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and as herein specified. Moisten subgrade as required to provide a uniform dampened condition at the time concrete is placed. Do not place concrete around manholes or other structures until they have been brought to the required grade and alignment. Concrete shall be deposited and consolidated in such a manner as to prevent the formation of voids or honeycomb pockets, however, do not overconsolidate concrete so as to cause segregation of aggregate in concrete. Consolidate with care to prevent dislocation of joint devices. Deposit and spread concrete in a continuous operation. 3.05 JOINT CONSTRUCTION A. Construct expansion (isolation), construction (weakened-plane) and construction joints true to line with face perpendicular to surface of the pavement as shown on approved Paving Construction Plan. Joints shall be provided in both the longitudinal and transverse contraction joints shall be fifteen (15) feet. On radius sections, maximum joint spacing shall be twelve (12) feet as measured along the longest edge of the curve. 1. Contraction (Weakened-plant) joints: Provide contraction joints for a depth not greater than one-fourth (1/4) nor less than one-fifth (1/5) the pavement thickness. Contraction joints must be continuous across the slab unless interrupted by a full depth joint filler and must extend completely through any integral curbs. Contraction joint alignment may be skewed or warped where necessary to reach points of stress concentration. Contraction joints are to be constructed at the Paving Subcontractor's option as follows: a. Sawed Joints: Form contraction joints using saws equipped with shatterproof abrasive or diamond rimmed blades. Cut joints into concrete paving as soon as the surface will not be raveled or otherwise damaged by the cutting action. Joints must be completed between four (4) and eighteen (18) hours after paving has been placed. b. Premolded Inserts: Use embedded strips of premolded filler joint material embedded while concrete is still in the plastic state. Premolded filler must be flush with the surface of the concrete paving. c. Hand-formed: Contraction joints may be installed in the concrete paving with the use of a mason's hand groover utilized while the concrete is in the plastic state. Hand groover must be of sufficient depth to leave a finished joint greater than "015 and less the "0"/4. Hand-formed joints must have a radius along the joint edge equal to Y. inch. 2. Construction Joints: Place full depth construction Joints at the end of concrete pours and at locations where placement operations are stopped for a period of thirty (30) minutes or more except where such pours terminate at expansion joints. 3. Expansion (Isolation) Joints: Provide Expansion Joints to isolate fixed objects abutting or within the paved area. They must contain premolded joint filler for the full depth of the paving slab. 3.06 FINISHING 08/12 02512-3 11-4179