BS en 12390-8-2019-Depth of Penetration of Water Under Pressure

 

BS EN 12390-8:2019

BSI Standards Publication

Testing hardened concrete Part 8: Depth of penetration of water under pressure

 

BRITISH STANDARD

BS EN 12390-8:2019

National foreword This British Standard is the UK implementation of EN 12390-8:2019. It supersedes BS EN 12390-8:2009, 12390-8:2009, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee Committ ee B/517 B/517/1, /1, Concrete production and a nd testing. test ing. A list of organizations represented on this committee can be obtained on request to its secretar y. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. © The British Standards Institution 2019 Published by BSI Standards Limited 2019 ISBN 978 0 580 98435 98 435 8 ICS 91.100.30 Compliance with a British Standard c annot confer immunity from Compliance legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2019.  Amendments/corrigenda issued since si nce publication Date

Tex t af fected

 

BS EN 12390-8:2019

EN 12390-8  12390-8 

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM 

June 2019 

ICS 91.100.30

Supersedes EN 12390-8:2009

English Version

Testing hardened concrete - Part 8: Depth of penetration of water under pressure Essais pour béton durci - Partie 8 : Profondeur de pénétration d'eau sous pression

Prüfung von Festbeton - Teil 8: Wassereindringtiefe unter Druck

This European Standard was approved by CEN on 29 April 2019. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national n ational standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

 

EUROPEAN COMMITTEE FOR STANDARDIZATION STANDARDIZATION C O M I TÉ EU R O P ÉEN D E N O R M AL I SATI O N EU R O P ÄI SC H ES K O M I TE E F Ü R N O R M U N G CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 B Brussels russels

© 2019 CEN

All rights rights of exploitation in any form and by any means reserved reserved worldwide for CEN national Members.

Ref. No. EN 12390-8:2019 E

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

Contents

Page

European foreword....................................................................................................................................................... .......................................................................... ............................................................................. 3   1

Scope ............................................................................. ................................................................................................................................................................... ........................................................................................ 5 

2

Normative references .................................................................................................................................... .............................................................................. ...................................................... 5 

3

Terms and definitions ............................................................................ ................................................................................................................................... ....................................................... 5 

4

Principle ................................................................................ ............................................................................................................................................................. ............................................................................. 5 

5

Apparatus........................................................................................................................................................... ............................................................................ ............................................................................... 5 

6

Specimen ............................................................................. ............................................................................................................................................................ ............................................................................... 6 

7 7.1 7.2 7.3

Procedure......................................................................................................... Procedure........................................................................................................................................................... .................................................. 7  Preparation of the test specimen .......................................................................... .............................................................................................................. .................................... 7  Application of water pressure .................................................................................. .................................................................................................................... .................................. 7  Examination of specimen .............................................................................. ............................................................................................................................. ............................................... 7 

8

Test result ....................................................................................... .......................................................................................................................................................... ................................................................... 7 

9 10

Test report ......................................................................................................................................................... ..................................................................................... .................................................................... 7 Precision ............................................................................................................................................................. ............................................................................. ................................................................................ 8

2

 

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

European foreword This document (EN 12390-8:2019) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, the secretariat of which is held by SN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2019, and conflicting national standards shall be withdrawn at the latest by December 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12390-8:2009. 12390-8:2009. The standard has been restricted to tests on specimens cured in water. This standard is one of a series on testing concrete. EN 12390, Testing hardened concrete, consists of the following parts: — Part 1: Shape, dimensions and other requirements of specimens and moulds;   — Part 2:Making and curing specimens for strength tests;  — Part 3: Compressive strength of test specimens;   — Part 4:Compressive strength – Specification for testing machines;  — Part 5: Flexural strength of test specimens;   — Part 6: Tensile splitting strength of test specimens;   — Part 7: Density of hardened concrete;  — Part 8: Depth of penetration of water under pressure;  chl oride resistance of concrete, unidirectional diffusion;  — Part 11: Determination of the chloride

— Part 12: Determination of the potential carbonation resistance of concrete: Accelerated carbonation method (in preparation);  — Part 13: Determination of secant modulus of elasticity in compression;  co ncrete during its — Part 14: Semi-adiabatic method for the determination of heat released by concrete hardening process;

— Part 15: Adiabatic method for the determination of heat released by concrete during its hardening  process;  — Part 16: Determination of the shrinkage of concrete (in preparation); preparation);  — Part 17: Determination of creep of concrete in compression compression (in preparation); 

3

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

— Part 18: Determination of the chloride chl oride migration coefficient (in preparation).  This edition includes the following significant technical changes with respect to EN E N 12390 8:2009: — editorial revision. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

4

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

1  Scope This document specifies a method for determining the depth of penetration of water under pressure in hardened concrete which has been water cured.

2  Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12390-2, 12390-2, Testing hardened concrete — Part 2: Making and curing specimens for strength tests 

3  Terms and definitions No terms and definitions are listed in i n this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at  http://www.electropedia.org/ http://www.electropedia.org/ — ISO Online browsing platform: available at  http://www.iso.org/obp http://www.iso.org/obp

4  Principle

Water is applied under pressure to the surface of hardened concrete. The specimen is then split and the depth of penetration of the waterfront is measured.

5   Apparatus The test specimen, of given dimensions, shall be placed in i n any suitable equipment in such a manner that the water pressure can act on the test area and the pressure applied can be continuously indicated. An example of a test arrangement is shown in Figure 1. It is preferable that the apparatus should allow the other surfaces of the test specimen to be observed. The water pressure may be applied to the surface of the test specimen either from the bottom, or the top. A watertight seal shall sh all be provided, made of rubber or other similar material. The dimensions of a test area shall be approximately half of the length of the edge or diameter of the test surface.

5

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

Dimensions in millimetres

Key 1 packing piece 2 sealing ring 3 screwed on plate 4 screw-threaded rod 5 water under pressure 6 screwed on plate

Figure 1 — Example of test arrangement

6  Specimen The specimen shall be cubic, cylindrical or prismatic with the minimum dimension of the surface of the specimen to be tested not less than 150 mm and no other dimension less than 100 mm.

6

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

Smaller specimens can be tested. Their dimensions and test area shall be reported. Core specimens shall be at least 95 mm in diameter.

7  Procedure 7.1 Preparation of the test specimen Immediately after the de-moulded, roughen surface to be exposed to water pressure, with a wire brush andspecimen cure the isspecimen under water the in accordance with the procedures given in EN 12390-2. 12390-2.

7.2  Application  Application of water pressure The test shall be started when the t he specimen is at least 28 days old. Do not apply the water pressure to a trowelled surface of a specimen. Place the specimen in the apparatus and apply a water pressure of (500 ± 50) kPa for (72 ± 2) 2) h. During the test, periodically observe the appearance of the surfaces of the test specimen not exposed to the water pressure to note the presence of water. If leakage is observed then consider the validity of the th e result and record the fact. NOTE

Tap water can be used.

7.3 Examination of specimen After has been applied for thewas specified time, removeexcess the specimen fromthe thespecimen apparatus. Wipe the the pressure face on which the water pressure applied to remove water. Split in half, perpendicularly to the face on which the water pressure was applied. When splitting the specimen, and during the examination, place the face of the specimen exposed to the water pressure on the bottom. As soon as the split face has dried to such an extent that the water penetration front can be clearly seen, mark the water front on the specimen. Measure the maximum depth of penetration under the test area and record it to the nearest mm.

8  Test result The maximum depth of penetration, expressed in mm, is the test result.

9  Test report The report shall include: i nclude: a)

reference to this standard;

b) identification of the test specimen; c)

date of start of the test;

d) description of the specimen (shape and dimensions); e)

direction o off application application of water pressure pressure with respect respect to the casting direction;

f)

maximum depth of penetration, in mm;

g)

any leakag leakage e and consideration of the validity of the result; (if appropriate); appropriate);

h) any deviation from the standard test method;

7

 

BS EN 12390-8:2019

EN 12390-8:2019 (E)

i)

a declaration declaration by the person technically responsible responsible for for the test that it was carried carried out out in accordance with this document, except as noted in item h);

j)

age of specimen at time of test (if known).

10  Precision There is no precision data available.

8

 

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