BS EN 12504-2:2021

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Testing concrete in structures – Non-destructive testing. Determination of rebound number

Published By	Publication Date	Number of Pages
BSI	2021	18

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Categories: 91.100.30 - Concrete and concrete products, BSI

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Description

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.

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PDF Pages	PDF Title
2	National foreword
5	European foreword
6	1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus 5.1 Rebound hammer 5.2 Reference anvil
7	5.3 Abrasive stone 6 Test location 6.1 Selection 6.2 Preparation 7 Procedure 7.1 Preliminary preparation
8	7.2 Operations 7.3 Reference checking 8 Test result 9 Test report
9	10 Precision
10	Bibliography
11	National Annex NA (informative) Guidance on the application of surface hardness testing by rebound hammer

Additional information

Status	Definitive
Pages	18
Publication Date	2021-07-29
ISBN	978 0 539 05349 4
Standard Number	BS EN 12504-2:2021
Title	Testing concrete in structures – Non-destructive testing. Determination of rebound number
Identical National Standard Of	EN 12504-2
Replaces	BS EN 12504-2:2012
Descriptors	Hand-hammers, Quality control, Hardness testing, Construction systems parts, Structures, Cement and concrete technology, Strength of materials, Hardness testers, Non-destructive testing, Mechanical testing, Concretes, Surface properties
Publisher	BSI
Committee	B/517/1
ICS Codes	91.100.30 - Concrete and concrete products

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BS EN 12504-2:2021

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