SECTION_32_01_16_Recycled_Asphalt_Paving.docx
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SECTION 32 01 16 RECYCLED ASPHALT PAVING
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SECTION 32 01 16
SECTION 32 01 16
RECYCLED ASPHALT PAVING
| PART 1 | GENERAL | |
| 1.1 | SECTION INCLUDES | |
| A. | Placing RAC in base, leveling, or surface courses. | |
| B. | Mix design requirements. | |
| 1.2 | REFERENCES | |
| A. | ASTM D 2950: Standard Test Method for Density of Bituminous Concrete In Place by Nuclear Method. | |
| B. | ASTM D 3549: Standard Test Method for Thickness or Height of Compacted Bituminous Paving Mixture Specimens. | |
| 1.3 | DEFINITIONS | |
| A. | RAP (reclaimed asphalt pavement): Product of bitumen and aggregate recovered from milling an asphalt concrete pavement. No roadbase or Subgrade materials are contained in RAP. | |
| B. | RAC (recycled asphalt concrete): Product of mixing RAP, new aggregates and asphalt cement or recycle agent or both. | |
| 1.4 | SUBMITTALS | |
| A. | Prior to commencing work of this Section, submit. | |
| 1. | Traffic control plan, Section 01 55 26. | |
| 2. | A list of equipment to be used. | |
| 3. | Type of asphalt to be used, Section 32 12 03. | |
| B. | RAC Mix Design: Determine the conditions and properties of the existing materials. Identify recycling agent and submit the following data as applicable. | |
| 1. | When the amount of RAP is 15 percent or less of the RAC, submit a design mix formula if Supplier does not have a design mix formula at the plant. The formula shall be based on current test data. | |
| 2. | When the amount of RAP added to the RAC is over 15 percent, submit a design mix formula. | |
| C. | RAC Delivery Tickets: Section 32 12 17. | |
| PART 2 | PRODUCTS | |
| 2.1 | MATERIAL | |
| A. | Recycled Asphalt: RA grade, Section 32 12 03: | |
| B. | Tack Coat: Section 32 12 14. | |
| C. | Paving Geotextile: Section 31 05 19. | |
| D. | Paving Geogrid: Section 31 05 21. | |
| 2.2 | RECLAIMED ASPHALT PAVEMENT (RAP) AGGREGATE | |
| A. | Free of detrimental quantities of deleterious materials, with a minimum sand equivalent value of 50 and graded (on a non-dried basis) as follows. |
| Sieve |
| Percent Passing by Weight |
| 1-1/2” |
| 100 |
| 1” |
| 90 |
| PART 3 | EXECUTION |
| 3.1 | CONSTRUCTION EQUIPMENT |
| A. | Laydown Machine: Provide track equipment when operating on fabrics or geogrid, otherwise type of equipment to be provided is Contractor’s choice. |
| B. | Compactors: Steel wheeled static or vibratory. Any use of a pneumatic tire roller is for intermediate compaction only. |
| 3.2 | PREPARATION |
| A. | General: |
| 1. | Coordinate utility location, Section 01 31 13. Contact utility companies and other agencies, for dangerous concentration of combustible, flammable, or explosive matter. |
| 2. | Lower Street Fixtures if Pavement recycler machine is not capable of releasing Pavement-cutting mechanism to protect fixtures. |
| 3. | Remove plant materials from cracks, edges and joints. Sweep surface clean. Blow cracks clean. |
| 4. | Stabilize portland cement concrete Subgrade slabs, if applicable. |
| 5. | Apply tack coat, Section 32 12 14. |
| 6. | Verify that surfaces are dry. |
| B. | Trees, Plants, Ground Cover: Protect trees, plants and other ground cover from damage. |
| C. | Traffic Control: |
| 1. | Control pedestrian and vehicular traffic, Section 01 55 26. |
| 2. | Protect pavement from traffic until mixture has cooled enough not to become marked. |
| 3. | Apply temporary traffic and lane marking tape or paint after layout and placement has been verified with COR. |
| D. | Milling, Section 02 41 14 |
| 3.3 | PLACING RAC |
| A. | Hot-laid RAC, Section 32 12 16. |
| B. | Cold-laid RAC, Section 32 12 17. |
| C. | Mix and blend milled aggregate, recycling asphalt, virgin asphalt and virgin aggregate per the mix design. |
| 3.4 | TOLERANCES |
| A. | Compaction, lift thickness, grade, cross slope, Section 32 12 17. |
| B. | Complete compaction of RAC within 5 minutes of placing RAC and before its temperature drops below 200 deg. F. |
END OF SECTION
RECYCLED ASPHALT PAVING Page 1
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