Section R. 408.42522 - Placing and removing formsRule 2522.
(1) Forms shall not be completely removed until a determination has been made that the concrete can support its own weight and any currently superimposed load. Such determination shall be based on compliance with either of the following: (a) The plans and specifications stipulate conditions for removal of forms and shores, and such conditions have been followed.(b) The concrete has been properly tested with an appropriate ASTM standard test method designed to indicate the concrete compressive strength, and that the test results indicate that the concrete has gained sufficient strength to support its weight and superimposed loads.(2) Vertical, horizontal, and overhead forms that are being raised or removed by lifting equipment shall be braced or secured before being released from the load line.Mich. Admin. Code R. 408.42522
1980 AACS; 1989 AACS; 2003 AACS; 2013 AACS