A series of uniaxial compression tests and simulations were conducted to evaluate the influences of single coarse aggregate (CA) size on the mechanical properties of concrete and their uncertainties. In this research, the specimens of pure mortar matrix and specimens with diameter 15 mm and 30 mm of single spherical steel aggregate were fabricated and tested by a material testing system. Based on experimental results, the mechanical parameters, including the elastic modulus, compressive strength, strain at the peak stress and absorbed strain energy were investigated. It was found that larger size of CA results in higher elastic modulus and compressive strength. Meanwhile, the strain at peak stress and absorbed strain energy of concrete are non-linear with the size of CA. And then, the mechanical properties were analyzed in the aspect of ITZ which is closely related to the size of CA. In addition, simulation results were presented to discuss the stress distribution of different size CA in specimen. In conclusion, the CA size has significant effect on the uncertainty of elastic modulus, strain at the peak stress and absorbed strain energy, but has little effect on the compressive strength. The findings from the current study will help gain the insights into the non-linear and uncertain mechanical behaviors of concrete.
| Published in | Advances in Materials (Volume 8, Issue 3) |
| DOI | 10.11648/j.am.20190803.11 |
| Page(s) | 100-107 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Concrete, Coarse Aggregate, Mechanical Property, Uncertainty, Non-linear
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APA Style
Ping Liu. (2019). Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete. Advances in Materials, 8(3), 100-107. https://doi.org/10.11648/j.am.20190803.11
ACS Style
Ping Liu. Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete. Adv. Mater. 2019, 8(3), 100-107. doi: 10.11648/j.am.20190803.11
AMA Style
Ping Liu. Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete. Adv Mater. 2019;8(3):100-107. doi: 10.11648/j.am.20190803.11
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Download@article{10.11648/j.am.20190803.11,
author = {Ping Liu},
title = {Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete},
journal = {Advances in Materials},
volume = {8},
number = {3},
pages = {100-107},
doi = {10.11648/j.am.20190803.11},
url = {https://doi.org/10.11648/j.am.20190803.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.am.20190803.11},
abstract = {A series of uniaxial compression tests and simulations were conducted to evaluate the influences of single coarse aggregate (CA) size on the mechanical properties of concrete and their uncertainties. In this research, the specimens of pure mortar matrix and specimens with diameter 15 mm and 30 mm of single spherical steel aggregate were fabricated and tested by a material testing system. Based on experimental results, the mechanical parameters, including the elastic modulus, compressive strength, strain at the peak stress and absorbed strain energy were investigated. It was found that larger size of CA results in higher elastic modulus and compressive strength. Meanwhile, the strain at peak stress and absorbed strain energy of concrete are non-linear with the size of CA. And then, the mechanical properties were analyzed in the aspect of ITZ which is closely related to the size of CA. In addition, simulation results were presented to discuss the stress distribution of different size CA in specimen. In conclusion, the CA size has significant effect on the uncertainty of elastic modulus, strain at the peak stress and absorbed strain energy, but has little effect on the compressive strength. The findings from the current study will help gain the insights into the non-linear and uncertain mechanical behaviors of concrete.},
year = {2019}
}
TY - JOUR T1 - Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete AU - Ping Liu Y1 - 2019/07/19 PY - 2019 N1 - https://doi.org/10.11648/j.am.20190803.11 DO - 10.11648/j.am.20190803.11 T2 - Advances in Materials JF - Advances in Materials JO - Advances in Materials SP - 100 EP - 107 PB - Science Publishing Group SN - 2327-252X UR - https://doi.org/10.11648/j.am.20190803.11 AB - A series of uniaxial compression tests and simulations were conducted to evaluate the influences of single coarse aggregate (CA) size on the mechanical properties of concrete and their uncertainties. In this research, the specimens of pure mortar matrix and specimens with diameter 15 mm and 30 mm of single spherical steel aggregate were fabricated and tested by a material testing system. Based on experimental results, the mechanical parameters, including the elastic modulus, compressive strength, strain at the peak stress and absorbed strain energy were investigated. It was found that larger size of CA results in higher elastic modulus and compressive strength. Meanwhile, the strain at peak stress and absorbed strain energy of concrete are non-linear with the size of CA. And then, the mechanical properties were analyzed in the aspect of ITZ which is closely related to the size of CA. In addition, simulation results were presented to discuss the stress distribution of different size CA in specimen. In conclusion, the CA size has significant effect on the uncertainty of elastic modulus, strain at the peak stress and absorbed strain energy, but has little effect on the compressive strength. The findings from the current study will help gain the insights into the non-linear and uncertain mechanical behaviors of concrete. VL - 8 IS - 3 ER -
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