Predicting the Drying of Concrete by an Anomalous Diffusion Model
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 3
Abstract
The drying process of concrete is a complex unsteady heat and mass transfer process that is greatly affected by the drying temperature. The influence of the drying process on the drying characteristics and strength of concrete must be investigated. Concrete specimens were dried under various temperatures, namely, 60°C, 85°C, 105°C, 120°C, and 150°C, to obtain the criterion for the dry state of the concrete specimens and optimum drying control condition. An anomalous diffusion model was developed to characterize the drying phenomena of the concrete specimens. Three main results were acquired. First, the proposed model can clearly interpret experimental drying data and predict the dry state of concrete specimens. Second, drying temperature greatly affects the drying rate and dry state of the concrete specimens. Third, conducting the drying test on concrete specimens at 105°C is recommended.
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Acknowledgments
The research is supported by the National Natural Science Foundation of China (Grant Nos. 11132003 and 51739006) and the Fundamental Research Funds for the Central Universities (Grant No. 2018B622X14) and the Postgraduate Research & Practice Innovation Program of Jiangsu Province of China (Project No. KYCX18_0591).
References
Annerel, E., and L. Taerwe. 2009. “Revealing the temperature history in concrete after fire exposure by microscopic analysis.” Cem. Concr. Res. 39 (12): 1239–1249. https://doi.org/10.1016/j.cemconres.2009.08.017.
Contrafatto, L., M. Cuomo, and S. Gazzo. 2016. “A concrete homogenisation technique at meso-scale level accounting for damaging behaviour of cement paste and aggregates.” Comput. Struct. 173: 1–18. https://doi.org/10.1016/j.compstruc.2016.05.009.
Dewanckele, J., T. De Kock, G. Fronteau, H. Derluyn, P. Vontobel, M. Dierick, L. Van Hoorebeke, P. Jacobs, and V. Cnudde. 2014. “Neutron radiography and X-ray computed tomography for quantifying weathering and water uptake processes inside porous limestone used as building material.” Mater. Charact. 88 (2): 86–99. https://doi.org/10.1016/j.matchar.2013.12.007.
Doymaz, I. 2004. “Effect of drying treatment on air drying of plums.” J. Food. Eng. 64 (4): 465–470. https://doi.org/10.1016/j.jfoodeng.2003.11.013.
Galle, C. 2001. “Effect of drying on cement-based materials pore structure as identified by mercury intrusion porosimetry: A comparative study between oven-, vacuum-, and freeze-drying.” Cem. Concr. Res. 31 (10): 1467–1477.
Grabowski, E., B. Czarnecki, J. E. Gillott, C. R. Duggan, and J. F. Scott. 1992. “Rapid test of concrete expansivity due to internal sulfate attack.” ACI. Mater. J. 89 (5): 469–480.
Hallaji, M., A. Seppanen, and M. Pour-Ghaz. 2015. “Electrical resistance tomography to monitor unsaturated moisture flow in cementitious materials.” Cem. Concr. Res. 69: 10–18. https://doi.org/10.1016/j.cemconres.2014.11.007.
Henderson, S. M. 1961. “Grain drying theory. I: Temperature effect on drying coefficient.” Res. Agr. Eng. 6: 169–174.
Lewis, W. K. 1921. “The rate of drying of solid materials.” J. Ind. Eng. Chem. 13 (5): 427–432. https://doi.org/10.1021/ie50137a021.
Li, C. Q., and K. F. Li. 2010. “Moisture transport in concrete cover under drying-wetting cycles: Theory, experiment and modeling.” [In Chinese.] J. Chin. Ceram. Soc. 38 (7): 1151–1159.
Li, Q. H., S. L. Xu, and Q. Zeng. 2016. “A fractional kinetic model for drying of cement-based porous materials.” Dry. Technol. 34 (10): 1231–1242. https://doi.org/10.1080/07373937.2015.1103255.
Li, X. X., S. H. Chen, Q. Xu, and Y. Xu. 2017. “Modeling the three-dimensional unsaturated water transport in concrete at the mesoscale.” Comput. Struct. 190: 61–74. https://doi.org/10.1016/j.compstruc.2017.05.005.
Litavcova, E., A. Korjenic, S. Korjenic, M. Pavlus, I. Sarhadov, J. Seman, and T. Bednar. 2014. “Diffusion of moisture into building materials: A model for moisture transport.” Energy Build. 68: 558–561. https://doi.org/10.1016/j.enbuild.2013.09.018.
Liu, B. D., W. J. Lv, L. Li, and P. F. Li. 2014. “Effect of moisture content on static compressive elasticity modulus of concrete.” Constr. Build. Mater. 69 (11): 133–142. https://doi.org/10.1016/j.conbuildmat.2014.06.094.
Manel, B. A., S. Jalila, M. Daoued, and B. Ahmed. 2014. “Multiphase thermo-hydro-mechanical model for concrete under drying at high temperatures.” Dry. Technol. 33 (2): 143–152. https://doi.org/10.1080/07373937.2014.937871.
McCarter, W. J., G. Alaswad, and B. Suryanto. 2018. “Transient moisture profiles in cover-zone concrete during water absorption.” Cem. Concr. Res. 108: 167–171. https://doi.org/10.1016/j.cemconres.2018.04.001.
Metha, P. K., and P. J. M. Monteiro. 2006. Concrete microstructure, properties and materials. 3rd ed. New York: McGraw-Hill.
MWR (Ministry of Water Resources). 2006. Test code for hydraulic concrete. SL 352-2006. Beijing: MWR.
NEA (National Energy Administration). 2015. The code for mix design of hydraulic concrete. DL/T 5330-2015. Beijing: China Electric Power Press.
Nijland, T. G., and J. A. Larbi. 2001. “Unraveling the temperature distribution in fire-damaged concrete by means of PFM microscopy: Outline of the approach and review of potentially useful reactions.” Heron 46 (4): 253–264.
Nilenius, F., F. Larsson, K. Lundgren, and K. Runesson. 2013. “Macroscopic diffusivity in concrete determined by computational homogenization.” Int. J. Numer. Anal. Met. 37 (11): 1535–1551. https://doi.org/10.1002/nag.2097.
Page, G. E. 1949. “Factors influencing the maximum rates of air drying shelled corn in thin layers.” M.Sc. thesis, Mechanical Engineering, Purdue Univ.
Ross, C. A., D. M. Jerome, J. W. Tedesco, and M. L. Hughes. 1996. “Moisture and strain rate effects on concrete strength.” ACI Mater. J. 93 (3): 293–300.
SAC (Standardization Administration of China). 2007. Common portland cement. GB 175–2007. Beijing: Standards Press of China.
Shen, L., Q. W. Ren, L. F. Zhang, Y. Han, and G. Cusatis. 2017. “Experimental and numerical study of effective thermal conductivity of cracked concrete.” Constr. Build. Mater. 153: 55–68. https://doi.org/10.1016/j.conbuildmat.2017.07.038.
Simpson, R., A. Jaques, H. Nuñez, C. Ramirez, and A. Ramirez. 2013. “Fractional calculus as a mathematical tool to improve the modeling of mass transfer phenomena in food processing.” Food. Eng. Rev. 5 (1): 45–55. https://doi.org/10.1007/s12393-012-9059-7.
Simpson, R., C. Ramírez, V. Birchmeier, A. Almonacid, J. Moreno, H. Nuñez, and A. Jaques. 2015. “Diffusion mechanism during the osmotic dehydration of Granny Smith apples subjected to a moderate electric field.” J. Food. Eng. 166: 204–211. https://doi.org/10.1016/j.jfoodeng.2015.05.027.
Simpson, R., C. Ramírez, H. Nuñez, A. Jaques, and S. Almonacid. 2017. “Understanding the success of Page’s model and related empirical equations in fitting experimental data of diffusion phenomena in food matrices.” Trends. Food. Sci. Tech. 62: 194–201. https://doi.org/10.1016/j.tifs.2017.01.003.
Smyl, D., M. Hallaji, A. Seppanen, and M. Pour-Ghaz. 2016. “Three-dimensional electrical impedance tomography to monitor unsaturated moisture ingress in cement-based materials.” Transport Porous Med. 115 (1): 101–124. https://doi.org/10.1007/s11242-016-0756-1.
Wang, H. L., and Q. B. Li. 2007. “Experiments on saturated concrete under different splitting tensile rate and mechanism on strength change.” [In Chinese.] Eng. Mech. 24 (2): 105–109.
Zhang, G. H., Z. L. Li, K. Y. Nie, and M. H. Liu. 2016. “Experimental study on fracture toughness of concrete with different moisture contents.” [In Chinese.] J. Hydraul. Eng. 35 (2): 109–116.
Zhang, G. H., Z. L. Li, L. F. Zhang, Y. J. Shang, and H. Wang. 2017. “Experimental research on drying control condition with minimal effect on concrete strength.” Constr. Build. Mater. 135: 194–202. https://doi.org/10.1016/j.conbuildmat.2016.12.141.
Zhou, C. S. 2014. “General solution of hydraulic diffusivity from sorptivity test.” Cem. Concr. Res. 58: 152–160. https://doi.org/10.1016/j.cemconres.2014.01.019.
Zhou, J. K., X. D. Chen, L. Q. Wu, and X. W. Kan. 2011. “Influence of free water content on the compressive mechanical behaviour of cement mortar under high strain rate.” Sadhana 36 (3): 357–369. https://doi.org/10.1007/s12046-011-0024-6.
Zhou, J. K., and N. Ding. 2014. “Moisture effect on compressive behavior of concrete under dynamic loading.” J. Central South Univ. 21 (12): 4714–4722. https://doi.org/10.1007/s11771-014-2481-7.
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©2019 American Society of Civil Engineers.
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Received: Apr 6, 2018
Accepted: Aug 28, 2018
Published online: Jan 14, 2019
Published in print: Mar 1, 2019
Discussion open until: Jun 14, 2019
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