TESTING/EVALULATION AND GROUT REMEDIATION OF POST-TENSIONING TENDONS

摘要

The durability of post-tensioned structures depends ultimately on the success of the grouting operation. The hardened cement grout provides bond between the concrete and tendon as well as the primary long-term corrosion protection for the prestressing steel. Recent corrosion problems in post-tensioned structures have increased the need for reliable methods to determine the presence of grout voids and restore the corrosion protection required in post-tensioning tendons.