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> Gilson co. unbonded capping set/ 6" neoprene pads HM174
Gilson co. unbonded capping set/ 6" neoprene pads HM174
Neoprene Pad, 6-inch, 50 Durometer, Set of 2 Pads only
The system is comprised of two plated alloy steel retainers and two tough 1/2", (12.7mm) thick neoprene pads. The pads flow under compression to fill irregularities in cylinder ends and assure load uniformity. Pads are reusable up to 100 times or more with qualification testing. Retainers are permanent with normal use and care. Inside and outside bearing surface of the retainers are plane within 0.002" (0.05mm).
Order Retainer Sets and Pads separately. Pads and retainers for 4" (102mm) and 6" (152mm) diameter specimens comply with latest version of ASTM C1231. The 50 durometer pads meet tensile strength and durometer requirements of AASHTO T22 and are appropriate for ASTM C 1231 from 1500 to 600 psi (10 to 40 MPa). 60durometer pads cover most common design strengths from 2500 to 7000 psi (17 to 50 MPa). 70 durometer may be used for strength from 4000 to 7000 psi (28 to 50 MPa) and with qualification testing by user, up to 12,000 psi (80 MPa). The 6" retainer sets meet "acceptable configuration" of AASHTO T22-92 and do not require acceptance testing as do alternative systems.
For quick release of pads from Unbonded Capping Set Caps, use Model HM-277 Quick Release Kit. Polysaccharide powder is a lubricant and bond breaker that extends pad life. Test results are also more consistent. Kit includes 8-oz. of powder in a Shaker Dispenser and 48-oz. of refill powder. Order additional filled Dispensers or Powder Refills in packs of 2.
