l.1 This method describes the procedures for the preparation, curing and testing of cylindrical concrete specimens. The resis ance values obtained based on concrete specimens, in addition to being an index of the resis ance of the tested material, must serve as a control criterion for the uniformity of quality of the manufactured material.
NORVEN 76-42-1966 history
1966NORVEN 76-42-1966 Test methods and hardening methods for concrete cylindrical pipes