1.1 This method describes the procedures for the extraction, preparation and testing of: (a) cylindrical specimens extracted from hardened concrete for length or compressive strength determinations (b) jois s extracted from hardened concrete for compression resis ance determinations flexion.
NORVEN 76-49-1966 history
1966NORVEN 76-49-1966 Extraction methods and testing methods for high-strength concrete columns and beam columns