Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage

Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage

To study the freeze-thaw damage characteristics of concrete, the uniaxial compressive tests of concrete under different number of freeze-thaw cycles were conducted, and the damage variable of freeze-thaw was obtained. The test results showed that the stress was a function of strain and freeze-thaw d...

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Main Authors: Xiaolin Yang, Genhui Wang, Shiwu Gao, Min Song, Anqi Wang
Format: Article
Language:English
Published: Hindawi Limited 2019-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2019/8603065
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spelling doaj-136cd21eebfb43199dc92b81d7edfe3a2020-11-25T01:49:19ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/86030658603065Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw DamageXiaolin Yang0Genhui Wang1Shiwu Gao2Min Song3Anqi Wang4School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, ChinaSchool of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, ChinaSchool of Civil Engineering, Qinghai University, Xining, Qinghai 810016, ChinaInstitute of Applied Mechanics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, ChinaSchool of Civil Engineering, Qinghai University, Xining, Qinghai 810016, ChinaTo study the freeze-thaw damage characteristics of concrete, the uniaxial compressive tests of concrete under different number of freeze-thaw cycles were conducted, and the damage variable of freeze-thaw was obtained. The test results showed that the stress was a function of strain and freeze-thaw damage variable, and it can describe the degradation of concrete strength. Meanwhile, the equation for the stress-strain curved surface about strain and freeze-thaw damage variable was also proposed in this paper. The derivative function of the stress-strain curved surface equation with respect to strain presented the change of elastic modulus with the increase of freeze-thaw cycle number. Equation proposed in this paper can be used for predicting the concrete lifetime effectively in cold and large temperature difference regions.http://dx.doi.org/10.1155/2019/8603065
collection DOAJ
language English
format Article
sources DOAJ
author Xiaolin Yang
Genhui Wang
Shiwu Gao
Min Song
Anqi Wang
spellingShingle Xiaolin Yang
Genhui Wang
Shiwu Gao
Min Song
Anqi Wang
Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
Advances in Materials Science and Engineering
author_facet Xiaolin Yang
Genhui Wang
Shiwu Gao
Min Song
Anqi Wang
author_sort Xiaolin Yang
title Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
title_short Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
title_full Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
title_fullStr Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
title_full_unstemmed Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage
title_sort equation for the degradation of uniaxial compression stress of concrete due to freeze-thaw damage
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2019-01-01
description To study the freeze-thaw damage characteristics of concrete, the uniaxial compressive tests of concrete under different number of freeze-thaw cycles were conducted, and the damage variable of freeze-thaw was obtained. The test results showed that the stress was a function of strain and freeze-thaw damage variable, and it can describe the degradation of concrete strength. Meanwhile, the equation for the stress-strain curved surface about strain and freeze-thaw damage variable was also proposed in this paper. The derivative function of the stress-strain curved surface equation with respect to strain presented the change of elastic modulus with the increase of freeze-thaw cycle number. Equation proposed in this paper can be used for predicting the concrete lifetime effectively in cold and large temperature difference regions.
url http://dx.doi.org/10.1155/2019/8603065
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AT shiwugao equationforthedegradationofuniaxialcompressionstressofconcreteduetofreezethawdamage
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