High-Temperature Behavior of Carbon Reinforced Concrete
Abstract
:1. Introduction
2. Investigations on the Mass Change of the Textile Carbon Reinforcement under Temperature Load
2.1. Specimens and Test Procedure
2.2. Results of the Experimental Investigations
- Evolution of decomposition of the coating until start of oxidation of the carbon:
- Beginning of oxidation of the carbon until complete decomposition of the textile reinforcement:
3. Investigation of the Tensile Behavior of Carbon Reinforced Concrete under Temperature Stress
3.1. Material and Specimens
3.2. Experimental Setup and Test Program
4. Results and Discussion
4.1. Load-Bearing Behavior at Normal Temperature
4.2. Load-Independent Strains from the Stationary Tests
4.3. Tensile Carrying Capacity
- Temperatures up to 400 °C:
- Temperatures from 400 °C to the temperature of complete loss of load-bearing capacity:
4.4. Derivation of Temperature-Dependent Material Parameters
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Component | Mass Parts [-] | Quantity [kg/m3] |
---|---|---|
Cement CEM III/B 32.5 NW/HS/NA (Schwenk) | 0.6667 | 628.0 |
Coal fly ash (BauMineral Herten) | 0.282 | 265.6 |
Microsilicon suspension (Woermann/Degussa/BASF) | 0.1067 | 100.5 |
Sand 0/1 (Ottendorf-Okrilla) | 1.00 | 942.0 |
Water | 0.2278 | 214.6 |
Superplasticizer Woerment FM 30 (Woermann) | 0.0125 | 10.5 |
Characteristics | Unit | Value |
---|---|---|
Compressive strength | N/mm2 | 76.3 |
Flexural strength | N/mm2 | 7.11 |
Young’s modulus | N/mm2 | 28,500 |
Density | N/mm2 | 2.17 |
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Ehlig, D.; Schumann, A.; Nietner, L. High-Temperature Behavior of Carbon Reinforced Concrete. Buildings 2024, 14, 364. https://doi.org/10.3390/buildings14020364
Ehlig D, Schumann A, Nietner L. High-Temperature Behavior of Carbon Reinforced Concrete. Buildings. 2024; 14(2):364. https://doi.org/10.3390/buildings14020364
Chicago/Turabian StyleEhlig, Daniel, Alexander Schumann, and Lutz Nietner. 2024. "High-Temperature Behavior of Carbon Reinforced Concrete" Buildings 14, no. 2: 364. https://doi.org/10.3390/buildings14020364