Concrete Repair & Substrate Preparation

Specification-grade substrate engineering — moisture suppression, ICRI CSP profile preparation, and concrete repair before any coating system commits.

What is Concrete Repair & Substrate Preparation?

Concrete repair and substrate preparation is the foundational engineering discipline that determines whether a floor coating system performs for years or fails within months. Before any epoxy, polyurethane, or MMA resin system can commit to a concrete slab, the substrate must be mechanically sound, chemically compatible, moisture-suppressed, and profiled to the correct ICRI Concrete Surface Profile (CSP) rating. Without this groundwork, adhesion fails, delamination follows, and the total cost of remediation far exceeds the cost of specification-grade preparation.

Architects, engineers, and facilities managers across Ghana’s institutional and industrial sectors specify this service at project inception — not as an afterthought. Tier-1 banks commissioning trading-floor coatings, pharmaceutical manufacturers bound by GMP cleanliness standards, and hospitality groups fitting premium public-area finishes all share one requirement: a substrate that the coating specification can rely upon without compromise.

When to Specify This Service

Any facility where floor failure carries operational, safety, or reputational consequence should specify substrate preparation as a standalone line item in the project schedule. This includes pharmaceutical and food-processing plants where contamination risk from a delaminating floor is a regulatory matter, logistics warehouses where heavy forklift traffic tests slab integrity daily, and hospital environments where seamless, hygienic coatings are non-negotiable.

New-build concrete slabs typically require a minimum 28-day cure before coating — and often present laitance, surface porosity, or residual form-release compounds that demand mechanical correction. Refurbishment projects introduce additional complexity: legacy coatings, carbonation, oil contamination, and chloride-induced rebar corrosion each require a defined remediation protocol before any new system is specified.

Methodology — The Epoxy Flooring Ghana Specialist Approach

Specification Review & Diagnostic Survey. Our specialists review the structural engineer’s drawings and coating specification, then conduct an on-site diagnostic assessment — surface hardness testing, pull-off adhesion checks, and moisture vapour emission rate (MVER) measurement using calibrated ASTM F1869 calcium chloride or F2170 in-situ probe methodology.
Defect Mapping & Repair Scheduling. Cracked, spalled, and delaminated areas are mapped and categorised by ICRI Technical Guideline 310.2R severity class. Repair mortars and structural fillers are selected to match or exceed the compressive strength of the host concrete.
Mechanical Surface Preparation. Diamond grinding or captive shot-blasting equipment is deployed to achieve the specified ICRI CSP profile — typically CSP 3 to CSP 5 for industrial epoxy systems — while dust-controlled extraction protects the live facility environment.
Moisture Suppression & Primer Application. Where MVER readings exceed coating manufacturer thresholds, a moisture-suppressing epoxy primer (typically tested to BS 8203 and ASTM D4541) is applied to seal vapour transmission before the build-coat programme begins.
Quality Sign-Off & Hand-Over Documentation. Pull-off adhesion tests are repeated on prepared surfaces to confirm bond values meet or exceed specification. All results are logged in a substrate preparation certificate issued to the client before coating works commence.

Materials & Standards

Cementitious repair mortars — compressive strength ≥ 40 MPa, compatible with EN 1504-3 structural repair classification
Epoxy crack injection resins — low-viscosity polyurethane and epoxy grouts to ICRI 310.3 protocol
Moisture-suppressing epoxy primers — tested to ASTM D4541 pull-off and BS 8203 moisture tolerance thresholds
Surface profile verification — ICRI CSP comparator chips (CSP 1–9 range), project-specific CSP specified at tender
Shot-blasting and diamond-grinding equipment — captive, dust-controlled; compliant with Ghana EPA site dust-management requirements
T3GA Gold-recognised practice — Specialist Epoxy Flooring, Cert ID T3G-2002-793668 (Consumers Voice Ghana)

Outcomes & Guarantees

A correctly prepared substrate is the single greatest determinant of floor coating longevity. Clients commissioning Epoxy Flooring Ghana substrate preparation receive a documented hand-over certificate confirming ICRI CSP profile achieved, adhesion test results, and MVER compliance. Coating systems installed over our prepared substrates are backed by tiered performance warranties: Local Standard — 5 years, ISO-Specified Systems — 7 years, Heavy Industrial & Pharmaceutical — 10 years.

Substrate preparation underpins every coating system in our portfolio. Explore related services: Industrial Epoxy Flooring, Pharmaceutical & Cleanroom Flooring, and Warehouse Floor Coatings.