Hollow Plane Pressure Injection
Fix the Void Before the Fracture.
Have you noticed a “hollow” thud when walking across your terrazzo or stone floor? That sound is a warning. A hollow plane occurs when the terrazzo topping delaminates from the concrete substrate, creating an air pocket. Without support, that section of the floor will eventually succumb to foot traffic, resulting in a “spider-web” collapse.
At TerCon Systems, we specialize in Hollow Plane Pressure Injection—a surgical, non-destructive method of re-bonding your floor to its foundation without the need for demolition.
The TerCon Injection Protocol: Reinforcing from the Inside Out
We don’t replace the floor; we stabilize it. Our process is designed to be low-impact and high-integrity.
Acoustic Mapping & Detection
We "sound" the floor to map the exact boundaries of the delamination. This ensures we target only the compromised areas, preserving the original material.
Precision Porting
Using micro-bore diamond bits, we drill inconspicuous injection ports. These are strategically placed—often within the marble aggregate—to be invisible once complete.
Low-Viscosity Resin Injection
Using specialized equipment, we pump a proprietary, high-strength structural epoxy into the void. This resin is thinner than water, allowing it to fill every microscopic crevice.
Structural Re-Bonding
As the resin cures, it creates a permanent molecular bond between the terrazzo and the concrete slab, restoring the "monolithic" strength of the floor.
Invisible Port Restoration
Ports are filled with custom-matched matrix and aggregate, then diamond-honed to match the surrounding floor.
Benefits of Pressure Injection
Avoid Demolition
Save thousands by avoiding the “rip out and replace” cycle.
Preserve History
Ideal for historic landmarks where original terrazzo must remain intact.
Zero Downtime
Unlike replacement, our process allows for immediate use of the area.
Stop the Spread
Stabilizing a small hollow spot prevents a total structural failure.
Injection & Stabilization FAQ
The easiest way to tell is by sound. A solid floor has a high-pitched "ping" when tapped; a delaminated area produces a dull, "hollow" thud. You may also feel the floor "give" slightly when heavy carts roll over it.
No. We use specialized, non-staining architectural-grade epoxies designed specifically for natural stone. The resin stays beneath the surface and does not "bleed."
Yes. Stairs are where hollow spots are most dangerous. We use both gravity-fed and pressure-injection techniques to stabilize treads and stringers, ensuring public safety.
Yes. The structural resins we use are engineered to be stronger than the original cement bond. Once cured, the terrazzo and concrete slab become a single, unified structure.
We can stabilize everything from a single 6-inch spot to a multi-thousand-square-foot commercial lobby. No project is too small for a preventive fix.
“We provide the structural backbone your historic floors have lost over time.”