SIST EN 1367-4:2008
(Main)Tests for thermal and weathering properties of aggregates - Part 4: Determination of drying shrinkage
Tests for thermal and weathering properties of aggregates - Part 4: Determination of drying shrinkage
This standard describes the reference method used for type testing and in cases of dispute, for determining the effect of aggregates on the drying shrinkage of concrete. For other purposes, in particular factory production control, other methods may be used provided an appropriate working relationship with the reference method has been established.
This standard is based on the testing of concretes of fixed mix proportions and aggregates of 20 mm maximum size.
NOTE 1 Guidance on the use of larger size is given in Annex A. Precision data is not available for variations in size and for variations in the water content of the test concrete.
NOTE 2 In those cases where the drying shrinkage of a source of coarse aggregate only or a source of fine aggregate (sand) only are required, the other component to be used should be, respectively, a fine or coarse aggregate of known low shrinkage.
NOTE 3 Aggregates with high water demand and/or porosity may in a concrete with a fixed water content result in a mix with insufficient workability to allow full compaction of the test specimens. This is likely to occur with aggregates combinations having a composite water absorption value greater than 3,5% or oven-dried particle densities less than 2,45 Mg/m³ (e.g. for recycled aggregates). In such instances a variation of the method (without precision data) may be carried out by one of the following changes to the concrete mix:
(a) use of aggregates in the saturated and surface dry condition.
(b) use of water-reducing admixture.
A note on the details of any modification to the mix design should be included with the test report.
Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 4: Bestimmung der Trockenschwindung
Diese Norm beschreibt das Bezugsverfahren für die Erstprüfung und in Streitfällen für die Bestimmung des
Einflusses von Gesteinskörnungen auf die Trockenschwindung von Beton. Für andere Zwecke, insbesondere
für die werkseigene Produktionskontrolle, dürfen andere Verfahren verwendet werden, falls ein ausreichender
Zusammenhang mit dem Bezugsverfahren nachgewiesen wurde.
Die vorliegende Norm beruht auf der Prüfung von Beton mit festem Mischungsverhältnis und
Gesteinskörnungen von höchstens 20 mm Korngröße.
ANMERKUNG 1 Hinweise zur Verwendung von Überkorngrößen werden im Anhang A gegeben. Präzisionsdaten für
Abweichungen der Korngröße und für Änderungen des Wassergehaltes im Prüfbeton stehen nicht zur Verfügung.
ANMERKUNG 2 In den Fällen, wo die Bestimmung der Trockenschwindung nur für eine Sorte einer groben
Gesteinskörnung oder nur einer Sorte einer feinen Gesteinskörnung (Sand) erforderlich ist, sollte der andere zu
verwendende Bestandteil eine feine oder grobe Gesteinskörnung bekannter geringer Trockenschwindung sein.
ANMERKUNG 3 Gesteinskörnungen mit hohem Wasserbedarf und/oder Porosität können in einem Beton mit einem
festen Wassergehalt zu einer Mischung mit einer unzureichenden Verarbeitbarkeit bezüglich einer vollständigen
Verdichtung der Probekörper führen. Dies geschieht wahrscheinlich bei Gesteinskörnungen mit einem
zusammengesetzten Wasserabsorptionswert von über 3,5 % oder ofentrockenen Teilchendichten geringer als 2,45 Mg/m3
(z. B. bei rezyklierten Gesteinskörnungen). In diesen Fällen darf eine Abänderung des Verfahrens (ohne Präzisionsdaten)
durch eine der folgenden Änderungen an der Betonmischung erfolgen:
a) Verwendung der Gesteinskörnung in gesättigtem und oberflächentrockenem Zustand;
b) Verwendung eines Betonverflüssigers.
Im Prüfbericht sollte eine Anmerkung mit den Einzelheiten jeder Änderung an der Mischung enthalten sein.
Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 4: Determination du retrait au séchage
La présente norme décrit la méthode de référence utilisée pour les essais de type et, en cas de conflit, pour la détermination de l’effet des granulats sur le retrait au séchage du béton. Pour d'autres objectifs, en particulier dans le cadre du contrôle de la production en usine, d'autres méthodes peuvent être employées si une corrélation appropriée avec la méthode de référence a été établie.
Cette norme est fondée sur des essais de béton de composition définie avec des granulats de 20 mm maximum de dimensions.
NOTE 1 L’Annexe A donne des indications sur l’utilisation de granulats de dimensions supérieures. Les données relatives à la fidélité de l’essai ne sont pas disponibles pour les variations de tailles et pour les variations de la teneur en eau du béton d'essai.
NOTE 2 Lorsqu’il est nécessaire de déterminer le retrait au séchage uniquement pour un gravillon ou uniquement pour un sable, il convient que l’autre composant à utiliser soit, respectivement, un sable ou un gravillon de faible retrait connu.
NOTE 3 Des granulats avec une forte demande en eau et/ou une forte porosité peuvent, dans le béton, avec une quantité d’eau définie donner un mélange d’ouvrabilité insuffisante pour permettre le compactage des éprouvettes. Cela peut se produire avec des combinaisons de granulats avec un coefficient d’absorption d’eau supérieur à 3,5 % ou des masses volumiques réelles séchées en étuve inférieures à 2,45 Mg/m3 (par exemple s’agissant de granulats recyclés). Dans de tels cas, on peut faire varier la méthode (sans données de fidélité) en apportant l’une des modifications suivantes au mélange de béton :
a) utilisation de granulats saturés en eau et superficiellement secs ;
b) utilisation d’un adjuvant réducteur d’eau.
Il convient d’inclure dans le rapport d’essai, une note donnant les détails des modifications de la méthode de conception du mélange.
Preskusi lastnosti agregatov zaradi termičnih in vremenskih vplivov - 4. del: Določevanje krčenja pri sušenju
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1367-4:2008
01-september-2008
1DGRPHãþD
SIST EN 1367-4:1999
3UHVNXVLODVWQRVWLDJUHJDWRY]DUDGLWHUPLþQLKLQYUHPHQVNLKYSOLYRYGHO
'RORþHYDQMHNUþHQMDSULVXãHQMX
Tests for thermal and weathering properties of aggregates - Part 4: Determination of
drying shrinkage
Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von
Gesteinskörnungen - Teil 4: Bestimmung der Trockenschwindung
Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 4:
Determination du retrait au séchage
Ta slovenski standard je istoveten z: EN 1367-4:2008
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
SIST EN 1367-4:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 1367-4:2008
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SIST EN 1367-4:2008
EUROPEAN STANDARD
EN 1367-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 91.100.15 Supersedes EN 1367-4:1998
English Version
Tests for thermal and weathering properties of aggregates - Part
4: Determination of drying shrinkage
Essais pour déterminer les propriétés thermiques et Prüfverfahren für thermische Eigenschaften und
l'altérabilité des granulats - Partie 4: Determination du Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 4:
retrait au séchage Bestimmung der Trockenschwindung
This European Standard was approved by CEN on 4 February 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1367-4:2008: E
worldwide for CEN national Members.
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SIST EN 1367-4:2008
EN 1367-4:2008 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle.5
5 Sampling.5
6 Apparatus .5
7 Materials .6
8 Preparation of test subsamples .6
9 Preparation of test prisms .7
10 Procedure .10
11 Calculation and expression of results .10
12 Test report .11
Annex A (informative) Conditions of larger aggregate size .12
Annex B (informative) Precision .13
Bibliography .14
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SIST EN 1367-4:2008
EN 1367-4:2008 (E)
Foreword
This document (EN 1367-4:2008) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the
secretariat of which is held by BSI.
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 September 2008, and conflicting national standards shall be
withdrawn at the latest by September 2008.
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 EN 1367-4:1998.
Testing in accordance with this standard is intended to provide information to assist in judging the performance
of aggregates subject to weathering action. This standard is intended to identify aggregates with high moisture
sensitivity which in concrete may cause excessive cracking, deflection and loss of durability. This test may not be
suitable for lightweight aggregates.
This European Standard is one of a series of tests for thermal and weathering properties of aggregates as listed
below.
EN 1367-1, Tests for thermal and weathering properties of aggregates - Part 1: Determination of resistance to
freezing and thawing
EN 1367-2, Tests for thermal and weathering properties of aggregates - Part 2: Magnesium sulfate test
EN 1367-3, Tests for thermal and weathering properties of aggregates - Part 3: Boiling test for "Sonnenbrand
basalt"
EN 1367-5, Tests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to
thermal shock
Test methods for other properties of aggregates will be covered by Parts of the following European Standards:
EN 932, Tests for general properties of aggregates
EN 933, Tests for geometrical properties of aggregates
EN 1097, Tests for mechanical and physical properties of aggregates
EN 1744, Tests for chemical properties of aggregates
EN 13179, Tests for filler aggregate used in bituminous mixtures
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
3
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SIST EN 1367-4:2008
EN 1367-4:2008 (E)
1 Scope
This standard describes the reference method used for type testing and in cases of dispute, for determining the
effect of aggregates on the drying shrinkage of concrete. For other purposes, in particular factory production
control, other methods may be used provided an appropriate working relationship with the reference method has
been established.
This standard is based on the testing of concretes of fixed mix proportions and aggregates of 20 mm maximum
size.
NOTE 1 Guidance on the use of larger size is given in Annex A. Precision data is not available for variations in size and for
variations in the water content of the test concrete.
NOTE 2 In those cases where the drying shrinkage of a source of coarse aggregate only or a source of fine aggregate
(sand) only are required, the other component to be used should be, respectively, a fine or coarse aggregate of known low
shrinkage.
NOTE 3 Aggregates with high water demand and/or porosity may in a concrete with a fixed water content result in a mix
with insufficient workability to allow full compaction of the test specimens. This is likely to occur with aggregates combinations
having a composite water absorption value greater than 3,5% or oven-dried particle densities less than 2,45 Mg/m³ (e.g. for
recycled aggregates). In such instances a variation of the method (without precision data) may be carried out by one of the
following changes to the concrete mix:
(a) use of aggregates in the saturated and surface dry condition.
(b) use of water-reducing admixture.
A note on the details of any modification to the mix design should be included with the test report.
2 Normative references
The following referenced documents are indispensable for the application 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 197-1 Cement - Part 1: Composition, specifications and conformity criteria for common cements
EN 932-1, Tests for general properties of aggregates - Part 1: Methods for sampling
EN 932-2, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory samples
EN 932-5, Tests for general properties of aggregates - Part 5: Common equipment and calibration
EN 933-2, Tests for geometrical properties of aggregates - Part 2: Determination of particle size distribution -
Test sieves, nominal size of apertures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
laboratory sample
sample intended for laboratory testing
NOTE The laboratory sample is generally the penultimate stage in a multi-stage sampling procedure.
4
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SIST EN 1367-4:2008
EN 1367-4:2008 (E)
3.2
subsample
sample obtained from sampling increments or a bulk sample by means of a sample reduction procedure
3.3
test portion
sample used as a whole in a single test
4 Principle
The aggregate under test is mixed with cement and water and cast into prisms of specified dimensions. The
prisms are subjected to wetting followed by drying at (110 ± 5) °C and the change in length from the wet to the
dry state is determined. The excess drying shrinkage of the concrete is attributed to the aggregate, and is
expressed as the average change in length of the prisms, as a percentage of their final dry lengths.
5 Sampling
The laboratory sample to be used for the test shall be taken in accordance with EN 932-1.
6 Apparatus
Unless otherwise stated, all apparatus shall conform to the general requirements of EN 932-5.
6.1 Sample divider, of size appropriate to the maximum particle size to be handled or, alternatively, a flat
shovel and a clean, hard horizontal surface, e.g. a metal tray for use in quartering.
6.2 Test sieves, conforming to EN 933-2, appropriate to the sizes of aggregate to be tested.
6.3 Balance, of minimum capacity 5 kg and minimum accuracy of 0,1 %.
6.4 Single or gang moulds, suitable for casting three concrete prisms of dimensions (200 ± 2) mm x (50 ± 2)
mm x (
...
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