Delray Beach Commercial Parking Deck Concrete Restoration
Comprehensive structural concrete rehabilitation and post-tension tendon repair across a 42,000 sq ft multi-level commercial parking structure in downtown Delray Beach, restoring structural integrity while keeping retail parking operations 100% active.
The Structural Challenge: Severed Tendons & Overhead Spalling Hazards
Serving busy Atlantic Avenue retail and dining destinations, the 2-level commercial parking structure faced severe concrete degradation.
Years of vehicle traffic, standing rainwater, and exhaust carbonation had penetrated unsealed contraction joints. Overhead concrete delaminations on the underside of elevated drive aisles posed an urgent safety hazard to vehicles and pedestrians below.
Most critically, ultrasonic testing revealed 18 compromised unbonded post-tension tendons whose protective plastic sheathing had cracked, allowing water to oxidize internal high-tensile steel cables. Closing the garage would cause catastrophic revenue loss for downtown merchants.
The Engineering Execution: Phased Post-Tension & Jacketing Protocol
Planet Construction implemented a 4-phase traffic diversion plan that maintained 75% parking capacity while heavy structural shoring and stressing occurred.
High-Frequency 2.6 GHz GPR Radar Scanning
Ground penetrating radar scanned slab interiors to pinpoint exact cable depths and conduit trajectories, eliminating the risk of cutting live neighboring cables.
GSSI 2.6 GHz High-Frequency GPR SurveyOverhead Concrete Hydro-Demolition & Shoring
Hydraulic shoring towers supported elevated slabs while hydro-demolition chipped away delaminated overhead beam sections back to sound parent concrete.
ICRI Guideline 310.1R Overhead PreparationDogbone Coupler Splicing & Hydraulic Tensioning
Corroded tendon segments were cut out cleanly, spliced with PTI-approved dogbone couplers, and re-stressed to 33,000 lbs force using calibrated hydraulic stressing jacks.
PTI DC80.3 Post-Tension Field StandardMicro-Concrete Jacketing & Zinc Priming
Treated rebar was encapsulated with sacrificial anodes and pumped with self-consolidating, high-early-strength micro-concrete (5,000+ PSI).
ASTM C928 Polymer Mortar • NACE CathodicHeavy Vehicular Polyurethane Deck Waterproofing
Application of multi-layer elastomeric vehicular traffic deck membrane with aluminum oxide aggregate to withstand tire shear and resist petroleum fluids.
ASTM C957 Vehicular Heavy-Traffic SystemTechnical Specifications & Municipal Verification Log
Every material and method deployed adhered strictly to Florida Building Code, manufacturer warranties, and signed engineering calculations.
| Scope Parameter | Engineered Specification | Governing Standard | Verification Method |
|---|---|---|---|
| Non-Destructive Testing | 2.6 GHz high-frequency GPR concrete scanning and ultrasonic flaw detection | ASTM D4748 Radar Standard |
Engineer-of-Record Radar Map Sign-Off |
| Post-Tension Tendon Strand | 0.5-inch 270k low-relaxation 7-wire steel prestressing strands | ASTM A416 Prestressing Strand |
Mill Test Reports & PTI Certifications |
| Hydraulic Stressing Force | Calibrated single-strand hydraulic jack pulling to 33,000 lbs (80% MUTS) | PTI Field Repair Manual |
Calibrated Gauge Elongation Log |
| Overhead Repair Material | SikaGrout 212 / MasterEmaco S 440 high-early-strength structural micro-concrete | ASTM C1107 Non-Shrink Standard |
Third-Party Compressive Cylinder Breaks |
| Vehicular Traffic Deck | Heavy-duty multi-tier polyurethane traffic membrane with aluminum oxide aggregate | ASTM C957 Heavy Vehicular |
Electronic Spark & Thickness Gauge |
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Official Office Email: office@planetconstructionservices.com
Direct Dispatch: 1500 NE 51st St, Fort Lauderdale, FL 33334
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