun, J., “Study on Early Hydration Mechanism of Double-Liquid Grouting Material Modified by Composite Early Strength Agent,” Materials, V. 16, No. 19, 2023, p. 6475. doi: 10.3390/ma16196475
13. Seo, J.; Kim, S.; Park, S.; Yoon, H. N.; and Lee, H. K., “Carbonation of Calcium Sulfoaluminate Cement Blended with Blast Furnace Slag,” Cement and Concrete Composites, V. 118, 2021, p. 103918. doi: 10.1016/j.cemconcomp.2020.103918
14. Manocha, S., and Ponchon, F., “Management of Lime in Steel,” Metals, V. 8, No. 9, 2018, p. 686. doi: 10.3390/met8090686
15. Li, Z.; Luo, J.; Yuan, S.; Gao, Y.; Zhang, J.; Gao, S.; and Zhu, M., “Mix Ratio Optimization and Comprehensive Performances of Novel High-Early Strength Non-Shrinkage Sleeve Grouting Material,” Structures, V. 61, 2024, p. 106048.
16. Wei, X.; Liu, X.; Duan, Y.; and Feng, J., “Property Transformation of a Modified Sulfoaluminate Grouting Material Under Pressure Circulation for a Water-Sealed Underground Oil Cavern,” Construction and Building Materials, V. 140, 2017, pp. 210-220. doi: 10.1016/j.conbuildmat.2017.02.137
17. Bi, R.; Cheng, W.; and Chen, X., “Effect of Calcium Sulfate Variety and Content on Hydration Mechanism of Grout Sealants for Coal-Bed Methane Drainage Boreholes,” Construction and Building Materials, V. 203, 2019, pp. 443-455. doi: 10.1016/j.conbuildmat.2019.01.046
18. Pimraksa, K., and Chindaprasirt, P., “Sulfoaluminate Cement-Based Concrete,” Eco-Efficient Repair and Rehabilitation of Concrete Infrastructures, F. Pacheco-Torgal, R. E. Melchers, X. Shi, N. De Belie, K. Van Tittelboom, and A. Sáez, eds., Woodhead Publishing, Sawston, UK, 2018, pp. 355-385.