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Computers and Concrete Volume 8, Number 4, August 2011 , pages 425-443 DOI: https://doi.org/10.12989/cac.2011.8.4.425 |
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Thermal stress and pore pressure development in microwave heated concrete |
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A. Akbarnezhad and K.C.G. Ong
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| Abstract | ||
| Most previous studies have generally overlooked the contribution of thermal stresses generated within the concrete mass when subjected to microwave heating and reported on pore-pressure as being the dominant cause of surface spalling. Also, the variation in electromagnetic properties of concrete and its effects on the microwave heating process have not been studied in detail. In this paper, finite element modeling is used to examine the simultaneous development of compressive thermal stresses and porepressure arising from the microwave heating of concrete. A modified Lambert | ||
| Key Words | ||
| concrete; microwaves; contamination; heating; thermal stress; pore pressure. | ||
| Address | ||
| A. Akbarnezhad and K.C.G. Ong: Department of Civil Engineering, National University of Singapore, # 04-03E, Block E2, 5 Engineering drive 2, Singapore 117576 | ||