AJW2C15C EVV ASR Road Pavement Sealing and Replacement 2021 Specs Revised.pdf

SPECIFICATION AJW2C15C-19005721

REPLACE ACCESS ROAD PAVEMENT & REFURBISH PARKING LOT

EVV ASR

5/11/2021

Site Inspection - It is recommended that the Contractor perform a field inspection prior to bid submission in order to inform himself of the specific working conditions applicable at the site and to ascertain the correct types/amounts of work to be performed. If the bidder chooses not to visit the site, he will nevertheless be charged with knowledge of conditions that a reasonable inspection would have disclosed.

Work Hours – Work shall be performed during a scheduled work week of 40 hours. The Contractor shall furnish a statement of the number of hours, days, and times to be worked per week along with the number of persons on site. The start and stop times shall typically be coordinated with the schedules of the FAA personnel providing escort to minimize or prevent the need for overtime work by FAA personnel. Any work outside of this shift will be considered overtime work.

Contracting Officers Representative (COR) - The Contracting Officer (CO) may assign a COR to oversee the work on the project and act as a technical point of contact. A letter dating the COR's responsibilities and authority will be issued when a COR is assigned.

Site Location/Access – The site is located inside the operations area and security fence of the EVV Regional Airport. The parking lot to be refurbished is within a locked fence/gate and access to the site will only be during normal working hours and per agreement with local FAA personnel. At the time of my visit, the gate was open allowing access to the ASR access road but it is unknown if that will always be the case, so it should be assumed that both the ASR site and access road will only be accessible with an escort.

Site coordinates - 38 02’ 39.32” N, 87 30’ 56.07” W.

Sanitary Facilities/Water - Sanitary facilities/water are not available at the site.

Protection of Existing Property - The Contractor shall take all precautions necessary to protect the existing facilities, grounds, equipment, building, towers, cabling, etc. during the contract. Any areas damaged by the Contractor, his employees, or any subcontractors shall be repaired by the Contractor at no additional cost to the Government. Repairs shall be approved by the COR and shall match the original.

The Contractor shall provide all temporary covers, barriers, markers, etc..., required to protect the existing facilities.

Electrical Power - The contractor will not be allowed to use electrical power from the facility.

Facility Operation – This is a critical National Airspace System air traffic control facility and must remain in operation during the performance of the work. The contractor shall take every precaution to avoid damaging the site cables, fencing, building, towers etc. or take any other action which could impact or stop facility operation.

1.0 SCOPE OF WORK -

Work on this contract is for work shown in the Areas 1 and 2 in the plot layout shown below and shall included but is not limited to the following:

AREA 1 - Clean out existing cracks, fill/seal with hot-applied liquid polymer, and seal entire asphalt surface per Section 2.0 below.

AREA 2 - Remove existing pavement and install new gravel subgrade and asphalt pavement per Section 3.0 below.

Plot and Access Road Layout

Area 1

Area 2

2.0 Parking Lot Refurbishment

2.1 - Sweep/clean the approx. 40’x120’ parking area of gravel/dirt and remove loose material in existing cracks by blowing out with compressed air. Apply a hot pour polymer-modified polyester fibered sealant to the cracks after preparation per the sealant manufacturers’ requirements. Following crack repair and product recommended cure time, apply a compatible polymer-modified mineral filled asphalt emulsion pavement sealer with polymers and surfactants for increased adhesion, flexibility, and durability to the entire parking lot. Submit proposed products and application instructions for approval.

3.0 Access Road/Parking Area Paving

3.1 - Utility Location: Previous to any excavation, contact Indiana 811 to have the site utilities located and marked. Coordinate with the local FAA personnel to have them locate and mark incoming utilities into the site that.

3.2 – Subbase/Pavement: Remove the existing access road pavement down to undisturbed soil at required depth. Install 6” of compacted 2-inch size rock followed by 2” of compacted dense-graded aggregate to create a strong subbase. On top of the prepared subbase install 2” (thickness after full compaction) of asphalt binder mix followed by 1.5” (thickness after compaction) of surface course.

3.3 - Subgrade Preparation: All vegetation (including root systems), rocks, debris, and topsoil should be removed from the area to be paved. To prevent future growth, the subgrade should be treated with an approved soil sterilant. The subgrade must be properly shaped to meet true lines and elevations. It must be compacted to not less than 95 percent of maximum laboratory density. The surface of the compacted subgrade must not deviate by more than 3/4 inch from the established grade. A minimum slope of about 2 percent or 1/4 inch per foot should be maintained to provide adequate drainage of surface water from the finished pavement.

3.4 - Subgrade Correction: Areas in existing pavement of alligator cracking/potholes, or in prepared subgrade that show pronounced deflection under construction traffic indicate instability in the subgrade.

For any areas identified, rework and complete additional rolling and if that does not correct the situation, the area soil must be removed, replaced with suitable material, and compacted. The use of asphalt-treated base or coarse granular material is recommended.

3.5 - Asphalt Base-Platform Construction: Asphalt Concrete Base Material (binder mix) must be placed on the prepared subgrade. A base of 4 inches or less in depth should be placed in one lift. A base of a total thickness of more than 4 inches may be placed in two or more lifts with the bottom lift being a minimum of 3 inches. The material must be spread and compacted to the required thickness and density as specified. The surface of the base must not deviate more than 1/2 inch when measured with a 10- foot straight edge.

3.6 - Surface Course Construction: Preparation for the surface course requires thorough cleaning and sometimes washing of the asphalt base to remove any tracked-on dirt and foreign particles. After cleaning, any cracked or broken areas in the base should be removed, replaced with bituminous mix, and thoroughly compacted. The hot mix asphalt surface course consists of one or more layers placed on the previously constructed Asphalt Concrete base course. The material must be spread and compacted to the required thickness. The finished surface must not deviate more than 1/4 inch when measured with a 10-foot straight edge.

3.7 - Tack Coat: Before placing the surface course, the base course should be cleaned thoroughly. Apply a tack coat of diluted emulsified asphalt may be applied for bonding.

Applicable Standards:

Pavement work shall be per the following requirements from the Kansas Department of Transportation or equivalent specification from the Indiana transportation department:

4-7 BITUMINOUS PAVING AND SURFACING

4-7.1 General. -

4-7.1.1 Scope. - This section specifies bituminous pavement for replacement and restoration of existing surfaces.

4-7.2 Applicable documents. - The current issues of the following documents, in effect on the date of invitation for bid, form a part of this specification and are applicable to the extent specified herein.

4-7.2-1 Standard Specifications for State Road and Bridge Construction – Department of Transportation, Kansas. - Except as modified herein, flexible pavement shall conform to the following Kansas Highway Department Specification Divisions and Sections:

Section 603 Plant Mix Bituminous Construction

Section 612 Bituminous Prime Coat

Section 1100 Aggregates

Section 1103 Aggregates for Bituminous Mixtures

Section 1201 Asphalt Cement and Cutback Asphalt

Section 1202 Emulsified Asphalt

4-7.2.2 American Association of State Highway and Transportation Officials (AASHTO) Standards. -

T102 Spot Test of Asphaltic Materials

T202 Standards Capillary Viscometer Test of Asphalt Cements

4-7.2.3 Federal Specifications. -

TT-P-85 Paint, Traffic and Airfield Marking, Solvent

4-7.2.4 American Society for Testing and Materials (ASTM) Publication.-

D242 Mineral Filler for Bituminous Paving Mixtures

D692 Coarse Aggregate for Bituminous Paving Mixtures

D995 Requirements for Mixing Plants for Hot-Mixed, Hot-Laid Bituminous Paving Mixtures

D1073 Fine Aggregate for Bituminous Paving Mixtures

D1188 Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Paraffin-Coated Specimens

D2172 Quantitative Extraction of Bitumen from Bituminous Paving Mixtures

D2489 Test Method of Degree of Particle Coating of Bituminous-Aggregate Mixtures

D2726 Test Method for Bulk Specific Gravity of Compacted Bituminous Mixtures Using Saturated Surface-Dry Specimens

4-7.3 Materials. -

4-7.3.1 Asphalt pavement. -

4-7.3.1.1 Pavement aggregate subbase course. - Pavement aggregate subbase coarse shall consist of materials described in Section 3.2 above and KS DOT Specification Section 2-2.3.2.

4-7.3.1.2 Asphalt prime coat. - The cutback asphalt for the prime coat shall conform to Section 1201 of the Kansas Highway Department Specification and be either MC-70 or RC-70.

4-7.3.1.3 Asphalt base course. - The asphalt base course materials shall conform to the following:

4-7.3.1.3.1 Aggregate. - The aggregate mix for the base course shall be Type BM-2B from Section 1103 of the Kansas Highway Department Specification and shall have the following gradation:

Sieve Size Percent Retained

1 inch 0

3/4 inch 0 – 5

3/8 inch 10 – 40

No. 8 42 –72

No. 30 64 – 88

No. 200 90 – 96

4-7.3.1.3.2 Asphalt cement. - The asphalt cement used in the base course mixture shall be viscosity-graded per AASHTO Designation T202 grade AC 10 and conform to the requirements of the Kansas Highway Department Specification Section 1201. The asphalt cement shall show a negative spot when subjected to the AASHTO T102 test, but shall not be a derivative of paraffin based crude or manufactured by the cracking process.

4-7.3.1.3.3 Composition of mixture. - The base course mixture shall have the following test properties:

Marshall Stability (lbs.) 1200 Minimum

Marshall Flow (0.01 in.) 10 –16

Percent of Air Voids 2 – 5

Percent of Air Voids Filled with Asphalt 68 – 73

In-Place Density (%) 95 Minimum

4-7.3.1.4 Asphalt tack coat. - The emulsified asphalt cement used for the tack coat shall be Type SS-1H or CSS-1H from Section 1202 of the Kansas Highway Department Specification. The application temperatures shall be between 75 – 130 degrees Fahrenheit.

4-7.3.1.5 Asphalt surface course. - The asphalt surface course materials shall conform to the following requirements:

4-7.3.1.5.1 Aggregates. - The aggregates for the surface course mixture shall be crushed stone, crushed gravel, and crushed slag, sharp-edged natural sand, mineral filler, or a combination of two or more of these materials. The aggregate mix shall conform to Kansas Highway Department Type BM-1 in Section 1103 and have the following gradation:

Sieve Size Percent Retained

1/2 inch 0

3/8 inch 0 – 8

No. 4 18 – 39

No. 8 35 – 53

No. 16 50 – 68

No. 30 60 – 80

No. 50 70 – 88

No. 100 80 – 92

No. 200 90 – 96

Aggregates shall also conform to the following ASTM requirements:

a) Crushed stone or crushed gravel: Conform to ASTM D692.

b) Fine aggregate: Conform to ASTM D1073.

c) Mineral filler: Conform to ASTM D242.

d) Slag, if used, shall be air-cooled blast-furnace slag and shall weigh not less that 70 pounds per cubic foot.

4-7.3.1.5.2 Asphalt cement. - The asphalt cement used in the base course mixture shall be viscosity-graded per AASHTO Designation T202 grade AC 10 and conform to the requirements of the Kansas Highway Department Specification Section 1201. The asphalt cement shall show a negative spot when subjected to the AASHTO T102 test, but shall not be a derivative of paraffin based crude or manufactured by the cracking process.

4-7.3.1.5.3 Composition of mixture. - The surface course mixture shall have the following test properties:

Marshall Stability (lbs.) 1200 Minimum

Marshall Flow (0.01 in.) 10 – 16

Percent Air Voids 2 – 5

Percent Air Voids Filled with Asphalt 78 – 83

In-Place Density (%) 97 Minimum

4-7.4 Installation. -

4-7.4.1 General requirements. - Paving and surfacing shall be installed where existing asphalt pavement is removed to replace or install new fuel oil piping and related components.

4-7.4.2 Pavement subbase course. - The pavement subbase course shall be constructed on top of a properly prepared and compacted subgrade according to the requirements in Section 2-2.6.5, Pavement subbase course.

4-7.4.3 Asphalt pavement. -

4-7.4.3.1 Asphalt prime coat. - The asphalt prime coat shall be applied in accordance with Section 612 of the Kansas Highway Department Specification and the following requirements:

4-7.4.3.1.1 Weather limitations. - Apply the prime coat only when the subbase course is dry or contains moisture not in excess of that which will permit uniform distribution and the desired penetration. Do not apply the prime coat when the atmospheric temperature is below 50 degrees F. or the wind velocity exceeds 25 miles per hour.

4-7.4.3.1.2 Preparation of surface. - The subbase shall be properly compacted and tested for compaction before applying the prime coat.

4-7.4.3.1.3 Quantities. - The bituminous material used for the prime coat shall be applied in quantities not less than 0.25 gallon, nor more than 0.50 gallons per square yard.

4-7.4.3.1.4 Application method. - Application of the asphalt prime coat shall be by means of a bituminous distributor and shall be applied such that uniform distribution is obtained at all points of the surface to be primed. Following the application of the prime coat, allow the surface to cure without being disturbed for a period of not more than 48 hours. Remove any excess asphalt not absorbed into the base after the curing period prior to continuing paving operations. Maintain the primed surface until the succeeding layer of pavement has been placed.

4-7.4.3.2 Asphalt base course. - The asphalt surface course shall consist of plant or hot-mixed asphalt concrete.

4-7.4.3.2.1 Mixing. - Mixing shall be in accordance with the best industry practices and conform to ASTM D995. Heat the asphalt at the paving plant to a temperature at which it can be applied uniformly to the aggregate. Store coarse and fine aggregate separately at the paving plaint in a manner that will prevent intermingling. Mixing time shall be the shortest time that will produce a satisfactory mixture, established based on the procedure for determining the percentage of coated particles as described in

ASTM D2489. The mixing time shall be set to achieve 90 percent of coated particles for base mixtures and shall not exceed 60 seconds.

4-7.4.3.2.2 Placing. - The asphalt base course shall be placed on top of a properly compacted subbase course coated with an asphalt prime coat. The surface shall be clean, dry and free of any loose or foreign matter at the time of placing the mixture. Do not place the base course mixture when the weather is rainy or the atmospheric temperature is below 50 degrees F., unless otherwise directed by the COR. Base course batches delivered with temperatures below 250 degrees F will be rejected. The base course shall be placed in one lift. Place the mixture with an acceptable bituminous spreader in strips having a minimum width of 10 feet and do not roll the 6-inch strip adjacent to the area on which additional material is to be laid until such additional material is placed, except when the work is to be discontinued.

After the first strip has been placed and rolled, place the second strip and succeeding strips and extend rolling to include the 6 inches of the first strip not previously rolled. Place all succeeding strips while the unrolled 6 inch section of the adjoining is hot and in a readily compactable condition.

4-7.4.3.2.3 Compaction. - Perform all compaction by the use of a three-wheel or tandem roller for breakdown rolling, a pneumatic-tired roller for intermediate rolling and a tandem roller for finish rolling.

Begin rolling the mixture as soon after placing, as the mixture will bear the roller without undue displacement. Delays in rolling freshly spread asphalt mixture will not be tolerated. Start rolling longitudinally at the extreme sides of the lanes and proceed toward the center of the pavement, overlapping on successive trips by at least one-half of the width of the rear wheel of the roller. In all places not accessible to the rollers, compact the mixture thoroughly with hot pad tampers. Hand tampers shall weigh not less that 25 pounds and shall have a tamping face of not more that 50 square inches. Skin patching of an area that has been finish rolled will not be permitted. Remove any mixture that becomes mixed with foreign material or in any way defective, replace it with fresh mixture and compact it to the density of the surrounding area. The roller shall pass over the unprotected edge of the course only when the laying of the course is to be discontinued for such length of time as to permit the mixture to become cold. Continue rolling of the base course until all roller marks are eliminated and a density has been obtained of at least 95 percent of the density of a laboratory specimen of the same mixture subjected to 50 blows of a standard Marshall on each side of specimen. Compaction shall be completed before the mix has cooled to 185 degrees F.

4-7.4.3.3 Asphalt tack coat. - The asphalt tack coat shall be applied to the asphalt base course immediately prior to spreading of the asphalt surface course.

4-7.4.3.3.1 Quantity. - Apply from 0.05 to 0.15 gallons per square yard of surface to be covered as directed by the COR. The emulsified asphalt shall be properly diluted with an equal part of water.

4-7.4.3.3.2 Application. - Apply the tack coat by means of a bituminous distributor such that a uniform distribution is obtained at all points. The tack coat shall be applied to a properly compacted asphalt base course layer, the sides of the curb and gutter and existing pavement as can be covered with the asphalt surface course mixture in the same day.

4-7.4.3.4 Asphalt surface course. -

4-7.4.3.4.1 General. - The asphalt concrete surface course shall consist of plant or hot-mix asphalt concrete.

4-7.4.3.4.2 Mixing. - Accomplish in accordance with the best industry practices and ASTM D995. Heat the asphalt at the paving plant to a temperature at which it can be applied uniformly to the aggregate.

Store coarse and fine aggregates separately at the paving plant in a manner that will prevent intermingling. Mixing time shall be the shortest time that will produce a satisfactory mixture, established based on the procedure for determining the percentage of coated particles described in ASTM D2489.

The mixing time shall be set to achieve 95 percent of coated particles for surface course mixture and shall not exceed 60 seconds.

4-7.4.3.4.3 Placing. - The asphalt surface course shall be placed on top of a properly compacted asphalt base course with an asphalt tack coat. Place the surface course mixture only when the weather is not rainy and the atmosphere temperature is above 50 degrees F., unless otherwise directed by the COR.

Surface course batches delivered with temperature below 250 degrees F. will be rejected. Place the mixture in one lift with an acceptable bituminous spreader in strips having a minimum width of 10 feet, and do not roll the 6 inch strip adjacent to the area on which additional material is to be laid until such additional material is placed, except, when the work is to be discontinued. After the first strip has been placed and rolled, place the second strip and succeeding strips and extend rolling to include the 6 inches of the first strip not previously rolled. Place all succeeding strips while the unrolled 6 inch section of the strip is hot and in a readily compactable condition.

4-7.4.3.4.4 Compaction. - Perform all compactions by the use of a three-wheel of tandem roller for breakdown rolling, a pneumatic-tired roller for intermediate rolling and a tandem roller for finish rolling.

Begin rolling the mixture as soon after placing as the mixture will bear the rolling without undue displacement. Delays in rolling freshly spread asphalt mixture will not be tolerated. Start rolling longitudinally at the extreme sides of the lanes and proceed toward the center of the pavement, overlapping on successive trips by at least one-half the width of the rear wheel of the roller. Make tests for conformity with the specified crown, grade and smoothness immediately after initial compression.

Before continuing the rolling, correct any variations by removing or adding materials. Skin patching of an area that has been finish rolled will not be permitted. Remove any mixture that becomes mixed with foreign material or in any way defective, replace it with fresh mixture and compact it to the density of the surrounding area. The roller shall pass over the unprotected edge of the course only when the laying of the course is to be discontinued for such length of time as to permit the mixture to become cold. Continue rolling until all roller marks are eliminated and density has been obtained of at least 97 percent of the density of a laboratory specimen of the same mixture subjected to 50 blows of a standard Marshall on each side of the specimen. During rolling, moisten the wheels of the rollers to prevent adhesion of the mixture to the wheels but an excess of water will not be permitted. In all places not accessible to the roller, compact the mixture thoroughly with hot hand tampers. Hand tampers shall weigh not less than 25 pounds and shall have a tamping face of no more than 50 square inches. Compaction shall be completed before the mix has cooled to 185 degrees F.

4-7.4.4 Cleaning. - After the completion of paving operations, clean all surfaces of excess or spilled asphalt materials to the satisfaction of the COR.

4-7.4.5 Protection. - After final rolling, do not permit vehicular traffic on any asphalt concrete pavement until is has cooled and hardened, and in no case sooner than 24 hours. The Contractor shall provide barricades and warning devices as required to protect the pavement and the general public. The Contractor shall also cover openings of structures in the area of paving until permanent coverings are placed.

4-7.4.6 Pavement painting. - The Contractor shall replace all traffic markings or painted stripes damaged or obliterated by new construction as directed by the COR. Painting of pavement shall in a pattern to match original stripes and markings. Apply two coats of traffic paint, applying the first coat not less than five days after the placing of bituminous pavement. Immediately before applying the paint, clean the pavement surface of all dust, dirt and other objectionable materials. Apply the paint by spray, brush or other acceptable means such that uniform distribution of the area to be covered is obtained.

Provide masking so that the paint is contained within the area to be painted. The color of the paint shall be white or yellow as required to match existing.

4-7.5 Quality assurance. -

4-7.5.1 Testing. -

4-7.5.1.1 General. - The Contractor shall employ a testing agency to perform tests and submit reports of tests.

4-7.5.1.2 Compaction. - The density of the bituminous pavement shall be tested a minimum of one test per 500 square feet. Tests shall be performed in accordance with ASTM D2950 and the test locations shall be selected by the COR. Compaction shall be 95% of the density of a laboratory specimen of the same mixture subjected to 50 blows of a standard Marshall hammer on each side of the specimen. Any location that fails a compaction test shall be re-rolled and tested again.

4-7.5.1.4 Grading - Elevations of asphalt pavement shall match existing elevations where new asphalt pavement abuts existing pavement. Any high areas shall be re-heated, scraped down smooth and re-rolled as directed by the COR.

4-7.5.1.3 Surface drainage. - Upon completion of paving work, flood newly paved areas with water to determine the existence and location of depressions or low spots from which water will not drain by gravity. If such areas are found, then fill, repair or replace the areas to obtain positive drainage. Any high areas shall be re-heated, scraped down smooth and re-rolled as directed by the COR.

4-7.5.2 Submittals. -

4-7.5.2.1 Job mix formula. - Submit a job mix formula for each mix specified, prepared within one year of submittal, prior to preparing and placing the bituminous mixture.

4-7.5.5.2 Material Certificates. - Submit material certificates, signed by the manufacturer and the contractor, certifying that each material complies with or exceeds specified requirements, if requested by the COR.

4-7.5.2.3 Plant certification. - If requested by COR, provide statement certifying that mixing plant operates according to the Standard Specifications of the Kansas Department of Transportation.