Post-tech® PTI Impregnation - Corrosion Protection for Bonded Post-tensioning
The Post-Tech® PTI Impregnation System is specifically engineered to mitigate corrosion in bonded post-tension tendons. The impregnation material is applied under pressure and travels along the length of strands to mitigate corrosion in tendons with grout defects such as segregation, soft grout, chloride contamination and voids.
The Post-Tech PTI impregnation process can be completed from the end anchorage or from intermediate locations along the length of the tendon. Experience has shown that the Post-Tech PTI impregnation material can flow through the interstitial spaces along the length of a tendon at least 250 ft (75m) from a single entry point.