Strengthening of Structures using Internal Post-Tensioning System

In cases where a concrete structure in need of addressing concerns with strengthening due to deterioration, overloading, construction defects, or simply change of purpose, CTech-LLC®’sTensa-In™Internal Post-Tensioning System is an ideal, engineered solution.Tensa-In™ Internal PT system provides active reinforcement by placing the concrete structure under compression in those regions where load causes tensile stress.
Tensa-In™Internal PT system consists of high strength tendons (steel strands or bar) that are typically installed within a Strata Enlargement System™, or they may be installed into an existing member through core drilling or other methods and the anchorages needed at both ends of structural element.
After the tendons installation, the tendons stretch as they are tensioned with a jack and locked into place using an anchoring component, introducing compressive stress on the structural member, which offsets the tensile stress the concrete member might face under loading.
CTech-LLC® Tensa-In™Internal PT system has a well-earned reputation for its quality, reliability, and durabilityand issuitable for repair and strengthening works of buildings, bridges, tanks, silos, and special structures.

Key Features:

  • Tensa-In™ system is used extensively to address concerns with functionality of structure deteriorated due to excessive deflection and/or cracking.
  • Utilized for increasing or restoring the load-carrying capacity to design specifications.
  • Cost effective solution alternative to remove and replace option.
  • The system can be used to strengthen concrete and steel beams, girders, truss chords/diagonals
  • Tensa-In™ system is used to stresses relief , deflections reduction, improve fatigue details and adding live load capacity
  • Dead load increasing would be negligible.
  • The flexibility of the strand is a major advantage, allowing it to be profiled through the concrete element.

Common Applications:

Buildings Transportation Infrastructure Water & Wastewater Structures Oil, Gas & Industrial Facilities Waterfront Structures
Structural Strengthening
Concrete Repair
Corrosion Control & Protection
Leak Repair
Force Protection
Coating and Waterproofing

Tensa-In™ Components


Product Name Product Description Technical Data Sheet
7 Wire Pre-stressing Strand Seven Cold-Drawn Wires Technical Data Sheet


Product Name Product Description Technical Data Sheet
LEA™ Live-End Anchorage Technical Data Sheet
DEA™ Dead-End Anchorage Technical Data Sheet
INA™ Intermediate Anchorage Technical Data Sheet
COA™ Coupler Anchorage Technical Data Sheet


Product Name Product Description Technical Data Sheet
MCD™ Metal Corrugated Duct Technical Data Sheet
PPD™ Polypropylene Plastic Duct Technical Data Sheet

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