Effects of Calcination Conditions on the Formation and Hydration Performance of High-Alite White Portland Cement Clinker
School of Materials Science and Engineering, Nanchang University, Nanchang 330031, Jiangxi Province, China
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Materials 2020, 13(3), 494; https://doi.org/10.3390/ma13030494
Received: 7 December 2019
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Revised: 17 January 2020
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Accepted: 19 January 2020
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Published: 21 January 2020
(This article belongs to the Special Issue New Findings of Portland Cementitious Materials)
The purpose of this study was to evaluate the effects of sintering temperature and sintering time on mineral composition of high-alite white Portland cement clinker and hydration activity of the clinker. Effects of sintering temperature and sintering time on clinker mineral composition, C3S polymorph and size and hydration heat release rate were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), differential scanning calorimetry&Thermogravimetric Analysis (DSC-TG) and isothermal heat-conduction calorimetry. Results shown that, with the increase of sintering temperature (1450–1525 °C) and sintering time (60–240 min), free lime (f-CaO) in clinker decreased, C3S grain size increased, and C3S crystal type changed from T3 to M type and R type, which exhibits higher symmetry. The hydration activity of different C3S crystals ranged from high to low as follows: T3→M1→M3→[email protected]
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Keywords:
white Portland cement clinker; sintering temperature; sintering time; rietveld quantitative analysis; hydration performance
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MDPI and ACS Style
Huang, L.; Cheng, G.; Huang, S. Effects of Calcination Conditions on the Formation and Hydration Performance of High-Alite White Portland Cement Clinker. Materials 2020, 13, 494. https://doi.org/10.3390/ma13030494
AMA Style
Huang L, Cheng G, Huang S. Effects of Calcination Conditions on the Formation and Hydration Performance of High-Alite White Portland Cement Clinker. Materials. 2020; 13(3):494. https://doi.org/10.3390/ma13030494
Chicago/Turabian StyleHuang, Lei, Geling Cheng, and Shaowen Huang. 2020. "Effects of Calcination Conditions on the Formation and Hydration Performance of High-Alite White Portland Cement Clinker" Materials 13, no. 3: 494. https://doi.org/10.3390/ma13030494
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