Joint Repair & Preservation for Existing Headers
Rapid-Curing, Load-Bearing Polymer Solutions for Concrete and Asphalt
When expansion joints and their adjacent concrete headers begin to fail, project managers are often faced with a difficult choice: execute a costly, full-depth demolition of the header, or attempt a temporary patch that will inevitably fail under the next freeze-thaw cycle. GeoCHEM provides an alternative. Our engineered Percol® polymer and slurry systems allow you to repair and rebuild the joint using the existing header, saving critical time and budget while delivering permanent, load-bearing performance.
The Challenge & Consequences of Failure
The Context: Existing headers on bridges, airport runways, and highways act as the frontline defense against heavy kinetic impacts and dynamic load transfers. Over time, continuous vehicular traffic and environmental exposure degrade the concrete matrix at the joint edge.
The Consequence: Ignoring minor joint degradation leads to severe spalling, uncontrolled water infiltration, and the eventual loss of the header's structural integrity. Traditional concrete patching materials lack the flexibility to absorb impact, meaning they quickly crack and delaminate when subjected to the intense shear stress generated by heavy truck or aircraft tires.
The GeoCHEM Solution
GeoCHEM’s Percol® concrete repair products are specifically formulated to bond tenaciously to existing headers. By utilizing advanced polymer chemistry, these solutions provide the necessary mitigation of kinetic shock while offering exceptional chemical and moisture resistance. Because they cure rapidly, they drastically reduce facility downtime and lane closures.
- GeoSet Rapid Concrete Repair Slurry: Ideal for fast-setting spall repair and joint restoration. Provides a durable, load-bearing surface that is easy to apply via 5-gallon kits.
- Elastic Cement: A machine-dispensed polymer concrete that combines aggregates for high-performance, rapid-setting flexible repairs. It provides critical thermal management, stretching and compressing with the existing header during seasonal temperature swings.
- Concrete Welder: Available in 21 oz cartridges for efficient hand-dispensing. Delivers unparalleled adhesion for repairing tight joints and localized spalls.
- Dopey Soup: A hand-mixed, flexible polymer concrete scalable from 3 to 100-gallon kits, engineered for rapid repair of both small and large-scale projects.
- Cold Weather Catalyst: Ensures reliable curing for GeoFlo and GeoSet systems even when ambient temperatures drop below 75°F.
In the Field: Application & Scale
Whether you are repairing a commercial parking deck or executing an emergency fix on an airport runway, the success of a polymer repair depends on proper mixing and application. GeoCHEM supplies professional-grade equipment tailored to the scale of your repair:
- VariFlo Upright Polymer Dispenser: Portable, high-speed dispensing for heavy-duty, large-scale polymer concrete applications.
- Motor Mix Machine: Provides consistent, efficient blending for high-volume, machine-dispensed projects.
- Pail Mixer (Egg Beater Style): The standard for ensuring consistent matrix preparation for hand-mixed polymers like Dopey Soup.
- Hand-Operated Dual Cartridge Gun: Ensures precise, controlled placement of Concrete Welder into localized cracks and joints.
| Resource Type | Documentation Link |
|---|---|
| Application Guide | Joint Repair Using Existing Headers (.pdf) |
Review Your Site Specs with an Expert
Do not risk premature joint failure by applying standard patching materials to high-impact zones. Connect with our technical engineering team to evaluate your existing header damage, environmental conditions, and logistical constraints. We will help you select the exact Percol® polymer system required to permanently restore your site.
