Bituminous mixtures - Test methods - Part 45: Saturation Ageing Tensile Stiffness (SATS) conditioning test

This document specifies a test method to assess the durability of adhesion in base and binder course asphalt mixtures. The Saturation Ageing Tensile Stiffness (SATS) conditioning regime is used to age the specimens in the presence of water. A comparative test for assessing their performance before and after conditioning is also conducted.
The applicability of this test method is limited to bituminous specimens with consistent air voids contents and hard binder, in particular, to asphalt concrete mixtures with a binder content between 3,5 % and 5,5 %, air voids contents between 6 % and 10 % and 10/20 pen hard paving grade bitumen.
The test is intended to be used as a screening test for the assessment of a combination of aggregate, filler and additives with respect to the retained adhesion properties after simulated ageing in a moist atmosphere for lean/stiff base and binder course mixtures.

Asphalt - Prüfverfahren - Teil 45: Alterungsprüfung an gesättigten Asphalt-Probekörpern (SATS-Prüfung)

Dieses Dokument legt ein Prüfverfahren zur Bewertung der Dauerhaftigkeit des Verbunds in Asphaltgemischen für Trag- und Binderschichten fest. Das für die Alterungsprüfungen an gesättigten Probekörpern (en: Saturation Ageing Tensile Stiffness, SATS) festgelegte Klimatisierungsregime wird angewendet, um die Probekörper in Anwesenheit von Wasser zu altern. Eine Vergleichsprüfung für die Bewertung der Leistung der Probekörper vor und nach der Klimatisierung wird ebenfalls durchgeführt.
Die Anwendbarkeit dieses Prüfverfahrens ist auf bitumenhaltige Probekörper mit gleichbleibendem Hohlraumgehalt und hartem Bindemittel beschränkt, insbesondere auf Asphaltgemische mit einem Bindemittelgehalt zwischen 3,5 % und 5,5 %, einem Hohlraumgehalt zwischen 6 % und 10 % und aus Straßenbaubitumen mit einem Härtegrad von 10/20 pen.
Diese Prüfung ist als Auswahlprüfung für die Bewertung einer Kombination von Gesteinskörnungen, Füller und Zusatzmitteln im Hinblick auf die nach simulierter Alterung in einer feuchten Atmosphäre verblei¬benden Verbundeigenschaften von mageren/starren Mischgütern für Trag- und Binderschichten vorge¬sehen.

Mélanges bitumineux - Méthodes d'essai - Partie 45 : Essai de module en traction après saturation conditionnée (SATS)

Ce document spécifie une méthode d'essai permettant d'évaluer la durabilité de l'adhésivité dans les mélanges bitumineux pour couche de base et couche de liaison.  L’essai de module en traction après un protocole de vieillissement en conditions saturées (Essai SATS : Saturation Ageing Tensile Stiffness) est utilisé pour vieillir les éprouvettes en présence d'eau. Un essai comparatif permettant d'évaluer leurs performances avant et après conditionnement est également réalisé.
L'applicabilité de cette méthode d'essai est limitée aux éprouvettes bitumineuses ayant des teneurs en vides conséquentes et à base de bitume de grades durs, en particulier, les mélanges pour enrobés bitumineux ayant une teneur en liant comprise entre 3,5 % et 5,5 %, des teneurs en vides comprises entre 6 % et 10 % et les bitumes routiers de grade dur 10/20.
L'essai est destiné à servir d'essai crible afin d’évaluer une combinaison de granulats, de filler et d’additifs en ce qui concerne la durabilité des propriétés d’adhésivité après un vieillissement simulé dans une atmosphère humide pour les mélanges rigides et pauvres en liant pour couche de base et couche de liaison.

Bitumenske zmesi - Preskusne metode - 45. del: Preskus staranja na zasičenih asfaltnih preskušancih (preskus SATS)

General Information

Status
Withdrawn
Publication Date
30-May-2020
Withdrawal Date
30-Aug-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
26-Feb-2020
Due Date
08-Feb-2021
Completion Date
26-Feb-2020

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SLOVENSKI STANDARD
SIST EN 12697-45:2020
01-maj-2020
Nadomešča:
SIST EN 12697-45:2012
Bitumenske zmesi - Preskusne metode - 45. del: Preskus staranja na
zasičenih asfaltnih preskušancih (preskus SATS)

Bituminous mixtures - Test methods - Part 45: Saturation Ageing Tensile Stiffness

(SATS) conditioning test

Asphalt - Prüfverfahren - Teil 45: Alterungsprüfung an gesättigten Asphalt-Probekörpern

(SATS-Prüfung)

Mélanges bitumineux - Méthodes d'essai - Partie 45: Saturation vieillissant l'essai de

tension de la rigidité (SATS)
Ta slovenski standard je istoveten z: EN 12697-45:2020
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
SIST EN 12697-45:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12697-45:2020
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SIST EN 12697-45:2020
EN 12697-45
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-45:2012
English Version
Bituminous mixtures - Test methods - Part 45: Saturation
Ageing Tensile Stiffness (SATS) conditioning test

Mélanges bitumineux - Méthodes d'essai - Partie 45 : Asphalt - Prüfverfahren - Teil 45: Alterungsprüfung an

Essai de module en traction après saturation gesättigten Asphalt-Probekörpern (SATS-Prüfung)

conditionnée (SATS)
This European Standard was approved by CEN on 18 November 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 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 Management

Centre has the same status as the official versions.

CEN members are the national 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
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12697-45:2020 E

worldwide for CEN national Members.
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SIST EN 12697-45:2020
EN 12697-45:2020 (E)
Contents Page

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

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Principle ............................................................................................................................................................. 5

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

5.1 Sample manufacture ...................................................................................................................................... 5

5.2 Conditioning regime....................................................................................................................................... 5

5.3 Comparative test ............................................................................................................................................. 9

6 Solvent and other materials ........................................................................................................................ 9

7 Sample preparation ........................................................................................................................................ 9

8 Conditioning procedure ............................................................................................................................. 11

9 Comparative test procedure .................................................................................................................... 12

10 Calculation ...................................................................................................................................................... 12

10.1 Bulk density and air voids content ........................................................................................................ 12

10.2 Saturation before conditioning ............................................................................................................... 13

10.3 Saturation after conditioning .................................................................................................................. 13

10.4 Stiffness ratio ................................................................................................................................................. 13

11 Test report ...................................................................................................................................................... 14

12 Precision .......................................................................................................................................................... 15

Bibliography ................................................................................................................................................................. 16

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SIST EN 12697-45:2020
EN 12697-45:2020 (E)
European foreword

This document (EN 12697-45:2020) has been prepared by Technical Committee CEN/TC 227 “Road

materials”, 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 August 2020, and conflicting national standards shall

be withdrawn at the latest by August 2020.

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 12697-45:2012.

The following is a list of significant technical changes since the previous edition:

— the title no longer makes the method exclusively for hot mix asphalt;
— [ge] editorial update according to current standard template;
— [ge] dated references for test methods deleted in relevant places;

— [ge] NOTES modified and adjusted to normal text and vice versa where appropriate according to

ISO/IEC Directives – Part 2:2016, 24.5;

— [Clause 1] irrelevant NOTE deleted, indicating a future development of alternative conditions not

covered by this document;
— [Clause 2] titles for test methods EN 12697-serie adjusted;

— [Bibliography] test methods referred to in normal text moved to Clause 2 Normative references.

A list of all parts in the EN 12697 series can be found on the CEN website.

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, 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 the

United Kingdom.
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SIST EN 12697-45:2020
EN 12697-45:2020 (E)
1 Scope

This document specifies a test method to assess the durability of adhesion in base and binder course

asphalt mixtures. The Saturation Ageing Tensile Stiffness (SATS) conditioning regime is used to age the

specimens in the presence of water. A comparative test for assessing their performance before and after

conditioning is also conducted.

The applicability of this test method is limited to bituminous specimens with consistent air voids

contents and hard binder, in particular, to asphalt concrete mixtures with a binder content between

3,5 % and 5,5 %, air voids contents between 6 % and 10 % and 10/20 pen hard paving grade bitumen.

The test is intended to be used as a screening test for the assessment of a combination of aggregate,

filler and additives with respect to the retained adhesion properties after simulated ageing in a moist

atmosphere for lean/stiff base and binder course mixtures.
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 12697-5, Bituminous mixtures — Test methods — Part 5: Determination of the maximum density

EN 12697-6, Bituminous mixtures — Test methods — Part 6: Determination of bulk density of bituminous

specimens

EN 12697-8, Bituminous mixtures — Test methods — Part 8: Determination of void characteristics of

bituminous specimens
EN 12697-26:2018, Bituminous mixtures — Test methods — Part 26: Stiffness

EN 12697-30, Bituminous mixtures — Test methods — Part 30: Specimen preparation by impact

compactor

EN 12697-31, Bituminous mixtures — Test methods — Part 31: Specimen preparation by gyratory

compactor

EN 12697-33, Bituminous mixtures — Test method — Part 33: Specimen prepared by roller compactor

3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 12697-5, EN 12697-6 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
saturation before conditioning

saturation of the mixture, determined as the calculated proportion of air voids filled with water after

partial vacuum saturation, prior to conditioning by storage under increased pressure and elevated

temperature, in percent
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SIST EN 12697-45:2020
EN 12697-45:2020 (E)
3.2
unconditioned stiffness

stiffness modulus of the mixture as determined in accordance with EN 12697-26:2018, Annex C, prior

to conditioning by storage under increased pressure and elevated temperature
Note 1 to entry: Alternative comparative tests can be used (see 9.2).
3.3
conditioned stiffness

stiffness modulus of the mixture as determined in accordance with EN 12697-26:2018, Annex C, after

conditioning by storage under increased pressure and elevated temperature
3.4
stiffness ratio
ratio of the conditioned stiffness to the unconditioned stiffness
3.5
saturation after conditioning

saturation of the mixture, determined as the calculated proportion of air voids filled with water after

conditioning by storage under increased pressure and elevated temperature, in percent

4 Principle

Nominally identical test specimens are subjected to moisture saturation by a vacuum system. They are

then transferred into a pressurized vessel partially filled with water where they are subjected to a

conditioning procedure by storage at 85 °C temperature and 2,1 MPa pressure for 65 h. The ratios of the

stiffness, measured by indirect tension on cylindrical specimens, before and after conditioning by

storage under increased pressure and elevated temperature on the individual specimens situated above

the water are averaged to determine the sensitivity of the material to ageing and moisture. The whole

process is referred to as the Saturation Ageing Tensile Stiffness (SATS) conditioning test. The average

ratio is the SATS durability index of the mixture components when the comparative test is the indirect

tensile stiffness modulus.

NOTE Tests other than stiffness by indirect tension on cylindrical specimens can be used as the comparative

test (see 9.2).
5 Apparatus
5.1 Sample manufacture
5.1.1 Asphalt mixer.
5.1.2 Coring equipment.
5.1.3 Saw for cutting asphalt.
5.2 Conditioning regime

5.2.1 Vacuum desiccator and vacuum pump, including manometer or calibrated vacuum gauge in

accordance with EN 12697-5.

5.2.2 Balance with a capacity greater than the mass of a sample that is accurate to 0,1 g.

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SIST EN 12697-45:2020
EN 12697-45:2020 (E)

5.2.3 Pressure/temperature vessel designed to operate at (2,1 ± 0,1) MPa between 80 °C and

115 °C and which shall be made from stainless steel, having internal dimensions adequate to contain

the specimen tray (see 5.2.7) and an integral temperature control system that is capable of:

a) bringing the loaded pressurized vessel to the desired conditioning temperature ± 0,5 °C, as

recorded by a suitable thermometer inside the vessel, within 2 h;

b) maintaining the temperature at all points within the vessel at the ageing temperature ± 0,5 °C.

SAFETY PRECAUTIONS — The pressure ageing vessel operates at high temperatures and high

pressures. All safety guidelines issued by equipment manufacturers shall be adhered to.

5.2.4 Pressure controlling devices

5.2.4.1 Pressure release valve, which prevents pressure in the vessel from exceeding 2,5 MPa

during the ageing procedure.

5.2.4.2 Pressure regulator, capable of controlling the pressure within the vessel to ± 0,1 MPa and

with a capacity sufficient to reduce the pressure from the source of compressed air so that the pressure

within the vessel is maintained at the operating pressure of (2,1 ± 0,1) MPa.

5.2.4.3 Slow release bleed valve, which allows the pressure in the vessel at the completion of the

test to be reduced from the 2,1 MPa operating pressure, to atmospheric pressure within 20 min to

30 min.

5.2.4.4 Pressure gauge, capable of measuring the pressure within the vessel to within 0,3 MPa

during the test. The pressure gauge shall be calibrated to an accuracy of ± 0,1 MPa at appropriate

intervals.

5.2.4.5 Porous disc, 5 mm thick by 100 mm diameter, with a permeability substantially greater

than that of the asphalt and the capability withstand the maximum vertical pressure likely to be

imposed. The discs shall be checked before each use to ensure that they are not clogged by particles.

They shall be boiled for at least 10 min in distilled water before use and kept immersed in de-aerated

water until required.

5.2.5 Thermometer, accurate to 0,1 °C, for measuring the temperature inside the pressure vessel.

NOTE A resistance thermal detector (RTD) has been found to be suitable.

5.2.6 Temperature recording device, data acquisition system capable of recording the temperature

throughout the test to 0,1 °C.

NOTE The current method of monitoring temperature is via a computerized log of time and temperature. It is

assumed the temperature recorded is that which is to be found within every point within the ageing vessel.

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SIST EN 12697-45:2020
EN 12697-45:2020 (E)
Dimensions in millimetres
Key
1 pressure regulator
2 compressed air cylinder
3 pressure vessel
Figure 1 — Schematic diagram and dimensions of typical pressure vessel

5.2.7 Specimen tray, having the form and dimensions specified in Figure 2, to accommodate five test

specimens for a full test. The tray shall sit in the pressure vessel on top of a porous disc, as shown in

Figure 3.
The
...

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