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Econ-O-Cap Unbonded Capping System - Compression Pads

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The Neoprene Compression Pad flows into irregularities and distributes the test load uniformly without creating air pockets to assure consistent breaks.

Compression pads are available in several hardnesses.
50 duro for design strength 1500 to 6000 psi.
60 duro for design strength 2500 to 7000 psi.
70 duro for design strength 4000 to 12,000 psi*.

*Qualifying tests must be performed for strength over 7,000 psi per ASTM.

Refer to ASTM C1231 for max uses, qualification test, etc. (see note below). Pricing are full cartons. Our sales personnel are always available to assist.

dia	50 duro	60duro	70 duro	pkg size
6"	6MP50	6MP60	6MP70	24 pcs
4"	4MP50	4MP60	4MP70	20 pcs
3"	3CP50	3CP60	3CP70	20 pcs
2"	2CP50	2CP60	2CP70	12 pcs

dia	90 duro	pkg size
4" high strength	4CP90	2 pcs

All meets ASTM Standard C1231 and AASHTO Standard T22-851, except 4CP90

Pad Reuse

Per ASTM C1231, the pad can be reused up to a maximum of 100 times. But Cautions that:“Pad life depends on the hardness and type of pad material, the strength of the concrete, the difference between the outside diameter of the cylinder and the inside diameter of the retaining ring, the unevenness and roughness of the ends of the cylinder, and other factors. Based on available information, scuffing or abrasion of the perimeter of the pad is normal, provided it does not reduce the thickness of the pad around the perimeter. Cracks or splits in the pad are reported to materially reduce cylinder strength. Replace pads which have cracks exceeding 3/8 in. in length, regardless of depth.”