Temperature Response in Hardened Concrete Subjected to Tropical Rainforest Environment
The objective of this paper is to characterize concrete micro-environment temperature response to the natural climate of the tropical rainforest. The peculiar warmth, high humidity, and low pressure nature of the tropical rainforest necessitated the present study. Temperature probes were inserted into concrete specimens subjected to the sheltered and unsheltered environment to measure the micro-environment temperature of the concrete, and study the hysteresis characteristics in relation to the climate temperature. Some mathematical relationships for forecasting the internal temperature of concrete in the tropical rainforest environment were proposed and tested. The proposed relationships were found reliable. It was observed that the micro-environment temperature was lower at the crest, and higher at the trough than the climate environment temperature with a temperature difference of 1-3 oC. Also, temperature response in concrete for the unsheltered micro-environment was 1.85 times faster than the response in the sheltered micro-environment. The findings of the study may be used to assist the durability assessment of concrete.
Keywords:natural climate temperature, Concrete micro-environment temperature, Concrete deterioration, Tropical rainforest climate
J. Ortiz, A. Aguado, L. Agullo, T. Garcia, “Influence of environmental temperatures on the concrete compressive strength: simulation of hot and cold weather conditions”, Cement and Concrete Research, Vol. 35, pp. 1970-1979, 2005 DOI: https://doi.org/10.1016/j.cemconres.2005.01.004
A. Alhozaimy, R. R. Hussain, R. Al-Zaid, A. Al-Negheimish, “Coupled effect of ambient high relative humidity and varying temperature marine environment on corrosion of reinforced concrete”, Construction and Building Materials, Vol. 28, pp. 670-679, 2012
M. N. Haque, H. Al-Khaiat, B. John, “Climate zone – a prelude to designing durable concrete structures in the Arabian Gulf”, Building and Environment, Vol. 42, pp. 297-321, 2007 DOI: https://doi.org/10.1016/j.buildenv.2006.04.006
O. B. Hwan, J. S. Yup, “Effect of material and environmental parameters on chloride penetration profile in concrete structures”, Cement and Concrete Research, Vol. 37, pp. 47-53, 2007 DOI: https://doi.org/10.1016/j.cemconres.2006.09.005
R. Lyons, M. Ing, A. Simon, “Influence of diurnal and seasonal temperature variations on the detection of corrosion in reinforced concrete by acoustic emission”, Corrosion Science, Vol. 47 pp. 413-433, 2005 DOI: https://doi.org/10.1016/j.corsci.2004.06.010
T. S. Nguyen, S. Lorente, Carcasses, “Effect of the environment temperature on the chloride diffusion through CEM-1 and CEM-V mortars: An experimental study”, Construction and Building Materials, Vol. 23, pp. 795-803, 2009 DOI: https://doi.org/10.1016/j.conbuildmat.2008.03.004
Y. Xia, H. Hao, G. Zanardo, A. Deeks, “Long term vibration monitoring of an RC slab: temperature and humidity effect”, Engineering Structures, Vol. 28, pp. 441-452, 2006 DOI: https://doi.org/10.1016/j.engstruct.2005.09.001
P. Liu, Z. Yu, F. Guo, Y. Chen, P. Sun, “Temperature response in concrete under natural environment”, Construction and Building Materials, Vol. 98, pp. 713-721, 2015 DOI: https://doi.org/10.1016/j.conbuildmat.2015.07.070
Y. Yuan, J. Jiang, “Climate load model – climate action spectrum for predicting durability of concrete structure”, Construction and Building Materials, Vol. 29, pp. 291-298, 2012 DOI: https://doi.org/10.1016/j.conbuildmat.2011.10.034
A. Dousti, R. Rashetnia, B. Ahmadi, M. Shekarchi, “Influence of exposure temperature on chloride diffusion in concretes incorporating silica fume or natural zeolite”, Construct Building Materials, Vol. 49, 393-399, 2013 DOI: https://doi.org/10.1016/j.conbuildmat.2013.08.086
A. Alhozaimy, R. R. Hussain, R. Al-Zaid, A. Al-Negheimish, “Coupled effect of ambient high relative humidity and varying temperature marine environment on corrosion of reinforced concrete”, Construct Building Materials, Vol. 28, pp. 670-679, 2012 DOI: https://doi.org/10.1016/j.conbuildmat.2011.10.008
V. Zivica, L. Krajci, L. Bagel, M. Vargova, “Significance of the ambient temperature and the steel material in the process of concrete reinforcement corrosion”, Construct Building Materials, Vol. 11, No. 2, pp. 99-103, 1997 DOI: https://doi.org/10.1016/S0950-0618(97)00001-9
Y. Yuan, J. Jiang, “Prediction of temperature response in concrete in a natural climate environment”, Construction and Building Materials, Vol. 25, pp. 3159-3167, 2011 DOI: https://doi.org/10.1016/j.conbuildmat.2010.10.008
C. Y. Chang, S. S. Hung, “Implementing RFIC and sensor technology to measure temperature and humidity inside concrete structures”, Construction and Building Materials, Vol. 26, pp. 628-637, 2012 DOI: https://doi.org/10.1016/j.conbuildmat.2011.06.066
J. Jiang, Y. Yuan, “Prediction model for the time-varying corrosion rate of rebar based on micro-environment in concrete”, Construction and Building Materials, Vol. 35, pp. 625-632, 2012 DOI: https://doi.org/10.1016/j.conbuildmat.2012.04.077
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