Grouting & Repair
Grouting and structural repair restores the strength, watertightness, and load-bearing integrity of damaged or aging concrete. POLYZEN delivers each repair as an engineered applied system — diagnosing the root cause, injecting or rebuilding the affected zone, and sealing it against recurrence — for industrial, commercial, and infrastructure structures.
How a POLYZEN repair is built
Diagnosis & Investigation
Cracks, voids, and movement are mapped; the root cause — load, settlement, water, or corrosion — is identified before any repair begins.
Surface & Joint Preparation
Cracks are routed, joints cleaned, and delaminated concrete cut back to a sound substrate.
Injection / Grouting
Low- or high-pressure injection fills cracks and voids; flowable grout re-establishes contact under bearings and base plates.
Structural Rebuilding
Spalled or corroded sections are rebuilt with engineered repair mortars to restore the original profile and cover.
Joint Sealing & Movement Control
Expansion and construction joints are sealed with flexible systems that accommodate movement and block water ingress.
Curing & Verification
Controlled cure, inspection, and load or leak verification before return to service.
Grouting & repair systems
Epoxy Injection Grouting
Pressure-injected resin that fills and structurally bonds cracks from within.
Port placement → low-pressure resin injection → structural crack bond
Structural Repair
Rebuilds spalled, cracked, or corroded concrete to its original strength.
Cut-back → reinforcement treatment → engineered repair mortar → reprofile
Expansion Joint Sealing
Flexible, watertight joints that move with the structure without cracking.
Clean & backer rod → flexible sealant → movement-tolerant finish
Crack Injection
Seals active or dormant cracks against water and further propagation.
Surface seal → port injection → resin / PU fill → cure
Which repair do you need?
Sectors we serve
Frequently asked questions
What is grouting and structural repair?
An engineered system that restores damaged concrete — filling cracks and voids, rebuilding lost sections, and sealing joints to recover strength, watertightness, and durability.
How are concrete cracks repaired?
Through pressure injection of resin or polyurethane that fills the crack from within, either structurally bonding it or sealing it against water, depending on the cause.
What is the difference between epoxy injection and crack injection?
Epoxy injection grouting structurally re-bonds a load-bearing crack, while crack injection focuses on sealing cracks against water ingress and stopping further propagation.
Can structural repair restore load-bearing capacity?
Yes — spalled or corroded concrete is cut back, reinforcement is treated, and engineered repair mortars rebuild the section to restore its original profile and strength.
How are expansion joints sealed?
Joints are cleaned, fitted with backer rod, and sealed with flexible systems that accommodate structural movement while blocking water and debris.
Does POLYZEN diagnose the cause before repair?
Yes — every repair starts with diagnosis and investigation to identify the root cause, so the fix addresses the problem rather than just the symptom.
Ready to restore your structure?
Tell us the structure, the damage, and the conditions — we'll engineer the right repair system.