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EVS-EN 12390-13:2021 Kivistunud betooni katsetamine. Osa 13, Lõikajadeformatsioonimooduli määramine survekoormusel = Testing hardened concrete. Part 13, Determination of secant modulus of elasticity in compression
Eesti Standardimis- ja Akrediteerimiskeskus, Eesti Betooniühing