Section 2557.  Portland Cement Concrete Pavement Grooving

2557.01 DESCRIPTION.

Use diamond grooving equipment to produce longitudinal grooves on existing PCC pavement surface.

2557.02 MATERIALS.

None

2557.03 CONSTRUCTION.

A.    Equipment.

Use equipment meeting Article 2532.03, A.

B.    Pavement Grooving.

1.     Use equipment with longitudinal grooving blades 0.95 inches ± 0.05 inches wide.

2.     Cut grooves meeting the following:

a.     1/8 inch ±1/16 inch wide,

b.     1/8 inch to 3/16 inch deep and,

c.     Uniformly spaced at 3/4 inch intervals, measured center to center of groove.

3.     Ensure grooves are parallel to centerline of the roadway.

4.     Do not groove within 3 inches of longitudinal joint or edge of pavement.

C.    Limitations

Observe limitations in Article 2532.03, D.

2557.04 METHOD OF MEASUREMENT.

Square yards of Longitudinal Grooving of Concrete, Pavement, shown in contract documents

2557.05 BASIS OF PAYMENT.

Contract unit price per square yard for Longitudinal Grooving of Concrete, Pavement.