J-DRain 500 consists of a high flow dimpled drainage core formed from a light duty impermeable polymeric sheet cuspated under heat and pressure, punched to allow double-sided drainage and then bonded to a layer of non-woven filter fabric on each side. The filter fabric retains soil and sand particles or freshly placed concrete or grout, allowing filtered water to pass into the drainage core.
Collected water is then conveyed to the J-DRain SWD collection system.
| PROPERTY |
TEST METHOD |
ENGLISH |
METRIC |
| Puncture - Fabric |
ASTM D-4833 |
65 lbs |
.30 kN |
| Compressive Strength - Core |
ASTM D-1621 |
15,000 psf |
719 kNm2 |
| Thickness - Core |
ASTM D-1777 |
.40 in |
10.16 mm |
| Flow - Core |
ASTM D-4716 |
21 g/min/m |
260 L/min/m |
| Flow - Fabric |
ASTM D-4491 |
140 gal/min/sf |
5704 L/min/m2 |
| Apparent Opening Size - Fabric |
ASTM D-4751 |
70 US Sieve |
.212 mm |
| Grab Tensile - Fabric |
ASTM D-4632 |
100 lbs |
.45 kN |
| ROLL SIZE |
AREA |
WEIGHT |
| 4' x 50' |
200 SF |
39 lbs |
Spec Interpretation