[Construction Case] Highway Toll Booth Concrete Pavement Leveling

basic information

■ The Upcon Method [Concrete Pavement Slab Settlement Correction Method] In the Upcon method, small holes with a diameter of 16mm are drilled into concrete pavement slabs that have experienced settlement, unevenness, tilting, or voids. While continuously monitoring the level in millimeter increments, polyurethane resin is injected. The resin injected beneath the slab expands rapidly under pressure, compacting and strengthening the ground, improving bearing capacity, and lifting the concrete to correct it. The required strength of the resin manifests in about 120 minutes. Additionally, if voids occur beneath the slab, they can be filled using the same method. ■ Features of the Upcon Method 1. Short construction time: The required strength is achieved approximately two hours after the injection of polyurethane resin, allowing for early reopening of the area. 2. Settlement correction of footings and sleeper slabs can be performed without excavation. 3. Improvement of looseness in the subgrade. 4. Responsive with mobile plant vehicles. We provide total support for on-site surveys, repair planning, and construction across the country, with our own staff taking full responsibility. Our trained and experienced staff will propose the optimal repair plan tailored to your site.

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Applications/Examples of results

Concrete pavement slab settlement correction and slab void filling work