Concrete Crack Repair & Structural Rehabilitation SOP
Stop moisture ingress, rebar corrosion, and crack propagation in industrial floors, parking garages, and commercial slabs with CHEMPU advanced polyurethane crack repair systems.
Active vs Dormant Crack Diagnosis
Different crack mechanisms require distinct sealing approaches. Dormant shrinkage cracks can be gravity filled, while dynamic moving cracks require routed reservoir caulking with elastomeric PU.
- Moving cracks (> 10% thermal movement): V-routed 1:1 reservoir with backer rod
- Static hairline cracks (< 2 mm): Deep penetration gravity feed with SL-100
- Prevents rebar oxidation and structural spalling from deicing salts
Low-Viscosity Gravity Penetration
Self-leveling low-viscosity polyurethane flows under gravity into fine concrete fissures, displacing air voids and establishing micro-mechanical interlock with unprimed concrete walls.
- Deep 30–50 mm gravity penetration without expensive injection port machinery
- Self-smoothing mirror finish eliminates grinding and tooling labor
- High elongation (≥ 800%) absorbs future ground settling without adhesive tearing
Standardized Routing & Caulking SOP
Ensures durable repair: 1. V-groove diamond routing (10×10 mm) → 2. Dust extraction → 3. Polyethylene bond breaker tape → 4. SL-100 injection → 5. 24-hr traffic return.
- Consistent reservoir geometry guarantees calculated movement tolerance
- Zero primer needed: direct adhesion to dry or slightly damp cured concrete
- Resistant to motor oils, hydraulic fluids, and battery acid splashes
Heavy Wheel Traffic Durability
Repaired joints and cracks withstand constant solid polyurethane forklift wheels, heavy pallet jacks, and heavy vehicle traffic in 24/7 high-bay logistics warehouses.
- Shore A 38–42 balanced hardness prevents wheel point deflection while protecting edges
- Zero concave sagging ensures smooth forklift transition without driver jolt
- USDA / FDA compliant for food distribution and pharmaceutical storage facilities
Planning a Commercial Floor or Warehouse Crack Repair Project?
Submit your floor area and crack linear meter requirements for an instant chemical quantity calculation and factory direct quote.
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