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  1. TA

    Steel Fiber STRUCTURAL Slab

    I have had limited past experience of the use of fiber reinforcement. The advice I received from the manufacturers is that it may safely be used as an anti-crack reinforcement, with the added bonus that it increases surface durabiity of the slab to impact and abrasion. I do not believe however...
  2. TA

    Any experience with excessive retardation of concrete?

    I am an analytical chemist and frequently been asked to detect sugar/retarder in hardened concrete. If anyone knows of a method please send it to me. Identify lignin and amine in concrete is fairly easy. But corn syrup, molasses, or sucrose is very difficult. Thank you.
  3. TA

    LATERAL BRACING

    IS A STEEL BEAM CONSIDERED LATERAL BRACED IF JOISTS ARE PERPENDICULAR TO THE STEEL BEAM(FLUSH FRAME) AND ATTACHED TO CONTINOUS WOOD BLOCKING WHICH IS SECURE TO THE WEBB? OR MUST THE STEEL BEAM BE BRACED AT THE TOP FLANGE BY SECURING WOOD NAILER TO FLANGE AND PLYWOOD SUBFLOOR ATTACHED?
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