4in (101.6mm) Neoprene Pads are available in 50, 60, or 70 durometer for compressive strength testing of 4x8in concrete cylinders, and meet requirements of ASTM C1231/1231M and AASHTO T 22. These 0.5in (12.7mm) thick pads flow during compression to fill irregularities in cylinder ends and assure uniform load distribution. The 4in Steel Retainer Set is sold separately and is required to contain the pads at each end of the concrete cylinder. Two pads are required for testing. Pads are reusable in up to 100 tests, and are sold individually or in a package of 12.
The 4in, 50 Durometer Pads are suitable for testing concrete strengths from 1,500-6,000psi (10-40mPa).
Neoprene Compression Pads Strength
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 12000 psi
- 90 duro is designed for high strength compression
The Neoprene Caps are sold individually and two are required for compression testing of concrete cylinders.
Per ASTM C1231, the neoprene pad can be reused up to a maximum of 100 times.
Neoprene Pad Caps Meets Test Methods:
- AASHTO T22
- ASTM C 1231