Volume 2 Issue 4
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Yan HAI, Yue-ming ZHU. 2009: Mesocosmic study on autogenous shrinkage of concrete with consideration of effects of temperature and humidity. Water Science and Engineering, 2(4): 85-94. doi: 10.3882/j.issn.1674-2370.2009.04.008
Citation: Yan HAI, Yue-ming ZHU. 2009: Mesocosmic study on autogenous shrinkage of concrete with consideration of effects of temperature and humidity. Water Science and Engineering, 2(4): 85-94. doi: 10.3882/j.issn.1674-2370.2009.04.008
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Mesocosmic study on autogenous shrinkage of concrete with consideration of effects of temperature and humidity

doi: 10.3882/j.issn.1674-2370.2009.04.008

  • College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. China

Funds:  This work was supported by the Key Program of the National Natural Science Foundation of China (Grant No. 50539010) and the National Natural Science Foundation of China (Grant No. 50779010).
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  • Corresponding author: Yan HAI
  • Received Date: 2010-01-13
  • Rev Recd Date: 2010-01-12
    Abstract
  • A study on the autogenous shrinkage (AS) of concrete from a mesocosmic perspective was carried out using numerical simulation technology. The temperature history and the autogenous relative humidity (ARH), two factors that have been shown to have occasional influence on this process in previous studies, were introduced into this study. According to these concepts, a program for simulation of the temperature field, humidity field, and stress field based on the equivalent age method and a fully automatic aggregate modeling tool were used. With the help of these programs, the study of a small concrete specimen provided some useful conclusions: the aggregate and the matrix show distinct distribution properties in the temperature field, humidity field, and stress field; the aggregate-matrix interface has a high possibility of becoming the location of the initial cracking caused by AS of concrete; the distribution of random aggregates is extremely important for mesoscopical analysis; and the temperature history is the main factor affecting the AS of concrete. On the whole, inherent mechanisms and cracking mechanisms of AS of concrete can be explained more reasonably and realistically only by considering the different characteristics of material phases and the effects of temperature and humidity.

     

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    • References(17)
  • Copeland, L. E., Kantro, D. L., and Verbeck, G. J. 1960. Chemistry of hydration of Portland cement. Proceedings of the 4th International Symposium on the Chemistry of Cement, 429-465. Washington, D. C.: National Bureau of Standards.
    Davis, H. E. 1940. Autogenous volume change of concrete. Proceedings of the 43rd Annual American Society for Testing Materials, 1103-1113. Atlantic City: American Society for Testing and Materials.
    Freiesleben Hansen, P., and Pedersen, E. J. 1977. Maturity computer for controlled curing and hardening of concrete. Nordisk Betong, 1(19), 21-25.
    Gao, Z. G., and Liu, G. T. 2003. Two-dimensional random aggregate structure for concrete. Journal of Tsinghua University (Science and Technology), 43(5), 710-714. (in Chinese)
    Hua, C., Ehrlacher, A., and Acker, P. 1997. Analyses and models of the autogenous shrinkage of hardening cement pasteⅡ: Modelling at scale of hydrating grains. Cement and Concrete Research, 27(2), 245-258. [doi: 10.1016/S0008-8846(96)00202-5]
    Jiang, Z. W., Sun, Z. P., and Wang, P. M. 2003. Study on autogenous relative humidity change and autogenous shrinkage of cement pastes. Journal of Building Materials, 6(4), 345-349. (in Chinese)
    Leite, J. P. B., Slowik, V., and Mihashi, H. 2004. Computer simulation of fracture processes of concrete using mesolevel models of lattice structures. Cement and Concrete Research, 34(6), 1025-1033. [doi:10.1016/ j.cemconres.2003.11.011]
    Lyman, C. G. 1934. Growth and Movement in Portland Cement Concrete. London: Oxford University Press.
    Mak, S. L., and Torii, K. 1995. Strength development of high strength concretes with and without silica fume under the influence of high hydration temperatures. Cement and Concrete Research, 25(8), 1791-1802. [doi: 10.1016/0008-8846(95)00175-1]
    Seungwook, L. 2002. Viscoelastic Age-Dependent Analysis of Restrained Shrinkage Stress Development in Early-Age Concrete. Ph. D. Dissertation. Houston: Texas A&M University.
    Tazawa, E., and Miyazawa, S. 1995a. Experimental study on mechanism of autogenous shrinkage of concrete. Cement and Concrete Research, 25(8), 1633-1638. [doi: 10.1016/0008-8846(95)00159-X]
    Tazawa, E., and Miyazawa, S. 1995b. Influence of cement and admixture on autogenous shrinkage of cement paste. Cement and Concrete Research, 25(2), 281-287. [doi: 10.1016/0008-8846(95)00010-0]
    Wu, F. 2005. Research on Concrete Temperature Cracking Emulate System. Ph. D. Dissertation. Nanjing: Hohai University. (in Chinese)
    Xu, H. S., and Jiang, Z. W. 2004. Study on autogenous relative humidity change and autogenous shrinkage of high-performance concrete. Journal of Chongqing Jianzhu University, 26(2), 121-125. (in Chinese)
    Zhu, B. F. 1999. Thermal Stresses and Temperature Control of Mass Concrete. Beijing: China Electric Power Press. (in Chinese)
    Zhutovsky, S. 2003. Modeling of autogenous shrinkage. International RILEM Conference on Early Age Cracking in Cementitious Systems, 169-178. Sendai: RILEM Publications SARL.
    Zhu, Y. M., Liu, Y. Z., Cao, W. M., and Wu, J. 2006. Analysis of concrete moisture dry shrinkage and stress based on mesoscopical model. Journal of Hydraulic Engineering, 37(10), 1163-1168. (in Chinese)
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