EN 12697-53:2019

Bituminous mixtures - Test methods - Part 53: Cohesion increase by spreadability-meter method

This document specifies a method to measure the spreadability characteristics of bituminous mixtures which are able to vary with time. It can be used for the determination of the delay between manufacturing and laying. It is intended to be assistance for bituminous mixtures design rather than a type test.
This document applies to bituminous mixtures both those made up in laboratory and those resulting from work site sampling, with an upper aggregate size not larger than 31,5 mm. It is not applicable to mastic asphalt.

Asphalt - Prüfverfahren - Teil 53: Kohäsionszunahmemessung durch Ausbreitmaßmethode

Dieses Dokument legt ein Verfahren zur Messung der Ausbreitungseigenschaften von Asphalt fest, die sich mit der Zeit ändern können. Dieses Verfahren kann für die Bestimmung der Verzögerung zwischen Herstellung und Einbau angewendet werden. Es ist eher als Unterstützung bei der Konzeption des Asphalts gedacht als zur Typprüfung.
Dieses Dokument gilt sowohl für Asphalte, die im Labor hergestellt wurden, als auch für Asphalte, die an der Baustelle entnommen wurden, mit einer oberen Korngröße der Gesteinskörnung bis höchstens 31,5 mm. Es ist nicht für Gussasphalt anwendbar.

Mélanges bitumineux - Méthodes d'essai - Partie 53 : Montée en cohésion par la méthode du maniabilimètre

Le présent document spécifie une méthode permettant de mesurer les caractéristiques de maniabilité d’un mélange bitumineux qui sont susceptibles de varier dans le temps. Elle peut être employée pour déterminer le délai entre fabrication et mise en oeuvre. Plus qu’une épreuve de formulation, elle se veut être une aide à la formulation des mélanges.
Le document s’applique aux mélanges bitumineux, ceux confectionnés en laboratoire comme ceux provenant d’un prélèvement sur chantier, ayant une dimension granulaire maximale ne dépassant pas 31,5 mm. Elle ne s’applique pas aux asphaltes coulés routiers.

Bitumenske zmesi - Preskusne metode - 53. del: Povečanje kohezije z metodo merjenja razširjanja

Cilj preskusa je določanje povečanja kohezije bitumenske zmesi pri fiksni temperaturi in vlažnosti z merjenjem razširjanja. Ta evropski standard določa metodo za merjenje lastnosti razširjanja pri asfaltu, ki se lahko spreminjajo skozi čas. Lahko se uporablja za določanje zakasnitve med proizvodnjo in polaganjem. Namenjena je za pomoč pri projektiranju zmesi in ne tipski preskus. Ta evropski standard se uporablja za bitumenske zmesi (za tiste, izdelane v laboratoriju, in za tiste, ki izhajajo iz vzorčenja na delovišču) z velikostjo zgornjega agregata največ 31,5 mm. Ne uporablja se za liti asfalt.

General Information

• Status: Published
• Publication Date: 24-Sep-2019
• Withdrawal Date: 30-Mar-2020
• ICS: 93.080.20 - Road construction materials
• Technical Committee: CEN/TC 227 - Road materials
• Drafting Committee: CEN/TC 227/WG 1 - Bituminous mixtures
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 18-Jun-2025
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 12697-53:2019 - Bituminous mixtures - Test methods - Part 53: Cohesion increase by spreadability-meter method

Overview

EN 12697-53:2019 - "Bituminous mixtures - Test methods - Part 53: Cohesion increase by spreadability‑meter method" (CEN) defines a laboratory and site sampling test to measure the spreadability and cohesion increase of bituminous mixtures over time. The method uses a spreadability‑meter to record shear resistance as a piston advances through a filled mould, providing a practical indicator of how a mixture’s workability evolves and helping determine the allowable delay between manufacturing and laying. This standard is intended as a design and mix‑evaluation aid rather than a pass/fail type test. It does not apply to mastic asphalt and is for mixtures with an upper aggregate size ≤ 31.5 mm.

Key topics and technical requirements

• Principle: Measure the maximal shear force (Fmax) developed by a piston‑driven stainless steel plate moving through a prepared bituminous sample; cohesion increase is inferred from rising shear force over curing time.
• Scope: Applies to laboratory mixes and work site samples (aggregate max 31.5 mm); not for mastic asphalt.
• Apparatus:
  • Moulds: large (L 220 × W 300 × H 100 mm) or small (L 220 × W 150 × H 100 mm).
  • Spreadability‑meter: piston speed (10.0 ± 0.5 mm/s); force sensor accuracy specified (±1 N up to 100 N, ±1 % above 100 N); stainless steel plate geometry and initial gap detailed.
  • Optional filling shoot and discharge box for reproducible sample filling.
  • Climatic chamber or oven to control curing temperature and hygrometry.
• Procedure:
  • Prepare multiple moulds for different curing times; at least two valid tests per curing time (results must not differ by more than 15%).
  • Strike off to (100 ± 2) mm thickness without compacting; condition samples; measure shear force within 2 minutes of removal from chamber.
  • Express results as average Fmax for each curing time and optionally plot cohesion evolution curves.
• Reporting: Test method reference, sample ID, mix type and formula, moisture and density method, curing conditions, mould size and filling procedure, test temperature, Fmax per curing time and other required details.
• Precision: Not determined in this part.

Applications

• Evaluate workability and handling window (delay between manufacture and laying) for asphalt production and paving operations.
• Support mix design and optimization by tracking cohesion development (especially for mixes that change properties over time).
• Quality control for asphalt plants and on‑site sampling to inform paving schedules.
• Research into curing kinetics and spreadability of novel binders or additives.

Who uses this standard

• Pavement engineers and mix designers
• Asphalt plant QC laboratories
• Construction contractors and site supervisors
• Research institutions studying bituminous mixture behavior

Related standards

• EN 12697 series (other test methods for bituminous mixtures) - consult the EN 12697 family for complementary tests on density, mechanical properties and volumetrics.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2019
Bitumenske zmesi - Preskusne metode - 53. del: Povečanje kohezije z metodo
merjenja razširjanja
Bituminous mixtures - Test methods - Part 53: Cohesion increase by spreadability-meter
method
Asphalt - Prüfverfahren - Teil 53: Beurteilung der Kohäsionszunahme durch Messung
der Konsistenz
Mélanges bitumineux - Méthodes d'essai - Partie 53: Montée en cohésion par la
méthode du maniabilimètre
Ta slovenski standard je istoveten z: EN 12697-53:2019
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 12697-53
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 93.080.20
English Version
Bituminous mixtures - Test methods - Part 53: Cohesion
increase by spreadability-meter method
Mélanges bitumineux - Méthodes d'essai - Partie 53 : Asphalt - Prüfverfahren - Teil 53:
Montée en cohésion par la méthode du maniabilimètre Kohäsionszunahmemessung durch
Ausbreitmaßmethode
This European Standard was approved by CEN on 1 July 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12697-53:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
5 Apparatus . 5
5.1 Moulds . 5
5.2 Spreadability-meter . 6
5.3 Filling shoot . 7
5.4 Steel straightedge for striking off . 8
5.5 Climatic chamber or oven . 8
6 Procedure. 9
6.1 Number of samples to be tested . 9
6.2 Filling the mould and curing . 9
6.3 Shear force measurement . 9
6.4 Expression of the results . 10
7 Precision . 10
8 Test report . 10
Bibliography . 12

European foreword
This document (EN 12697-53:2019) 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 March 2020, and conflicting national standards shall be
withdrawn at the latest by March 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.
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 method to measure the spreadability characteristics of bituminous mixtures
which are able to vary with time. It can be used for the determination of the delay between
manufacturing and laying. It is intended to be assistance for bituminous mixtures design rather than a
type test.
This document applies to bituminous mixtures both those made up in laboratory and those resulting
from work site sampling, with an upper aggregate size not larger than 31,5 mm. It is not applicable to
mastic asphalt.
2 Normative references
There are no normative references in this document.
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 http://www.iso.org/obp
4 Principle
The aim of the test is to determine the cohesion increase of a bituminous mixture in fixed temperature
and hygrometry conditions, using a spreadability-meter.
The cohesion increase test consists of measuring of the resistance against the shear due to the progress
of a piston in a mould filled with the bituminous mixture to be tested (Figure 1). The cohe
...