Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Clinker Characterization
3.1.1. XRD Analysis
3.1.2. SEM-EDS Analysis
3.2. Cements Characterization
3.2.1. XRD Analysis
3.2.2. TG-DTG Analysis
3.2.3. Mechanical Strength
3.2.4. SEM-EDS Analysis
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Chemical | Raw Materials | Clinker | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Limestone [wt %] | Gypsum [wt %] | Clay [wt %] | Slag [wt %] | Fly ash [wt %] | Bauxite [wt %] | [wt %] | |||||
CaCO3 | 99.5 | CaSO4۔2H2O | 83.53 | Chemical | Mineralogical | ||||||
CaO | 97.2 | 34.5 | 3.33 | 3.8 | 41.8 | 4.5 | 0.3 | C4A3$ | 45 | ||
Na2O | 0.0 | 0.0 | 0.9 | 1.0 | 0.6 | 0.5 | 0.1 | C5S2$ | 20 | ||
MgO | 0.2 | 0.4 | 2 | 2.3 | 7.1 | 2.0 | 0.4 | C2S | 20 | ||
Al2O3 | 0.9 | 0.5 | 18 | 20.6 | 7.7 | 25.5 | 89.0 | C4AF | 8 | ||
SiO2 | 1.6 | 2.1 | 53 | 60.5 | 41.4 | 55.7 | 5.7 | C$ | 7 | ||
SO3 | 0.0 | 62.1 | 0.2 | 0.2 | 0.6 | 0.9 | 1.2 | ||||
K2O | 0.1 | 0.1 | 3.13 | 3.6 | 0.6 | 2.6 | 0.8 | ||||
Fe2O3 | 0.0 | 0.3 | 7 | 8.0 | 0.2 | 8.2 | 2.5 |
Sample | CI | CIIAS | CIIBM | CP | |
---|---|---|---|---|---|
SSP Blaine (cm2/g) | 2580 | 3055 | 2676 | 4600 | |
Compressive strength (MPa) | 2 days | 31.6 | 33 | 22.9 | 37.2 |
7 days | 31.5 | 39.5 | 27.2 | - | |
28 days | 60.9 | 42 | 43 | 65 |
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Marin, B.-C.; Voicu, G.; Stoleriu, S. Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative. Materials 2021, 14, 7057. https://doi.org/10.3390/ma14227057
Marin B-C, Voicu G, Stoleriu S. Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative. Materials. 2021; 14(22):7057. https://doi.org/10.3390/ma14227057
Chicago/Turabian StyleMarin, Bogdan-Catalin, Georgeta Voicu, and Stefania Stoleriu. 2021. "Synthesis of High-Performance CSA Cements as Low Carbon OPC Alternative" Materials 14, no. 22: 7057. https://doi.org/10.3390/ma14227057