Effect of Grooved Concrete on Curing Efficiency, MLR-83-4, 1983

(1983) Effect of Grooved Concrete on Curing Efficiency, MLR-83-4, 1983. Transportation, Department of

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Abstract

The textured concrete surface on all PCC primary paving projects (and when specified on secondary projects) is required to be grooved in a specified manner. The laboratory test for determining the efficiency index of concrete curing compounds is made on slabs that are not grooved. This short investigation was undertaken to determine any changes in the curing efficiency index when using various rates of application of curing compound on grooved concrete. Currently a 95 percent curing efficiency index is specified at an application rate of 15 square yards per gallon. Can this efficiency be achieved, and if so at what application rate, on grooved concrete? Grooving the concrete greatly increases the surface area and also causes the liquid curing compound to run off the high spots and collect in the grooves.

Item Type: Departmental Report
Keywords: Concrete, Concrete curing, Pavement grooving, Paving, Portland cement concrete, Curing efficiency index
Subjects: Transportation > Pavements
Transportation > Pavements > Concrete
Transportation
Transportation > Research
Transportation > Design and Construction
ID Code: 17139
Deposited By: Iowa DOT Library
Deposited On: 09 Jun 2014 12:27
Last Modified: 26 Jan 2015 12:38
URI: http://publications.iowa.gov/id/eprint/17139