360 Transverse joints shall be constructed by exposing a near vertical full depth face of the previous course. For areas inaccessible to rollers, other mechanical devices shall be used to achieve the required density. If constructed under traffic, temporary transverse joints shall be feathered to provide a smooth transition to the driving surface. 410.16 Density Acceptance will be based on lots a nd sublots in accordance with 410.07. The Engineer’s acceptance test results for each sublot will be available after the sublot and testing are complete. Sublot and lot density values will be reported to the nearest 0.1%. Rounding will 340 be in accordance with 109.01(a). Density acceptance for all SMA mixtures shall be based on cores cut from the compacted pavement and analysis of pave ment samples obtained in accordance with ITM 580. Acceptance will be based on lots and sublots in accordance with 410.07. The Engineer will randomly select two locat ions in accordance w ith ITM 802, within each sublot for coring. The transverse core lo cation will be located so that the edge of the core will be no closer than 3 in. from a confined edge or 6 in. from a non-confined edge of the course being placed. The maximum specific gravity will be determined from the sample obtained in 410.09. 350 The Contractor shall obtain cores in the presence of the Engineer with a device that shall produce a uniform 6.00 ±0.25 in. diameter pavement sample. Surface courses shall be cored within one work day of pl acement. Damaged core shall be discarded and replaced with a core from a location se lected by adding 1 ft to the longitudinal location of the damaged core using the same transverse offset. The Contractor and the Engineer shall mark the core to define the course to be tested. If the core indicates a course thic kness of less than two times the maximum particle size, the core will be discarded an d a core from a new random location will be 360 selected for testing. Cores shall not be obtained from areas placed with paving equipment in accordance with 409.03(c)2 or 409.03(c)3. If a random location falls within this area, the Engineer will randomly select another loca tion within the sublot for coring. If an entire sublot falls within this area, test results from the previous sublot will be used for acceptance. If the previous sublot is not available, the subsequent sublot will be used for acceptance. The Engineer will take immediate possession of the cores. If the Engineer’s cores 370 are subsequently damaged, additional coring within a specific sublot or sublots will be the responsibility of the Department. Subsequent core locations will be determined by 410.16 361 subtracting 1 ft from the random location using the same transverse offset. The density of the mixture will be expressed as: Density, % = BSG MSG x 100 where: BSG = average bulk specific gravity MSG = maximum specific gravity 380 Samples for the bulk specific gravity and maximum specific gravity will be dried in accordance with ITM 572. The Engineer will determine the bulk specific gravity of the cores in accordance w ith AASHTO T 166, Method A or AASHTO T 331, if required. The maximum specific gravity will be mass determined in water in accordance with AASHTO T 209. The target value for density of SMA mixtures of each sublot shall be 93.0%. The densities of the sublots will be averaged to determine the density of the lot. 390 Within one work day of coring operations, the Contractor shall clean, dry, and refill the core holes with either SMA of similar or smaller size particles or bridge deck repair material from the QPL of Rapid Setting Patch Materials. The rapid setting patch material shall be mixed in a separate cont ainer and placed in the hole in accordance with the manufacturer’s recommendations, consolidated by rodding, and struck-off flush with the adjacent pavement. The Contractor’s plan for refilling core holes shall be outlined in the QCP.
410.17 Pavement Corrugations Pavement corrugations shall be in accordance with 606. 400
410.18 Pavement Smoothness
The pavement smoothness will be eval uated and determined in accordance with
401.18 410.19 Adjusted Points
When test results for mixture properties or density exceed the allowable tolerances, adjustment points will be assessed. The adjustment points will be used to calculate a quality assurance adjustment quantity, q, for the lot. Quality assurance adjustment points for smoothness w ill be in accordance with 401.19(c). 410 The adjustment for mixture properties and density are calculated as follows: q = 1.00 x (L x U x P/100)/MAF where: q = quality assurance adjustment quantity L = lot quantity 410.19 362 U = unit price for the material, $/ton P = total adjustment points The total quality assurance adjustments is to be calculated as follows: Q = Q s T m + q d) where: 420 Q = total quality assurance adjustment quantity Qs = quality assurance adjustment for smoothness as calculated in 401.19(c) qm = lot adjustments for mixtures qd = lot adjustments for density If the total adjustment points for a lot are greater than 15, the pavement will be evaluated by the Division of Materials and Tests. If the Contractor is not required to remove the mixture, quality assurance adjustments of the lot will be assessed or other corrective actions as determined by th e Division of Materials and Tests.
a.Mixture When test results for the mixture furnished exceeded the allowable tolerances, adjustment points will be assessed as follows: ADJUSTMENT POINTS FOR GRADATION Adjustment Points Sieve Size 25.0 mm 19.0 mm 12.5 mm 9.5 mm 4.75 mm 2.36 mm 600 μm 75 μm For each 0.1% up to 1.0% out of tolerance 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.3 For each 0.1% above 1.0% out of tolerance 0.1 0.1 0.1 0.1 0.1 0.2 0.3 0.6 Gradation adjustment points for the lot shall be the sum of points calculated for up to 1% out of tolerance and the points calculated for greater than 1% out of tolerance in accordance with 410.09. Binder content adjustment points for the lot shall be two points for each 0.1% above the tolerance or four points for each 0.1% below the tolerance in accordance with 410.09. 440 When test results for the mixture fu rnished exceed the allowable range in accordance with 410.09, adjustment points will be assessed as follows: 410.19 363 ADJUSTMENT POINTS FOR RANGE Sieve Size and Binder Content Adjustment Points (For each 0.1% out of range) No. 8 (2.36 mm) 0.1 No. 30 (600 μm) 0.1 No. 200 (75 μm) 0.1 % Binder 1.0 For mixtures produced during a certified HMA plant’s adjustment period, adjustment points will not be assessed if the mixture produced is in accordance with the following: 1. The gradation complies with 410.05 with the allowable tolerance limits shown in 410.09. 450
2.The range for the binder content and gradation do not exceed the limits shown in 410.09.
3.The binder content is within the tolerance requirements of 410.09. If the mixture is not in accordance with these requirements, adjustment points will be assessed in accordance with 410.09 for variations exceeding the requirements shown above. 460
b.Density When the density of the lot is outside the allowable tolerances, adjustment points will be assessed as follows: DENSITY Percentages are based on %MSG Pay Adjustments, % > 97.0 Submitted to the Division of Materials and Tests* 93.0 – 97.0 0.00 92.0 – 92.9 0.20 points for each 0.10% below 93.0 91.0 – 91.9 2.00 + 0.40 points for each 0.10% below 92.0 89.0 – 90.9 6.00 + 1.00 points for each 0.10% below 91.0 Submitted to the Division of Materials and Tests* * Test results will be considered and adjudicated as a failed material in accordance with normal De partment practice as listed in 105.03.
410.20 Appeals If the QC test results do not agree with the acceptance test results, a request, along
with the QC test results, may be made in writing for additional testing. Additional 410.20 364 testing may be requested for one or more of the following tests: binder content, 470 gradation, or MSG of the mixture samples, and bulk specific gravity of the density cores. The request for the appeal for MSG, BSG of the density cores or binder content and gradation shall be submitted within seven calendar days of receipt of the Department’s written results for that sublot. The sublot and specific tests shall be specified at the time of the appeal request. Only one appeal request per sublot is allowed. Once the appeal request has been granted, the Engineer will perform additional testing. The appeal results will replace all previo us test results for acceptance of mixture in accordance with 410.09 and density in acco rdance with 410.16. The results will be 480 furnished to the Contractor. The backup mixture samples or density cores will be tested in accordance with the following:
a.MSG The backup MSG will be dried in accordance with ITM 572 and mass determined in water in accordance with AASHTO T 209. (b) Binder Content and Gradation The backup binder content and gradation sample will be prepared and tested in accordance with the test methods that were used for acceptance. 490
c.BSG of the Density Core Cores shall be taken within seven calendar days unless otherwise directed. Additional core lo cations will be determined by adding 1 ft longitudinally of the cores tested using the same transverse offset. The 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 Contractor shall clean, dry, and refill the core holes with SMA or HMA surface materials within one wo rk day of the coring operations.
410.21 Method of Measurement 500
SMA 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. Joint adhesive will be measured by the linear foot in accordance with 109.01(a).
410.22 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, – SMA, complete in place. 510 Payment for furnishing, calibrating, operating the inertial profiler, and furnishing IRI profile information will be made in accordance with 401.18. Furnishing and operating the 16 ft straight edge shall be included in the cost of other pay items within this section. 410.21 365 Joint adhesive will be paid for by the linear foot, complete in place. Adjustments to the contract payment with respect to mixture, density, and smoothness for mixture produced will be included in a quality assurance adjustment 520 pay item. The unit price for this pay item will be $1.00 and the quantity will be in units of dollars. The quantity is th e total calculated in accord ance with 410.19. A change order will be prepared to reflect contract adjustments in accordance with 109.05. Payment will be made under: Pay Item Pay Unit Symbol Joint Adhesive, ____________ ................................................. LFT course type 530 QC/QA - HMA, _____, _____, _____, ______ mm, - SMA .... TON (ESAL (1))(PG(2))(Course(3))(Mix(4)) Quality Assurance Adjustment .................................................. DOL
1.ESAL Category as defined in 410.04
2.Number represents the high temperature binder grade. Low temperature grades are - 22
3.Surface or Intermediate
4.Mixture Designation Preparation of surfaces to be overlaid sh all be included in the cost of other pay 540 items within this section. Coring and refilling of the pavement 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 related traffic control expenditures for coring operations. Corrections for pavement smoothness sha ll be included in the cost of other pay items within this section. 550 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.
Source: Indiana Standard Specifications, 2024 Edition. Pages 17–22 of 1,248.