SECTION 416: MINOR PAVING
416.1 Description
This Work consists of construc ting one (1) or more pavement co urses of Hot Mix Asphalt (HMA) or Warm Mix Asphalt (WMA ) on a prepared base or milled su rface, and to include crushing, stockpiling, hauling, asphalt binder, mineral admixtu re, mix design, mixing, providing cold feeds, process control testing, and placement.
416.2 Materials
The Contractor shall use Materials for minor paving in accorda nce with Section 423.2, “Materials.” 416.3 CONSTRUCTION REQUIREMENTS The Contractor shall perform minor paving in accordance with t he following 423 Sections or the correlating 424 Sections: 1. Section 423.3.1, “Construc tion Requirements, General;” 2. Section 423.3.2, “Mix Temperature Requirements;” 3. Section 423.3.3, “Addition of Mineral Admixtures;” 4. Section 423.3.4, “Equipment;” and 5. Section 423.3.5, “Placement O perations” excluding 423.3.5.7, “ T e s t S t r i p & Shakedown Period.” No referee testing will be requi red for Minor Paving, but may be used if both parties agree in writing at the Pre-Pave Conference. If used, referee testin g will be done in accordance with Sections 423.3.7, “Dispute Reso lution” and 424.3.7, “Dispute Re solution.”
416.3.1 Sampling and Testing
416.3.1 1 Contractor Quality Control
The Contractor shall provide quality control measures in accordance with Section 902 , “Quality Control.”
416.3.1 2 Department Quality Assurance
The Department will provide quality assurance measur es in accordance with Section 9 03, “Quality Assurance.”
416.3.1 2.1 Acceptance
The Department will Accept the constructed product based on in spection and on Laboratory testing for conformance with the Contract. The Depa rtment will test samples of HMA/WMA taken from the Roadway before compaction. The Departme nt will Accept the constructed product based on the following criteria: 1. Air voids as determined from Laboratory-compacted specimens in accordance with AASHTO T 166 and AASHTO T 209; 2. Asphalt content as determined by the tank strap method or pl ant asphalt metering system defined in the Contractor’s Quality Control Plan (binder ignition oven calibration samples will not be required); Section 416: Minor Paving Page 203 3. Final thickness of the compacted Material as measured from c ores in accordance with ASTM D 3549; and 4. Density of the compacted Roadbed as determined in accordance w i t h AASHTO T 310, Standard Method of Test for In-Place Density and Moisture Content of Soil-Aggregate by Nuclear Methods (Shallow Depth). D aily densities will be calculated using the current running average Gmm for the lot . The Contractor shall provide cores from three (3) locations designated by the Project Manager for correlation with the Nuclear Densometer. A new correlation fac tor can be requested if a change in Materials or conditi ons has occurred or if the a ccuracy of the established correlation factor is in question. The Project Manager may reject Material that appears to be def ective based on visual inspection. Department representatives, certified in the relevant test pro cedures by the State Materials Bureau through TTCP, will perform Acceptance testing in accordance with AASHTO or Department methods, using the test methods and modifications in the current TTCP Manual.
416.3.1 2.1.1 Acceptance Lots and Pay Factor Determination
The Contractor shall identify the proposed Lot size in the Qua lity Control Plan for approval by the Project Manager. The Department will Accept de nsity based on the average of all nuclear density tests per Lot, taken at a minimum of ten (10) nuclear density tests per Lot, and will Accept air voids and asphalt content based on the average of a minimum of three
3.tests per Lot. The Department will determine pay factors in accordance with: 1. Table 416.3.1.2.1:1, “Price Adjustments for Density,” 2. Table 416.3.1.2.1:2, “Price Adjustments for Air Voids,” 3. Table 416.3.1.2.1:3, “Price Adjustments for Asphalt Content, ” and 4. Table 416.3.1.2.1:4 “Price Adjustment for Thickness.” The Department will obtain the TVs for asphalt content and air voids from the approved JMF and will determine payment for each Acceptance lot by multi plying the Bid Item Unit Price by the average of the pay factors per lot and multiplying the result by the total lot area or tonnage. Table 416.3.1.2.1.1:1 Price Adjustments for Correlated In-place Nuclear Density Percent density Pay factor (%) > 97.99 Reject 97.0 – 97.99 90 96.0 – 96.99 95 92.50 – 95.99 100 91.50 – 92.49 95 90.50 – 91.49 90 90.00 – 90.49 80 < 90.00 Reject Table 416.3.1.2.1.1:2 Price Adjustment for Air Voids Percent deviation from TV Pay factor (%) < 1.4 100 1.41 – 1.69 90 1.7 – 1.99 75 ≥ 2.0 Reject Table 416.3.1.2.1.1:3 Price Adjustment for Asphalt Content Percent deviation from TV Pay factor (%) < 0.35 100 0.36 – 0.55 90 ≥0.56 Reject Table 416.3.1.2.1.1:4 Price Adjustment for Thickness Deficiency from plan minimum thickness Pay factor (%) None (Plan Minimum or Thicker) 100 <1/4 inch 100 1/4 inch–1/2 inch 90 1/2 inch–3/4 inch 75 3/4 inch–one (1) inch 50 >one (1) inch Corrective action The Contractor shall remove and replace rejected Material iden tified in Table 416.3.1.2.1:1, “Price Adjustment for Density,” Table 416. 3.1.2.1:2, “Price Adjustment for Air Voids,” and Table 416.3.1.2.1:3, “Price Adjustments for Asp halt Content.” Instead of removing and replacing rejected Material, the Project Manager m ay allow the Material to remain in place at 50% of the Bi d Item Unit Price, if in the be st interest of the Department. The Contractor shall take corrective action if specified in Ta ble 416.3.1.2.1:4, “Price Adjustment for Thickness.” Co rrective action includes removal and replacement of the unacceptable Material, overlay of the unacceptable Material, or other corrective actions approved by the Project Manager. Thin or feathered edge surfac e patching is not Acceptable. Overlay lift thicknesses must meet the requirement of Table 416 .3.1.2.1:5, “HMA/WMA Lift Thickness.” Table 416.3.1.2.1.1:5 HMA/WMA Lift Thickness HMA Type Lift Thickness (Inches) Minimum Maximum SP-III 2.5 3.5 SP-IV 1.5 3.0 SP-V 0.75 1.5
416.3.1 3 Independent Assurance Testing
Section 416: Minor Paving Page 205 The Department will perform Independent Assurance sampling and testing in accordance with Section 906, “Minimum Testing Requirements.”
416.4 Method of Measurement
If the Department measures by the square yard, the Department will measure minor pavement using the dimensions sho wn in the Contract or approve d field measurements.
416.5 Basis of Payment
The Department will adjust payment for minor pavement in accor dance with Section
416.3.1 2.1.1, “Acceptance Lots and Pay Factor Determination.”
Pay Item Pay Unit Minor Pavement Ton or Square Yard
416.5.1 Price Adjustments
The Department will pay for Accepted quantities of Minor Pavem ent at the Bid Item Unit Price, adjusted in accordance with this section. The Minor Pav ement will be evaluated on a lot-by-lot basis at a price det ermined by multiplying the Bid I tem Unit Price by the composite pay factor for the lot. The De partment will use the sum of Tab le 416.5.1.1:1, “Weighting Factors,” multiplied by the Pay Factors of Table 416.3.1.2.1:1, “Pay factor for Correlated In- place Nuclear Density;” Table 416.3.1.2.1:2, “Pay factor for Ai r Voids;” Table 416.3.1.2.1:3, “Pay factor for Asphalt Content;” and Table 416.3.1.2.1:4, “Pay factor for Thickness” to calculate each lot’s composite pay factor. If the composite pa y factor for a lot is greater than one (1.0), the pay factor will be set at one (1.0). Table 416.5.1:1 Weighting Factors Characteristic “f” Factor (%) Correlated In-place Nuclear Density Mat Density 35 Air voids 35 Asphalt Content 20 Thickness 10
416.5 2 Work Included in Payment
The Department will consider as included in the payment for th e pay item(s) listed in this section and will not measure or pay separately for the followin g Work: 1. Asphalt binder, aggregate, blending sand, mineral filler, mi neral admixture, and WMA additive or process as appropriate; 2. Mixing, hauling, placement, and compaction of HMA or WMA; 3. Providing Mix Design in accor dance with Section 423.2.8’ “Mi x Design;” 4. Quality Control in accordance with Section 902, “Quality Con trol;” 5. Providing and transporting all cores for correlation; and 6. Providing storage container for samples and cores if referee testing is used. Section 417: Miscellaneous Paving Page 206
Source: New Mexico Standard Specifications for Highway and Bridge Construction, 2019 Edition. Pages 0–0 of 974.