The BCA (Chaplin) Abrasion Tester gives a guide to
the abrasion resistance of concrete floors. It can also be used to test the
effectiveness of surface treatments used to protect or upgrade sub-standard
floors. The depth of wear in the concrete floor brought about by the action
of 75mm diameter by 20mm wide hardened steel wheels is used as a guide to
the abrasion resistance. The apparatus is suitable for compliance testing to
the requirements of BS 8204: 1987: Part 2 and EN 13892-4.
The abrasion tester consists of three 75mm diameter hardened steel wheels
mounted tangentially on a circular steel carrier plate. The wheels are
fitted such that they are free to rotate but not castor. The carrier plate
is connected to a single phase electric motor which runs at approximately
190 rpm. mounted in a steel frame.
An umbilical cable connects the electric motor to a small control box,
which monitors the number of revolutions executed by the shaft of the motor.
At the end of a preset number of revolutions, a counter in the control box
switches off the power to the electric motor. During a test, the Abrasion
Tester is completely covered by a Safety Enclosure which reduces the noise
level and prevents access to the rotating parts of the machine. The
enclosure has a Safety 'Off' switch and is also fitted with micro -switches
at the bottom which switch off the.
Meets: - BS 8204: 1987: Part 2 and EN 13892-4.
- Tester if the enclosure is raised. Electronic Depth Gauge A tripod
gauge with a user selectable resolution of.
- 0.01mm. the battery operated gauge is fitted with a zero button and
an ON/OFF switch.