324 AIR VOIDS Dense Graded Open Graded Pay Factor Deviation from Spec (±%) Deviation** (±%) 3.0 1.05 !DQG 7 > 3 DQG 4.0 1.00 4.1 0.98 1.8 4.2 0.96 4.3 0.94 4.4 0.92 1.9 4.5 0.90 2.0 4.6 0.84 4.7 0.78 4.8 0.72 4.9 0.66 5.0 0.60 > 2.0 > 5.0 Submitted to the Division of Materials and Tests* * Test results will be considered and adjudicated as a failed material in accordance with normal Department practice as listed in 105.03. ** Deviation shall be from 17.5% for OG25.0 mm and OG19.0 mm mixtures and shall be from 14.5% for OG9.5 mm mixtures. For mixtures produced during a plant’s adjustment period, pay factors based on the DMF with the above tolerances will be used to compute quality assurance adjustments. Sublot test results for density will be assigned pay factors in accordance with the following: DENSITY Percentages are based on %MSG Pay Factors, % Dense Graded 8.0 Submitted to the Division of Materials and Tests* 97.0 - 97.9 1.00 96.6 - 96.9 1.05 - 0.01 for each 0.1% above 96.5 95.0 - 96.5 1.05 94.1 - 94.9 1.00 + 0.005 for each 0.1% above 94.0 93.0 - 94.0 1.00 92.0 - 92.9 1.00 - 0.005 for each 0.1% below 93.0 91.0 - 91.9 0.95 - 0.010 for each 0.1% below 92.0 90.0 - 90.9 0.85 - 0.030 for each 0.1% below 91.0 9.9 Submitted to the Division of Materials and Tests* * Test results will be considered and adjudicated as a failed material in accordance with normal Department practice as listed in 105.03. 401.19 The pay factors will be rounded to the nearest 0.01.
c.Smoothness 840 Smoothness pay adjustments will only be applied when the smoothness is measured by an inertial profiler in accordance with 401.18(a). The Mean Roughness Index, MRI, will be determined utilizing a fixed interval for each lane for each 0.1 mile section of paving. The MRI for a 0.1 mile section will be the average of the IRI of the two wheel paths. Categorized segments shall be as follows: 1. Type A. Pavement on a non-interstate with more than a single opportunity to achieve a smooth ride or asphalt pavement on an 850 interstate with a single opportunity or more. The following operations, if performed on the contract, will be considered opportunities.
a.A layer of HMA base, intermediate, and surface; each layer is an opportunity. Wedge and level will not be considered an opportunity.
b.Profile milling to correct cross slope is considered an opportunity prior to placing base, intermediate, or 860 surface HMA.
2.Type B. Pavement that is not included in the description above under Type A. At locations where an inertial profiler is used to accept smoothness, a quality assurance adjustment will be determined for each lane. This adjustment will be applied to all QC/QA HMA pay items within the pavement section. The adjustment will be calculated using the following formula: 870 where: qs = quality assurance adjustment for smoothness for one section PFs = pay factor for smoothness n = number of layers A = area of the section, sq yd S = planned spread rate for material, lb/sq yd T = conversion factor: 2,000 lb/ton U = unit price for the material, $/ton. 401.19 The quality assurance adjustment for smoothness, Q s, for the contract will be the total of the quality assurance adjustments for smoothness, q s, on each section by the following formula: Qs T s When smoothness is measured by an inertial profiler, payment adjustments will 880 be made for any 0.1 mile section based on initial MRI generated on the surface course only and in accordance with the following ta ble. Smoothness correction, if required, shall be in accordance with 401.18(e). The MRI pay factors for smoothness will be determined prior to any required smoothness correction. PAY FACTORS FOR SMOOTHNESS Posted Speed greater than 45 mph MRI, in./mi. Pay Factor, PF over 0 to 35 1.06 over 35 to 40 1.05 over 40 to 45 1.04 over 45 to 50 1.03 over 50 to 55 1.02 over 55 to 60 1.01 over 60 to 70 1.00 over 70 to 75 0.99 over 75 to 80 0.98 over 80 to 85 0.96 over 85 to 90 0.95 over 90 For Type A, PFs will be 0.95 and the section shall be corrected to 70 or less. over 90 to 110 For Type B, PFs will be 0.95 and the section does not require correction. over 110 For Type B, PFs will be 0.95 and the section shall be corrected to 90 or less.
401.20 Appeals (a) Dense Graded Mixtures and Open Graded Mixtures 890
If the QC test results do not agree with the acceptance test results in a sublot, a request, along with a comparison of the QC and acceptance test results, may be made in writing for additional testing of that sublot. The appeal sample will be analyzed in 401.20 327 a lab different than the lab th at analyzed the original samp le at the discretion of the Engineer. The Contractor may appeal an individual sublot for the binder content, the MSG, the BSG of the gyratory specimens, or the BSG of the density cores when the QC results are greater than one standard devi ation from the acceptance test results as follows: 0.25 for binder content, 0.010 for the MSG and BSG of the gyratory 900 specimens, and 0.020 for the BSG of the density cores. Upon request from the Contractor, the BSG of the density core may be exempted from the individual sublot appeal if both the QC and QA results show a %MSG for the density greater than or equal to 93.0%. A $500.00 credit adjustment will be include d in a quality adjustment pay item in accordance with 109.05.1(d) for each appeal ed sublot that did not result in an improvement to the SCPF or Lot PF. 910 A written request for an appeal shall be submitted within seven calendar days of receipt of the Department’s written results for the lot accepted under 401.19(a) or the sublot accepted under 401.19(b). The conditions for an extended lot appeal are as follows:
1.one appeal will be allowed for the entire extended lot if the Contractor informs the Department of the anticipated extended lot condition within seven calendar days of receipt of the lot results, or
2.one appeal will be allowed only for the extended sublots if the Contractor did not inform the Department of the anticipated extended lot condition within seve n calendar days of receipt of the lot results. The backup sample will be tested in accordance with the applicable test method for the sublot requested for all tests exceeding the sublot standard deviation criteria.
1.MSG The backup MSG will be dried in accordance with ITM 572 and mass determined 930 in water in accordance with AASHTO T 209.
2.BSG of the Gyratory Specimen New gyratory specimens will be prepared and tested in accordance with AASHTO T 312 from the backup sample.
3.Binder Content The backup binder content sample will be prepared and tested in accordance with ITM 571. 940 401.20 328 4. BSG of the Density Core Additional cores shall be taken within seven calendar days unless otherwise directed. Additional core locations will be determined by adding 1 ft longitudinally of the cores tested using the same transverse of fset. The appeal density cores will be dried in accordance with ITM 572 and tested in accordance with AASHTO T 166, Method A or AASHTO T 331, if required. The appeal results will replace all previous test result for acceptance of mixture in accordance with 401.09 and density in acco rdance with 401.16. The results will be furnished to the Contractor. 950
b.Smoothness The Department will perform annual Qua lity Assurance reviews of a portion of each Contractor’s MRI results in accordance with ITM 917. The Contractor’s results will be compared to the Department’s. The Department will notify the Contractor of unacceptable results in a timely manner. The Department will allow an appeal period of 14 days during which time the Contractor shall submit a written request and appeal results for Department review. If the Contractor’s appeal results do not agree with the Department’s results, the Contractor shall be required to perform a side-by-side evaluation. The Department’s results will be utilized for smoothness payment in place 960 of the Contractor’s results unless the Contract or’s appeal results are determined to be acceptable for payment. Sections where corr ective action has taken place prior to the Department’s data collection will utilize the Contractor’s initial results prior to corrective action for payment.
401.21 Method of Measurement
HMA mixtures will be measured by the ton of the type specified, in accordance with 109.01(b). The measured quantity will be divided by the MAF to determine the pay quantity. 970 Milled shoulder corrugations will be measured in accordance with 606.02. Joint adhesive will be measured by the linear foot in accordance with 109.01(a). Liquid asphalt sealant will be measured by the linear foot. 401.22 Basis of Payment The accepted quantities for this work will be paid for at the contract unit price per ton for QC/QA-HMA, of the type specified, complete in place. Payment for furnishing, calibrating, operating the inertial profiler, and furnishing 980 IRI profile information will be made at the contract lump sum price for Inertial Profiler, HMA. Furnishing and operating the 16 ft straightedge shall be included in the cost of other pay items within this section. 401.21 329 Adjustments to the contract payment with respect to mixture, density, and smoothness for the mixture produced will be included in a quality adjustment pay item in accordance with 109.05.1. Milled shoulder corrugations will be paid for in accordance with 606.03. Joint adhesive will be paid for at the contract unit price per linear foot, complete in place. Liquid asphalt sealant will be paid for at the contract unit price per linear foot. Payment will be made under: Pay Item Pay Unit Symbol Inertial Profiler, HMA ............................................................... LS 1000 Joint Adhesive , __________ ..................................................... LFT course type Liquid Asphalt Sealant .............................................................. LFT QC/QA-HMA, ______, ______, ______, ______mm .............. TON (ESAL (1)) (PG(2)) (Course(3)) (Mix(4))
1.ESAL Category as defined in 401.04
2.Number represents the high temperature binder grade. Low temperature grades are - 22
3.Surface, Intermediate, or Base
4.Mixture Designation 1010 Preparation of surfaces to be overlaid shall be included in the cost of other pay items. Coring and refilling of the core holes shall be included in the cost of other pay items within this section. No payment will be made for additional anti-stripping additives, appeal coring, or traffic control expenditures related to coring operations. 1020 The cost of removing and replacing soft and yielding areas shall be included in the cost of other pay items in this section. Corrections for pavement smoothness sha ll be included in the cost of other pay items within this section. The price for Inertial Profiler, HMA will be full compensation regardless of how often the inertial profiler is used or how often the IRI is determined. If QC/QA-HMA 19.0 mm over QC/QA- HMA 25.0 mm mixtures are specified, 1030 QC/QA-HMA 19.0 mm mixture may be considered as a substitute for the QC/QA-HMA 19.0 mm and QC/QA-HMA 25.0 mm mixtures upon a written request by the Contractor. The request for the substitution shall be prepared in advance of the work. 401.22 330 A computation will be made in order to obtain a unit price for the QC/QA-HMA 19.0 mm mixture. The quantity and amount for QC/QA-HMA 19.0 mm mixture shall equal the sum of the contract quantities and amounts shown for QC/QA-HMA 19.0 mm and QC/QA-HMA 25.0 mm mixtures. The unit price for QC/QA-HMA 19.0 mm mixture shall be equal to the sum of contract amounts divided by the sum of contract quantities. Payment for the QC/QA-HMA 19.0 mm mixture will be made at the unit price per ton for QC/QA-HMA 19.0 mm mixture. No payment will be made for additional work or 1040 costs which may result due to this change.
Source: Indiana Standard Specifications, 2024 Edition. Pages 334–339 of 1,248.