An Experimental Study of Dynamic Compression Performance of Self-Compacting Concrete
Abstract
:1. Introduction
2. Experimental Scheme
2.1. Specimen Preparation
2.2. Loading Program
3. Results and Analysis
3.1. Failure Pattern
3.2. Stress–Strain Curve
3.3. Peak Stress
3.4. Elastic Modulus
3.5. Peak Strain
4. Constitutive Theory of Dynamic Elastic–Plastic Damage
4.1. Constitutive Theory of Elastic–Plastic Damage
4.2. Dynamic Expansion of Damage Energy Release Rate
4.3. Experimental Verification
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Concrete Strength | Mass of Ingredients of Concrete Per Cubic Meter/Kg | |||||
---|---|---|---|---|---|---|
Cement | Water | Coarse Aggregate | Fine Aggregate | Slag | Superplasticizer | |
C30 | 178 | 279 | 1034 | 780 | - | - |
SCC30 | 300 | 123 | 865 | 781 | 200 | 3.20 |
Types | Chemical Composition/% | ||||||||
---|---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | MgO | CaO | SO3 | R2O | MnO | H2O | |
Cement | 20.80 | 5.53 | 3.89 | 1.70 | 62.31 | 2.62 | 0.52 | 0 | 0 |
Slag | 23.35 | 13.42 | 14.03 | 7.56 | 37.46 | 0 | 0.61 | 0 | 0 |
Strain Rate | Ordinary Concrete | SCC | ||
---|---|---|---|---|
Elastic Modulus | Dynamic Increase Coefficient | Elastic Modulus | Dynamic Increase Coefficient | |
1.0 × 10−5 | 14.83 | 1.00 | 14.18 | 1.00 |
5.0 × 10−5 | 15.08 | 1.02 | 16.23 | 1.14 |
1.0 × 10−4 | 17.34 | 1.17 | 17.89 | 1.26 |
5.0 × 10−4 | 17.76 | 1.20 | 18.82 | 1.33 |
1.0 × 10−3 | 18.30 | 1.23 | 19.38 | 1.37 |
5.0 × 10−3 | 19.36 | 1.31 | 20.05 | 1.41 |
1.0 × 10−2 | 20.24 | 1.36 | 20.94 | 1.48 |
5.0 × 10−2 | 20.56 | 1.39 | 21.99 | 1.55 |
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Shi, F.; Cao, P.; Wang, Z.; Gan, Y.; Zhou, C.; Liu, K. An Experimental Study of Dynamic Compression Performance of Self-Compacting Concrete. Materials 2020, 13, 3731. https://doi.org/10.3390/ma13173731
Shi F, Cao P, Wang Z, Gan Y, Zhou C, Liu K. An Experimental Study of Dynamic Compression Performance of Self-Compacting Concrete. Materials. 2020; 13(17):3731. https://doi.org/10.3390/ma13173731
Chicago/Turabian StyleShi, Feiting, Peng Cao, Ziyu Wang, Yanan Gan, Changjun Zhou, and Ketong Liu. 2020. "An Experimental Study of Dynamic Compression Performance of Self-Compacting Concrete" Materials 13, no. 17: 3731. https://doi.org/10.3390/ma13173731