Project Case Study: Residential Concrete Cancer and Spalling Remediation
Location / Project Site: 2-Storey Residential House, Batasan Hills, Quezon City

Scope of Work: Overhead Structural Repair, Reinforcement Corrosion Treatment, and Vertical/Overhead Mortar Infilling

Client: Engr. Noel Pabelonio (Project Engineer)

Product Solution (Product Used): Rust Converter, Epoxy Primer, Confix HV, Concrete Patch V

Narrative of the Story:
During the renovation of an old residence in Batasan Hills, Quezon City, the construction team uncovered a severe case of "concrete cancer" on the ceiling. Years of persistent water leaks from the roof deck had caused the internal steel reinforcements to rust and expand, forcing the surrounding concrete to crack and fall away—a dangerous condition known as spalling.

To save the structure, Engr. Noel Pabelonio implemented a comprehensive structural repair system. This wasn't a simple "patch-up" job with ordinary cement; it required a specialized sequence to stop the corrosion and restore the ceiling's integrity overhead.

The Buildrite Multi-Stage Repair System:
• De-rusting: First, Rust Converter was applied to the exposed rebar. This chemical treatment transforms residual rust into a stable, protective layer, halting the corrosion process that causes concrete cancer.
• Corrosion Protection: Epoxy Primer was then coated onto the steel to provide a high-performance barrier against future moisture and oxygen, ensuring the "cancer" would not return.
• Structural Bonding: To ensure the new repair mortar would stay attached to the old ceiling, Confix HV (High Viscosity) was used as a bonding agent. This "tacky" epoxy ensures a monolithic bond between the old concrete and the new patch.

Overhead Reconstruction: Finally, Concrete Patch V was applied. This is a specialized lightweight, high-strength mortar designed for vertical and overhead use. Unlike standard mortar, it is "sag-resistant," meaning it stays in place on the ceiling without falling during application.

Why this system was critical for this renovation:
• Structural Safety: By restoring the spalled areas, the structural load-bearing capacity of the floor was reinforced, making the home safe for the family again.
• Comprehensive Protection: Simultaneously waterproofing the roof deck (the source of the leak) and repairing the ceiling (the result of the leak) provided a permanent, top-to-bottom solution.
• Workability: Using "V" (Vertical/Overhead) grade mortar allowed the workers to achieve a smooth, flush finish on the ceiling without the need for complex formwork or support.

Thanks to the technical assistance provided to the owner and Engr. Pabelonio, the renovation successfully transformed a deteriorating house into a safe, modern residence.