United States Department of Transportation
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Edition:Final report.
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Abstract:This report examines the use of RESURF CR and RESURF II, which are manufactured by POLYMER
CONCRETE INC., for the repair of punchouts in continuously reinforced concrete pavement (CRCP).
These products were used to repair 43 punchouts on I-55 north of McComb in Pike and Lincoln Counties.
These polymer concrete products were used to cement the broken concrete pavement pieces together and
restore an acceptable riding surface. One punchout had the reinforcing steel cut before the application of
RESURF CR. The usual temporary method of repair is to use asphalt mix to fill the punchout. Traditional
permanent repairs involve removal of the failed concrete, re-establishment of the reinforcing steel, and
placement of new concrete.
RESURF CR is a variable viscosity, low shrink, pourable polyester compound designed for cracks up to 1/2
inches (12.7 mm). The viscosity can be tailored on the jobsite to the crack widths encountered. The compound
reaches a compressive strength of 2,000 psi (13.790 MPa) in two hours, so the completed patch can
be opened to traffic shortly after the repair is complete.
RESURF II is a general performance polymer concrete consisting of a styrene diluted modified polyester
resin with a select aggregate blend, which is used to restore a smooth riding surface to the patch area once
the RESURF CR has been applied. This product has been previously approved as a concrete patching material
in Mississippi.
RESURF CR/RESURF II did not prove to be a long-term (greater than one year) solution for punchout repairs
and required more effort and time than making a temporary repair by filling the punchout with asphalt.
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