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