32 12 16 - Asphalt Paving.pdf

32 12 16 – ASPHALT PAVING

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SECTION 32 12 16 – ASPHALT PAVING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Asphalt materials.

2. Aggregate materials.

3. Aggregate subbase.

4. Asphalt paving base course, binder course, and wearing course.

B. Related Requirement:

1. Section 32 11 23 – Aggregate Base Courses

2. Section 32 17 23 – Pavement Markings:

1.2 REFERENCE STANDARDS

A. The "PennDOT Sections" noted herein refer to sections contained in the current Commonwealth of Pennsylvania Department of Transportation Specifications Publication 408, as supplemented or revised. The references pertain only to materials, construction, equipment, methods and labor. The payment provisions do not apply to work to be performed under this Contract. All work shall be completed in accordance with the applicable PennDOT standards, supplements, and interims unless otherwise noted.

B. Commonwealth of Pennsylvania Department of Transportation Specifications Publication 408, latest edition.

1. PennDOT Section 212 – Geotextiles.

2. PennDOT Section 309 – Superpave Asphalt Mixture Design, Standard Construction, Base Course.

3. PennDOT Section 350 – Subbase.

4. PennDOT Section 409 – Superpave Mixture Design, Standard and RPS Construction of Plant-Mixed Courses.

5. PennDOT Section 460 – Bituminous Tack Coat.

6. PennDOT Section 470 – Bituminous Seal Coat.

7. PennDOT Section 491 – Milling of Bituminous Pavement Surface.

8. PennDOT Section 492 – Profile Milling of Bituminous Pavement Surfaces.

9. PennDOT Section 735 – Geotextiles.

10. PennDOT Section 960 – Hot Thermoplastic Pavement Markings.

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11. PennDOT Section 962 – Waterborne Pavement Markings.

C. Commonwealth of Pennsylvania Department of Transportation Standards for Roadway Construction Publication 72M, latest edition.

D. Commonwealth of Pennsylvania Department of Transportation Standards for Roadway Construction Publication 28M, Overlay Transitions and Paving Notches, latest edition.

E. Commonwealth of Pennsylvania Department of Transportation Bulletin 15.

F. Commonwealth of Pennsylvania Department of Transportation Bulletin 25.

G. Commonwealth of Pennsylvania Department of Transportation Bulletin 27.

H. Commonwealth of Pennsylvania, Pennsylvania Code, Title 67, Transportation, Department of Transportation, Chapter 459, Occupancy of Highways by Utilities, as supplemented or revised.

I. Commonwealth of Pennsylvania, Pennsylvania Code, Title 67, Transportation, Department of Transportation, Chapter 213, Temporary Traffic Control Guidelines (PennDOT Chapter 213).

J. Publication 19 – Field and Laboratory Test Methods, latest edition.

1.3 SUBMITTALS

A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.

B. Product Data:

1. Submit product information for asphalt and aggregate materials.

2.

3. Submit mix design with laboratory test results supporting design.

C. Manufacturer's Certificate: Certify products meet or exceed requirements of PennDOT Specification.

D. Material Slips: Furnish certification of the amount of materials utilized from the producer in accordance with PennDOT specifications.

1.4 QUALITY ASSURANCE

A. Use materials conforming to PennDOT Publication 408, latest edition and supplementary bulletins thereto.

B. The quality of the work shall be maintained by using the products of a qualified hot mix asphalt producer and qualified plant operating workmen.

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C. The hot mix asphalt producer shall be a bulk producer regularly engaged in production of hot-mix, hot-laid superpave mixture design hot mix asphalt conforming to the standards referenced herein.

D. Requirements of Regulatory Agencies:

1. Removal, protection and replacement of paving on State Highways must be performed in accordance with the requirements of the Commonwealth of Pennsylvania, Pennsylvania Code, Title 67, Transportation, Department of Transportation, Chapter 459, Occupancy of Highways by Utilities, latest edition.

2. Removal, protection and replacement of paving on roadways other than state highways must be performed in accordance with the requirements of the municipality in which the work is performed. The Contractor is responsible to meet the requirements of all permits and approvals from the municipality.

3. Employ traffic control measures in accordance with PennDOT, Title 67, Chapter 213.

E. Perform Work in accordance with PennDOT and West Donegal Township standard.

1.5 QUALIFICATIONS

A. Installer: Provide at least one person thoroughly trained and experienced in the skills required who readily understands the design and is completely familiar with the application of superpave mixture design hot mix asphalt paving work. Said person shall be present at all times during progress of hot mix asphalt paving work and shall direct the performance of said work.

B. For actual finishing of hot mix paving surfaces and operation of the equipment, use only personnel thoroughly trained and experienced in the skills required.

C. Manufacturer Qualifications: A paving-mix manufacturer registered with and approved by PennDOT.

1.6 AMBIENT CONDITIONS

A. Section 01 50 00 – Temporary Facilities and Controls: Ambient conditions control facilities for product storage and installation.

B. Protection:

1. Protect paved surfaces outside of the pavement removal limits as indicated on

Contract Drawings. Repair pavement outside removal limits damaged by construction operations to PennDOT or Municipal specifications at no additional expense to Owner.

2. Use all means necessary to protect and maintain pavement materials before, during, and after installation. Protect installed work and materials of all other contractors.

C. Do not install aggregate courses when ambient temperature is below or is expected to fall below freezing, or surface is wet or frozen.

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D. Do not use aggregate containing frost nor place aggregate courses on frozen subgrade.

E. Terminate placement of bituminous mixtures or courses between October 31, and do not resume placement prior to April 15. Placement of bituminous mixtures or courses between the dates referenced above requires prior approval from PennDOT.

F. Do not place bituminous paving mixtures or courses when surfaces are wet or when the temperature of either air or the surface on which the mixture or course is to be placed is 40 Deg F or lower. When work is halted because of weather conditions, limited quantities en route to the project may be placed, if permitted by the Engineer.

G. Place asphalt mixture when temperature is not more than 15 degrees F less than initial mixing temperature.

PART 2 - PRODUCTS

2.1 ASPHALT PAVING

A. Performance / Design Criteria:

1. Paving: Superpave design based on 0.3 million equivalent single axle loads (ESAL) for 20-year paving design life.

B. Asphalt Materials:

1. Asphalt Cement: PG 64S-22 conforming to PennDOT Bulletin 25.

2. Asphalt Rubber Sealing Compound: Conforming to PennDOT Bulletin 25.

3. Superpave Wearing Course Asphalt Mixture Design: In accordance with PennDOT

Publication 408, Section 309.2.

4. Superpave Base Course Asphalt Mixture Design: In accordance with PennDOT

Publication 408, Section 409.2.

5. Superpave Binder Course Asphalt Mixture Design: In accordance with PennDOT

Publication 408, Section 409.

6. Bituminous Tack Coat: In accordance with PennDOT Publication 408, Section

460.2.

C. Aggregate Subbase: Type C or better, No. 2A, Section 703.2, placement per PennDOT Publication 408 Section 350.

D. Aggregate Subbase Repair: AASHTO No. 1, in accordance with PennDOT Publication 408, Section 703.2.

2.2 MIXES

A. Use dry material to avoid foaming. Mix uniformly.

B. Asphalt Paving Mixtures:

1. Base Course: Superpave Mix Design Base Course, PG64S-22, < 0.3 Million ESALS, 25mm mix, 6" Minimum Depth (or match existing depth if greater).

2. Wearing Course: Superpave Mix Design Wearing Course, PG64S-22, 0.3 Million to

3.0 Million ESALS, 12.5mm mix, 1.5" Depth, SRL-H

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2.3 ACCESSORIES

A. Geotextile: Class 4, Type B, conforming to PennDOT Section 212.3.

B. Traffic Paint - Township Roads: Conforming to PennDOT Sections 960 and 962.

2.4 SOURCE QUALITY CONTROL

A. Section 01 40 00 – Quality Requirements: Testing, inspection and analysis requirements.

B. Submit proposed mix design of each class of mix for review prior to beginning of Work.

C. Test samples in accordance with conform to requirements of PennDOT Specifications.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation examination.

B. Verify utilities indicated under paving are installed with excavations and trenches backfilled and compacted to surfacing subgrade as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

C. Verify compacted subgrade subbase is dry and ready to support paving and imposed loads.

1. Proof roll subbase with heavy pneumatic-tired equipment in minimum two perpendicular passes to identify soft spots and areas of excess yielding in accordance with PennDOT Pub. 408, Section 210.3. Do not proof-roll wet or saturated subgrades.

2. Remove soft subbase and replace with compacted fill as specified in Section 31 23 23.33 – Flowable Fill.

D. Verify gradients and elevations of base are correct.

E. Verify manhole frames and water main frames are installed in correct position and elevation.

F. Proceed with paving only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Prepare subbase in accordance with the Elizabethtown Area Water Authority standards.

B. Refer to the Restoration Schedule contained at the end of Section 32 12 16 – Asphalt Paving for schedule of materials and thicknesses.

3.3 DEMOLITION

A. Municipal Pavement Removal:

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1. Saw cut and notch existing pavement using a mechanical saw to neat lines equidistant from the centerline of the trench.

2. Remove pavement to width equal to maximum excavated trench width plus not less than one foot on each side of the trench. If roadway is removed or disturbed for a greater width without written authorization of the Engineer, the Owner will require the Contractor to replace such pavement without compensation.

3. Milling: Perform milling operations where indicated on the Contract Drawings and as necessary to provide a smooth transition between new overlay and the existing roadways and structures. Milling shall be performed in accordance with PennDOT Publication 408, Sections 491 and 492. Mill pavement as required to provide the minimum pavement overlay thickness indicated on the Contract Drawings.

B. Clean existing paving to remove foreign material, excess joint sealant and crack filler from paving surface.

C. Repair surface defects in existing paving to provide uniform surface to receive new paving.

3.4 INSTALLATION

A. General: Restore streets, shoulders, driveways, parking areas and other areas according to details shown on the Contract Drawings and the Restoration Schedule.

B. Temporary Surfacing:

1. Temporary pavement shall be installed as directed by the Engineer in the event where permanent pavement cannot be placed due to the weather limitations set forth herein for the placing of bituminous material for the permanent base and surface courses. The temporary surface shall be as specified in the Restoration Schedule seen at the end of Section 32 12 16 – Asphalt Paving.

2. Contractor shall be responsible for the removal and disposal of the temporary surfacing to the grade required for the placement of the final sub-base, base, and surface at the specified depths.

C. The Contractor shall be responsible for the maintenance and protection of all surfacing, as well as manholes, frame and covers, valve boxes, and other facilities or structures located within the areas of the roadway reconstruction until such time as that the permanent pavement or surface can be placed. Permanent surfacing must be placed no later than ten (10) days following the placement of base course paving. In the event that environmental conditions do not allow for placement of permanent surfacing within the ten days specified, permanent surfacing must be placed as soon as conditions allow.

D. Prior to placement of final surfacing, the Contractor, Owner, and Engineer shall inspect all areas to be restored. The Contractor shall be responsible for any replacement of material, regrading, or addition of material deemed necessary by the Engineer in any areas found to be unacceptable for receipt of final surfacing.

E. The Contractor shall be responsible for any necessary adjustments to grade for manholes, frame and covers, and other facilities or structures prior to final surfacing.

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F. Bituminous Materials:

1. Superpave Wearing Course Asphalt Mixture Design: In accordance with PennDOT

Publication 408, Section 309.3.

2. Superpave Base Course Asphalt Mixture Design: In accordance with PennDOT

Publication 408, Section 409.3

3. Bituminous Tack Coat: In accordance with PennDOT Publication 408, Section

460.3

4. Aggregate Subbase: Construct and place in accordance with the requirements of

PennDOT Section 350.3.

a. Install on prepared subgrade as specified by Section 31 23

33 – Trenching and Backfilling for Utilities and in PennDOT Section 210.

b. Install subbase to underside of base course as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

5. Asphalt Rubber Sealing Compound: Apply according to PennDOT Bulletin 25. Use to seal joints between existing and new pavements, new pavement and curbing, and new pavement and manhole frame and covers, valve boxes, etc.

3.5 TOLERANCES

A. Section 01 40 00 – Quality Requirements: Tolerances.

3.6 FIELD QUALITY CONTROL

A. Section 01 40 00 – Quality Requirements: Requirements for inspecting, testing.

3.7 CLEAN-UP

A. During construction, surfaces of all areas including, but not limited to, roads, streets, and driveways shall be maintained on a daily basis to produce a safe, desirable, and convenient condition.

1. Streets shall be swept and flushed after backfilling, and recleaned as dust, mud, stones and debris caused by the work, or related to the work again accumulates.

2. Failure of the Contractor to perform this work shall be cause for the Engineer to order the work to be done by others, and backcharge all costs to the Contractor.

B. Repair or Correction of Unsatisfactory Conditions: All unsatisfactory conditions resulting from the work shall be corrected.

C. Dust Control: Provide effective dust control by sprinkling water, by the use of calcium chloride or by any other methods approved by Engineer. Use dust control measures where, when and in a manner required by Engineer.

3.8 PROTECTION

A. Section 01 73 00 – Execution Requirements: Requirements for protecting finished Work.

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3.9 MAINTENANCE

A. Continuously maintain temporary paving without additional compensation until it is replaced with permanent paving.

B. Maintain without additional compensation, such work of this Section done under this Contract for a period of twenty-four (24) months after the date of Owner’s approval of the final Completion Certificate issued by Engineer, including the repair or removal and replacement of such work which has failed or has been damaged or wherever surface depressions have been developed. Materials and methods used to repair or replace such work shall conform to the applicable requirements of this Section.

C. Should Contractor fail to perform required maintenance or repairs within three days after written notice from Owner or Engineer, the Owner may perform such maintenance or repairs and deduct the cost thereof from any monies due or to become due Contractor.

3.10 RESTORATION SCHEDULE

A. See attachment below.

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SURFACING

Backfill and Compaction per Section 31 23 33

Temporary Permanent

Surfac-ing ID. No.

Description Type Compaction % (Note 1) Base Surface Sub-Base (Note

4) Base (Note 4) Surface (Note 4)

1.00 Vegetation

1.01 Vegetative Surface

Restoration Suitable 90 (Note 2) (Note 2) N/A (Note 3) (Note 3)

2.00 Municipal

2.01 Paved Road (Local) Aggregate 100 2A (Refer to Plan Set

Details)

(Refer to Plan Set Details)

(Refer to Plan Set Details)

(Refer to Plan Set Details)

2.02 Paved Road (Penn-

DOT) Aggregate 100 2A (Refer to Plan Set

Details (Refer to Plan Set Details)

(Refer to Plan Set Details)

(Refer to Plan Set Details)

2.03 Sidewalk Aggregate 100 2A 2A N/A N/A Concrete

Note 1 Percent (minimum) of maximum dry density as determined by Standard Proctor Test.

Note 2 Comply with requirements of Erosion & Sedimentation Section.

Note 3 Comply with requirements of Section 32 91 13, Section 32 91 19, Section 32 92 19, and Section 32 92 23.

Note 4 Minimum depths required or match existing depth if greater.

Note 5 Restore to original condition.

END OF SECTION 32 12 16