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UNBONDED CAPPING PADS AND RETAINERS

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STANDARDS: ASTM C1231 | AASHTO T22, T851
Used for compression tests on concrete cylinder specimens, as an
alternative method to the sulphur capping and grinding machine.
Two steel capping retainers are applied on the two flat surfaces of
the cylinder.
Two neoprene pads are put between them, for a better load distribution.
The neoprene pads are available in two models:
– 60 shore hardness pads for expected strength from 10 to 48 MPa
– 70 shore hardness pads for expected strength over 48 MPa
The system is not applicable for expected strength lower than 10 Mpa
The couple of retainers + neoprene pads have a total thickness of
46 mm. Therefore the testing chamber of the press must have more
vertical clearance than the height of the specimen + 46 mm.

MODELS
C107-09 CAPPING RETAINERS (couple) for Ø 100×200 mm
cylinders.
C107-10 CAPPING RETAINERS (couple) for Ø 150×300 mm and
6×12” cylinders.
C107-12 CAPPING RETAINERS (couple) for Ø 160×320 mm
cylinders
C107-18 NEOPRENE PADS (couple) 60 shore A for
Ø 100×200 mm cylinders
C107-19 NEOPRENE PADS (couple) 70 shore A for
Ø 100×200 mm cylinders
C107-20 NEOPRENE PADS (couple) 60 shore for
Ø 150×300 mm and 6”x12” cylinders
C107-21 NEOPRENE PADS (couple) 70 shore for
Ø 150×300 mm and 6”x12” cylinders
C107-25 NEOPRENE PADS (couple) 60 shore for
Ø 160×320 mm cylinders
C107-26 NEOPRENE PADS (couple) 70 shore for
Ø 160×320 mm cylinders
C107-29 NEOPRENE SHEET (couple) 60 shore A
dimensions: 600x400x12 mm for test on blocks.

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