48-Sec 32 12 23 - RESTORATION OF PAVED SURFACES.pdf

RESTORATION OF PAVED SURFACES

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SECTION 32 12 23

PART 1 - GENERAL

1.01 SECTION DESCRIPTION

A. The Work of This Section Includes:

1. Temporary Paving

2. Permanent Paving

3. Asphalt Overlay

4. Shoulder Restoration

5. Driveways

6. Concrete Curb and Gutter Repairs

7. Stormwater Inlets and Piping

8. Street Signage

1.02 RELATED SECTIONS

A. Related Work specified elsewhere:

1. Section 01 55 26: Traffic Regulation

2. Section 32 12 00: Asphalt Concrete Paving

1.03 QUALITY ASSURANCE

A. Referenced Standards:

1. Pennsylvania Department of Transportation:

a. Publication 408 Specifications

b. Publication 27 - Specification for Bituminous Mixtures (Bulletin 27)

c. Publication 37 - Specification for Bituminous Materials (Bulletin 25)

d. Publication 213 – Temporary Traffic Control Guidelines

1.04 SUBMITTALS

A. Certificates:

1. Submit certification from asphalt and aggregate suppliers attesting that materials conform to the State Specifications in accordance with Section 01 33 00.

2. Submit a PennDOT approved Job Mix Formula for each asphalt concrete mix required.

3. Submit a PennDOT approved Mix Design for each concrete class and use required.

1.05 JOB CONDITIONS

A. Control of Traffic:

1. Take measures to control traffic during repaving operations. Do not allow traffic on repaved areas until authorized by the Resident Project Representative.

2. Employ traffic control measures in accordance with the requirements of Section 01 55 26 including pertinent permits by PennDOT and local municipal agencies having jurisdiction.

B. Restore existing paving outside the limits of the Work, that is damaged by Contractor's operations, to its original condition at the expense of Contractor.

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PART 2 - PRODUCTS

2.01 ASPHALT PAVING MATERIALS AND AGGREGATES

A. WMA Wearing Course: Per Section 413 of PennDOT Publication 408 - 1.5" depth 9.5mm, PG 64S-22, 3.0 – 10 million ESALs, SLR-H, containing ≤ 15% recycled material and virgin asphalt cement. (Wearing Course with more than 15% light colored aggregate will not be accepted.)

B. WMA Scratch/Leveling Course: Per Section 413.2 of PennDOT Publication 408 - 9.5mm, PG 64S- 22, 3.0 – 10 million ESALs, SLR-H, containing ≤ 15% recycled material and virgin asphalt cement

C. Non-Tracking Tack Coat: Per Section 460.2 of PennDOT Publication 408

D. WMA Binder Course: Per Section 413 of PennDOT Publication 408 – 6.5” depth 19mm PG 64S-22,

3.0 – 10 million ESALs, containing ≤ 15% recycled material and virgin asphalt cement

E. WMA Base Course: Per Section 313 of PennDOT Publication 408 – 5.0” depth 25mm PG 64S-22,

3.0 – 10 million ESALs, containing ≤ 15% recycled material and virgin asphalt cement

PART 3 - EXECUTION

3.01 TEMPORARY PAVING

A. Surface preparation, tack coat application, base course construction, scratch/leveling course construction, wearing course construction, and asphalt concrete curb construction shall be per PennDOT Publication 408 Sections 313.3, 413.3, 460.3, and 636.3.

B. Provide temporary paving immediately upon completion of trench backfilling. Unpaved trenches shall not remain unpaved longer than ten (10) working days after backfilling.

C. Complete trench backfill with coarse aggregate in accordance with the Drawings and Publication 408 requirements.

D. Trim existing paving with minimum one (1) foot cutbacks to remove damaged areas. Cut straight joint lines and right angle offsets.

E. Place temporary paving material consisting of asphalt concrete base course to the required depth shown on the Drawings for the entire width of the trench. Place with a maximum lift thickness of three

(3) inches and compact each lift individually using a trench roller (minimum 5 ton).

F. Continuously maintain temporary paving to the satisfaction of the Resident Project Representative and the State and local municipal road departments having jurisdiction. Temporary paving on State roads must remain in place for a minimum of ninety (90) days.

3.02 PERMANENT PAVING

A. Surface preparation, tack coat application, base course construction, scratch/leveling course construction, wearing course construction, and asphalt concrete curb construction shall be per PennDOT Publication 408 Sections 313.3, 413.3, 460.3, and 636.3.

B. Place asphalt concrete base course on surface of compacted subbase course to compacted thickness (10 ton roller where possible; minimum 5 ton roller in trenches) as shown on Drawings. In-place, compacted density shall be per PennDOT Publication 408, Section 313.3.

C. Apply tack coat, per PennDOT Publication 408, Section 460.3 and Section 32 12 00, on completed binder course before placing wearing course. Place binder and wearing courses to compacted thicknesses (10 ton roller except minimum 5 ton roller for binder course in trenches) as shown on the Drawings. In-place, compacted density shall be per PennDOT Publication 408, Section 413.3.

D. Place wearing course overlay to compacted thickness (10 ton roller) as and where shown on the

E. Compact pavement by rolling to achieve even and smooth finish, without roller marks. Hand compact in areas inaccessible to rolling equipment.

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F. Where proposed asphalt paving adjoins existing asphalt paving, seal the joint with Asphalt PG 64S- 22 Sealant in accordance with Publication 408 Specifications (latest edition).

G. Replace pavement markings in their former location which were covered or destroyed.

H. Maintain permanent paving to the satisfaction of the Resident Project Representative and the local municipal and State road departments having jurisdiction throughout the Contract maintenance period.

3.03 ASPHALT OVERLAY

A. Surface preparation, tack coat application, base course construction, scratch/leveling course construction, wearing course construction, and asphalt concrete curb construction shall be per PennDOT Publication 408 Sections 313.3, 413.3, 460.3, and 636.3.

B. Where indicated on the Drawings, or directed by the Resident Project Representative, place an asphalt overlay.

C. Construct in accordance with Publication 408 Specifications.

D. Apply tack coat, per PennDOT Publication 408, Section 460.3 and Section 32 12 00, on completed binder course before placing wearing course. Place binder and wearing courses to compacted thicknesses (10 ton roller except minimum 5 ton roller for binder course in trenches) as shown on the

E. Place wearing course overlay to compacted thickness (10 ton roller) as and where shown on the

F. Compact pavement by rolling to achieve even and smooth finish, without roller marks. Hand compact in areas inaccessible to rolling equipment.

G. Where proposed asphalt paving adjoins existing asphalt paving, seal the joint with Asphalt PG 64S- 22 Sealant in accordance with Publication 408 Specifications (latest edition).

H. Replace pavement markings in their former location which were covered or destroyed.

I. Maintain permanent paving to the satisfaction of the Resident Project Representative and the local municipal and State road departments having jurisdiction throughout the Contract maintenance period.

3.04 SHOULDER RESTORATION

A. Restore shoulders in accordance with the Drawings.

3.05 DRIVEWAYS

A. Trim concrete and asphalt driveway surfaces to remove damaged areas. Saw cut straight joint lines parallel to the centerline of the trench. Cut offsets at right angles to the trench centerline.

B. Restore existing portland cement concrete driveways with a 6 inch layer of concrete reinforced with 6 x 6 10/10 wire mesh.

C. Restore existing blacktop driveways in kind or with minimum 1-1/2 inch layer wearing course over 6" layer of 2A aggregate.

D. Restore earth driveways with a 6 inch layer of 2A stone backfill.

E. Restore stone or gravel driveways in kind.

F. Restore brick driveways with like bricks placed on a 4 inch thick wet sand bed. Place bricks in like pattern and spacing.

G. Restore cobblestone driveways with cobblestone placed on a 4 inch thick wet sand bed. Place cobblestones in like pattern and spacing.

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3.06 CONCRETE CURB AND GUTTER REPAIRS

A. Replace curbs and gutters damaged by construction per OWNER standards and specifications.

B. Reconstruct curbs and gutters to the first expansion joint on either side of the damaged portion. Install expansion joint material.

3.07 STORMWATER INLETS AND PIPING

A. Repair or replace storm water inlets and piping damaged by construction to match existing inlets.

B. The Resident Project Representative will determine whether the frame and grate assembly of each affected storm water inlet is suitable for reuse once it has been removed by Contractor.

C. Construct or repair storm water inlets and piping in accordance with relevant section of Publication 408 Specifications.

3.08 STREET SIGNAGE

A. Reinstall any signage removed to allow for construction activities at the original location.

END OF SECTION