| Shrinkage Behavior of High Performance Concrete at Different Elevated Temperatures under Different Sealing Conditions |
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| 作者姓名： | PAN Zhihua NAKAMURA Hidemi WEE Tionghuan |
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| 作者单位： | [1]College of Materials Science ＆ Engineering, Nanjing University of Technology,Nanjing 210009, China [2]Research and Development Center, Taiheiyo Cement Corporation, Chiba 285-8655, Japan [3]Department of Civil Engineering, National University of Singapore, Singapore |
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| 摘 要： | The shrinkage behavior of high performance cement concrete made from Portland cement, ultra fine granulated blast furnace slag and pulverized fly ash with addition of superplasticizer at different temperatures from ambient temperature to 120 ℃ under different seuliug conditions was investigated by means of length change measurement on cylindrical concrete specimens along with curing age. Results show that drying shrinkage deformations of titled concrete specimens increased rapidly as the curing temperature rose. The development of dryiing shrinkage deformatian can be efficiently controlled with the aid of aluminum tape sealing as compared with the unsealed specimens, especially when the curing temperature is below 60℃ , although it will increase dramatically when the curing temperature is elevated to above 90%＂ . Polymer coating on concrete specimens showed a similar effect on the control of drying shrinkage as the sealing operation with aluminum tape.
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| 关 键 词： | 高性能混凝土 收缩 粒状高炉渣 飞尘 封接条件 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-12-12 |
Shrinkage behavior of high performance concrete at different elevated temperatures under different sealing conditions |
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| PAN Zhihua NAKAMURA Hidemi WEE Tionghuan.Shrinkage Behavior of High Performance Concrete at Different Elevated Temperatures under Different Sealing Conditions[J].Journal of Wuhan University of Technology. Materials Science Edition,2006,21(3):138-141. |
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| Authors: | Pan Zhihua Ph D Nakamura Hidemi Wee Tionghuan |
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| Affiliation: | (1) College of Materials Science & Engineering, Nanjing University of Technology, 210009 Nanjing, China;(2) Research and Development Center, Taiheiyo Cement Corporation, 285-8655 Chiba, Japan;(3) Department of Civil Engineering, National University of Singapore, Singapore |
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| Abstract: | The shrinkage behavior of high performance cement concrete made from Portland cement, ultra fine granulated blast furnace
slag and pulverized fly ash with addition of superplasticizer at different temperatures from ambient temperature to 120°C
under different sealing conditions was investigated by means of length change measurement on cylindrical concrete specimens
along with curing age. Results show that drying shrinkage deformations of titled concrete specimens increased rapidly as the
curing temperature rose. The development of drying shrinkage deformation can be efficiently controlled with the aid of aluminum
tape sealing as compared with the unsealed specimens, especially when the curing temperature is below 60°C, although it will
increase dramatically when the curing temperature is elevated to above 90°C. Polymer coating on concrete specimens showed
a similar effect on the control of drying shrinkage as the sealing operation with aluminum tape. |
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| Keywords: | high performance concrete shrinkage granulated blast-furnace slag fly ash elevated temperature sealing condition |
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