Thermal Cracking
Thermal Cracking
(OP)
We have a special concrete mix design that we are using so that we can apply a coating to a concrete containment vessel earlier than 28 days. How do I determine if thermal cracking will be an issue?
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RE: Thermal Cracking
RE: Thermal Cracking
In addition to the special mix design, the ACTUAL curing conditions can have as much or more effect on the shrinkage/curing of the concrete vessel.
Maintain a proper moisture content in the concrete (especially important with a 2-sided shell) and limit the temperatures to reduce rapid curing and higher shrinkage. Uniformity of the moisture within the concrete is particularly important with thicker sections where the center can cure at a different rate than the exterior, which can disrupt the long term bond of a coating.
Many special efforts to limit shrinkage require a full, long term curing.
RE: Thermal Cracking