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A model for temperature influence on concrete hydration exothermic rate (part one: Theory and experiment)

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Abstract

Recent achievements in concrete hydration exothermic models based on Arrhenius equation have improved computation accuracy for mass concrete temperature field. But the properties of the activation energy and the gas constant (E a /R) have not been well studied yet. From the latest experiments it is shown that E a /R obviously changes with the hydration degree without fixed form. In this paper, the relationship between hydration degree and E a /R is studied and a new hydration exothermic model is proposed. With those achievements, the mass concrete temperature field with arbitrary boundary condition can be calculated more precisely.

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Authors and Affiliations

  1. Hydrochina Huadong Engineering Corporation, Hangzhou, 310014, China

    Zhenyang Zhu  (朱振泱) & Weimin Chen

  2. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China

    Sheng Qiang

Authors
  1. Zhenyang Zhu  (朱振泱)
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  2. Sheng Qiang
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  3. Weimin Chen
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Corresponding author

Correspondence to Zhenyang Zhu  (朱振泱).

Additional information

Funded by the National Natural Science Foundation of China (Nos.51109071, 51209219) and Jiangsu Province Natural Science Foundation (No.BK2010517)

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Zhu, Z., Qiang, S. & Chen, W. A model for temperature influence on concrete hydration exothermic rate (part one: Theory and experiment). J. Wuhan Univ. Technol.-Mat. Sci. Edit. 29, 540–545 (2014). https://doi.org/10.1007/s11595-014-0954-z

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  • DOI: https://doi.org/10.1007/s11595-014-0954-z

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