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ACCESSORIES TO COMPRESSION AND FLEXURAL TESTING MACHINES – 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

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 and 4”x8” cylinders.
C107-19 NEOPRENE PADS (couple) 70 shore A for
Ø 100×200 mm and 4”x8” cylinders.
C107-20 NEOPRENE PADS (couple) 60 shore A for
Ø 150×300 mm and 6”x12” cylinders.
C107-21 NEOPRENE PADS (couple) 70 shore A for
Ø 150×300 mm and 6”x12” cylinders.
C107-25 NEOPRENE PADS (couple) 60 shore A for
Ø 160×320 mm cylinders.
C107-26 NEOPRENE PADS (couple) 70 shore A for
Ø 160×320 mm cylinders.
C107-29 NEOPRENE SHEET (couple) 60 shore A.
Dimension: 600x400x12 mm
For tests on blocks.
Note:
The capping retainers can be used only with compression testers
having increased vertical clearance of the testing chamber, respectively
to minimum 356 mm for the cylinders Ø 150×300 mm or
6”x 12”; and minimum 376 mm for the cylinders Ø 160×320 mm.

C110-30
UPPER COMPRESSION PLATEN
+ SPHERICAL SEAT
For tests on cylinder specimens diameters
100×200, 150×300, 160×320 mm
and 4”x8”, 6”x12”(to fix on the testing
machine, in replacement of the standard
one where requested), to meet the
ASTM C39, AASHTO T22 Specifications.
Platen dimensions: Ø 165×30 mm
Weight: 10 kg approx.

AUTO-CENTERING DEVICE
For cubes 100 and 150 mm side and cylinders Ø 100 and 150 mm
The lower compression platen of the testing machine is marked
with a serie of concentric circles to facilitate the correct centering of
the specimens. However to grant a rapid and accurate centering of
concrete cube and cylinder specimens, this “Auto-Centering” device
is recommended.
MODELS
C107 Auto-Centering Device, to be used with compression
machine having platen Ø 216 mm (1300, 1500 and
2000 kN)
C107-01 Auto-Centering Device, to be used with compression
machine having platen Ø 287 mm (3000 kN and high
stability machines)

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