Common use of ASPHALT PAVEMENTS - SUPERPAVE Clause in Contracts

ASPHALT PAVEMENTS - SUPERPAVE. (6-19-12) (Rev. 1-19-16) 605, 609, 610, 650 SP6 R01 Revise the 2012 Standard Specifications as follows: Apply tack coat uniformly across the existing surface at target application rates shown in Table 605-1. New Asphalt 0.04 ± 0.01 Oxidized or Milled Asphalt 0.06 ± 0.01 Concrete 0.08 ± 0.01 Apply tack coat at a temperature within the ranges shown in Table 605-2. Tack coat shall not be overheated during storage, transport or at application. Warm mix asphalt (WMA) is allowed for use at the Contractor’s option in accordance with the NCDOT Approved Products List for WMA Technologies available at: The JMF mix temperature shall be within the ranges shown in Table 610-1 unless otherwise approved. When RAS is used, the JMF mix temperature shall be established at 275ºF or higher. replace the second sentence of the first paragraph with the following: Do not place asphalt material when the air or surface temperatures, measured at the location of the paving operation away from artificial heat, do not meet Table 610-5. Table 610-5 with the following: B25.0B, C 35F I19.0B, C, D 35F SF9.5A, S9.5B 40FA S9.5C, S12.5C 45FA S9.5D, S12.5D 50F Produce the mixture at the asphalt plant within ±25 ºF of the JMF mix temperature. The temperature of the mixture, when discharged from the mixer, shall not exceed 350ºF. Page 6-26, Article 610-8, SPREADING AND FINISHING, line 34, add the following new paragraph: As referenced in Section 9.6.3 of the HMA/QMS Manual, use the automatic screed controls on the paver to control the longitudinal profile. Where approved by the Engineer, the Contractor has the option to use either a fixed or mobile string line. the following after the first sentence in the first paragraph: Smoothness acceptance testing using the inertial profiler is not required on ramps, loops and turn lanes. The interval at which relative profile elevations are reported shall be 2”. Operate the profiler at any speed as per the manufacturer’s recommendations to collect valid data. After testing, transfer the profile data from the profiler portable computer’s hard drive to a write once storage media (Flash drive, USB, DVD-R or CD-R) or electronic media approved by the Engineer. Submit a report with the documentation and electronic data of the evaluation for each section to the Engineer within 10 days after completion of the smoothness testing. The report shall be in the tabular format for each 0.10 segment or a portion thereof with a summary of the MRI values and the localized roughness areas including corresponding project station numbers or acceptable reference points. Calculate the pay adjustments for all segments in accordance with the formulas in Sections (1) and (2) shown below. The Engineer shall review and approval all pay adjustments unless corrective action is required. The price adjustment will apply to each 0.10-mile section or prorated for a portion thereof, based on the Mean Roughness Index (MRI), the average IRI values from both wheel paths. Areas of localized roughness shall be identified through the “Smoothness Assurance Module (XXX)” provided in the ProVAL software. Use the XXX report to optimize repair strategies by analyzing the measurements from profiles collected using inertial profilers. The ride quality threshold for localized roughness shall be 165 in/mile for any sections that are 15 ft. to 100 ft. in length at the continuous short interval of 25 ft. Submit a continuous roughness report to identify each section with project station numbers or reference points outside the threshold and identify all localized roughness, with the signature of the Operator included with the submitted IRI trace and electronic files. If the Engineer does not require corrective action, the pay adjustment for each area of localized roughness shall be based on the following formula: PA = (165 – LR#) 5 Where: PA = Pay Adjustment (dollars) LR# = The Localized Roughness number determined from XXX report for the ride quality threshold

ASPHALT PAVEMENTS - SUPERPAVE. (6-19-12) (Rev. 1-19-16) 605, 609, 610, 650 SP6 R01 Revise the 2012 Standard Specifications as follows: Apply tack coat uniformly across the existing surface at target application rates shown in Table 605-1. New Asphalt 0.04 ± 0.01 Oxidized or Milled Asphalt 0.06 ± 0.01 Concrete 0.08 ± 0.01 Apply tack coat at a temperature within the ranges shown in Table 605-2. Tack coat shall not be overheated during storage, transport or at application. Warm mix asphalt (WMA) is allowed for use at the Contractor’s option in accordance with the NCDOT Approved Products List for WMA Technologies available at: The JMF mix temperature shall be within the ranges shown in Table 610-1 unless otherwise approved. When RAS is used, the JMF mix temperature shall be established at 275ºF or higher. replace the second sentence of the first paragraph with the following: Do not place asphalt material when the air or surface temperatures, measured at the location of the paving operation away from artificial heat, do not meet Table 610-5. Table 610-5 with the following: B25.0B, C 35F I19.0B, C, D 35F SF9.5A, S9.5B 40FA S9.5C, S12.5C 45FA S9.5D, S12.5D 50F Produce the mixture at the asphalt plant within ±25 ºF of the JMF mix temperature. The temperature of the mixture, when discharged from the mixer, shall not exceed 350ºF. Page 6-26, Article 610-8, SPREADING AND FINISHING, line 34, add the following new paragraph: As referenced in Section 9.6.3 of the HMA/QMS Manual, use the automatic screed controls on the paver to control the longitudinal profile. Where approved by the Engineer, the Contractor has the option to use either a fixed or mobile string line. the following after the first sentence in the first paragraph: Smoothness acceptance testing using the inertial profiler is not required on ramps, loops and turn lanes. The interval at which relative profile elevations are reported shall be 2”. Operate the profiler at any speed as per the manufacturer’s recommendations to collect valid data. sentence of the tenth paragraph. After testing, transfer the profile data from the profiler portable computer’s hard drive to a write once storage media (Flash drive, USB, DVD-R or CD-R) or electronic media approved by the Engineer. Submit a report with the documentation and electronic data of the evaluation for each section to the Engineer within 10 days after completion of the smoothness testing. The report shall be in the tabular format for each 0.10 segment or a portion thereof with a summary of the MRI values and the localized roughness areas including corresponding project station numbers or acceptable reference points. Calculate the pay adjustments for all segments in accordance with the formulas in Sections (1) and (2) shown below. The Engineer shall review and approval all pay adjustments unless corrective action is required. The price adjustment will apply to each 0.10-mile section or prorated for a portion thereof, based on the Mean Roughness Index (MRI), the average IRI values from both wheel paths. Areas of localized roughness shall be identified through the “Smoothness Assurance Module (XXX)” provided in the ProVAL software. Use the XXX report to optimize repair strategies by analyzing the measurements from profiles collected using inertial profilers. The ride quality threshold for localized roughness shall be 165 in/mile for any sections that are 15 ft. to 100 ft. in length at the continuous short interval of 25 ft. Submit a continuous roughness report to identify each section with project station numbers or reference points outside the threshold and identify all localized roughness, with the signature of the Operator included with the submitted IRI trace and electronic files. If the Engineer does not require corrective action, the pay adjustment for each area of localized roughness shall be based on the following formula: PA = (165 – LR#) 5 Where: PA = Pay Adjustment (dollars) LR# = The Localized Roughness number determined from XXX report for the ride quality thresholdthreshold (9-20-11) (Rev. 8-21-12) 610 SP6 R03R Revise the 2012 Standard Specifications as follows: Attach a device, mounted on screed of paving equipment, capable of constructing a shoulder wedge with an angle of 30 degrees plus or minus 4 degrees along the outside edge of the roadway, measured from the horizontal plane in place after final compaction on the final surface course. Use an approved mechanical device which will form the asphalt mixture to produce a wedge with uniform texture, shape and density while automatically adjusting to varying heights. Payment for use of this device will be incidental to the other pay items in the contract.

ASPHALT PAVEMENTS - SUPERPAVE. (6-19-12) (Rev. 1-19-16) 605, 609, 610, 650 SP6 R01 Revise the 2012 Standard Specifications as follows: Apply tack coat uniformly across the existing surface at target application rates shown in Table 605-1. New Asphalt 0.04 ± 0.01 Oxidized or Milled Asphalt 0.06 ± 0.01 Concrete 0.08 ± 0.01 Apply tack coat at a temperature within the ranges shown in Table 605-2. Tack coat shall not be overheated during storage, transport or at application. Warm mix asphalt (WMA) is allowed for use at the Contractor’s option in accordance with the NCDOT Approved Products List for WMA Technologies available at: The JMF mix temperature shall be within the ranges shown in Table 610-1 unless otherwise approved. When RAS is used, the JMF mix temperature shall be established at 275ºF or higher. replace the second sentence of the first paragraph with the following: Do not place asphalt material when the air or surface temperatures, measured at the location of the paving operation away from artificial heat, do not meet Table 610-5. Table 610-5 with the following: B25.0B, C 35F I19.0B, C, D 35F SF9.5A, S9.5B 40FA S9.5C, S12.5C 45FA S9.5D, S12.5D 50F Produce the mixture at the asphalt plant within ±25 ºF of the JMF mix temperature. The temperature of the mixture, when discharged from the mixer, shall not exceed 350ºF. Page 6-26, Article 610-8, SPREADING AND FINISHING, line 34, add the following new paragraph: As referenced in Section 9.6.3 of the HMA/QMS Manual, use the automatic screed controls on the paver to control the longitudinal profile. Where approved by the Engineer, the Contractor has the option to use either a fixed or mobile string line. the following after the first sentence in the first paragraph: Smoothness acceptance testing using the inertial profiler is not required on ramps, loops and turn lanes. The interval at which relative profile elevations are reported shall be 2”. Operate the profiler at any speed as per the manufacturer’s recommendations to collect valid data. After testing, transfer the profile data from the profiler portable computer’s hard drive to a write once storage media (Flash drive, USB, DVD-R or CD-R) or electronic media approved by the Engineer. Submit a report with the documentation and electronic data of the evaluation for each section to the Engineer within 10 days after completion of the smoothness testing. The report shall be in the tabular format for each 0.10 segment or a portion thereof with a summary of the MRI values and the localized roughness areas including corresponding project station numbers or acceptable reference points. Calculate the pay adjustments for all segments in accordance with the formulas in Sections (1) and (2) shown below. The Engineer shall review and approval all pay adjustments unless corrective action is required. The price adjustment will apply to each 0.10-mile section or prorated for a portion thereof, based on the Mean Roughness Index (MRI), the average IRI values from both wheel paths. Areas of localized roughness shall be identified through the “Smoothness Assurance Module (XXX)” provided in the ProVAL software. Use the XXX report to optimize repair strategies by analyzing the measurements from profiles collected using inertial profilers. The ride quality threshold for localized roughness shall be 165 in/mile for any sections that are 15 ft. to 100 ft. in length at the continuous short interval of 25 ft. Submit a continuous roughness report to identify each section with project station numbers or reference points outside the threshold and identify all localized roughness, with the signature of the Operator included with the submitted IRI trace and electronic files. If the Engineer does not require corrective action, the pay adjustment for each area of localized roughness shall be based on the following formula: PA = (165 – LR#) 5 Where: PA = Pay Adjustment (dollars) LR# = The Localized Roughness number determined from XXX report for the ride quality thresholdthreshold (9-20-11) (Rev. 8-21-12) 610 SP6 R03R Revise the 2012 Standard Specifications as follows: Attach a device, mounted on screed of paving equipment, capable of constructing a shoulder wedge with an angle of 30 degrees plus or minus 4 degrees along the outside edge of the roadway, measured from the horizontal plane in place after final compaction on the final surface course. Use an approved mechanical device which will form the asphalt mixture to produce a wedge with uniform texture, shape and density while automatically adjusting to varying heights. Payment for use of this device will be incidental to the other pay items in the contract.