SECTION 411 — PAVER PLACED ELASTOMERIC SURFACE TREATMENT — PAVER PLACED ELASTOMERIC SURFACE TREATMENT
411.01 Description.
This work includes providing a paver-placed elastomeric surface treatment (PPEST). Perform all work according to the provisions of PART 400, with the following additions and amendments.
411.02 Materials.
P erformance Graded Asphalt Binder (PGAB) . Use PGAB that conforms to AASHTO M 320, M 332, R 29, and R 92 and that meets the requirements of PG 76E-34. Ensure that the elastic recovery at 10oC (AASHTO T 301) is not less than 75 percent. Do not use re-refined engine oil bottoms. The supplier of the modified asphalt binder shall certify the composition and PG grade of the modified asphalt binder. Ensure that the high temperature grade (AASHTO M320) of the neat asphalt cement does not exceed PG 58-XX. A ggregate. Use an approved coarse aggregate that is virgin crushed quarry rock from the Approved Material List. Do not use processed gravel. Ensure that there is less than 10 percent flat or elongated particles (ASTM D4791). Ensure that the aggregate wear, from resistance to abrasion, is a maximum of 30 percent as determined by the Los Angeles Abrasion Test (AASHTO T 96). Provide a fine that is crushed stone screenings, natural sand, or a blend of the two. No more than 10 percent of the total aggregate blend may be natural sand. Mix Design. Use a mix design that complies with Subsection 401.02.3, with the following exceptions:
Part 400 — Asphalt Pavements August 2025
SECTION 411 — PAVER PLACED ELASTOMERIC SURFACE TREATMENT 400-37
411.03 Construction Methods.
Surface Preparation. Prepare the surface as described under SECTION 401. For the adjustment of drainage appurtenances (e.g., manholes, catch basins), see SECTION 707. For the reconstruction of drainage appurtenances, see SECTION 704. Production Tolerances. Ensure that the aggregate gradation and asphalt binder content of the production mix compl ies with the job-mix formula and optimum asphalt binder content, within the following tolerances: Sieve Size Tolerance ½ in. — ⅜ in. ±5% #4 ±7% #8 ±4% #30 ±4% #50 ±3% #200 ±1.5% Asphalt Binder ±0.3% Mixing and Compaction Temperatures. Ensure that the mixing and compaction temperatures are as recommended by the supplier of the modified asphalt binder. Weather Limitations. Only place the PPEST when the surface is dry and the surface temperature is at least 50 oF and rising.
Part 400 — Asphalt Pavements August 2025
400-38 SECTION 411 — PAVER PLACED ELASTOMERIC SURFACE TREATMENT Time Limitation. Do not place the PPEST before June 1 or after September 30. Tack Coat. Apply an SS-1, SS-1h, RS-1, or RS-1h asphalt emulsion tack coat uniformly over the surface on which the PPEST will be placed. Use an application of 0.10 ± 0.01 gal/sq yd. Apply the tack coat using the proper nozzle settings and the double coverage or triple coverage techniques outlined in Chapter 5 of the Asphalt Institute publication MS -22, “Construction of Hot Mix Asphalt Pavements.” Placement. Use the mix placement temperature as recommended by the supplier of the modified asphalt binder. Ensure that the paver is equipped with thermostatically controlled heaters for the screed and screed extensions. Ensure that the heaters remain on throughout the paving process. Ensure that the cold edge of longitudinal joints are as vertical and square as possible. Push back sloughed or disturbed material at the edge to form a vertical face in alignment with the joint. Compaction. Provide a compacted thickness of the PPEST of 1.0 in. ±¼ in.
411.04 Method of Measurement.
Paver Placed Elastomeric Surface Treatment will be measured by the number of tons of paver- placed surface treatment completed in place.
411.05 Basis of Payment.
The Department will pay for the completed and accepted quantities at the Contract unit price as follows. Pay Item Pay Unit Paver Placed Elastomeric Surface Treatment TONS The Contract price constitutes full compensation for all traffic control, surface preparation; furnishing, transporting, handling, placing, and rolling the PPEST material; site cleanup; furnishing all labor, tools, equipment, and incidentals for the satisfactory completion of the work required to finish the work, complete and accepted.
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