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<br />High Rock Road Waste and Recycling Center Improvements 32 12 16 - 5 <br />Orange County, North Carolina JULY 2021 <br />DAA PN: R00592-213N <br /> <br />3.6 JOINTS <br />A. Construct joints to ensure continuous bond between adjoining paving sections. <br />Construct joints free of depressions with same texture and smoothness as other <br />sections of hot-mix asphalt course. <br />1. Clean contact surfaces and apply tack coat. <br />2. Offset longitudinal joints in successive courses a minimum of 6 inches. <br />3. Offset transverse joints in successive courses a minimum of 24 inches. <br />4. Construct transverse joints by bulkhead method or sawed vertical face method as <br />described in AI's "The Asphalt Handbook." <br />5. Compact joints as soon as hot-mix asphalt will bear roller weight without excessive <br />displacement. <br />6. Compact asphalt at joints to a density within 2 percent of specified course density. <br />3.7 COMPACTION <br />A. General: Begin compaction as soon as placed hot-mix paving will bear roller weight <br />without excessive displacement. Compact hot-mix paving with hot, hand tampers or <br />vibratory-plate compactors in areas inaccessible to rollers. <br />1. Complete compaction before mix temperature cools to 185 deg F. <br /> <br />B. Breakdown Rolling: Accomplish breakdown or initial rolling immediately after rolling <br />joints and outside edge. Examine surface immediately after breakdown rolling for <br />indicated crown, grade, and smoothness. Repair surfaces by loosening displaced <br />material, filling with hot-mix asphalt, and rerolling to required elevations. <br />C. Intermediate Rolling: Begin intermediate rolling immediately after breakdown rolling, <br />while hot-mix asphalt is still hot enough to achieve specified density. Continue rolling <br />until hot-mix asphalt course has been uniformly compacted to density meeting DOT <br />requirements. <br />D. Finish Rolling: Finish roll paved surfaces to remove roller marks while hot -mix asphalt <br />is still warm. <br />E. Edge Shaping: While surface is being compacted and finished, trim edges of <br />pavement to proper alignment. Bevel edges while still hot, with back of rake or smooth <br />iron. Compact thoroughly using tamper or other satisfactory method. <br />F. Repairs: Remove paved areas that are defective or contaminated with foreign <br />materials. Remove paving course over area affected and replace with fresh, hot -mix <br />asphalt. Compact by rolling to specified density and surface smoothness. <br />G. Protection: After final rolling, do not permit vehicular traffic on pavement until it has <br />cooled and hardened. <br />H. Erect barricades to protect paving from traffic until mixture has cooled enough not to <br />become marked. <br />3.8 INSTALLATION TOLERANCES <br />A. Thickness: Compact each course to produce, as a minimum, the thickness indicated <br />within the following tolerances: <br />1. Base Course: Plus 1/2 inch, no minus. <br />2. Surface Course: Plus 1/4 inch, no minus. <br />DocuSign Envelope ID: BBF56E0A-3618-497E-AA70-92F097E8F598