How can predict the maximum temperature and maximum difference in mass concrete


Now, I’m dealing with the problems with the temperature in mass concrete. How can we predict the max. temp. and max difference?

If the temp. is too high, what method we can use to reduce the heat generation in mass concrete?
One way is we use the cooling pipe system, but the effect of this is not high.


6 thoughts on “How can predict the maximum temperature and maximum difference in mass concrete

  1. wyfjta says:

    Dear @Eagle!

    Now, i'm dealing with a problem. This's about the design of cooling pipe in mass concrete. But the calculation of this is very difficult.
    I have read some papers about this problem, we can calculate the "heat transfer coeff." and use it as a input parameter for internal flow in Midas Program (In attached file).

    So, do You have any materials or paper discuss deeply about this? And we can calculate the effect of the cooling pipe system by hand (use numerical method, not by Midas program)?
    Thanks You so much and really sorry If i wasting your time.

  2. Eagle says:

    Hi @wyfjta
    I can't really share copyright protected materials here, however, I will send you what I have in a private message.

    Attached is another spreadsheet as per the CIRIA 660

  3. wyfjta says:

    Dear @Eagle
    Thank you for your soon reply. I just found that, in CIRIA C660 (Early-age thermal crack control in concrete) of P B Bamforth show the detail of predicting the temperature using the model based on adiabatic temperature data (the detail of this model is in Appendix A2). But I can't find it (Appendix A2) on the Internet.
    If you have, please share for me. I'm really need it.
    Thanks you so much.

  4. Eagle says:

    Dear @wyfjta, you can control the effect of mass concrete temperature by designing your reinforced concrete sections for early thermal cracks according to BS 8007:1987. Attached is a spreadsheet which calculates the effect of the early thermal cracks and against the provided reinforcement. At site, you can control the temperature variance between the concrete surface and the core of the section by additives, cold water in admixture in addition to other methods, etc. The most effective method is providing expansion joints if the spans are exceeding 40-50 m or pour strips in some cases.

    Have a look at these:
    The properties of concrete against adverse weather conditions
    //forum.strukts.com/discussion/450/the-properties-of-concrete-against-adverse-weather-conditions/p1

    Factors to be considered when designing a tall building
    //forum.strukts.com/discussion/511/factors-to-be-considered-when-designing-a-tall-building/p1

    Expansion joints
    //forum.strukts.com/discussion/378/expansion-joints/p1

    I hope I answered your question, if not, please let me know 🙂

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