This document:

— gives methods and procedures for the estimation of the in situ compressive strength and characteristic in situ compressive strength of concrete in structures and precast concrete components using direct methods (core testing) and indirect methods, e.g. ultra-sonic pulse velocity, rebound number;

NOTE To align with the design standard EN 1992-1-1, where the compressive strength is based on 2:1 cylinders, the in situ compressive strength is based in 2:1 cores of diameter ≥ 75 mm.

— provides principles and guidance for establishing the relationships between test results from indirect test methods and the in situ compressive strength;

— provides procedures and guidance for assessing the conformity with the compressive strength class of concrete supplied to structures under construction where standard tests indicate doubt or where the quality of execution is in doubt.

Cross References:
EN 12504-2
EN 12504-1
EN 13670
EN 12390-2
EN 12390-3
EN 12350-1
EN 12504-4
EN 1990:2002
EN 206:2013+A1:2016
EN 13369:2018
EN 1992-1-1:2004
CEN/TR 17086
ISO/IEC 17025
EN 12390-7
EN 1998-3


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