213 Any patching or leveling mixture placed on a subbase or base co urse constructed in the same Contract with the asphalt items shall be at the expense of the Contractor. No additional compensation will be allowed for the material or any work incidental to its placement unless otherwise approved by the Engineer. No additi onal measurement is necessary nor will addition compensation be allowed for the placement of Safety Edge.
410.13 Basis of Payment :
The quantities determine as provided above, will be paid for at the contract unit price for the items listed below, which prices and payment shall be full compensatio n for furnishing all the materials and doing all the work herein prescribed in a workmanlike and acceptable manner, including all labor, tools, equipment, field laboratory, supplies, tack coat, and incidentals necessary to complete the work and provide the performance criteria specified. There will be no additional compensation for Interim Pavement Markings .
410.13.1 When a Lot of asphalt material is found not in compliance with the tolerance
requirements for asphalt content and gradation as shown in MP 401.02.31, it shall be subject to a price adjustment in accordance with the criteria for Determination of Percent Within Limits established in MP 401.13.50 and pay factors in Table 410.13.3.1.
410.13.2 : Blank
410.13.3 For Interstates and divided NHS Highways, the unit price for each Lot of asphalt
pavement Mat shall be adjusted as follows in Table 410.13.3.1 in accordance with MP 401.13.50. For two -lane and non -divided NHS Routes, the pay factor for asphalt content and percent passing the 75 μm (No. 200) sieve shall be determined by Table 410.13.3.1. However, the mat density pay factor shall be determined by Table 410.13.7.2. TABLE 410.13.3.1 Percentage of Material Within Specification Limits (PWL) Lot Pay Factor (Percent of Contract Unit Price) 90-100 100 75-89 [(0.5)PWL]+55 55-74 Note 1 [(1.4)PWL] -12 Note 1 Material with a PWL less than 55 is considered defective and will be considered for removal and replacement of the lot. If only one lot characteristic has a percent within limits less than 55, the Engineer, may allow the Contractor to leave the defective lot in place. The decision to remove and replace the subject lot shall include evaluation of all lot characteristics for pay and surface characteristics as per guidelines set forth in MP
401.07.25 If the material is left in place, the Department will pay for the defective lot at
a value not to exceed 50% of the contract unit price of asphalt per square yard. (i.e., Contract unit pr ice = $10 sy → $5 sy max) 214 410.13.3.1 -Price Adjustment: The Division will compute the percent of the contract unit price paid as follows: Lot Payment = CP (2PD + PB + PA) / 400 Where: CP = Contract unit price per lot (unit price times lot quantity) PD = Payment Factor Percentage for mat density PB = Payment Factor Percentage for asphalt content. PA = Payment Factor Percentage for percent passing the 75 μm (No. 200) sieve Shoulders and ramps shall be included in penalty calculations for mixture and compaction unless they are constructed independently, where the density requirements shall be waived. When compaction requirements are waived, PD will be minimum of 100.
410.13.4 Joint Density Adjustments: For Interstates and divided NHS Highways, joint
Density PWL calculations shall be in accordance with MP 401.13.50. Joint Density negative adjustments will be calculated for joint lots with a PWL less than or equal to 60 . Price adjustments shall be calculated using the formula below. There will be no adjustment for joint lots who’s PWL is greater than 60. Negative adjustment calculated as follows: $T= 60−PWL 60 X 12,500 Adjustments calculated for lots less than or greater than 10,000 feet in length shall be prorated directly proportional to the amount of length less than or greater than 10,000 feet. For two -lane and non -divided NHS Routes, refer to Section 410.13.7.3.
410.13.5 Thickness Adjustments : No payment will be made for pavement areas deficient
in thickness by more than 35% T. Pavement which is deficient in thickness by more than 50% T is considered to be inadequate to perform satisfactorily and shall be removed and replaced at no added cost to the Division. The balance of the item, the portion of the item not treated in the manner set forth above, will be treated in the manner set forth in 410.13.5.1 below.
410.13.5 1 -Price Adjustments for Thickness : When all individual measurements
meet or exc eed the specified thickness, there will be no adjustment for payment. If any individual values or when the average value of the pavement thickness per lot is less than the specified total thickness, the quantity of pavement represented by this average thickness will be paid by a direct calculation as defined as follows: Price Adjustment %=(t T)x100 Where: T = Total Plan Thickness t = avg. lot thickness + 0.04 in ch. This value is then applied to the unit price for the asphalt place in the lot, this adjustment shall remain separate from the PWL adjustments for AC, Gradation, Density, etc.
410.13.6 Bond Strength Adjustment: For Interstates and divided NHS Routes, bond
Strength PWL calculations shall be in accordance with MP 401.13.50, Guide to Statistical Analysis of Material Using Quality Level Analysis -Percent within Limits. However, for the purpose of relieving large standard deviations from abnormally strong samples, any sample with a strength exceeding 150 psi will be evaluated as 150 psi instead of the actual strength. The actual strength shall still be recorded as such on the reporting form. Bond Strength Negative adjustment will be calculated for lots with PWL less than or equal to 70. There is no adjustment for bond Strength lots who’s PWL is greater than 70. Negative adjustment calculated as follows: $T= 70−PWL 70 X 25,000 Adjustments calculate for lots less than or greater than the standard 2,500 tons shall be prorated directly proportional to the amount of tonnage less than or greater than 2,500 tons. This shall be calculated on the theoretical tonnage for the lot, not the actual tonnage used. For two -lane and non -divided NHS Routes, refer to Section 410.13.7.4.
410.13.7 Two -Lane and Non -divided NHS Route Exceptions : Due to the wide range
of variability on the roadway, the following exceptions for lot/sublot layout and analysis of existing condition dependent test results shall apply:
410.13.7 1 -Acceptance Testing of Asphalt: A lot shall consist of three (3) to seven
7.equal sublots. A normal sublot size is 500 tons unless operational conditions and sublo t size dictate otherwise. Determine the number of sublots on the project by converting the square yardage of the travel lanes and simultaneously paved shoulders to tonnage. Divide the tonnage by 500 and round to the nearest whole number (n). Use that numbe r (n) in Table 410.13.7.1 to determine the number of lots to be used for acceptance. TABLE 410.13.7.1 Number of Sublots (n) Number of Lots 3 to 7 1 Lot with (n) even sublots 8 2 Lots with 4 even sublots each 9 2 Lots - Lot 1, 5 Sublots / Lot 2, 4 Sublots 10 2 Lots with 5 even sublots each 11 2 Lots - Lot 1, 6 Sublots / Lot 2, 5 Sublots 12 2 Lots with 6 even sublots each 13 2 Lots - Lot 1, 7 Sublots / Lot 2, 6 Sublots 14 3 Lots - Lot 1, 5 Sublots / Lot 2, 5 Sublots / Lot 3, 4 Sublots 15 3 Lots with 5 even Sublots each Turn lanes, intersections, and independently constructed shoulders shall not be subject to price adjustments if the combined square yardage converts to less than 500 tons. If the square yardage converts to over 500 tons, then one additional sublot for asph alt content, percent passing the 75 μm (No. 200) sieve, and bond strength shall be added to the last lot constructed. Compaction shall be monitored, documented, and submitted to the Engineer 216 by a certified Asphalt Field and Compaction Technician to assure that it meets specification requirements.
410.13.7 2 -Basis of Payment: The payment factor for density shall be adjusted as
follows in Table 410.13.7.2. This payment factor (PD) will then be used in the Lot Payment calculation formula in Section 410.13. 3.1. TABLE 410.13.7.2 Payment Factors for Pavement Mat Density Average Lot Percent Density Payment Factor (PD) Greater than 98 % Note 1 91.50% to 98.00% 100 88.00% to 91.49% = 100 – 4*(91.50% - Percent density) Less than 88% = 84 – 10*(88% - Percent density) Note 2 Note 1 High mat density is only a problem if it leads to asphalt flushing on the surface of the mat or rutting due to an unstable mix. The Division will make a special evaluation of the material and determine the appropriate action. Note 2 When the density decreases, the mat will be more susceptible to accelerated deterioration and a decrease in the expected service life of the pavement. For mat densities less than 88%, the percent of Contract Bid Price will be decreased by an additional 10% per percentage of mat density less than 88%, unless a Special evaluation performed by the Division determines a more appropriate action.
410.13.7 3 -Joint Density Adjustments: The adjustment for joint density shall be
determined by Table 410.13.7.3. This adjustment is per linear foot and will be multiplied by the total number of linear feet in the lot to determine the total lot adjustment. This is calculated per lot and applied per Section 410.13. 8.3. TABLE 410.13.7.3 Pay Adjustment for Pavement Joint Density per Linear Foot Average Lot Percent Density Price Adjustment ($ / LF) Greater than 97 % Note 3
89.00 % to 97.00% 0
88.00% to 88.99% -0.20 Less than 88% = [{0.50*(Percent Density – 88.00)} – 0.20] Note 3 Joint density slightly above 97% is normally only a problem if it leads to asphalt flushing on the surface of the mat or rutting due to an unstable mix. The Division will make a special evaluation of the material and determine the appropriate action. 217 410.13.7.4 -Bond Strength Adjustments: The adjustment for bond strength shall be determined by Table 410.13.7.4. This is calculated per lot and applied per Section 410.13.8.4. This shall be calculated on the theoretical tonnage for the lot, not the actual tonnage used . TABLE 410.13.7.4 Pay Adjustment for Bond Strength per 2500 Ton Lot Average Lot Bond Strength (PSI) Price Adjustment ($ / Lot)
100.00 and Greater 0
75.00 to 99.99 = [{1,000*(PSI - 75.00)} – 25,000]
Less than 75.00 – 25,000
410.13.8 Lot Payment Calculations: The pay factors that are calculated with in the
specification are to be applied in the following way:
410.13.8 1 -PWL Factors: The calculated total PWL for a given lot is applied to the
bid unit price for the asphalt mixture in the lot. Once the unit pr ice has been adjusted the quantities can be calculated to arrive at the payment for the lot.
410.13.8 2 -Thickness Adjustment: There is no adjustment for thickness greater than
the thickness that is specified in the plans. If there is a Price Adjustment (Section 410.13.5) for thickness this factor (percentage) is applied to the contract bid unit price times the quantity in the lot to arrive at a dollar amount penalty. This penalty is applied to the overall payment for the lot.
410.13.8 3 -Joint Density Adjustment: If it is determined in Section 410.13.4 of this
specification that a Joint Density Adjustment is warranted the dollar amount determined in the formulas of Section 410.13.4 or Table 410.13.7.3 shall be applied to the overall payment for the lot.
410.13.8 4 -Bond Strength Adjustment: If it is determined that a Bond Strength
Adjustment is warranted the formulas in Section 410.13.6 or Table 410.13.7.4 shall be used to calculate the adjustment. This adjustment shall be a pplied to the overall payment for the lot.
410.14 Pay Items :
ITEM DESCRIPTION UNIT 410001 -* “design method” Asphalt Base Course, Type “mix type” Square Yard 410002 -* “design method” Asphalt Wear Course, Type “mix type” Square Yard 410007 -* “design method” Asphalt Skid Pavement, Type “mix type” Square Yard * Sequence number “design method” shall be either Marshall or Superpave “mix type” from Table 401.4.2A or 401.4.2B SECTION 411 THROUGH SECTION 414-BLANK
Source: West Virginia Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 229–233 of 1,006.