Joske SW…
Product Description
The Joske -SW is a multi layer, Paved and Poured in place, Polyurethane and rubber running track system. Thickness of the surface can vary depending on the Owners needs and budget. The specifications herein are based on 14.2mm. The impermeable running track system consists of (1) base primer, (2) 11.mm EPDM rubber and Polyurethane shock mat, (3) Mastic Sealer, (4) 3.2mm flow applied polyurethane flood coat and Rubber. (5) Line Striping.
Materials
A) Pavement Primer - .20 kg/m2
B) Industrial EPDM Rubber - 7.5 kg/m2
C) Shock Mat Polyurethane - 21% of the total rubber weight.
D) Pore Sealer - 1.4 kg/m2
E) Two Component Polyurethane - 2.2 kg/m2
F) Gezolan Red EPDM Rubber - 4.0 kg/m2, scattering quantity
G) Soft Aliphatic Polyurethane - .29 kg/m2*
Installation
A. Pavement Inspection - It is highly recommended that all sandwich systems be placed over porous (popcorn) asphaltic paving. Check pavement for any irregularities. Area to be surfaced shall not vary from the required line, grade and cross-section set forth in the owner specifications by more than 1/8” in 10’. Any irregularities shall be corrected with the Shock mat material. No fillers may be used to repair low areas. High spots shall be ground off prior to installation of shock mat material. Asphaltic pavement must have cured at least 14 days prior to surfacing installation. Concrete surfacing shall have a minimum of 30 days cure time. All areas to be surfaced must be clean from dust or other matter prior to installation.
B. Primer - Polyurethane based Primer shall be applied to the pavement at a rate of .20 kg/m2. Primer shall be formulated to insure adhesion between the paving and the new polyurethane surfacing. Shock mat to be installed within 24 hours of applying primer.
C. Shock Mat - Shock Mat is manufactured from single component polyurethane binder and industrial grade rubber. The Polyurethane and rubber shall be mixed in a continuous mixer at a ratio of 100 lb. rubber to 22 lb. of polyurethane. Batch mixing will not be allowed. Shock mat shall be applied with a sports paver specifically designed for running surfaces with a heated vibrating screed. 11’ SMG Plano Matic, 1999 or newer. Minimum rubber is 7.5 kg/m2. Minimum Polyurethane is 21% of the total rubber weight. Industrial grade EPDM rubber granules processed to a size of between 1mm-3mm. free of fabric and foreign material. Recycled tire rubber will not be allowed. Moisture content shall not be more than 3%.
D. Mastic Sealer - The two component Polyurethane mastic shall be applied at a rate of 1.4 kg/m2 in order to seal the Shock Mat making it impermeable. The Flood Coat shall be applied within 24 hours of the Sealer. Installer shall not apply mastic to any areas which cannot be re-coated within the 24 hour time period. Any areas which go beyond the 24 hour time frame shall receive a coat of Primer before proceeding with additional layers.
E. Texture Coat: 1) Broadcast Texture - The broadcast texture is two component Polyurethane with a specific gravity between 50 and 55 and Rubber granules. The Polyurethane shall be flow applied. The Colored Rubber granules shall be broadcast on top of the freshly applied Polyurethane at a rate of 4.0 kg/m2. After the Polyurethane has cured, the excess rubber shall be removed. The embedded rubber which remains shall measure about 2.5 kg/m2. 2) Encapsulated Texture - Texture Coat - Using a structural spray machine, apply a mixture of Polyurethane and EPDM rubber. This mixture shall be 100 parts polyurethane to 45 parts rubber granules by weight. The size of the rubber granules will determined the amount of texture. Granules can be between .5mm-4mm depending on the owners needs. Spray apply a minimum of 2 coats, or until the required minimums have been meet.
F. Aliphatic Top Coat (Encapsulated Texture Only) - Using an airless spray machine, apply two coats of Polyurethane soft aliphatic top coating. This material shall be applied at a rate of not less than .32 lb./yd. per coat. Apply in two layers being sure to spray in opposite directions for each layer. Total application rate shall be .29 kg/m2.