3-8
307.06 Pulverizing The entire depth of existing pavement shall be pulverized together
with 1 inch or more of the unde rlying gravel into a homogenous mass. All pulverizing shall be done with equipment that will provide a homogenous mass of p ulverized material, processed in-place, which will pass a 2 inch square mesh sieve.
307.07 Weather Limitations Full depth recycled work shall be p erformed when;
a Recycling operations will be allowed between May 15th and September 15th inclusive in Zone 1 - Areas north of US Rout e 2 from Gilead to Bangor and no rth of Route 9 from Bangor to Calais. Recycling will be allowed between May 1st and September 30th inclusive in Zone 2 - Areas south of Zone 1 i ncluding the US Route 2 and Route 9 boundaries. b The atmospheric temperature, as determined by an approved the rmometer placed in the shade at the recycling location, is 50°F and rising. c When there is no standing water on the surface. d During generally dry conditions, or when weather conditions a re such that proper pulverizing, mixing, grading, finishing and curing can be obtai ned using proper procedures, and when compaction can be accomplished as determined by the Re sident. e When the surface is not frozen and when overnight temperature s are expected to be above 32°F. f Wind conditions are such that the spreading of lime or cement on the roadway ahead of the recycling machine will not adversely affect the operation.
307.08 Surface Tolerance The complete surface of the Full Dept h Recycled course shall
be shaped and maintained to a tolerance, above or below the req uired cross sectional shape, of ⅜ inch.
307.09 Full Depth Recycling Procedure New aggregate or recycle d material meeting the
requirements of Section 307.021 - New Aggregate and Additional Recycled Material, shall be added as necessary to restore cross-slope and/or grade befor e pulverizing. Locations will be shown on the plans or described in the construction notes. T he Resident may add other locations while construction of the project is in progress. The Contractor will use recycled material to the extent it is available, in lieu of new aggregat e. The material shall then be pulverized, processed, and blended into a homogeneous mass pass ing a 2 inch square mesh sieve. Material found not pulverized down to a 2 inch size will be required to be reprocessed by the recycler with successive passes until approved by the Re sident. Should the Contractor be require d to add new aggregate or recyc led material to restore cross-slope and/or grade after the initial pulverizing process, those areas will require re- processing to blend into a homogenous mass passing a 2 in squa re mesh sieve.