T BEAM CUBE TEST RESULTS – CRITERIA FOR DETENSIONING
Transfer Cube Tested
(Crushed)
Test Cube achieves
a strength of
35N/mm2
Bed can be De-tensioned
YES
Record in Black or Green
ink on Marker Board
Record on Cube test result
sheet
NO
If a test cube does not reach
the required 35N/mm2 strength
RECORD IN RED INK ON
MARKER BOARD
The Bed must NOT be detensioned until a 2nd Cube
has been tested and achieved 35N/mm2
(See the table below for extended curing times
before conducting a 2nd test).
Between 25 & 30N/mm2
30 – 32N/mm2
33 - 34N/mm2
Wait for at least
Wait for at least
Wait for at least
Has 2ND Test Cube
achieved a strength
of 35N/mm2
hours
hours
hours
YES
NO
The Bed must NOT be detensioned
(See the table above for extended curing times before
considering detensioning.
DO NOT DETENSION THE BED WITHOUT THE PERMISSION
OF THE T BEAM FOREMAN OR THE FACTORY MANAGER
Cube failure procedure – T beam
version 1 – June 2018
RECORD IN RED INK ON
MARKER BOARD
and
Make notes on the Cube
test result sheet