617Reconditioning Shoulders

617.01 Description. This work consists of preparing the shoulder, and furnishing and

compacting additional aggregate on the existing or prepared shoulder. Use removed or excavated materials in the Work when the material conforms to the specifications; if not, then recycle or dispose of the material according to 105.16 and 105.17.

617.02 Materials. Furnish materials conforming to 703.18.

617.03 Prosecution. If reconditioning shoulders as part of a resurfacing project and traffic is

maintained, place shoulder material along with the paving operations as rapidly as possible. Complete all shoulder reconditioning within four days following placement of the surface course and any course that results in a drop -off of 2.0 inches or greater. Adjacent to a safety edge constructed as part of the Work, complete all shoulder reconditioning within ten days following construction of the safety edge.

617.04 Shoulder Preparation. If shoulder preparation is specified, loosen the existing surface

to a depth of 1 to 2 inches. If the surface is an asphalt mix or seal, cut the surface along the edge of the pavement with a blade or disc to give a straight vertical edge. Do not cut a safety edge installed as part of the Work. Reduce pieces of loosened material that exceed approximately 1 1/2 inches in size to at least this maximum size or consider these pieces unsuitable material. Remove and dispose of oversized or other unsuitable materi al that would interfere with placing of aggregate. Reshape the loosened material as necessary to conform to the requirements for placing aggregate.

617.05 Furnishing and Compacting Additional Aggregate . Spread aggregate with approved

spreaders. Do not dump or store aggregate on the pavement. Remove spilled aggregate from the pavement as spreading progresses. Where the shoulder is relatively level, compact the material using crawler -type tractors, tamping rollers, trench rollers, suitable pneumatic tire rollers, or other suitable equipment. Use a minimum of four passes with compaction equipment weighing at leas t 6 tons. Perform the final compaction of the surface of the shoulder using a pneumatic tire roller. Where it would be unsafe to use the above compaction equipment due to the grade or width of the shoulder, use a side -mounted roller or side - mounted vibrati ng plate compactor that is securely attached to a tractor or other construction equipment. The side -mounted roller or side -mounted vibrating plate compactor must be able to adequately compact the aggregate while the equipment to which it is mounted remains on the paved surface. Use a minimum of four passes with the side -mounted roller and two passes with the side - mounted vibrating plate compactor. Compact the aggregate immediately after the spreading operation to prevent the loss of contained moisture and displacement of the material. Apply water as directed by the Engineer when required to aid compaction and to prevent segregation of the material.

617.06 Method of Measurement. The Department will measure Shoulder Preparation by the

number of square yards. The Department will measure Compacted Aggregate , by the number of cubic yards in place computed from the profile grade and typical sections. The Department will measure Water by the number of M gallons or 1000 gallon units according to 616.03. If the plans provide for the use of aggregate in a variable width or depth course and the Department cannot readily calculate the quantity from profile grade and typical sections, the Department will measure the cubic yards by converting from weight using the following conversion factors: TABLE 617.06-1 Material Conversion Factor Crushed stone 3800 lb/yd3 Crushed gravel 3900 lb/yd3 Crushed slag [1] less than 90 lb/ft3 3600 lb/yd3 90 to 100 lb/ft3 4000 lb/yd3 more than 100 lb/ft3 4500 lb/yd3 Recycled Portland Cement Concrete 3400 lb/yd3 Reclaimed Asphalt Pavement 4000 lb/yd3 [1] Based on average dry rodded weight of standard sizes of slag aggregates on record at the Laboratory. The conversion factors listed are the long gradation weights. These numbers are based on the dry rodded weights of No. 67, 57, or 8 gradation. The Department will determine slag weights based on weights obtained from the original source. The Department will classify salvaged or mixed materials according to the material that makes up the majority of the mixture. The moistures of the delivered material will be less than 2 percent above saturated surface dry condition or the payment will be based on the dry densities and dry weights. Furnish freight bills or certified weigh bills according to Item 109.

617.07 Basis of Payment. The Department will pay for accepted quantities at the contract prices

as follows: Item Unit Description 617 Square Yard Shoulder Preparation 617 Cubic Yard Compacted Aggregate 617 M Gallons Water