United States Department of Transportation
i
Laboratory and field evaluation of concrete paving curing effectiveness.
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2009-12-01
[PDF-6.03 MB]
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Edition:Technical report; Sept. 2003-Aug. 2006.
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Abstract:Ensuring that sufficient water is available in hydrating concrete is of great importance to produce durable
concrete and achieve both short- and long-term performance of concrete pavement. Excessive early-age
evaporation from the surface of concrete pavement often results in high porosity delaminated and low
strength concrete. Application of curing compounds in concrete paving is widely used to minimize
evaporation. However, the Texas Department of Transportation (TxDOT) standard specifications for
pavement construction (Item 526) only defines the use of the membrane curing in terms of key
characteristics such as percent solids, density, viscosity, color, and the application rate, but does not specify
curing performance or limits on the rate of evaporation.
This research utilized several techniques to evaluate curing effectiveness from both a moisture retention and
physical properties standpoint, to develop a laboratory-based curing evaluation protocol that has application
to the field.
A series of tests were carried out to identify factors controlling curing quality under field conditions.
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