Controls Group Unbonded capping pads Unbonded capping pads

Unbonded capping pads

General description
General description
This method is used as alternative to the sulphur hot capping of concrete cylinder specimens. The system consist of two alloy steel cap retainers and two 12.5 mm thick neoprene pads which are in contact with the upper and lower concrete surfaces. The pads even out irregularities, distributing the test load uniformly to ensure reliable strength results. Pads are reusable for many tests.

Important note
The total thickness of capping retainers and neoprene pads for dia. 150 mm (6”) specimens is 50-55 mm which has to be added to 300 or 6” specimen height summing to 355 mm approx. Verify the vertical clearance of your compression tester before testing and, in case of difficulty, get in touch with our service dept. to find a solution.
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Ordering info

Capping retainers
Capping retainers (couple) for 4” dia. concrete cylinders

Capping retainers (couple) for 150 mm (6”) dia. cylinders

Capping retainers (couple) for 160 mm dia. cylinders

Neoprene pads
Neoprene pads for 4” dia. cylinders 70 Shore A. Set of two.

Neoprene pads for 6” dia. cylinders 60 Shore A. Set of two.

Neoprene pads for 6” dia. cylinders 70 Shore A. Set of two.

Neoprene pads for 160 mm dia. cylinders. Set of two.


Contact Us

Controls Group USA, Inc.

2521 Technology Drive, Suite 203
Elgin, Il 60124.
Phone: +1 844 291 4305

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