Question: A slab was poured on Saturday and the post-tensioning stressing end anchors were not installed. Are you aware of any type of fix for this problem?
Answer: Ted Neff at the Post-Tensioning Institute, Farmington Hills, Mich., responded: No easy fixes to offer. I think that you have two choices: 1) Cut back and chip into the recently cast concrete to create pockets where new anchors could be cast in, or 2) extend the slab to form-in anchors beyond the edge of the previously cast slab. Take care in either case to include any required back-up reinforcement in the new anchorage pockets. Once the concrete in the new anchorage pockets has been placed and gained adequate strength, the tendons can be stressed. One other caution: with the delay in stressing the slab due to this oversight, it is likely that there may be shrinkage cracking in the slab. If so, the cracks should be repaired and sealed after stressing.