Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width
The importance of an accurate simulation of service conditions in the bond performance of reinforced concrete structures in coastal regions is highlighted. Four widths of initial crack of 0, 80, 150, and 210 microns were artificially made by inserting slice into bond specimens during concrete castin...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/8205081 |
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| author | Papa Niane Faye Yinghua Ye Bo Diao |
| author_facet | Papa Niane Faye Yinghua Ye Bo Diao |
| author_sort | Papa Niane Faye |
| collection | DOAJ |
| description | The importance of an accurate simulation of service conditions in the bond performance of reinforced concrete structures in coastal regions is highlighted. Four widths of initial crack of 0, 80, 150, and 210 microns were artificially made by inserting slice into bond specimens during concrete casting. Three bar diameters of 10 mm, 14 mm, and 18 mm were selected. At 28 days, the bond specimens were exposed to the environment of wet-dry cycles of seawater and atmosphere for another 90 days. The pull-out test was then conducted and chloride contents were tested at crack area along 40 mm depth. Results show that, for the specimen with 10 mm bar diameter, cracks width of less than 80 microns vanished rapidly during wet-dry cycles; for other specimens, cracks width of 100–150 microns decreased slightly. However the cracks of width more than 200 microns increased gradually; the chloride content decreased along the depth of concrete, and the chloride content increased as the widths of initial cracks increased or as the bar diameters increased. The ductility of bond specimens decreased as the diameter increased. |
| format | Article |
| id | doaj-art-a3070ae9fb364e22bd10023f339da12b |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a3070ae9fb364e22bd10023f339da12b2025-02-03T06:06:04ZengWileyAdvances in Civil Engineering1687-80861687-80942017-01-01201710.1155/2017/82050818205081Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack WidthPapa Niane Faye0Yinghua Ye1Bo Diao2School of Transportation Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Transportation Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Transportation Science and Engineering, Beihang University, Beijing 100191, ChinaThe importance of an accurate simulation of service conditions in the bond performance of reinforced concrete structures in coastal regions is highlighted. Four widths of initial crack of 0, 80, 150, and 210 microns were artificially made by inserting slice into bond specimens during concrete casting. Three bar diameters of 10 mm, 14 mm, and 18 mm were selected. At 28 days, the bond specimens were exposed to the environment of wet-dry cycles of seawater and atmosphere for another 90 days. The pull-out test was then conducted and chloride contents were tested at crack area along 40 mm depth. Results show that, for the specimen with 10 mm bar diameter, cracks width of less than 80 microns vanished rapidly during wet-dry cycles; for other specimens, cracks width of 100–150 microns decreased slightly. However the cracks of width more than 200 microns increased gradually; the chloride content decreased along the depth of concrete, and the chloride content increased as the widths of initial cracks increased or as the bar diameters increased. The ductility of bond specimens decreased as the diameter increased.http://dx.doi.org/10.1155/2017/8205081 |
| spellingShingle | Papa Niane Faye Yinghua Ye Bo Diao Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width Advances in Civil Engineering |
| title | Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width |
| title_full | Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width |
| title_fullStr | Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width |
| title_full_unstemmed | Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width |
| title_short | Bond Effects between Concrete and Steel Bar Using Different Diameter Bars and Different Initial Crack Width |
| title_sort | bond effects between concrete and steel bar using different diameter bars and different initial crack width |
| url | http://dx.doi.org/10.1155/2017/8205081 |
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