Stonel Associates, Inc.
25 Flint Ridge Road
Monroe, CT 06468
(203) 452-0470

Report No. 0221.4 Date: 07-MAR-01

Re: Polylok Riser - P/N 3009 and Lid - P/N 3009C

Test Conducted For: Polylok Inc.
173 Church Street
Yalesville, CT 06492

Tests performed At: United Concrete Products, Inc.
173 Church Street
Yalesville, CT 06492

Tests Witnessed By: George E. Nelson on 21-FEB-01

Items Tested: One Riser column with Lid, surface mounted to a large six (6) inch slab of concrete. The column consists of seven (7) HDPE injection molded Risers and one (1) HDPE injection molded Lid. Each Riser column is 20 inches in diameter and 42 inches in height. The Riser and Lid joints contain foam seals and all sections are secured together with number 10 x 1 ½ inch long stainless steel sheet metal screws. The bottom Riser is surface mounted on the concrete slab with one inch square butyl mastic sealant and secured on the slab with six 6 ¼ inch diameter x 2 ¾ inch long Tapcon screws.

Object of Testing: To determine the side pull force required to rip the column from the concrete slab, measured with a Dillon 10,000 lb. capacity Dynamometer.

Findings: A two-ply heavy-duty nylon sling was positioned on one column in the upper area of the seventh (top) Riser. The sling was linked to a 6,000 lb. capacity Lug-All rachet cable puller next to the Dynamometer and the loose end was secured on the frame of a 10 ton heavy duty fork lift truck. It required 1,000 lbs. of side pull force to rip the Riser column from the concrete slab.

Respectfully submitted,

George E. Nelson
Stonel Associates, Inc.