Seneca Rocks Discovery Center Soil Subsidence Repair

Problem

• Soil Subsidence and erosion caused voids beneath the Seneca Rocks Discovery Center’s concrete slab foundations
• Some slabs were left with dips of up to 3”
• Settlement occurred in the Center’s conference rooms, hallways, bathrooms, and patio, causing tripping hazards

Solution

• Remove existing caulking and drill 5/8” holes through the slabs, causing little dust or disruption
• Inject the TerraThane 24-003 geotechnical polyurethane underneath the slabs to stabilize, voidfill, lift, and level the slabs
• Add drainage, new caulking and cleanup the areas with minimal disruption to the center’s activities

Results

• Filled all voids and leveled slabs
• Added minimal weight to the area when compared to concrete grout (4lbs vs 130lbs)
• Tripping hazards were mitigated
• Completed in 3.5 daysSaved thousands of dollars by avoiding replacement or versus alternative methods