2231Bituminous Surface Reconditioning

2231.1DESCRIPTION

This work consists of reconditioning the existing pavement surface before constructing a bituminous overlay or surfacing courses.

2231.2MATERIALS

A Bituminous Patching Mixture Provide bituminous patching Material matching the type of Material used in the first Layer of bituminous surfacing placed on the reconditioned surface. B Mixture for Joints and Cracks Provide a mixture for joints and cracks consisting of a prepared mix of fine Aggregate and bituminous Material in accordance with the following requirements of Table 2231.2- 1:

Table 2231.2-1 Joint and Cracks Mixture Requirements Material Requirement 1/2 inch Sieve 100* No. 8 Sieve 45 – 80* No. 200 Sieve 2.0 – 7.0* Aggregate spall < 5 percent Bituminous Materialǁ 6.5 – 7.0† * Percent passing requirement. ǁ Match PG grade to grade used on first Lift of plant mixed asphalt. † Percent by weight. C Joint and Crack Filler Provide Joint and crack filler in accordance with 3725, “Hot-Poured, Extra Low Modulus, Elastic Type Joint and Crack Sealer.”

2231.3CONSTRUCTION REQUIREMENTS

A Surface Repair Remove loose, unstable, or deteriorated portions of the existing pavement to provide a stable surface after completion of the patching operation. Remove waste or surplus Material from the Project. Repair and fill the holes and depressions with mix in accordance with 2231.2.A or 2231.2.B and 2231.5 Basis of Payment. Compact the mix using conventional roller equipment or mechanical tampers in areas inaccessible to conventional roller Equipment. B Joint Repair B.1 Concrete Pavement Clean and refill joints and cracks at least 1/4 inch wide. B.2 Bituminous Pavement Rout and seal cracks 1/4 inch to 3/4 inch wide. For cracks greater than 3/4 inch wide, fill with the Mixture for joints and cracks and tamp in place.

2231.4METHOD OF MEASUREMENT

The Engineer will separately measure the accepted quantities of B ituminous patching mixture, Mixture for joints and cracks, and Joint and crack filler, as provided and placed, by the weight or by the loose volume of Material as shown on the Plans.

2231.5BASIS OF PAYMENT

The Contract Unit Prices for Bituminous patching mixture, for Mixture for joints and cracks, and for Joints and crack filler include the cost of removing and disposing of the existing deteriorated Materials (pavement and steel), cleaning and drying the holes, furnishing, placing, and compacting material . When used for Joint and crack filler the Contract Unit Price for this item is compensation in full for all costs of routing, cleaning, and tack coating severely deteriorated transverse and longitudinal cracks prior to placing any overlays. The Work shall be done in accordance with the Plans and to the satisfaction of the Engineer.

If the Contract does not specify a specific Contract Pay Item for removing concrete base or pavement in accordance with 2104, “Removing Pavement and Miscellaneous Structures,” the Department will pay for the removal of a concrete base or pavement to full depth and width between existing joints, or by sawing, as Extra Work in accordance with 1402, “Contract Revisions.” The Department will pay for bituminous surface reconditioning on the basis of the following schedule: Item No. Item Unit

2231.508 Mixture for Joints and Cracks pound

8 Joint and Crack Filler pound

9 Bituminous Patching Mixture ton