The safest way to “accept” an epoxy crack injection repair is to (1) confirm the objective (structural bonding vs. water-stopping), (2) require basic documentation (materials + process notes + photos), and (3) verify the injection logic (progression, coverage, and re-check of endpoints). For critical structural situations, define a verification method in writing (sampling/third-party testing).
Before you inspect: is epoxy the right solution?
Ask the contractor to state the goal: structural bonding, water-stopping, or both. Epoxy is commonly used for structural bonding of cracks; if the main issue is active leakage under pressure, other systems (often polyurethane water-stop methods and/or drainage) may be more appropriate depending on conditions.
Field acceptance checklist (printable)
A) Documentation
Crack location map (photos with markings), date/crew, product name (and batch/expiry if available), basic process notes (port spacing, sequence, pressure method), and completion photos.
B) Pre-conditions
Surface was clean and sound; any active water was addressed; crack location near critical joints/corners was evaluated appropriately.
C) Visual quality
Continuous surface sealing; ports spaced consistently; no obvious unfilled segments.
D) Verification logic (what “good” usually looks like)
Progression from one port to the next (indicating the crack segment is filling), reasonable material usage for the crack size, and careful re-check at intersections/corners/endpoints.
E) Red flags
Active leakage during epoxy injection without a mitigation plan; no records at all; clearly moving crack with no explanation; widespread seal failure.
ACST can perform a no‑obligation inspection and provide a written scope that includes the objective, method, and a practical acceptance/verification plan—so you’re not guessing.
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