County-Specs-02510-Asphalt-Paving.pdf

ASPHALT PAVING 02510-1

GREENVILLE COUNTY

PUBLIC WORKS

STANDARD SPECIFICATIONS

SECTION 02510

ASPHALT PAVING

ASPHALT PAVING 02510-2

ASPHALT PAVING

SECTION 02510

RELATED DOCUMENTS: Attention is directed to related sections of the Specifications, as they pertain to the guidelines, materials, and methods described in this section. Also, the General Provisions and Special Provisions of the Contract shall apply to all Sections of the Work.

1.0 SCOPE

a. General: Work consists of providing all materials, labor and equipment required for complete installation of asphaltic pavement including subgrade preparation, base and surface courses, extruded concrete curb or curb and gutter with backfill, all as indicated on the drawings and/or specified herein.

b. Replacement of Existing Pavement: The Contractor shall furnish all labor, materials, equipment, services and duties to replace and restore all existing pavements in streets, highways, paved shoulders, driveways or parking areas that are removed, destroyed or damaged by construction. Pavement replacement includes base course replacement as shown on the standard details.

c. Replacement of Existing Curbs, Gutters, and Sidewalks: The contractor shall furnish all labor, materials, equipment, services and duties to replace and restore all existing curbs, gutters, and sidewalks that are removed, damaged or destroyed by construction.

d. Standards for Replacement: In addition to other requirements of the Contract Documents, all removal and replacement of pavements, sidewalks, curbs and gutters in state, city and county roads shall comply with all requirements and provisions of the South Carolina Highway Department or the Local City or County Engineer's Office, as applicable. All such work shall be subject to inspection and approval by the South Carolina Highway Department or the Local City or County Engineer's Office.

e. Traffic Control Requirements: The Contractor shall be responsible for conducting all work in street, roads, and highways in accordance with any and all Regulatory Authorities' current requirements. As a minimum, for any work in State Highways, the Contractor shall meet the requirements of Traffic Controls for Street and Highway Construction and Maintenance Operations, Part V of the South Carolina Manual on Uniform Traffic control Devices for Streets and Highways - 1982, latest revision.

2.0 APPLICABLE PUBLICATIONS

The latest editions of the following publications apply to the specifications to the extent indicated by references thereto:

a. South Carolina State Highway Department Standard Specification for Highway Construction

(SCSHDSSHC).

3.0 SUBGRADE PREPARATION

a. Preparation: Prior to constructing the base course, the subgrade shall conform to the grades indicated on the drawings and any holes, ruts or depressions shall be filled with approved material and compacted to requirements of SCSHDSSHC.

b. Frame, Cover, & Box Adjustment: The adjustment of water valve boxes and manhole frames and covers to grade to conform to the finished street grade and cross section shall be as follows:

ASPHALT PAVING 02510-3

1. Water Lines: Utility Contractor shall be responsible for setting all valve boxes to the proper height (finished grade of pavement) one time after base course has been placed. Valve boxes shall be set on a firm brick foundation a maximum of 24 hours prior to placement of finished surface course of the pavement. Any resetting of boxes, thereafter, shall be performed by the Paving Contractor at the time he applies the finished surface course. Any damage to water lines, valves, blow-offs or fire hydrants after the final setting of valve boxes by the Utility Contractor, shall be repaired or replaced by the Utility Contractor. It shall be the responsibility of the Utility Contractor to determine what caused the damage and recover any repair costs from the responsible party. Repair costs shall not be paid by the Owner.

2. Sanitary Sewer Lines: Manholes and/or appurtenance may be set to finished grade any time after base course has been placed and shall remain the responsibility of the Utility Contractor. should a manhole and/or appurtenance be damaged after being set, it shall be the Utility Contractor's responsibility to repair or replace the manhole and/or appurtenances to finished grade. It shall be the responsibility of the Utility Contractor to determine what caused the damage to the manhole and/or appurtenance and recover any repair costs from the responsible party. Repair costs shall not be paid by the Owner.

c. Certification: The subgrade shall be certified as required, by the Engineer prior to constructing base course.

4.0 BASE COURSE

a. Stabilized Aggregate Base Course (with Primer): The base course thickness shall be as indicated on the drawings of stabilized aggregate base course Type 2, with MC-30 prime, when indicated, conforming to the requirements of Section 306, of the SCSHDSSHC except the entire paragraphs 306.15, 306.16, and 306.17 shall not apply.

b. Hot Laid Asphaltic Aggregate Base Course: The base course compacted thickness shall be as indicated on the drawings conforming to the requirement in Section 310 of the SCSHDSSHC except the entire paragraph 310.07 shall not apply. Minimum Marshall stability shall be 1,000 pounds.

c. Tack Coat: A tack coat shall be applied prior to the surface course when the asphalt aggregate base course is used. The application of the tack coat shall be as specified in subsection

401.22 of the SCSHDSSHC.

d. Certification: Regardless of the type base course used, the Engineer shall certify, as required, before and after all prime and sealer applications.

5.0 SURFACE COURSE

a. Thickness: The surface course shall be 1-1/2" (with stabilized aggregate base course) or 1"

(with asphaltic aggregate base course) compacted thickness of hot laid asphaltic concrete surface course, Type 2, conforming to the requirements of Section 403 of the SCSHDSSHC, except paragraph 403.07 shall not apply.

b. Weather Conditions: The surface course shall be applied in strict accordance with weather restrictions as specified in Section 401, paragraph 401.14 of the same applicable specifications.

c. Joints: where new pavement abuts existing flexible pavement, cut back the existing surface course along uniform lines approximately 12 inches from the edge. Make a vertical cut and

ASPHALT PAVING 02510-4

extend cut full depth of the surface course. Prior to placing the surface course, paint the exposed edge of cold joints with a thin layer of bituminous tack coat.

d. Certification: During pavement application, the Engineer shall conduct necessary field observations and complete a "Construction Inspection Certification" and submit a copy to the Greenville County Engineering Department.

6.0 CONCRETE CURBS

a. Concrete Curbs: Concrete curbs shall be constructed as shown on the drawings. The material and installation shall be in accordance with applicable paragraphs of Section 720 of the SCSHDSSHC, and Section 02520.

b. Backfilling Curbs: It shall be the Contractor's responsibility to make sure that stockpiled topsoil is sufficient for backfilling curbs or to reflect any additional backfilling cost in the bid.

c. Throat & Lid Adjustment: The Contractor shall form the concrete curb to the throat of the catch basin and adjust lids and throats of catch basins to provide a 6 inch drainage opening.

7.0 CLEAN UP

a. General Requirements: In addition to other provisions of the Contract Documents, materials, debris, and surplus excavation shall be removed from rights-of-way and work areas. The rights-of-way and work areas shall be left neat, clean and serviceable.

8.0 PROJECT CLOSE OUT

a. General Requirements: The Contractor is responsible for maintaining all sanitary sewer frames and covers and water main valve boxes. Any frames, covers, or valve boxes damaged, displaced, misplaced, lost or broken during the paving operation will be replaced at the Contractor's expense.

END OF SECTION