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ILNAS-EN 12504-2:2021 Edition 07/2021
Testing concrete in structures - Part 2: Non-destructive testing - Determination of rebound number
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This document specifies a method for determining the rebound number of an area of hardened concrete using a spring-driven hammer. NOTE 1 The rebound number determined by this method can be used to assess the uniformity of concrete in situ, to delineate zones or areas of poor quality or deteriorated concrete in structures. NOTE 2 The test method is not intended as an alternative for the compressive strength determination of concrete (EN 12390-3), but with suitable correlation, it can provide an estimate of in situ compressive strength. For the assessment of in situ compressive strength, see EN 13791. NOTE 3 The hammer can be used for comparative testing, referenced against a concrete with known strength or against a concrete which has been shown that it has come from a defined volume of concrete with a population verified as conforming to a particular strength class.


Standard - Active


Technical Committee :
CEN/TC 104 : Concrete and related products


start of the vote on the project    12/09/2019   date of ratification (dor)    14/06/2021
end of the vote on the project    05/12/2019   date of anouncement (doa)    31/10/2021
start of the vote on the final project    18/03/2021   date of publication (dop)    31/01/2022
end of the vote on the final project    13/05/2021   date of withdrawal (dow)    31/01/2022

Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference Mémorial A N° 19


Relations to older standards
ILNAS-EN 12504-2:2012

International Classification for Standards (ICS codes) :

91.100.30 : Concrete and concrete products


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