EN 12697-20:2020
(Main)Bituminous mixtures - Test methods - Part 20: Indentation using cube or Marshall specimens
Bituminous mixtures - Test methods - Part 20: Indentation using cube or Marshall specimens
This document specifies a test method for determining the depth of indentation of mastic asphalt and other asphalt, when force is applied to them via a cylindrical indentor pin with a circular flat-ended base. This document applies to aggregates of maximum nominal size less than or equal to 16 mm.
Asphalt - Prüfverfahren - Teil 20: Eindringversuch an Würfeln oder Marshall-Probekörpern
Dieses Dokument legt ein Prüfverfahren zur Bestimmung der Eindringtiefe von Gussasphalt und anderer Asphaltarten bei Beanspruchung mit einem zylindrischen Stempel mit kreisförmiger ebener Grundfläche fest. Dieses Dokument gilt für Gesteinskörnungen mit einer maximalen Nenngröße gleich oder kleiner als 16 mm.
Mélanges bitumineux - Méthodes d’essai - Partie 20 : Essai d'indentation de cubes ou éprouvettes Marshall
Ce document spécifie une méthode d’essai pour déterminer la profondeur d’indentation d’un asphalte coulé et d’autres types d’enrobés sous l’effet d’une force exercée par l’intermédiaire d’un poinçon cylindrique à embout plat circulaire. Ce document s’applique à des granulats dont la granulométrie nominale maximale est inférieure ou égale à 16 mm.
Bitumenske zmesi - Preskusne metode - 20. del: Preskus z vtiskanjem na kocko ali preskušanec po Marshallu
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 12697-20:2012
Bitumenske zmesi - Preskusne metode - 20. del: Preskus z vtiskanjem na kocko ali
preskušanec po Marshallu
Bituminous mixtures - Test methods - Part 20: Indentation using cube or Marshall
specimens
Asphalt - Prüfverfahren - Teil 20: Eindringversuch an Würfeln oder Marshall-
Probekörpern
Mélanges bitumineux - Méthodes d’essai - Partie 20: Essai de pénétration de cubes ou
éprouvettes Marshall
Ta slovenski standard je istoveten z: EN 12697-20:2020
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12697-20
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-20:2012
English Version
Bituminous mixtures - Test methods - Part 20: Indentation
using cube or Marshall specimens
Mélanges bitumineux - Méthodes d'essai - Partie 20 : Asphalt - Prüfverfahren - Teil 20: Eindringversuch an
Essai d'indentation de cubes ou éprouvettes Marshall Würfeln oder Marshall-Probekörpern
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 12697-20:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Apparatus . 5
4.1 Moulding of test cubes of mastic asphalt . 5
4.2 Indentation test apparatus . 6
4.2.1 Loading apparatus . 6
5 Specimens . 12
5.1 Specimen type . 12
5.2 Number of specimens . 12
5.3 Conditioning . 12
6 Procedure. 12
6.1 Checking . 12
6.2 Test conditions . 12
6.3 Cube specimen preparation . 12
6.3.1 Specimen size . 12
6.3.2 Preparation of mastic asphalt samples mixed in industrial scale . 13
6.3.3 Preparation of laboratory-mixed MA . 13
6.3.4 Moulding of test cubes . 13
6.4 Cylindrical specimen preparation . 13
6.5 Mounting and temperature conditioning of the specimens . 13
6.6 Application of the force . 14
7 Result . 14
8 Precision . 14
9 Test report . 15
Bibliography . 16
European foreword
This document (EN 12697-20:2020) 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 12697-20:2012.
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;
— [Clause 2] references deleted to EN 13108−1, −2, −3, −4, −5 and −7 since they are not referred to,
ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10
IRHD and 100 IRHD) replaced by: ISO 48-2, Rubber, vulcanized or thermoplastic — Determination
of hardness — Part 2: Hardness between 10 IRHD and 100 IRHD;
— [Clause 3] new clause: 3 Terms and definitions introduced according to ISO/IEC Directives – Part 2.
Following clauses renumbered accordingly;
— for the following changes the new clause number is given within [ ] and the corresponding clause
number in previous version is given within ( );
— [4.1.8] (3.1.8) Silicone oil added as an example of release agent;
— [4.1.9] (3.1.9) Figure 1: correction of tolerances of metal mould to (± 0,5) in accordance with [4.1.1]
(3.1.1);
— [4.2.1.1] (3.2.1.1) accuracy of ± 0,1 mm for dial gauge introduced;
— [4.2.5] ISO 48 replaced by: ISO 48-2;
— [5.3] (4.3) two NOTEs deleted;
— [6.3.1] (5.3.1) tolerance for edge and height of specimen unified to (70,7 ± 0,5) mm in accordance
with [4.1.1] (3.1.1);
— [6.3.2.2] (5.3.2.2) Reference to “the temperature indicated by the producer” deleted since it is
covered by EN 12697-35;
— [6.3.2.3] (5.3.2.3) Sentence regarding temperature limit of 240 °C deleted. Subclause [6.3.2.3]
(5.3.2.2) is referring to EN 12697-35. Corresponding NOTE deleted;
— [6.3.3] (5.3.3) Temperature restriction to 240 °C deleted. Subclause is referring to EN 12697-35;
— [Clause 7] (Clause 6) Instruction for the repetition of a test introduced; EN 12697-35;
— [Clause 8] (Clause 7) Paragraph with permissible difference deleted.
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.
1 Scope
This document specifies a test method for determining the depth of indentation of mastic asphalt and
other asphalt, when force is applied to them via a cylindrical indentor pin with a circular flat-ended
base. This document applies to aggregates of maximum nominal size less than or equal to 16 mm.
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 12697-27, Bituminous mixtures — Test methods — Part 27: Sampling
EN 12697-30, Bituminous mixtures — Test methods — Part 30: Specimen preparation by impact
compactor
EN 12697-35, Bituminous mixtures — Test methods — Part 35: Laboratory mixing
EN 12970, Mastic asphalt for waterproofing — Definitions, requirements and test methods
EN 13108-6, Bituminous mixtures — Material specifications — Part 6: Mastic Asphalt
ISO 48-2, Rubber, vulcanized or thermoplastic — Determination of hardness —Part 2: Hardness between
10 IRHD and 100 IRHD
3 Terms and definitions
No terms and definitions are listed in this document.
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
4 Apparatus
4.1 Moulding of test cubes of mastic asphalt
4.1.1 Cubic mould: composite metal mould with inside edges (70,7 ± 0,5) mm to mould the test cube
(see Figure 1).
4.1.2 Oven capable of maintaining temperature of (250 ± 10) °C.
4.1.3 Hardwood tamper with a quadratic cross section, edge length about 30 mm.
4.1.4 Spatula about 30 mm wide.
4.1.5 Mixing bowl with spoon.
4.1.6 Thermometer capable to measure 300 °C accurate to 2 °C.
4.1.7 Thermometer capable to measure 40 °C accurate to 1 °C.
4.1.8 Release agent (e.g. glycerine, waxed paper or silicone oil).
4.1.9 Adjustable mould for the test cube (see Figure 6).
Dimensions in millimetres
front view
top view
Figure 1 — Example of a mould for the preparation of test cubes
4.2 Indentation test apparatus
4.2.1 Loading apparatus
4.2.1.1 Description
Indentation test apparatus (see Figure 2) fitted with an indentor pin and a displacement transducer,
suitable for one or two measuring points. Instead of the transducer, a dial gauge with an accuracy
of ± 0,1 mm, may also be used. The water bath, as specified in 4.2.2, shall be connected to the
indentation test apparatus by means of a secure and watertight connection running from the bed plate,
as specified in 4.2.3, through the bath to the base plate of the apparatus. The measuring pin of the
displacement transducer shall not be located more than 50 mm from the axis of the guide rod.
4.2.1.2 Loading weights
The indentation test apparatus shall be set up in such a way that first the preliminary force of (25 ± 1) N
then the main force of a further 500 N may be applied vertically and without impact to the surface of the
specimen. The apparatus shall be capable of maintaining the total test force of (525 ± 1) N constant
throughout the test. Two ball bearings shall be used to ensure a minimum of friction in the guidance of
the indentor pin. With the exception of the ball bearings, all components shall have a clearance of at
least 1 mm from the guide rod.
4.2.1.3 Steel identor pin
The bottom part of the steel indentor pin shall be in the shape of a regular flat ended cylinder with a
2 2
base area of either 100 mm or 500 mm (corresponding to a diameter of (11,3 ± 0,1) mm or
(25,2 ± 0,1) mm) and a length of at least 20 mm (see Figures 3 and 4). The sides and base of the cylinder
shall be smoothed to a fine finish. The length and mass of the two indentor pins shall be identical,
irrespective of the diameter of the base. The indentor pins shall scr
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