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Prevention of crack formation in massive concrete at an early age by cooling pipe system

Prevention of crack formation in massive concrete at an early age by cooling pipe system Abstract Cooling pipe system (CPS) in concrete arrays plays an important role to control the temperature changes in massive concrete such as dams, foundation bridges, etc. The application of CPS in massive concrete has also been studied by some researchers but only in positive qualities point of view of the CPS. The present study presents the results of an investigation of thermal behavior regarding crack formation due to the hydration heat in massive concrete structures. To reduce the thermal load and improve the reliability of protection against cracks in massive concrete, the temperature changes, particularly the temperature field and thermal stress, in such concrete with the presence of CPS were simulated and calculated with the help of the advanced computer programs. In addition, both the temperature field and the cracking index in the massive concrete with the CPS’s temperature of 15 °C were determined. As the results, the cracking index over time was greater than the allowable value of 1.5, which indicates that the risk of cracking did not occur when the CPS was applied in the massive concrete. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Asian Journal of Civil Engineering" Springer Journals

Prevention of crack formation in massive concrete at an early age by cooling pipe system

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Publisher
Springer Journals
Copyright
2019 Springer Nature Switzerland AG
ISSN
1563-0854
eISSN
2522-011X
DOI
10.1007/s42107-019-00175-5
Publisher site
See Article on Publisher Site

Abstract

Abstract Cooling pipe system (CPS) in concrete arrays plays an important role to control the temperature changes in massive concrete such as dams, foundation bridges, etc. The application of CPS in massive concrete has also been studied by some researchers but only in positive qualities point of view of the CPS. The present study presents the results of an investigation of thermal behavior regarding crack formation due to the hydration heat in massive concrete structures. To reduce the thermal load and improve the reliability of protection against cracks in massive concrete, the temperature changes, particularly the temperature field and thermal stress, in such concrete with the presence of CPS were simulated and calculated with the help of the advanced computer programs. In addition, both the temperature field and the cracking index in the massive concrete with the CPS’s temperature of 15 °C were determined. As the results, the cracking index over time was greater than the allowable value of 1.5, which indicates that the risk of cracking did not occur when the CPS was applied in the massive concrete.

Journal

"Asian Journal of Civil Engineering" – Springer Journals

Published: Dec 1, 2019

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