Dynamic constitutive model of concrete after salt corrosion

Nie Liangxue; Xu Jinyu; Liu Zhiqun; Luo Xin

doi:10.11883/1001-1455(2017)04-0712-07

Volume 37 Issue 4

May 2017

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Nie Liangxue, Xu Jinyu, Liu Zhiqun, Luo Xin. Dynamic constitutive model of concrete after salt corrosion[J]. Explosion And Shock Waves, 2017, 37(4): 712-718. doi: 10.11883/1001-1455(2017)04-0712-07

Citation:

Nie Liangxue, Xu Jinyu, Liu Zhiqun, Luo Xin. Dynamic constitutive model of concrete after salt corrosion[J]. Explosion And Shock Waves, 2017, 37(4): 712-718. doi: 10.11883/1001-1455(2017)04-0712-07

Nie Liangxue, Xu Jinyu, Liu Zhiqun, Luo Xin. Dynamic constitutive model of concrete after salt corrosion[J]. Explosion And Shock Waves, 2017, 37(4): 712-718. doi: 10.11883/1001-1455(2017)04-0712-07

Citation:

Nie Liangxue, Xu Jinyu, Liu Zhiqun, Luo Xin. Dynamic constitutive model of concrete after salt corrosion[J]. Explosion And Shock Waves, 2017, 37(4): 712-718. doi: 10.11883/1001-1455(2017)04-0712-07

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Dynamic constitutive model of concrete after salt corrosion

doi: 10.11883/1001-1455(2017)04-0712-07

Nie Liangxue^{1, 2
,},
Xu Jinyu^{1, 3},
Liu Zhiqun¹,
Luo Xin⁴

1.
Department of Airfield and Building Engineering, Air Force Engineering University, Xi'an 710038, Shaanxi, China
2.
State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China
3.
College of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi'an 710072, Shaanxi, China
4.
Construction Engineering Planning & Design Institute, Logistic Support Department, Central Military Commission, People's Republic of China, Beijing 100062, China

Received Date: 2015-12-12
Rev Recd Date: 2016-04-18
Publish Date: 2017-07-25

Abstract

Abstract

To explore the dynamic mechanical behaviors of the concrete corroded by salt solution, we fabricated concrete specimens of ordinary Portland cement with fly ash of 15% mass fraction and, having them immersed for 60 d in NaCl and Na₂SO₄ solutions with a 15% mass fraction, studied their dynamic mechanical properties using a ∅100 mm split Hopkinson pressure bar apparatus. Then, based on the macro phase-only statistical damage theory and the Weibull distribution theory, we built a dynamic statistical damage constitutive model for the specimen's mechanical behaviors. The results indicate that the dynamic compressive strength of the corroded specimens experiences a significant decrease, and the declines of the specimens corroded by NaCl are bigger than those corroded by Na₂SO₄. Based on the closely fitted curves of the model and the experiment, this established model can accurately estimate the dynamic mechanical behaviors of concrete under impact loading.
- salt corrosion,
- concrete,
- dynamic compressive strength,
- damage theory,
- Weibull distribution,
- constitutive model

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References(14)

References

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