Document concrete core sampling, lab results and engineering decisions — a clear record of the decision process when strength is low.
A sample result came back low, so you took cores. Result: 26.5 MPa. Is that enough for C30? Strengthen or demolish? The whole process is on record — documents ready for the inspection firm and the municipality.
Undocumented coring invites penalties from the inspection firm, and missing core records create liability in any legal dispute. A complete record gives you full legal protection.
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