CEN/TS 12390-9:2016
(Main)Testing hardened concrete - Part 9: Freeze-thaw resistance with de-icing salts - Scaling
Testing hardened concrete - Part 9: Freeze-thaw resistance with de-icing salts - Scaling
This Technical Specification describes the testing of the freeze-thaw scaling resistance of concrete both with water and with sodium chloride solution. It can be used either to compare new constituents or new concrete compositions against a constituent or a concrete composition that is known to give adequate performance in the local environment or to assess the test results against some absolute numerical values based on local experiences.
Extrapolation of test results to assess different concretes, i.e. new constituents or new concrete compositions, requires an expert evaluation.
NOTE In some cases the test methods may not be suitable for testing special concretes e.g. high strength concrete or permeable concrete. In these cases the result needs to be treated with caution. Also, the testing methods included in this document may not identify aggregates that are subject to occasional ‘pop-outs’.
There is no established correlation between the results obtained by the three test methods. All tests will clearly identify poor and good behaviour, but they differ in their assessment of marginal behaviour. The application of different acceptance limits for test results enables assessment for different degrees of exposure severity. Change of parameters of the testing procedure may have artefacts, some of which explained in Annex A.
Prüfung von Festbeton - Teil 9: Frost- und Frost-Tausalz-Widerstand - Abwitterung
Diese Technische Spezifikation beschreibt die Prüfung der Abwitterungsbeständigkeit von Beton unter Einwirkung von Frost-Tau-Wechseln mit Wasser bzw. mit Natriumchloridlösung. Sie kann angewendet werden, um entweder neue Ausgangsstoffe oder neue Betonzusammensetzungen mit bekannten Ausgangsstoffen oder Betonzusammensetzungen, mit denen in der örtlichen Umgebung ein ausreichendes Verhalten sichergestellt wird, zu vergleichen oder um die Prüfergebnisse mit Grenzwerten, die auf örtlichen Erfahrungen basieren, zu vergleichen und zu beurteilen.
Die Extrapolation der Prüfergebnisse zur Beurteilung verschiedener Betonarten, d. h. neue Ausgangsstoffe oder neue Betonzusammensetzungen, erfordert die Bewertung durch einen Sachverständigen.
ANMERKUNG In einigen Fällen kann es vorkommen, dass die Prüfverfahren zur Prüfung besonderer Betonarten, z. B. hochfester Beton oder durchlässiger Beton, nicht geeignet sind. In diesen Fällen sind die Ergebnisse mit Vorsicht zu behandeln. Ferner geben die in diesem Dokument beschriebenen Prüfverfahren unter Umständen keinen Hinweis auf Schäden — so genannte „Pop-outs“ —, die gelegentlich durch das Abplatzen von oberflächennahen Gesteinskörnungen entstehen.
Es gibt keine feststehende Korrelation zwischen den Ergebnissen aus den drei Prüfverfahren. Alle Prüfverfahren ermöglichen die deutliche Unterscheidung zwischen schlechtem und gutem Verhalten; sie unterscheiden sich jedoch in der Beurteilung des Verhaltens in Grenzfällen. Die Anwendung verschiedener Zulässigkeitsgrenzen für die Prüfergebnisse ermöglicht die Beurteilung für unterschiedliche Schweregrade des Angriffs. Im Falle einer gerechtfertigten Anpassung der Prüfparameter können Vorsichtsmaßnahmen bestehen. In Anhang A werden einige alternative Anwendungen beschrieben.
Essais sur béton durci - Partie 9: Résistance au gel dégel-dégel en présence de sels de déverglaçage (écaillage)
Preskušanje strjenega betona - 9. del: Odpornost proti zmrzovanju/tajanju s soljo za tajanje - Luščenje
Ta osnutek tehnične specifikacije opisuje preskušanje odpornosti betona na luščenje pri zmrzovanju ali tajanju z vodo in raztopino natrijevega klorida. Uporablja se lahko za primerjanje novih sestavnih elementov ali novih sestavov betona s sestavnimi elementi ali sestavom betona, ki dokazano dobro deluje v lokalnem okolju, ali za ocenjevanje rezultatov preskusa v primerjavi z nekaterimi absolutnimi številskimi vrednostmi na podlagi lokalnih izkušenj.
Pri ekstrapolaciji rezultatov preskusa za ocenjevanje različnih vrst betona, tj. novih sestavnih delov ali novih sestavov betona, je potrebna ocena strokovnjaka.
OPOMBA: V nekaterih primerih preskusne metode morda niso primerne za preskušanje posebnih vrst betona, npr. betona visoke trdnosti ali prepustnega betona. V teh primerih je treba rezultate previdno uporabljati. Poleg tega s preskusnimi metodami, vključenimi v tem dokumentu, morda ne bo mogoče prepoznati skupkov, ki so podvrženi občasnemu nabrekanju.
Med rezultati treh preskusnih metod ni vzpostavljena nobena korelacija. Vsi preskusi jasno prikažejo slabo in dobro obnašanje betona, vendar se razlikujejo pri oceni mejnega obnašanja. Uporaba različnih omejitev sprejemljivosti za rezultate preskusa omogoča ocenjevanje v okviru različnih stopenj izpostavljenosti. Pri spremembi parametrov preskusnega postopka se lahko pojavijo artefakti. Nekateri so obrazloženi v Dodatku A.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2017
1DGRPHãþD
SIST-TS CEN/TS 12390-9:2006
3UHVNXãDQMHVWUMHQHJDEHWRQD GHO 2GSRUQRVWSURWL]PU]RYDQMXWDMDQMXVVROMR
]DWDMDQMH/XãþHQMH
Testing hardened concrete - Part 9: Freeze-thaw resistance with de-icing salts - Scaling
Prüfung von Festbeton - Teil 9: Frost- und Frost-Tausalz-Widerstand - Abwitterung
Essais sur béton durci - Partie 9: Résistance au gel dégel-dégel en présence de sels de
déverglaçage (écaillage)
Ta slovenski standard je istoveten z: CEN/TS 12390-9:2016
ICS:
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TS 12390-9
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
December 2016
TECHNISCHE SPEZIFIKATION
ICS 91.100.30 Supersedes CEN/TS 12390-9:2006
English Version
Testing hardened concrete - Part 9: Freeze-thaw
resistance with de-icing salts - Scaling
Essais sur béton durci - Partie 9: Résistance au gel Prüfung von Festbeton - Teil 9: Frost- und Frost-
dégel-dégel en présence de sels de déverglaçage Tausalz-Widerstand - Abwitterung
(écaillage)
This Technical Specification (CEN/TS) was approved by CEN on 25 April 2016 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 12390-9:2016 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Making of test specimens . 6
5 Slab test (reference method) . 6
5.1 Principle . 6
5.2 Equipment . 6
5.3 Preparation of test specimens . 7
5.4 Test procedure . 10
5.5 Expression of results . 12
5.6 Test report . 12
6 Cube test (alternative method) . 13
6.1 Principle . 13
6.2 Equipment . 13
6.3 Preparation of test specimen . 15
6.4 Test procedure . 15
6.5 Expression of the results . 17
6.6 Test report . 18
7 CF/CDF-test (alternative method) . 19
7.1 Principle . 19
7.2 Equipment . 19
7.3 Preparation of test specimens . 21
7.4 Test procedure . 22
7.5 Expression of test results . 24
7.6 Test report . 24
8 Precision data . 25
Annex A (informative) Alternative applications . 27
Annex B (informative) Guideline for selection of brush . 30
B.1 General . 30
B.2 Construction data and characteristics of the brush . 30
B.2.1 Nature of the materials of hair, shore hardness, tip form . 30
B.2.2 Body dimensions . 30
B.2.3 Number of holes per brush, number of hairs per hole . 30
B.2.4 Shape. 31
B.2.5 Wear indicator (recommended, not mandatory) . 31
Bibliography . 32
European foreword
This document (CEN/TS 12390-9:2016) has been prepared by Technical Committee CEN/TC 51
“Cement and building limes”, the secretariat of which is held by NBN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes CEN/TS 12390-9:2006.
The following technical modifications have been made in this new edition:
— In Clause 2, the normative references have been updated;
— In Clauses 5, 6 and 7,(for all test methods), a prescription measuring the CO content of the air in
the storage room has been introduced;
— In Annex A, the alternative applications have been strictly specified;
— In Annex B, a technical specification has been introduced;
— In the Bibliography, the references have been updated.
EN 12390, Testing hardened concrete, is currently composed with the following parts:
— Part 1: Shape, dimensions and other requirements for 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;
— Part 9: Freeze-thaw resistance — Scaling — Complementary element [Technical Specification];
— Part 10: Determination of the relative carbonation resistance of concrete [Technical Specification];
— Part 11: Determination of the chloride resistance of concrete, unidirectional diffusion;
— Part 13: Determination of secant modulus of elasticity in compression.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: 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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Introduction
Concrete structures exposed to the effects of freezing and thawing need to be durable to have an
adequate resistance to this action and, in cases such as road construction, to freezing and thawing in the
presence of de-icing agents. It is desirable, especially in the case of new constituents or new concrete
compositions, to test for such properties. This also applies to concrete mixes, concrete products, precast
concrete, concrete members or concrete in situ.
There are two types of concrete deterioration when a freeze–thaw attack occurs, scaling and internal
structural damage. Test methods on internal structural damage are described in the CEN Technical
Report CEN/TR 15177, Testing the freeze-thaw resistance of concrete — Internal structural damage.
Many different test methods have been developed. No single test method can completely reproduce the
conditions in the field in all individual cases. Nevertheless, any method should at least correlate to the
practical situation and give consistent results. Such a test method may not be suitable for deciding
whether the resistance is adequate in a specific instance but will provide data of the resistance of the
concrete to freeze–thaw-attack and freeze–thaw-attack in the presence of de-icing agents.
If the concrete has inadequate resistance then the freeze–thaw attack can lead to two different types of
damage, namely to scaling (surface weathering) and to internal structural damage. This part of this
standard covers only testing for scaling resistance.
This Technical Specification has one reference method and two alternative methods. For routine testing
either the reference method or one of the two alternative methods may be used with the agreement of
the parties involved. In case of doubt, and if there is no such agreement, the reference method is used.
The testing methods may be used for comparative testing or for assessment against fixed acceptance
criteria. The application of limiting values will require the establishment of the correlation between
laboratory results and field experience. Due to the nature of the freeze–thaw action, such correlation
would have to be established in accordance with local conditions, reflected in the national application
documents.
1 Scope
This Technical Specification describes the testing of the freeze–thaw scaling resistance of concrete both
with water and with sodium chloride solution. It can be used either to compare new constituents or
new concrete compositions against a constituent or a concrete composition that is known to give
adequate performance in the local environment or to assess the test results against some absolute
numerical values based on local experiences.
Extrapolation of test results to assess different concretes, i.e. new constituents or new concrete
compositions, requires an expert evaluation.
NOTE In some cases the test methods may not be suitable for testing special concretes e.g. high strength
concrete or permeable concrete. In these cases the result needs to be treated with caution. Also, the testing
methods included in this document may not identify aggregates that are subject to occasion
...
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