Influence of Supersulfated Cement Composition on Hydration Process
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 6
Abstract
In recent years, considerable attention has been given to the development of special cements capable of reducing emissions as well as energy and limestone consumption. One option is the use of supersulfated cements (SSCs). SSCs are primarily comprised of blast-furnace slag (80%–85%), calcium sulfate (10%–15%), and an alkaline activator, which is often portland cement, though in a relatively small quantity (around 5%). In this paper, the effects of the proportions of SSC (slag, calcium sulfate, and alkali activator contents) were studied for two slags with different chemical compositions, mainly the content. The results showed the slag characteristics and the alkaline activator content played a very important role in the process of hydration. The SSC made using high-alumina slag exhibited higher compressive strength (55 MPa at 28 days with 88% slag) and the use of higher activator contents decreased the compressive strength, heat release, ettringite formation, and degree of hydration.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors wish to thank Coordination for the Improvement of Higher Education Personnel (CAPES) in Brazil for its support (483661/2013-9), together with the Natural Sciences and Engineering Research Council of Canada (Grant No. RGPIN 108067).
References
Angulski da Luz, C., and R. D. Hooton. 2015. “Influence of curing temperature on the process of hydration of supersulfated cements at early age.” Cem. Concr. Res. 77 (Nov): 69–75. https://doi.org/10.1016/j.cemconres.2015.07.002.
ASTM. 2016. Standard specification for compressive strength of hydraulic cement mortars (using 2-in. or [50-mm] cube specimens). ASTM C109. West Conshohocken, PA: ASTM.
Bijen, J., and E. Niel. 1981. “Supersulphated cement from blast furnace slag and gypsum available in the Netherlands and neighbouring countries.” Cem. Concr. Res. 11 (3): 307–322. https://doi.org/10.1016/0008-8846(81)90104-6.
CEN (European Committee for Standardization). 2010. Supersulfated cement-composition, specification and conformity criteria. EN 15743. Brussels, Belgium: CEN.
CSA (Canadian Standards Association). 2013. Cementitious materials used in concrete. CSA A3001. Rexdale, ON, Canada: CSA.
DIN (Deutsches Institutfür Normung). 1959. Sulfathüttenzement. DIN 4210. Berlin: DIN.
Dutta, D. K., and P. C. Borthakur. 1990. “Activation of low lime high alumina granulated blast furnace slag by anhydrite.” Cem. Concr. Res. 20 (5): 711–722. https://doi.org/10.1016/0008-8846(90)90005-I.
Erdem, E., and H. Olmez. 1993. “The mechanical properties of supersulphated cement containing phosphogypsum.” Cem. Concr. Res. 23 (1): 115–121. https://doi.org/10.1016/0008-8846(93)90141-U.
Grounds, Z., D. V. Nowell, and F. W. Wilburn. 1994. “The influence of temperature and different storage conditions on the stability of supersulphated cement.” J. Therm. Anal. 41 (2–3): 687–699. https://doi.org/10.1007/BF02549342.
Grounds, Z., D. V. Nowell, and F. W. Wilburn. 2003. “Resistance of supersulphated cement to strong sulfate solutions.” J. Therm. Anal. Calorim. 72 (1): 181–190. https://doi.org/10.1023/A:1023928021602.
Gruskovnjak, A., B. Lothenbach, F. Winnefeld, R. Figi, S-C Ko, M. Adler, and U. Mäder. 2008. “Hydration mechanisms of super sulphated slag cement.” Cem. Concr. Res. 38 (7): 983–992. https://doi.org/10.1016/j.cemconres.2008.03.004.
Juenger, M. C. G., F. Winnefeld, J. L. Provis, and J. H. Ideker. 2011. “Advances in alternative cementitious binders.” Cem. Concr. Res. 41 (12): 1232–1243. https://doi.org/10.1016/j.cemconres.2010.11.012.
Liu, S., L. Wang, Y. Gao, B. Yu, and W. Tang. 2015. “Influence of fineness on hydration kinetics of supersulfated cement.” Thermochim. Acta 605 (Apr): 37–42. https://doi.org/10.1016/j.tca.2015.02.013.
Matschei, T., F. Bellmann, and J. Stark. 2005. “Hydration behaviour of sulphate-activated slag cements.” Adv. Cem. Res. 17 (4): 167–178. https://doi.org/10.1680/adcr.2005.17.4.167.
Mehrotra, V. P., A. S. R. Sai, and P. C. Kapur. 1982. “Plaster of Paris activated supersulfated slag cement.” Cem. Concr. Res. 12 (4): 463–473. https://doi.org/10.1016/0008-8846(82)90061-8.
Mun, K. J., W. K. Hyoung, C. W. Lee, S. Y. So, and Y. S. Soh. 2007. “Basic properties of non-sintering cement using phosphogypsum and waste lime as activator.” Constr. Build. Mater. 21 (6): 1342–1350. https://doi.org/10.1016/j.conbuildmat.2005.12.022.
Rubert, S., C. Angulski da Luz, M. V. F. Varela, J. I. Pereira Filho, and R. D. Hooton. 2018. “Hydration mechanisms of supersulfated cement.” J. Therm. Anal. Calorim. 134 (2): 1–10. https://doi.org/10.1007/s10973-018-7243-6.
Singh, M., and M. Garg. 2002. “Calcium sulfate hemihydrate activated low heat sulfate resistant cement.” Constr. Build. Mater. 16 (3): 181–186. https://doi.org/10.1016/S0950-0618(01)00026-5.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 31 • Issue 6 • June 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Mar 1, 2018
Accepted: Dec 3, 2018
Published online: Apr 6, 2019
Published in print: Jun 1, 2019
Discussion open until: Sep 6, 2019
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.