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Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete

Received: 4 November 2016     Published: 5 November 2016
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Abstract

The heat generated during the curing period of concrete may results in early thermal cracking. To avoid or at least alleviate this early thermal cracking problem, replacing part of cement by cementitious materials should be an effective method. Herein, it is proposed to add PFA or CSF as cement replacement to lower the cement content and heat generated from the hydration of cement. To study the effectiveness of adding PFA or CSF in reducing the heat generation of curing concrete, a series of concrete mixes with water/cement ratios ranging from 0.24 to 0.40 and different amounts of PFA or CSF added were tested for their heat generation. The results illustrated that the addition of PFA or CSF as cement replacement could effectively reduce the adiabatic temperature rise and heat generation of curing concrete, while the addition of CSF is much more effectively than addition of PFA in reducing heat generation at the same strength.

Published in International Journal of Materials Science and Applications (Volume 5, Issue 6)
DOI 10.11648/j.ijmsa.20160506.16
Page(s) 271-276
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Condensed Silica Fume, Temperature Rise, Pulverized Fuel Ash

References
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[16] W. P. Ma, D. Sample, R. Martin, and P. W. Brown, “Calorimetric Study of Cement Blends Containing Fly Ash, Silica Fume, and Slag at Elevated Temperatures,” Cement, Concrete and Aggregate, vol. 16, No. 2, 1994, pp. 93-99.
[17] M. I. Sanchez de Rojas, and M. Frias, “The Influence of Silica Fume on the Heat of Hydration of Portland Cement,” ACI Special Publication SP-153, American Concrete Institute, USA, 1995, pp. 829-843.
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Cite This Article
  • APA Style

    J. J. Chen, H. N. Chen, L. G. Li. (2016). Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete. International Journal of Materials Science and Applications, 5(6), 271-276. https://doi.org/10.11648/j.ijmsa.20160506.16

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    ACS Style

    J. J. Chen; H. N. Chen; L. G. Li. Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete. Int. J. Mater. Sci. Appl. 2016, 5(6), 271-276. doi: 10.11648/j.ijmsa.20160506.16

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    AMA Style

    J. J. Chen, H. N. Chen, L. G. Li. Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete. Int J Mater Sci Appl. 2016;5(6):271-276. doi: 10.11648/j.ijmsa.20160506.16

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  • @article{10.11648/j.ijmsa.20160506.16,
      author = {J. J. Chen and H. N. Chen and L. G. Li},
      title = {Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete},
      journal = {International Journal of Materials Science and Applications},
      volume = {5},
      number = {6},
      pages = {271-276},
      doi = {10.11648/j.ijmsa.20160506.16},
      url = {https://doi.org/10.11648/j.ijmsa.20160506.16},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160506.16},
      abstract = {The heat generated during the curing period of concrete may results in early thermal cracking. To avoid or at least alleviate this early thermal cracking problem, replacing part of cement by cementitious materials should be an effective method. Herein, it is proposed to add PFA or CSF as cement replacement to lower the cement content and heat generated from the hydration of cement. To study the effectiveness of adding PFA or CSF in reducing the heat generation of curing concrete, a series of concrete mixes with water/cement ratios ranging from 0.24 to 0.40 and different amounts of PFA or CSF added were tested for their heat generation. The results illustrated that the addition of PFA or CSF as cement replacement could effectively reduce the adiabatic temperature rise and heat generation of curing concrete, while the addition of CSF is much more effectively than addition of PFA in reducing heat generation at the same strength.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete
    AU  - J. J. Chen
    AU  - H. N. Chen
    AU  - L. G. Li
    Y1  - 2016/11/05
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmsa.20160506.16
    DO  - 10.11648/j.ijmsa.20160506.16
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 271
    EP  - 276
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20160506.16
    AB  - The heat generated during the curing period of concrete may results in early thermal cracking. To avoid or at least alleviate this early thermal cracking problem, replacing part of cement by cementitious materials should be an effective method. Herein, it is proposed to add PFA or CSF as cement replacement to lower the cement content and heat generated from the hydration of cement. To study the effectiveness of adding PFA or CSF in reducing the heat generation of curing concrete, a series of concrete mixes with water/cement ratios ranging from 0.24 to 0.40 and different amounts of PFA or CSF added were tested for their heat generation. The results illustrated that the addition of PFA or CSF as cement replacement could effectively reduce the adiabatic temperature rise and heat generation of curing concrete, while the addition of CSF is much more effectively than addition of PFA in reducing heat generation at the same strength.
    VL  - 5
    IS  - 6
    ER  - 

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Author Information
  • Department of Civil Engineering, Foshan University, Foshan, China

  • Space Structures Research Center, Guizhou University, Guiyang, China

  • School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China

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