513JOINT REHABILITATION

513.1DESCRIPTION—This work is construction of a sealant reservoir and sealing transverse contraction,

construction, or expansion joints in existing Portland cement concrete pavements of the type indicated. Joint Rehabilitation is classified into two types as follows:

513.2MATERIAL—

513.3CONSTRUCTION—As shown on the Standard Drawings, and as follows:

unrepaired spalls 2 inches or less in dimension. Construct the joint sealant reservoir by sawing to the width and depth indicated for the appropriate existing joint spacing. In general, center the sealant reservoir around the existing joint opening. Immediately after sawing, flush the joint with water. Place tape bond breaker on bottom of joint reservoir immediately before sealing. Do not allow tape to extend up reservoir face more than 1/8 inch.

reservoir, thoroughly clean the joint to the depth required for the sealant reservoir. If water blasting, use a water blaster with a minimum operating capacity of 10 gallons per minute at 7,000 pounds per square inch. Place joint backing material to the depth required for the sealant reservoir, if necessary.

and clean, with a compressed air stream measuring 100 pounds per square inch at the source, free of oil, moisture, and other contaminants. Seal as specified in the applicable parts of Section 501.3(n).

existing steel plate that lies within the new sealant reservoir before sealing the joint. A maximum of 1/4 inch of the plate may protrude into the reservoir.

513.4MEASUREMENT AND PAYMENT—Linear Foot

The unit price includes cleaning and sealing of small unrepaired spalls. Repair any damage to the existing shoulders because of this work at no additional expense to the Department.