Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete
High-strength concrete (HSC) is widely used in engineering due to its high strength and durability. However, because of its low water-to-cement ratio, external curing water hardly enters the dense internal structure of HSC so that high self-desiccation shrinkage often takes place. As a result, super...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6651452 |
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| author | Xiao Lei Rui Wang Hanwan Jiang Faxiang Xie Yanni Bao |
| author_facet | Xiao Lei Rui Wang Hanwan Jiang Faxiang Xie Yanni Bao |
| author_sort | Xiao Lei |
| collection | DOAJ |
| description | High-strength concrete (HSC) is widely used in engineering due to its high strength and durability. However, because of its low water-to-cement ratio, external curing water hardly enters the dense internal structure of HSC so that high self-desiccation shrinkage often takes place. As a result, superabsorbent polymers (SAP) are added as an internal curing material to effectively reduce the shrinkage of high-performance concrete. Meanwhile, the bond performance between reinforcing steel and SAP HSC concrete remains unknown. In this paper, the bond performance of HSC mixed with SAP is studied by pull-out tests, and the results were obtained as follows: (1) the bond strength of HSC mixed with SAP increased first and then decreased with the increase of SAP content; (2) the slip at ultimate bond strength of HSC with SAP decreased with the increase of compressive strength; (3) a prediction model of the stress-slip relationship between steel rebars and HSC was established. |
| format | Article |
| id | doaj-art-f009a4788e414001b683aa3511bde27e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f009a4788e414001b683aa3511bde27e2025-02-03T06:43:31ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/66514526651452Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength ConcreteXiao Lei0Rui Wang1Hanwan Jiang2Faxiang Xie3Yanni Bao4College of Civil and Transportation Engineering, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaCollege of Civil and Transportation Engineering, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaCollege of Engineering, Mathematics and Science, Department of Civil Engineering, University of Wisconsin Platteville, 1 University Plaza, Platteville, WI 53818, USACollege of Civil and Transportation Engineering, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, ChinaTongji Architectural Design (Group) Co. Ltd., Shanghai 20092, ChinaHigh-strength concrete (HSC) is widely used in engineering due to its high strength and durability. However, because of its low water-to-cement ratio, external curing water hardly enters the dense internal structure of HSC so that high self-desiccation shrinkage often takes place. As a result, superabsorbent polymers (SAP) are added as an internal curing material to effectively reduce the shrinkage of high-performance concrete. Meanwhile, the bond performance between reinforcing steel and SAP HSC concrete remains unknown. In this paper, the bond performance of HSC mixed with SAP is studied by pull-out tests, and the results were obtained as follows: (1) the bond strength of HSC mixed with SAP increased first and then decreased with the increase of SAP content; (2) the slip at ultimate bond strength of HSC with SAP decreased with the increase of compressive strength; (3) a prediction model of the stress-slip relationship between steel rebars and HSC was established.http://dx.doi.org/10.1155/2020/6651452 |
| spellingShingle | Xiao Lei Rui Wang Hanwan Jiang Faxiang Xie Yanni Bao Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete Advances in Materials Science and Engineering |
| title | Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete |
| title_full | Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete |
| title_fullStr | Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete |
| title_full_unstemmed | Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete |
| title_short | Effect of Internal Curing with Superabsorbent Polymers on Bond Behavior of High-Strength Concrete |
| title_sort | effect of internal curing with superabsorbent polymers on bond behavior of high strength concrete |
| url | http://dx.doi.org/10.1155/2020/6651452 |
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