miscellaneous applications determined by the Representative. Shoulders where density is critical will be accepted by pavement cores as specified in Section 413.3(j)4.a.
The Department will accept the density when the mixture does not move under the compaction equipment.
pattern for the following materials, conditions, or applications:
• Materials placed in small quantities not exceeding 500 tons in a continuous placement.
• Mixtures placed on unstable or non- uniform bases.
• Leveling courses or other courses that are greater than or equal to 1- inch in depth or greater than or equal to 110 pounds per square yard.
• Mixtures used for patching, road widening, driveway adjustments, parking lots, shoulders where density is not critical , and other miscellaneous applications determined by the Representative. Shoulders where density is critical will be accepted by pavement cores as specified in Section 4 13.3(j)4.a .
• Mixtures placed at less than the minimum compacted depths in Table G.
With the Representative and the Contractor’s certified a sphalt field technician present, determine density with an approved nuclear gauge according to PTM No. 402, or determine density with an approved electrical impedance gauge according to PTM No. 403. Nuclear gauges must be operated by a licensed nuclear gauge operator. In the presence of the Representative , establish the optimum -rolling pattern for each course according to PTM No. 402 or PTM No. 403 . Document optimum- rolling patterns using the a ppropriate Form TR -4276B or Form TR -4276C and provide the completed forms to the Representative. Compact the course according to the optimum -rolling pattern. During paving, the Representative may require the Contractor to verify the target density established by the optimum- rolling pattern. If the target density is not achieved, establish a new optimum -rolling pattern as directed. The Representative will suspend paving when the optimum -rolling pattern is not being followed. Use one of the following gauges or approved equal:
• Troxler Electronics, Model 3411B or Model 4640B
• Campbell Pacific Nuclear, Model MC -2
• Seaman Nuclear, Model MC -2
• TransTech Systems, Inc., PQITM, Model 300 or Model 301
• Troxler Electronic Laboratories, PaveTrackerTM Submit a copy of the certificate of nuclear gauge annual calibration according to ASTM D 2950 and documentation of training of the nuclear gauge operator. Recalibrate any nuclear gauge that is damaged or repaired.