CTR076770_Exhibit_14_Technical_Provisions__Division_III_.pdf

ADOT APMS Program Technical Provisions (Division III)

APMS - 2024 i

Technical Provisions Division III

Table of Contents

ITEM – 101 MOBILIZATION

ITEM – 102 HERBICIDE

ITEM – 104 REMOVAL OF BITUMINOUS PAVEMENT

ITEM – 105 TEMPORARY CONSTRUCTION SIGNAGE, BARRICADING AND TRAFFIC CONTROL

ITEM – 107 CRACK SEALING AND REPAIR

ITEM – 159 HIGH DENSITY STRESS RELIEF INTERLAYER FOR CRACK REDUCTION

ITEM – 354 PAVEMENT SHOULDER GRADING

ITEM – 402 HOT MIX ASPHALT (HMA) PAVEMENTS

ITEM – 603 BITUMINOUS TACK COAT

ITEM – 608 EMULSIFIED ASPHALT SEAL COAT

ITEM - 608H EMULSIFIED ASPHALT FINE-AGGREGATE SURFACE TREATMENT

ITEM – 620 RUNWAY, TAXIWAY AND APRON PAINTING

ITEM - 605 JOINT SEALANT FOR CONCRETE PAVEMENTS

APMS - 2024 ii

THIS PAGE WAS INTENTIONALLY LEFT BLANK

APMS - 2024 1

ITEM – 101 MOBILIZATION

101.1 DESCRIPTION

The work under this section shall consist of preparatory work and operations, including but not limited to, the movement of personnel, equipment, supplies and incidentals to the project site; the establishment of all offices, buildings and other facilities necessary for work on the project, and for all other work and operations that must be performed and costs incurred prior to beginning work on the various items on the project sites. The work shall also include any and all costs associated with accomplishing the specified Air Operations Area Closure Schedules and any and all work associated with the specified Airport Safety Plans.

101.2 SUBMITTALS: (NOT REQUIRED)

101.3 METHOD OF MEASUREMENT

Mobilization/Demobilization will be measured for payment by the lump sum as a single complete unit of work.

101.4 BASIS OF PAYMENT

Payment for Mobilization/Demobilization, measured as provided above, will be made at the contract lump sum price, which shall be full compensation for supplying and furnishing all materials, facilities and services and performing all work involved as specified herein. The price shall not exceed 5% of the total bid.

The total sum of all payments shall not exceed the original contract amount bid for mobilization, regardless of the fact the Contractor may have, for any reason, shut down his work on the project or moved his equipment away from the project and back again.

Payment will be made under:

Item -101.1 Mobilization/Demobilization (not to exceed 5% of total bid)—per lump sum

END OF ITEM 101

APMS - 2024 2

APMS - 2024 3

ITEM – 102 HERBICIDE

102.1 GENERAL

This item consists of applying post-emergent and pre-emergent herbicide to pavement cracks prior to crack filling in accordance with the specifications and the details shown on the Plans.

102.2 MATERIALS

The post-emergent herbicide shall be Round-Up Pro with a surfactant or an approved equal.

The pre-emergent herbicide shall be Trilin or an approved equal. The use of these products is intended to establish a level of performance only and the use of other commercial products applied at the rates recommended by the manufacturer, which can be demonstrated to achieve or exceed the results of the products above, will be permitted.

If Camelthorn is present, the contractor shall provide an additional herbicide that meets all of the requirements as prescribed USDA, Field Guide for Managing Camelthorn in the Southwest. Herbicides commonly available for foliar application to camelthorn include picloram, aminocyclopyrachlor, dicamba, imazapyr, metsulfuron, and clopyralid. These herbicides may be used as single formulations or in tank mixes with 2,4-D. Active ingredients may also be combined as a product for foliar spot spraying such as Viewpoint.

102.3 SUBMITTALS

The contractor shall submit Herbicide Data and Material Safety Data Sheets prior to the start of construction.

102.4 CONSTRUCTION METHODS

Application of herbicide shall be performed with spraying equipment required by trade standards in accordance with product manufacturer's specification. The herbicide shall be dissolved in water and applied as a solution in accordance with the Manufacturer’s recommendations. The concentration of the solution and the application rate shall be in accordance with the Manufacturer’s specifications.

The application shall be accomplished with equipment capable of providing a uniform rate and shall be equipped with a mechanical mixer or a hydraulic by-pass system that will provide agitation.

The Contractor shall apply post-emergent herbicide in the cracks with existing vegetation 10-14 days prior to the crack filling operation. The Contractor shall then remove the dead weeds by routing and blowing out the cracks.

Herbicide solution shall be applied by a Contractor that is licensed to do this work. License and record of mixing and spraying herbicide will be provided to the Resident Engineer.

Herbicide application is to take place only within cracks that have produced vegetation and/or cracks with a width greater than 1 inch.

APMS - 2024 4

102.5 METHOD OF MEASUREMENT

Herbicide Application will be measured by the linear foot for pavement cracks treated as specified.

102.6 BASIS OF PAYMENT

Payment will be made at the contract unit price per linear foot for herbicide. This payment will be full compensation for furnishing all materials and for all preparation, hauling and placing of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.

Payment will be made under:

Item – 102.1 Herbicide Application -- per linear foot

END OF ITEM 102

APMS - 2024 5

ITEM – 104 REMOVAL OF BITUMINOUS PAVEMENT

104.1 DESCRIPTION

This item shall consist of saw cutting and the milling of bituminous pavement depth or full depth and the disposal and clean-up of all pavement materials transported to an off-site location by the Contractor. Milling shall remove variable depths of AC pavement to provide an overlay over the cold milled area. The surface of pavement after milling shall be uniformly rough grooved or ridged.

The grade shall not deviate from a 12- foot straight edge by more the 3/8 inch measured parallel or perpendicular to the runway centerline. Straight edge shall be provided by contractor.

104.2 SUBMITTALS: (NOT REQUIRED)

104.3 MATERIALS/EQUIPMENT

All other materials used in conjunction with this work shall be furnished by the Contractor and will be conducted incidental to these P-104 items.

The machine used for milling shall be specially designed and built for milling AC pavement without the addition of heat. The cutting drum shall be equipped with carbide-tipped cutting teeth placed in a variable lacing pattern to produce the desired finish.

The machine shall be capable of being operated at speeds from 0 to 40 feet per minute; it shall be self-propelled and have the capability of spraying water at the cutting drum to minimize dust. The machine shall be capable of removing the material next to the edge of pavement shall be designed so that the operator can at all times observe the milling operation without leaving the controls. The machine shall be adjustable as to slope and depth and shall deep cut in one pass a maximum of 2-1/2± inches without producing fumes or smoke.

104.4 CONSTRUCTION METHODS

The removal of existing structures and utilities required to permit orderly progress of work shall be accomplished by the Contractor, unless otherwise shown on the plans.

All materials and debris which are to be discarded shall be disposed of by the Contractor to an off-site location (landfill) and in accordance with Local, State, and Federal Rules, Regulations, and Laws.

After removal of structures, utilities or asphalt pavement, the remaining surface shall be brought back to grade and be compacted or rolled to non-movement.

104.5 PAVEMENT MILLING

All asphaltic concrete pavement and/or bituminous pavement shall be removed by milling in accordance with these specifications and in conformity with the lines, grades, and typical sections as shown on the plans or as designated by the Resident Engineer. All milled pavement shall not exceed a maximum gradation of two and one half (2½) inches particle diameter.

APMS - 2024 6

The equipment for removing the pavement shall be a commercially designated and manufactured machine capable of performing the work in a manner satisfactory to the Resident Engineer. The machine(s) shall be power-operated and self-propelled, and shall be sufficient power, traction and stability to remove a thickness of bituminous surface to a specified depth, and provide a uniform profile and cross slope.

The machine shall have an automatic system for controlling grade elevation and cross slope. The machine shall be equipped with a means to effectively control dust generated by the milling operation.

The surface resulting from the milling operation shall be in accordance with the plan grades, and shall be characterized by uniform, continuous longitudinal striations or other uniform patterns and shall not be gouged or torn.

104.6 PAVEMENT SAW CUTTING

Existing asphalt and PCCP pavement to be removed shall be saw cut by a device capable of making a neat, straight, smooth and vertical cut without damaging adjacent pavement that is not to be removed. The Resident Engineer’s decision as to the acceptability of the cutting device and manner of operation will be final. Pavement saw cutting shall be required at match lines to existing pavement that is to remain.

104.7 PAVEMENT REMOVAL

Pavement to be removed shall be saw cut from adjoining pavement and removed by milling and stored for placement and compacted along the airport runway and taxiways.

The Contractor shall use care when removing existing pavement adjacent to pavement that is proposed to remain, such that lower-paving courses will not "slough" or be disturbed. If lower paving courses, such as aggregate base courses, select base courses or native materials are being disturbed at the pavement match line, the Contractor will be required to repair the existing pavement(s) to the satisfaction of the Resident Engineer and at no additional cost to the owner.

104.8 PAVEMENT MATCHING

Existing asphalt pavements that are to be matched shall be trimmed to a neat true line, with straight vertical edges free from irregularities using a saw specifically designed for this purpose.

a. Matching Asphalt Pavement - The existing asphalt pavement trimmed shall be cut full depth and be painted with a coating of asphalt cement or emulsified asphalt immediately prior to constructing the new bituminous base or surface course. No extra payment will be provided for these items and all costs incurred in performing this work shall be incidental to those items for which direct payment is made.

APMS - 2024 7

104.9 ADJOINING PAVEMENTS DESIGNATED TO REMAIN

The matching edge of all existing pavements designated to remain shall be saw cut in a straight and true line. The saw cut edge shall be protected from damage until the finished surface has been completed. Edges which are damaged in the opinion of the Resident Engineer, shall be re-sawn the entire length of the matching joint prior to placing the finished surface. Objects, surfaces and items including the underground utilities designated to remain shall be carefully avoided and left undisturbed. Any damage to these items shall be the responsibility of the Contractor, and shall be corrected to the satisfaction of the Resident Engineer and at no additional cost to the owner.

104.10 REMOVAL AND DISPOSAL OF MATERIAL

During the milling operation, the Contractor shall sweep the pavement with mechanical equipment and remove all loosened material from the project site. The removal crew shall follow within 50 feet of the milling machine unless otherwise directed by the Resident Engineer.

The contractor shall take all necessary measures to avoid dispersion of dust. All milled material shall be considered the property of the Contractor and shall be removed from the site (unless otherwise specifically shown on the plans).

104.11 METHOD OF MEASUREMENT

Measurement for Mill Asphalt Concrete Pavement (varied depth) shall be the number of square yards completed in conformance with these specifications. Measurement for the various depths or thicknesses as shown on the plans shall not be made for the miscellaneous bituminous pavement removed by milling. Measurement shall be calculated to the nearest square yard.

104.12 BASIS OF PAYMENT

Payment for Measurement for Mill Asphalt Concrete Pavement (varied depth) shall be made at the unit price per square yard. This unit price shall be full compensation for furnishing all labor, all milling equipment, materials, tools and incidentals necessary to complete the work, including hauling and disposal at an off-site approved location. The placement of millings on runway and taxiways shoulders will not be measured or paid for directly, but may be used by the contractor to meet grade requirements if allowed and approved by the airport. Millings used for shoulder grading shall have a minus 3” maximum size and must meet compaction requirements of Item 354.

Payment will be made under:

Item 104.1 Mill Asphalt Concrete Pavement (Varied Depth) – per square yard

END OF ITEM P-104

APMS - 2024 8

APMS - 2024 9

ITEM – 105 TEMPORARY CONSTRUCTION SIGNAGE, BARRICADING AND

TRAFFIC CONTROL

105.1 DESCRIPTION

This item shall include all temporary signage, barricading, Flagmen, communication devices, security guards, and traffic control required during the full term of the project. The Contractor shall be responsible for preparation of a Traffic Control Plan for approval by the Re s ide n t Engineer and Sponsor. The plan shall be approved prior to the start of any work. Information and directional signage shall be required for each phase of work. This item shall also include all costs associated with implementing the project’s Airport Construction Safety Plan including maintaining aircraft and vehicular traffic. The contractor shall be prepared to attend any badging requirements by the Airport owner. Training of personnel for badging is incidental to this work item.

105.2 SUBMITTALS

The contractor shall submit a traffic control plan (phasing if required) with staging and storage location along with a low-profile barricade data sheet at or before the pre-construction meeting.

105.3 MEASUREMENT

The quantity of temporary construction signage barricading, Flagmen, communication devices, security guards, and traffic control to be paid for shall be one complete item in place performed in accordance with the plans and specifications and accepted by the Owner.

105.4 BASIS OF PAYMENT

Payment shall be made at the contract lump sum for temporary construction signage barricading, Flagmen, communication devices, security guards, and traffic control as described above. This price shall be full compensation for furnishing all materials and for all labor, equipment, tools and incidentals necessary to complete the item. Badge training shall be included in this item.

Payment will be made under:

Item -105.1 Temporary Construction Signage, Barricading and Traffic Control -- per lump sum

END OF ITEM 105

APMS - 2024 10

APMS - 2024 11

ITEM – 107 CRACK SEALING AND REPAIR

107.1 DESCRIPTION

The work consists of repairing existing pavement cracks by one of the following crack repair or crack seal methods: Type 1 Crack Repair (Cracks>2”), Type 2 Crack Seal (Cracks 1” to 2”), Type 3 Crack Seal (Cracks ¼” to 1”), Type 4 Crack Repair (Cracks>2”). Prior to beginning any repair work; all cracks shall be marked in the field by the Contractor; classified by Type, and approved by the Resident Engineer.

Type 1 - For cracks greater than 2 inches in width, the asphalt pavement along the crack shall be milled, followed by a Type 2 crack repair to top of milled surface, followed by a high density stress relief interlayer as specified in Item-159, followed by asphalt concrete replacement. The work shall be accomplished in accordance with the requirements of these specifications and the project plans.

Type 2 - For cracks 1” to 2” in width, after applying herbicide (when applicable), the crack shall be cleaned and filled with a fine aggregate (sand) to 5/8” below the existing pavement surface, then sealed with sealant material approved by the Resident Engineer for Type 3 repairs. The work shall be accomplished in accordance with the requirements of these specifications and the project plans.

Type 3 – For cracks ¼” to 1” in width, the work consists of cleaning and routing cracks up to 1 inch in width in existing asphalt concrete pavement, applying herbicide, (when included as a Bid Item) and filling cracks with an approved crack sealant material. The work shall be accomplished in accordance with the requirements of these specifications and the project plans.

Type 4 – For cracks greater than 2 inches in width, after applying herbicide (when applicable), the crack shall be cleaned and filled with a mastic asphalt material approved by the Resident Engineer for Type 4 repairs. The work shall be accomplished in accordance with the requirements of these specifications and the project plans.

107.2 MATERIAL

Tack Coat: Tack Coat shall be Asphalt Cement Grade PG-70-10 or as approved by the Resident Engineer.

Asphalt Concrete: Asphalt Concrete for Type 1 repairs shall conform to the Bituminous Material section in the Special Provisions. The mix design shall be approved by the Resident Engineer prior to incorporation into any of the work.

Fine Aggregate (Sand): Fine aggregate (sand) shall be in conformance with MAG Specification Section 701.3.

Crack Sealant: Crack sealing materials shall be CRAFCO ROADSAVER 221 or 201; Maxwell ElastoFlex 650; or another hot-applied asphalt based, pre-packaged sealant conforming to ASTM D6690 Type I and II requirements or otherwise considered an approved equal by the Resident Engineer.

APMS - 2024 12

Each lot of sealant delivered to the job site shall be accompanied by the manufacturer’s certification stating that the material meets the requirements of this specification, or meets the requirements of an alternate specification that is appropriate for joint sealant materials used in airport applications.

Mastic Asphalt: Mastic asphalt materials shall be CRAFCO Mastic One, Type I or Type II, or another hot-applied mastic asphalt based, pre-packaged sealant conforming to ASTM D8260 requirements or otherwise considered an approved equal by the Resident Engineer.

Each lot of mastic asphalt delivered to the job site shall be accompanied by the manufacturer’s certification stating that the material meets the requirements of this specification, or meets the requirements of an alternate specification that is appropriate for crack sealant materials used in airport applications.

High Density Stress Relief Interlayer materials shall be as specified per Item-159.

Herbicide: Apply systematic herbicide per manufacturer’s directions to cracks in airfield pavement. See Item P-102.

Equipment: Routers shall be spindle type or other approved machines that are capable of following a random pavement crack. The machine used for the application of the asphalt-rubber sealant material shall be an indirect heating, pressure distributor.

107.3 SUBMITTALS

The contractor shall provide a submittal for each of the individual materials intended for use in each of the crack repair methods covered, or otherwise referenced, in this Item 107 specification.

Each individual material must be approved by the Resident Engineer prior to being used on the project.

107.4 CONSTRUCTION METHODS

The following construction sequence shall be followed:

Type 1 Crack Repair:

Removals: Asphalt Concrete shall be removed by milling per the requirement of Item – 104 Removal of Bituminous Pavement and according to the details shown on the plans at locations shown on plans or designated by the Resident Engineer.

Remaining lower portion of crack shall then be repaired in accordance with the Type 2 detail requirements. Cracks smaller than 1” in width will not be sealed. A herbicide shall be applied to the entire bottom milled surface.

High Density Stress Relief Interlayer shall be installed according to the requirements of Item-

159. If the existing pavement section is 3” or less, the asphalt pavement shall be removed completely and no stress relief interlayer will be installed after full depth removal.

APMS - 2024 13

Tack Coat: Asphalt concrete surfaces that will be in contact with asphalt concrete patching material shall receive a tack coat. Tack coat shall be protected from traffic or contamination until asphalt concrete has been placed.

Asphalt concrete shall be placed by hand or machine methods at a temperature not less than 250 degrees F. The material shall be compacted to achieve the maximum density. The compaction effort will remain the same throughout the asphalt placement. Contractor shall obtain concurrence from the Resident Engineer for the compaction prior to full production asphalt paving.

Type 2, Type 3, and Type 4 Crack Seals:

All cracks 1/4-inch to 1-inch shall be routed unless shown otherwise on the plans and cleaned with compressed air. All cracks larger than 1-inch shall be cleaned with compressed air.

Routing and Cleaning of Cracks: All cracks, which have an average clear opening between 1/4-inch and 1-inch, shall be routed to a 1/2-inch depth (3/4-inch maximum) with a router to neat vertical face as detailed on the plans. The router shall be centered as nearly as practicable over the crack. The router shall have a bit that is wide enough to cover the size of the crack being routed. Two or three passes may be necessary to route wide cracks with dirt compacted within the crack. Immediately prior to applying the sealant, all cracks shall be thoroughly cleaned of all loose particles, dust, and other deleterious substances by means of high velocity, compressed air.

Apply Herbicide when Item P-102 as required on the plans.

Crack Sealing: Where crack repairs involve crack sealant, after appropriate preparation has been completed, cracks shall be filled to at least the thickness shown in the details, while keeping the top of the sealant within 1/8 inch below the finished pavement surface. Cracks shall not be overfilled or over-banded and blotter material may be required. The Contractor will apply blotter material of a type acceptable to and at the direction of the Resident Engineer.

The crack sealant shall not be placed during wet weather or under other conditions, which will adversely affect the operations. The sealant shall not be placed in cracks, which are wet. The pavement temperature shall be above 50°F at the time of installation of the poured sealant material. If weather conditions are such as to affect adversely the operations, the Resident Engineer will determine whether or not the operations should cease.

107.5 MEASUREMENT

Crack repair shall be measured by the linear foot.

APMS - 2024 14

107.6 BASIS OF PAYMENT

The accepted quantity of crack sealing, and herbicide application complete in place, measured as provided above will be paid at the contract price per linear foot. This price shall be full compensation for all preparation, mixing, and placing of asphalt, fine aggregate (sand) and crack sealing materials, and for all labor, equipment, tools, and incidentals necessary to complete this item, including cleaning and sterilization of cracks.

Payment will be made under:

Item 107.1 Crack Repair, Type 1 (Cracks >2") – per linear foot Item 107.2 Crack Seal, Type 2 (Cracks 1" to 2") – per linear foot Item 107.3 Crack Seal, Type 3 (Cracks 1/4" to 1") – per linear foot Item 107.4 Crack Seal, Type 4 (Cracks >2”) – per linear foot

END OF ITEM 107

APMS - 2024 15

APMS - 2024 16

ITEM – 159 HIGH DENSITY STRESS RELIEF INTERLAYER FOR CRACK REDUCTION

159.1 DESCRIPTION

This item covers the requirements for furnishing materials and installing reinforced high density stress relief interlayer in accordance with details specified herein and details shown on the plans.

The contractor shall include all supplementary tools and equipment necessary or required for a complete, satisfactory and approved installation.

159.2 MATERIALS

Material shall be PAVEPREP as manufactured by the PavePrep Corporation, 105 May Drive, Harrison, Ohio 45030 (513) 367-6540/(800) 544-7737, or an approved equal.

To be considered “or equal” to PAVEPREP, the material submitted must have been successfully used as a heavy-duty reflective crack retardant for a period of not less than five years. A documented record from a minimum of six references substantiating product field performance over a wide geographic area and a variety of substrate conditions must be presented at the time of material submission for consideration.

The material shall be a flexible high density asphalt mastic sandwiched between two layers of polymeric fabric and shall meet or exceed the following properties:

APMS - 2024 17

Asphaltic Tack. The asphaltic tack to be applied to the pavement surface shall meet the following requirements or as approved by the Resident Engineer:

Material Grade Specification Asphalt Cement PG 70-10 or as approved by the Resident Engineer

AASHTO M 320

Application of Tack: The tack coat shall be applied at the rate of approximately 0.10 gal./Sq. Yd.

over existing surfaces and approximately 0.20 gal/Sq. Yd. over milled surfaces as approved by the R e s i d e n t Engineer. A typical fog coat is all that is necessary in warm weather conditions. In colder temperature conditions, a heavier spray may be needed to ensure a good bond. In no case should the tack exceed 0.25 Gal./Sq. Yd. This could cause a slippage of the mat when the heat of the hot mix re-liquefies the binding agent. Whether tack is being applied by mechanical means or from a pour pot, the edges of the must be well bonded to the old pavement. Minimum temperature of the tack shall be 290 deg. F.

The width of the asphalt tack application shall be the width of the proposed paving lane width plus 6 inches and shall be applied no further in advance of material placement than can be accomplished without losing adhesion abilities of the tack. Application of the tack material in advance of material placement shall be adjusted for weather conditions.

Sand: Although not required, small amounts of blotter sand may be used to blot excess asphalt if necessary to facilitate movement of traffic or construction equipment over the material prior to the overlay. Hot mix can be broadcast out on material ahead of paver if material is sticking to tires, trucks, or paving equipment.

159.3 SUBMITTALS

The Contractor shall submit a high density stress relief interlayer data sheet, tack coat, asphalt concrete mix design and sand (if required) prior to the start of construction.

159.4 EQUIPMENT

Asphalt Distributor: A distributor or motorized tar kettle, both equipped with a hand held wand, represent the ideal situation for applying the tack. Where not practical or unavailable, a pour pot may be used to secure the material to pavement, using a ribbon effect.

Material Handling Equipment: No special equipment is needed for handling the rolls of material.

A steel bar can be inserted through the core and suspended in any manner from the back of a truck for easy take-off or simply rolled along the crack manually

159.5 CONSTRUCTION PROCEDURE

Surface Preparation: The surface upon which the stress relief material will be placed must be free of dirt, water and vegetation. The stress relief material shall be applied when the existing surface temperature is a minimum of 50°F and rising. The existing surface must be clean and dry prior to installation of the stress relief material.

APMS - 2024 18

The use of solvents (i.e. kerosene, gasoline, diesel fuel and such) or other agents such as those used to clean paving equipment and tools is strictly prohibited. In the event that such solvents or agents come into contact with the stress relief material, the contaminated material shall be immediately removed from the pavement and the jobsite and discarded.

Material Placement: The material shall be placed into the tack prior to the time the asphalt has cooled and lost its tackiness. The stress relief shall be cut (when necessary) with a razor knife from the woven polyester side (top). The woven polyester side of the material must be placed up (exposed to traffic) with the non-woven polyester side rolled into the tack.

The stress relief material must be placed such that at least 5” of PavePrep extends beyond the edges of the crack, joint or distressed area.

The material shall be laid smooth and with no uplifted edges. It is critical that the edges of the stress relief material be securely bonded to the pavement surface. The stress relief material shall be placed and rolled immediately with a hand type roller weighting 100 pounds minimum after the asphalt cement tack is applied to the existing surface. It must then be rolled again with a rubber tire pneumatic roller or similar equipment. The second rolling effort must follow the hand roller by no more than three (3) minutes.

The stress relief material should be placed at least 24 hours in advance of paving operations.

If application must immediately preceded the paving operation, a rubberized asphalt cement (such as PCF-100), may be required as a tack coat to bond the PavePrep stress relief material to the existing surface.

Where transverse and longitudinal joints meet, PavePrep shall be butted.

Removal and replacement of material that is damaged after placement is the responsibility of the contractor.

159.6 METHOD OF MEASUREMENT

The unit of measurement for High Density Stress Relief Interlayer shall be in linear feet.

159.7 BASIS OF PAYMENT

Payment shall be made at the contract unit price per linear foot of the material in place. This price shall be full compensation for furnishing all materials including bituminous tack, and for all preparation and application of these materials, and for all labor, equipment, tools, and incidentals necessary to complete the item.

Payment will be made under:

Item - 159.1 High Density Stress Relief Interlayer (18” Wide) - per linear foot

END OF ITEM 159

APMS - 2024 19

APMS - 2024 20

ITEM – 354 PAVEMENT SHOULDER GRADING

354.1 DESCRIPTION

The work consists of re-grading of the shoulders adjacent to the surface treatment areas to ensure there is positive drainage away from the treated areas and no ruts depressions or surface irregularities. Material for the re-grading shall come from the shoulder areas, asphalt millings or supplemental untreated base as depicted in the plans.

This item shall include any clearing and grubbing, as necessary. The work shall be accomplished in accordance with the requirements of these specifications.

354.2 MATERIALS

Materials for shoulder grading may be suitable native soils, asphalt millings generated from the work, or supplemental untreated base in accordance with ADOT or MAG specifications or other standard acceptable to the Resident Engineer.

354.3 CONSTRUCTION METHODS

Areas to receive shoulder grading shall be as depicted on the plans. The area shall be cleared of all vegetation prior to placement of suitable materials. The entire area to receive grading shall be scarified and moisture conditioned to bond with the placed material. The material will be graded to a true and smooth surface and compacted to a uniform density of not less than 95 percent of the maximum density when tested in accordance with ASTM D-698. Edges of shoulder grading abutting the treated pavement areas shall be within one inch of the finish grade of the pavement.

A pre-emergent herbicide shall be applied across the surface of the compacted and finished grade. No separate measurement or payment will be made for the herbicide application, the work shall be considered incidental to the shoulder grading.

354.4 MEASUREMENT

Shoulder grading shall be measured for payment by the square yard within the limits shown on the plans. Herbicide application when included as a pay item shall be measured for payment by the square yard within the limits shown on the plans.

354.5 PAYMENT

Preparation and construction of shoulder grading and herbicide application will be by the square yard. Bid prices shall be full compensation for all materials, labor, equipment, tools and incidentals necessary to complete this item.

Payment will be made under:

Item 354.1 Shoulder Grading – per square yard

END OF ITEM P 354

APMS - 2024 21

APMS - 2024 22

ITEM – 402 HOT MIX ASPHALT (HMA) PAVEMENTS

402.1 DESCRIPTION

This item shall consist of a gap-graded surface course and leveling course composed of mineral aggregate and asphalt cement binder (asphalt binder) mixed in a central mixing plant and placed on a prepared course in accordance with these specifications and shall conform to the lines, grades, thicknesses, and typical cross-sections shown on the plans. Each course shall be constructed to the depth, typical section, and elevation required by the plans and shall be rolled, finished, and approved before the placement of the next course.

402.2 MATERIALS

Aggregate. Aggregates shall consist of crushed stone, crushed gravel crushed slag, screenings, natural sand and mineral filler, as required. The aggregates should be free of ferrous sulfides, such as pyrite, that would cause “rust” staining that can bleed through pavement markings. The portion retained on the No. 4 (4.75 mm) sieve is coarse aggregate.

The portion passing the No. 4 (4.75 mm) sieve and retained on the No. 200 (0.075 mm) sieve is fine aggregate, and the portion passing the No. 200 (0.075 mm) sieve is mineral filler.

a. Coarse aggregate. Coarse aggregate shall consist of sound, tough, durable particles, free from films of matter that would prevent thorough coating and bonding with the bituminous material and free from organic matter and other deleterious substances. The percentage of wear shall not be greater than 50 percent when tested in accordance with ASTM C131. The sodium sulfate soundness loss shall not exceed 12%, or the magnesium sulfate soundness loss shall not exceed 18%, after five cycles, when tested in accordance with ASTM C88. Clay Lumps and friable particles shall not exceed 1.0% when tested in accordance with ASTM C142.

Aggregate shall contain at least 75 percent by weight of individual pieces having two or more fractured faces and 85 percent by weight having at least one fractured face. The area of each face shall be equal to at least 75% of the smallest mid-sectional area of the piece. When two fractured faces are contiguous, the angle between the planes of fractures shall be at least 30 degrees to count as two fractured faces. Fractured faces shall be achieved by crushing.

The aggregate shall not contain more than a total of 8%, by weight, of flat particles, elongated particles, and flat and elongated particles, when tested in accordance with ASTM D4791 with a value of 5:1.

b. Fine aggregate. Fine aggregate shall consist of clean, sound, tough, durable, angular shaped particles produced by crushing stone, slag, or gravel that meets the requirements for wear and soundness specified for coarse aggregate. The aggregate particles shall be free from coatings of clay, silt, or other objectionable matter.

The fine aggregate, including any blended material for the fine aggregate, shall have a plasticity index of not more than six (6) and a liquid limit of not more than 25 when tested in accordance with ASTM D4318.

The soundness loss shall not exceed 10% when sodium sulfate is used or 15% when magnesium sulfate is used, after five cycles, when tested per ASTM C88.

Clay lumps and friable particles shall not exceed 1.0 percent, by weight, when tested in accordance with ASTM C142.

APMS - 2024 23

Natural (non-manufactured) sand may be used to obtain the gradation of the aggregate blend or to improve the workability of the mix. The amount of sand to be added will be adjusted to produce mixtures conforming to requirements of this specification. The fine aggregate shall not contain more than 15% natural sand by weight of total aggregates. If used, the natural sand shall meet the requirements of ASTM D1073 and shall have a plasticity index of not more than six (6) and a liquid limit of not more than 25 when tested in accordance with ASTM D4318.

The aggregate shall have sand equivalent values of 55 or greater when tested in accordance with ASTM D2419.

c. Sampling. ASTM D75 shall be used in sampling coarse and fine aggregate, and ASTM C183 shall be used in sampling mineral filler.

Mineral filler. If filler, in addition to that naturally present in the aggregate, is necessary, it shall meet the requirements of ASTM D242.

Asphalt Rubber Binder. Bituminous material shall be PG graded asphalt cement binder conforming to ASTM D6373 blended with crumb rubber as specified under the Bituminous Material section of the Special Provisions. The rubber shall have a specific gravity of 1.15 ± 0.05 and shall be free of wire or other contaminating materials, except it shall contain no more than

0.5 percent fabric. A certificate of compliance from the manufacturer shall be included with the mix design submittal.

The supplier’s certified test report with test data indicating grade certification for the asphalt binder shall be provided to the Resident Engineer for each load at the time of delivery to the mix plant. A certified test report with test data indicating grade certification for the asphalt binder shall also be provided to the Resident Engineer for any modification of the asphalt binder after delivery to the mix plant and before use in the HMA.

Preliminary material acceptance. Prior to delivery of materials to the job site, the Contractor shall submit certified test reports to the Resident Engineer for the following materials:

a. Coarse aggregate:

(1) Percent of wear

(2) Soundness

(3) Clay lumps and friable particles

(4) Percent fractured faces

(5) Flat and elongated particles

b. Fine aggregate:

(1) Liquid limit and Plasticity index (if requested)

(2) Soundness

(3) Clay lumps and friable particles

(4) Percent natural sand

(5) Sand equivalent

c. Mineral filler.

APMS - 2024 24

d. Asphalt binder. Test results for asphalt binder shall include temperature/viscosity charts for mixing and compaction temperatures.

The certifications shall show the appropriate ASTM tests for each material, the test results, and a statement that the material meets the specification requirement.

The Resident Engineer may request samples for testing, prior to and during production, to verify the quality of the materials and to ensure conformance with the applicable specifications.

402-2.5 Anti-stripping agent. Any anti-stripping agent or additive if required shall be heat stable, shall not change the asphalt cement viscosity beyond specifications, shall contain no harmful ingredients, shall be added in recommended proportion by approved method, and shall be a material approved by the Department of Transportation of the State in which the project is located.

402.3 COMPOSITION

Composition of mixture. The HMA plant mix shall be composed of a mixture of well-graded aggregate, filler and anti-strip agent if required, and asphalt binder. The several aggregate fractions shall be sized, handled in separate size groups, and combined in such proportions that the resulting mixture meets the grading requirements of the job mix formula (JMF).

402-3.2 Job mix formula. No hot-mixed asphalt (HMA) for payment shall be produced until a JMF has been approved in writing by the Resident Engineer. The asphalt mix design and JMF shall be prepared by an accredited laboratory that meets the requirements of paragraph 402-

3.4. The HMA shall be designed using the Marshall Mix Design method and the procedures contained in Asphalt Institute MS-2 Mix Design Manual, 7th Edition. Mix properties and proportions of the final JMF shall conform to the requirements of Table1, Table 2, and Table 3.

If material variability exceeds the standard deviations indicated, the JMF and subsequent production targets shall be based on a stability greater than shown in Table 1 and the flow shall be targeted close to the mid-range of the criteria in order to meet the acceptance requirements .

Tensile Strength Ratio (TSR) of the composite mixture, as determined by ASTM D4867, shall not be less than 75 when tested at a saturation of 70-80% or an anti-stripping agent shall be added to the HMA, as necessary, to produce a TSR of not less than 75 when tested at a saturation of 70-80%. If an anti-strip agent is required, it shall be provided by the Contractor at no additional cost to the Owner.

The JMF shall be submitted in writing by the Contractor at least 10 days prior to the start of paving operations. The JMF shall be developed within the same construction season using aggregates currently being produced.

The submitted JMF shall be stamped or sealed by the Responsible Professional Engineer of the laboratory and shall include the following items as a minimum:

a. Percent passing each sieve size for total combined gradation, individual gradation of all aggregate stockpiles and percent by weight of each stockpile used in the JMF.

b. Percent of asphalt cement.

c. Asphalt performance, grade, and type of modifier if used.

d. Number of blows per side of molded specimen.

e. Laboratory mixing temperature.

APMS - 2024 25

f. Laboratory compaction temperature.

g. Temperature-viscosity relationship of the PG asphalt cement binder showing acceptable range of mixing and compaction temperatures and for modified binders include supplier recommended mixing and compaction temperatures.

h. Plot of the combined gradation on the 0.45 power gradation curve.

i. Graphical plots of stability, flow, air voids, voids in the mineral aggregate, and unit weight versus asphalt content.

j. Specific gravity and absorption of each aggregate.

k. Percent natural sand.

l. Percent fractured faces.

m. Percent by weight of flat particles, elongated particles, and flat and elongated particles

(and criteria).

n. Tensile Strength Ratio (TSR).

o. Anti-strip agent (if required).

p. Date the JMF was developed. Mix designs that are not dated or which are from a prior construction season shall not be accepted.

The Contractor shall submit to the Resident Engineer the results of verification testing of three

(3) asphalt samples prepared at the optimum asphalt content. The average of the results of this testing shall indicate conformance with the JMF requirements specified in Tables 1 and 3.

When the project requires asphalt mixtures of differing aggregate gradations, a separate JMF and the results of JMF verification testing shall be submitted for each mix.

The JMF for each mixture shall be in effect until a modification is approved in writing by the Resident Engineer. Should a change in sources of materials be made, a new JMF must be submitted within 15 days and approved by the Resident Engineer in writing before the new material is used. After the initial production JMF has been approved by the Resident Engineer and a new or modified JMF is required for whatever reason, the subsequent cost of the Resident Engineer’s approval of the new or modified JMF will be borne by the Contractor. There will be no time extension given or considerations for extra costs associated with the stoppage of production paving or restart of production paving due to the time needed for the Resident Engineer to approve the initial, new or modified JMF. The mix design method used shall be in accordance with the Marshall Mix procedure, 75 blows, as described in Arizona Test Method 832 “Marshall Mix Design Method for Asphaltic Concrete (Asphalt Rubber) [AR-AC]”.

APMS - 2024 26

Table 1. Marshall Design Criteria

Test Property Value

Number of blows 75

Stability, pounds minimum 800

Flow, 0.01 inch, minimum 16

Air voids (percent) 4.5-5.5

Tensile Strength Ratio, minimum 65%

Voids in Mineral Aggregate, % minimum See Table 2

Table 2. Minimum Percent Voids In Mineral Aggregate (VMA)

Maximum Aggregate Size Minimum VMA

3/4" 19

The mineral aggregate shall be of such size that the percentage composition by weight, as determined by laboratory sieves, will conform to the gradation or gradations specified in Table 3 when tested in accordance with ASTM C136 and ASTM C117.

The gradations in Table 3 represent the limits that shall determine the suitability of aggregate for use from the sources of supply, be well graded from coarse to fine and shall not vary from the low limit on one sieve to the high limit on the adjacent sieve, or vice versa.

Table 3. Aggregate Gradation and Binder Content- HMA Pavements

Sieve Size Percentage by Weight Passing Sieve

1 inch (25 mm) 100 3/4 inch (19 mm) 100 1/2 inch (12 mm) 95-100 3/8 inch (9 mm) 78-92 No. 4 (4.75 mm) 28-45 No. 8 (2.36 mm) 15-25 No. 30 (0.60 mm) 5-15 No. 200 (0.075 mm) 3-7

Binder Content:

Asphalt Rubber Binder 7.8% to 8.8%

The aggregate gradations shown are based on aggregates of uniform specific gravity. The percentages passing the various sieves shall be corrected when aggregates of varying specific

APMS - 2024 27

gravities are used, as indicated in the Asphalt Institute MS-2 Mix Design Manual, 7th Edition.

Reclaimed asphalt concrete (RAP). RAP shall not be used.

Job mix formula (JMF) laboratory. The Contractor’s laboratory used to develop the JMF shall be accredited in accordance with ASTM D3666. The laboratory accreditation must be current and listed on the accrediting authority’s website. All test methods required for developing the JMF must be listed on the lab accreditation. A copy of the laboratory’s current accreditation and accredited test methods shall be submitted to the Resident Engineer prior to start of construction.

Test section. At the Resident Engineer’s discretion and prior to full production, the Contractor shall prepare and place a quantity of HMA according to the JMF. The amount of HMA shall be sufficient to construct a test section 300 feet long and 20 feet wide, placed in two lanes, with a longitudinal cold joint, and shall be of the same depth specified for the construction of the course which it represents. A cold joint for this test section is an exposed construction joint at least four (4) hours old or whose mat has cooled to less than 160°F (71ºC). The cold joint must be cut back using the same procedure that will be used during production in accordance with 402-4.12. The underlying grade or pavement structure upon which the test section is to be constructed shall be the same as the remainder of the course represented by the test section.

The equipment used in construction of the test section shall be the same type and weight to be used on the remainder of the course represented by the test section.

The test section shall be evaluated for acceptance as a single lot in accordance with the HMA acceptance criteria. If the initial test section should prove to be unacceptable, the necessary adjustments to the JMF, plant operation, placing procedures, and/or rolling procedures shall be made. A second test section shall then be placed. If the second test section also does not meet specification requirements, both sections shall be removed at the Contractor’s expense.

Additional test sections, as required, shall be constructed, and evaluated for conformance to the specifications. Any additional sections that are not acceptable shall be removed at the Contractor’s expense. Full production shall not begin until an acceptable test section has been constructed and accepted in writing by the Resident Engineer. Once an acceptable test section has been placed, payment for the initial test section and the section that meets specification requirements shall be made in accordance with paragraph 402-8.

Job mix control testing shall be performed by the Contractor at the start of plant production and in conjunction with the calibration of the plant for the JMF. If the aggregates produced by the plant do not satisfy the gradation requirements or produce a mix that meets the JMF, it will be necessary to reevaluate and redesign the mix using plant-produced aggregates. Specimens shall be prepared and the optimum asphalt content determined in the same manner as for the original JMF tests.

Contractor will not be allowed to place the test section until the Contractor Quality Control Program, showing conformance with the requirements of paragraph 402-6.1, has been approved, in writing, by the Resident Engineer.

APMS - 2024 28

402.4 CONSTRUCTION METHODS

Weather limitations. The HMA shall not be placed upon a wet surface or when the surface temperature of the underlying course is less than specified in Table 4. The temperature requirements may be waived by the Resident Engineer, if requested; however, all other requirements including compaction shall be met. Rubberized HMA should be placed only when ambient air temperature is at or above 85oF and when rain or inclement weather are not imminent.

Table 4. Surface Temperature Limitations of Underlying Course

Mat Thickness Base Temperature (Minimum) Degrees F Degrees C

1.0 inches or greater 45 4

HMA plant. Plants used for the preparation of HMA shall conform to the requirements of American Association of State Highway and Transportation Officials (AASHTO) M156 with the following changes:

a. Requirements for all plants include:

(1) Truck scales. The HMA shall be weighed on approved scales furnished by the

Contractor, or on certified public scales at the Contractor’s expense. Scales shall be inspected and sealed as often as the Resident Engineer deems necessary to assure their accuracy.

Scales shall conform to the requirements of the General Provisions, subsection 90-01.

In lieu of scales, and as approved by the Resident Engineer, HMA weights may be determined by the use of an electronic weighing system equipped with an automatic printer that weighs the total HMA production and as often thereafter as requested by the Resident Engineer.

(2) Testing facilities. The Contractor shall ensure laboratory facilities are provided at the plant for the use of the Resident Engineer, or the Resident Engineer’s authorized representative. The lab shall have sufficient space and equipment so that both testing representatives (Resident Engineer’s and Contractor’s) can operate efficiently.