PAVED IN PLACE POLYURETHANE TRACK SURFACE WITH POURED IN PLACE GRANULAR TOP

1. PURPOSE:
The intent of this specification is to provide a guideline for the improvement of a previously sound bituminous concrete sub-base. Action Track 800 is a university grade running track surface consisting of a urethane bound black EPDM base mat, which is sealed with a polyurethane coating. The top surface is poured in place with rubber granules embedded, creating a textured top.

2. SCOPE:
The work covered by this specification consists of furnishing all labor, equipment materials, and performance of all operations in connection with the installation of the surface on track and field events.

3. STANDARD OF QUALITY:
The standard of Quality for the Synthetic Track Surface shall be “Action Track 800” as manufactured by Nagle Seal Coating Inc. in Liverpool, New York at (315) 622-1313.

4. CONTRACTOR QUALIFICATIONS:
Contractors must show evidence of at least five surface installations in the last three years utilizing the exact system specified. Contractors wishing to be considered as an “or equal” must provide documenta- tion for their products twelve days prior to the bid opening. Information shall include the following: A complete list of references with project name and contacts, with phone numbers, for each equal installation, or approved equal surface.

5. MATERIALS:
•Action Track Polyurethane Primer.
•EPDM Rubber Base Mat Granulate, 1mm to 4mm rubber containing no dust.
•Action Track MDI base mat biding agent.
•Action Track Seal Coat two component pigmented binder.
•Action Track Polyurethane Flood Coat. Two component, self leveling polyurethane.
•EPDM Granulate 1mm – 4mm.
•Action Track line marking paint.

6. SURFACE PREPARATION:
•After a suitable soil sterilant, a recommended bottom course shall consist of 4” to 8” of compacted crushed stone, gravel, or suitable aggregate over a firm, stable frost free sub-grade which has been brought to proper contour and elevation in strict accordance with drawings and/or specifications, and compacted to 95% density.
•A binder-leveling course of an open-textured bituminous concrete (maximum stone size of ¾”) is laid upon the pre-pared bottom course to a compacted thickness of 1.5”.
•The wearing (top) bituminous concrete course consists of 3/8” maximum aggregate to a thickness of 1” compacted.

7. PLANARITY AND SLOPE:
Before the application of the surface course, the asphalt base should be tested for planarity using a 10’ straight edge. All leveling work should be performed so that the finished surface slope is a minimum of 1%. Low spots to be rectified prior to installation of base mat.

8. PROCEDURE:
BASE MAT:
•Following inspection of asphalt base and required curing time, the entire area to be surfaced shall be thoroughly cleaned, removing any foreign and loose material.
•Action Track Polyurethane Primer will then be applied to the surface to receive the base mat.
•The base mat will consist of an 18 to 23% range polyurethane base mat binding agent and 77 to 82% range EPDM rubber base mat granulate as described above. This mixture is prepared in a mechanical mixer or suitable continuous mixer which is clean and dry. The base mat is applied with mechanically operated screed machine which has an electrically heated screed. All joint work will be flush with the adjacent mat. Joints which have cured will have their edges primed with Action Track Polyurethane Primer.
CHOKE COAT:
•A squeegee applied layer of Action Track seal coat shall be applied at an approximate rate of 3 lbs. per square yard.
•This coating shall completely seal the base mat.
TEXTURED TOP SURFACE:
•The Action Track 2 component polyurethane flood coat shall be applied at a depth of 3mm.
• dry rubber particles shall be evenly distributed on to the flood coat.
• 1-4mm colored EPDM rubber particle shall be applied at a rate of 6.5 lbs. per square yard. Upon full cure, the non-bonded rubber particle shall be removed.
•The rubber remaining will be approximately 5 lbs. per square yard.

9. MINIMUM PHYSICAL PROPERTIES OF THE SURFACE:
-THICKNESS: 13mm or as specified by architect or engineer
-HARDNESS: (ASTM D42240): Shore A @ 50 to 55
-ELONGATION (ASTM D412): 93.0%
-TENSILE STRENGTH (ASTM D412): .89 N/mm
-ABRASION RESISTANCE (ASTM D501): 0.25 TO 0.28 grams loss after 1000 cycles
-CHALKING (ASTM D822): No change after 1000 hours in weatherometer
-COEFFICIENT OF FRICTION (ASTM D1894): Dry-0.70 to 0.75 • Wet-0.60 to 0.65
-RESILIENCE (ASTM D2632): 37 TO 44%
-TEAR RESISTANCE (ASTM D624): 60 TO 75 PSI

10. WARRANTY:
Five (5) years from the completion date.

11. LINE MARKING:
The measurement and marking of the lines and events will be performed according to the recommendations of Nagle Seal Coating Inc. and/or in accordance with the drawings and specifications of the architect or engineer and/or in accordance with N.F.H.S.A., I.A.A.F. regulations. The line paint to be used shall be compatible with polyurethane surface as recommended by Nagle Seal Coating, Inc.

12. COLORS AVAILABLE:
Black, Red, Blue, Green. Additional colors available upon request.