Post-Tensioning Repair
Specialized repair and rehabilitation of post-tensioned concrete systems — tendons, anchorages, and the concrete elements they stress.
Post-tensioned concrete is used extensively in Texas for parking structures, commercial buildings, bridges, and slabs-on-grade. These systems rely on high-strength steel tendons under tension to provide structural capacity. When tendons corrode, anchorages deteriorate, or the surrounding concrete is damaged, specialized repair techniques are required that account for the unique stresses in post-tensioned systems. Texas Structural Concrete has the specialized expertise to evaluate, repair, and rehabilitate post-tensioned structures safely and effectively.
Why Choose TSC for Post-Tensioning Repair
Specialized Expertise
Post-tensioned systems require repair technicians who understand tendon stresses, anchorage mechanics, and the risks of improper repair.
Safety-Critical Repairs
Corroded or damaged tendons can fail catastrophically. Timely repair prevents progressive failure and safety hazards.
System Preservation
Proper repair maintains the post-tensioning force that the structure depends on for its load-carrying capacity.
Cost Avoidance
Repairing post-tensioning systems is far less expensive than the structural replacement required after tendon failure.
Our Post-Tensioning Repair Process
System Evaluation
Assess tendon condition using ground-penetrating radar, magnetic methods, and selective exposure to determine corrosion extent and remaining capacity.
Repair Design
Engineers design repairs that account for tendon stresses, load redistribution, and the specific failure mode observed.
Tendon Repair
Execute tendon repairs including splice installation, anchorage rehabilitation, re-stressing, and grouting of repaired areas.
Concrete Restoration
Repair concrete damage around tendon repair areas using compatible materials that do not interfere with tendon function.
Protection & Monitoring
Apply corrosion protection to repaired areas and establish monitoring protocols to track ongoing system performance.
Tendon Corrosion Repair
Post-tensioning tendons corrode when the protective grout or sheathing is breached, allowing moisture and chlorides to contact the high-strength steel. Corroded tendons lose cross-section and can fail without warning. Our tendon repair process includes careful exposure of the corroded area, assessment of remaining strand capacity, installation of mechanical or epoxy-bonded splices where needed, re-grouting with corrosion-inhibiting grout, and restoration of the protective sheathing system.
Anchorage Rehabilitation
Post-tensioning anchorages — the hardware at each end of the tendon that transfers the prestressing force to the concrete — are vulnerable to corrosion, especially in parking structures and bridges exposed to deicing salts. Anchorage rehabilitation includes removal of deteriorated concrete around the anchorage, corrosion treatment of the anchor hardware, installation of supplemental confinement reinforcement if needed, and encapsulation with high-performance repair concrete and protective coatings.
Emergency Tendon Failure Response
When a post-tensioning tendon fails, the structure loses a portion of its designed load-carrying capacity. Immediate engineering assessment is required to determine if the structure is safe for continued occupancy and what emergency measures are needed. We provide rapid-response evaluation and emergency shoring, load restriction, and repair services for post-tensioning failures in parking structures, buildings, and bridges.
Frequently Asked Questions
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Contact Texas Structural Concrete for a free consultation on your post-tensioning repair project. Veteran-owned. Nationwide service.