Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation
Shrinkage has been proven to be an important property of early age concrete. The shrinkage strain leads to inherent engineering problems, such as cracking and loss of prestress. Atmospheric temperature is an important factor in shrinkage strain. However, current research does not provide much attent...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/3627251 |
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| author | Yu Qin Zhijian Yi Weina Wang Di Wang |
| author_facet | Yu Qin Zhijian Yi Weina Wang Di Wang |
| author_sort | Yu Qin |
| collection | DOAJ |
| description | Shrinkage has been proven to be an important property of early age concrete. The shrinkage strain leads to inherent engineering problems, such as cracking and loss of prestress. Atmospheric temperature is an important factor in shrinkage strain. However, current research does not provide much attention to the effect of atmospheric temperature on shrinkage of early age concrete. In this paper, a laboratory study was undertaken to present the time-dependent shrinkage of early age concrete under temperature variation. A newly developed Material Deformation Tester (MDT), which can simulate consecutive variation of atmospheric temperature, was used to collect the shrinkage strain of specimens and temperature data. A numerical model was established to describe the thermoelastic strain of a specimen. The results show that (1) there are several sharp shrinkages up to 600 μ for early age concrete in the first 3 days; (2) the absolute value of shrinkage strain is larger than thermal strain; and (3) the difference of shrinkage strain under temperature variation or constant temperature is up to 500 μ. |
| format | Article |
| id | doaj-art-ac75c34f9f7b4c42bbf6ac67f7fc3410 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ac75c34f9f7b4c42bbf6ac67f7fc34102025-02-03T05:46:29ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/36272513627251Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature VariationYu Qin0Zhijian Yi1Weina Wang2Di Wang3School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaPavement Engineering Center, Technical University of Braunschweig, 38106 Braunschweig, GermanyShrinkage has been proven to be an important property of early age concrete. The shrinkage strain leads to inherent engineering problems, such as cracking and loss of prestress. Atmospheric temperature is an important factor in shrinkage strain. However, current research does not provide much attention to the effect of atmospheric temperature on shrinkage of early age concrete. In this paper, a laboratory study was undertaken to present the time-dependent shrinkage of early age concrete under temperature variation. A newly developed Material Deformation Tester (MDT), which can simulate consecutive variation of atmospheric temperature, was used to collect the shrinkage strain of specimens and temperature data. A numerical model was established to describe the thermoelastic strain of a specimen. The results show that (1) there are several sharp shrinkages up to 600 μ for early age concrete in the first 3 days; (2) the absolute value of shrinkage strain is larger than thermal strain; and (3) the difference of shrinkage strain under temperature variation or constant temperature is up to 500 μ.http://dx.doi.org/10.1155/2017/3627251 |
| spellingShingle | Yu Qin Zhijian Yi Weina Wang Di Wang Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation Advances in Materials Science and Engineering |
| title | Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation |
| title_full | Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation |
| title_fullStr | Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation |
| title_full_unstemmed | Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation |
| title_short | Time-Dependent Behavior of Shrinkage Strain for Early Age Concrete Affected by Temperature Variation |
| title_sort | time dependent behavior of shrinkage strain for early age concrete affected by temperature variation |
| url | http://dx.doi.org/10.1155/2017/3627251 |
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