Void Filling in Troy, NC

Void filling involves injecting specialized materials into empty spaces beneath foundations, concrete slabs, and roads to restore support, prevent shifting, and eliminate safety hazards. We use advanced techniques such as polyurethane foam injection, compaction grouting, and cement-based fillers to fill gaps efficiently and permanently.

Common Causes of Underground Voids and Foundation Settlement

• Soil Erosion and Washout – Water removes supporting soil beneath foundations, driveways, and sidewalks.
• Sinkhole Activity and Subsidence – Underground voids form due to limestone dissolution or soil shifting.
• Poor Soil Compaction During Construction – Loose soil compresses over time, leading to settlement.
• Water Main Leaks and Drainage Problems – Leaking pipes cause subsurface erosion, creating gaps.
• Tree Root Decay – As roots decompose, they leave behind voids in the soil.

Void Filling Methods We Use

• Polyurethane Foam Injection – Expands to fill gaps, stabilize soil, and reinforce weak areas.
• Compaction Grouting – Pressurizes grout into voids to densify and strengthen soil.
• Cementitious Slurry Injection – Fills underground gaps with high-strength cement-based grout.
• Flowable Fill Concrete – A self-leveling mix used to stabilize large voids and prevent shifting.
• Soil Reinforcement and Waterproofing – Reduces future erosion and water infiltration issues.