Thermally Insulating, Thermal Shock Resistant Calcium Aluminate Phosphate Cement Composites for Reservoir Thermal Energy Storage
Abstract
:1. Introduction
2. Materials and Methods
2.1. Starting Materials
2.2. Cement Formulas and Samples Preparation
2.3. Measurements
3. Results and Discussion
3.1. Hydrothermal Stability of HSA
3.2. Slurry Properties
3.3. Pozzolanic and Mechanical Behaviors of Aggregates and Reinforcements
3.3.1. Neat CaP Cement
3.3.2. CaP/FCS System
3.3.3. CaP/HSA System
3.3.4. CaP/MGF System
3.3.5. CaP/MCF System
3.3.6. Mechanic Properties
3.3.7. Calorimetric Study of CaP Composites in Hydration
3.4. Compressive Strength and Toughness of 100 and 250 °C-Autoclaved CaP Cement Composites before and after Thermal Shock (TS) Tests
3.5. Thermal Conductivity
3.6. ATR-FTIR, XRD, and SEM-EDX Studies of CaP Cement Composites
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
References
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Component | Oxide Composition, wt% | |||||||
---|---|---|---|---|---|---|---|---|
Al2O3 | CaO | SiO2 | Fe2O3 | Na2O | K2O | TiO2 | MgO | |
CAC, #71 | 55.8 | 44.0 | - | 0.2 | - | - | - | - |
HSA | - | - | 100 | - | - | - | - | - |
FCS | 35.0 | 2.7 | 50.1 | 7.1 | 0.30 | 3.1 | 1.6 | - |
E-type MGF | 11.4 | 28.6 | 55.0 | 0.9 | 0.6 | - | 0.7 | 2.8 |
Property | FCS/HSA Weight Ratio | ||||
---|---|---|---|---|---|
100/0 | 94/6 | 90/10 | 88/12 | 83/17 | |
W/B ratio | 0.53 | 0.49 | 0.5 | 0.54 | 0.55 |
Density, g/cm3 | 1.29 | 1.21 | 1.18 | 1.08 | 1.07 |
Slump, mm | 78 | 82 | 83 | 80 | 79 |
pH | 10.15 | 10.23 | 10.30 | 10.42 | 10.58 |
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Sugama, T.; Pyatina, T. Thermally Insulating, Thermal Shock Resistant Calcium Aluminate Phosphate Cement Composites for Reservoir Thermal Energy Storage. Materials 2022, 15, 6328. https://doi.org/10.3390/ma15186328
Sugama T, Pyatina T. Thermally Insulating, Thermal Shock Resistant Calcium Aluminate Phosphate Cement Composites for Reservoir Thermal Energy Storage. Materials. 2022; 15(18):6328. https://doi.org/10.3390/ma15186328
Chicago/Turabian StyleSugama, Toshifumi, and Tatiana Pyatina. 2022. "Thermally Insulating, Thermal Shock Resistant Calcium Aluminate Phosphate Cement Composites for Reservoir Thermal Energy Storage" Materials 15, no. 18: 6328. https://doi.org/10.3390/ma15186328