Test Results
Turner manhole riser rings have been thoroughly tested to insure durability and strength for us in road and utility scenarios. Our full tests results are available below.
Proof Load Test on “MHEXT 24150PE – 24″ x 1-1/2” high Polyethylene Manhole Riser (Liner)
PROCEDURE: An FJT Liner was placed over a manhole ring flame and covered with a common manhole cover. The full assembly (Please see photos) was placed on a calibrated 0-100,000 pounds DK No. I Universal Testing Machine and a concentrated load was applied at center using a 1/4-inch thick reinforced rubber pad (shore hardness “A” 80) on which a 1-inch thick 9-inch by 9-inch square steel plate was placed
Ten (10) percent of the load required was applied @ 5,000 lbs_ for one minute.
The load was applied to the assembly at a rate of 50,000 pounds per minute. Once attained, the 50,000 pound proof load was applied for one minute.
Results are as follows:
| Test Number | Material Identification | Diameter Inches | Load, Pounds | Deflection @ Load Inches | Permanent Set (No Load) |
|---|---|---|---|---|---|
| 1 | NY 1.5 TURNER CO, RALEIGH N.C. (liner) | 24″ | 50,000 | 095″ | .037″ |
| 2 | NY 1.5 TURNER CO, RALEIGH N.C. (liner) | 24″ | 50,000 | 096″ | .035″ |
PRODUCT DATA SHEET – FPP3A15CC
| PROPERTY | AVERAGE VALUE | TEST METHOD |
|---|---|---|
| Melt Flow, g/10 min (230° C/2.16kg) | 3 | ASTM-D1238 |
| Filler Content, | 15 | Matrixx Method |
| Specific Gravity | 1.00 | ASTM-D792 |
| Notched IZOD Impact, ft-lb/in | 2.0 | ASTM-D256 |
| Gardner Impact, in-lb | <10 | ASTM-D5420 |
| Tensile Yield Strength, psi | 7900 | ASTM-D638 |
| Tensile Elongation @ Yield, | 8 | ASTM-D638 |
| Flexural Modulus (tangent), psi | 380,000 | ASTM-D790 |
| HDT @ 66 PSI, °F | N/A | ASTM-D648 |
| HDT @ 264 PSI, °F | N/A | ASTM-D648 |
| Linear Mold Shrinkage, in/in | 0.002 – 0.005 | Matrixx Method |
| Flammability, 1/8″ & 1/16″ | HB* | UL-94 |
* Internal Matrixx testing only; not currently approved by Underwriters Laboratories.