Production of prestressed concrete by post-tensioning technology (tensioning of steel strands in the concrete) is divided into two types: bonded and unbonded.
Post-tensioning technology uses high-strength steel strands as prestressed reinforcement. Stressing is carried out with special hydraulic jacks. Strands are anchored at both ends. Imposed load creates compression in concrete. Thus, concrete can resist the tension
Our company delivers materials and equipment for installation of both types of post-tensioning: bonded and undonded. For each specific case we choose the most economically reasonable way and take into account all requirements for reliability of post-tension structures.