EN 12697-54:2019
(Main)Bituminous mixtures - Test methods - Part 54: Curing of specimen for test of mixtures with bitumen emulsion
Bituminous mixtures - Test methods - Part 54: Curing of specimen for test of mixtures with bitumen emulsion
This document describes a series of accelerated protocols for curing of bituminous mixtures with bitumen emulsion in order to assess their properties.
The protocols are to be selected according to the type of mixture, the type of specimen, the test to be carried out and the conditions of the place of use.
This document applies to mixtures, specimens and cores, prepared in the laboratory and/or taken from the worksite.
The laboratory curing procedure is designed for bituminous mixtures containing bitumen emulsions, but it could also be used for other types of asphalt mixture that require curing in order to reach their potential strength.
Asphalt - Prüfverfahren - Teil 54: Reifung von Probekörpern aus emulsionsgebundenem Mischgut
Dieses Dokument beschreibt eine Reihe von beschleunigten Verfahren für die Reifung von emulsionsgebundenen bitumenhaltigen Mischgütern, um deren Eigenschaften zu beurteilen.
Die Verfahren sind dem Mischguttyp, dem Probekörpertyp, der durchzuführenden Prüfung und den am Einsatzort herrschenden Bedingungen entsprechend auszuwählen.
Dieses Dokument gilt für im Labor hergestellte und/oder auf der Baustelle entnommene Mischgüter, Probekörper und Bohrkerne.
Das Laborreifungsverfahren ist für emulsionsgebundene bitumenhaltige Mischgüter vorgesehen, könnte aber auch auf andere Asphaltmischgüter angewendet werden, bei denen zur Erreichung der möglichen Festigkeit eine Reifung erforderlich ist.
Mélanges bitumineux - Méthodes d'essai - Partie 54: Mûrissement d'éprouvettes d'essai pour enrobés à l'émulsion de bitume
Ce document décrit une série de protocoles accélérés de mûrissement de mélanges à l'émulsion de bitume afin d’en évaluer les propriétés.
Les protocoles doivent être sélectionnés en fonction du type de mélange, du type d’éprouvette, de l’essai à réaliser et des conditions en vigueur sur le lieu d’utilisation.
Ce document s’applique aux mélanges, éprouvettes et carottes, préparés au laboratoire et/ou prélevés sur chantier.
La procédure de mûrissement en laboratoire est conçue pour les mélanges bitumineux contenant des émulsions de bitume, mais peut également être utilisée pour d’autres types de mélange bitumineux nécessitant un mûrissement pour atteindre leur résistance potentielle.
Bitumenske zmesi - Preskusne metode - 54. del: Priprava vzorcev za preskus zmesi z bitumensko emulzijo
Ta evropski standard opisuje nabor pospešenih protokolov za pripravo bitumenskih zmesi z bitumensko emulzijo za oceno njihovih lastnosti. Protokoli naj se izberejo glede na vrsto zmesi, vrsto preskušanca, preskus, ki ga je treba izvesti, in pogoje mesta uporabe. Ta evropski standard se uporablja za zmesi, preskušance in jedra, ki so pripravljeni v laboratoriju in/ali odvzeti z delovišča. Postopek priprave v laboratoriju je zasnovan za asfaltne zmesi, ki vsebujejo bitumenske emulzije, vendar ga je mogoče uporabiti tudi za druge vrste asfaltnih zmesi, ki zahtevajo pripravo, da dosežejo potencialno trdnost.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2019
Bitumenske zmesi - Preskusne metode - 54. del: Priprava vzorcev za preskus
zmesi z bitumensko emulzijo
Bituminous mixtures - Test methods - Part 54: Curing of specimen for test of mixtures
with bitumen emulsion
Asphalt - Prüfverfahren - Teil 54: Reifung von Probekörpern aus emulsionsgebundenem
Mischgut
Mélanges bitumineux - Méthodes d'essai - Partie 54: Mûrissement d'éprouvettes d'essai
pour enrobés à l'émulsion de bitume
Ta slovenski standard je istoveten z: EN 12697-54:2019
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 12697-54
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 93.080.20
English Version
Bituminous mixtures - Test methods - Part 54: Curing of
specimen for test of mixtures with bitumen emulsion
Mélanges bitumineux - Méthodes d'essai - Partie 54: Asphalt - Prüfverfahren - Teil 54: Reifung von
Mûrissement d'éprouvettes d'essai pour enrobés à Probekörpern aus emulsionsgebundenem Mischgut
l'émulsion de bitume
This European Standard was approved by CEN on 17 June 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 12697-54:2019 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 . 5
5 Apparatus . 5
5.1 Climatic chamber or ventilated oven . 5
5.2 Perforated boxes . 5
6 Curing nomenclature . 6
6.1 General . 6
6.2 Protocols . 7
7 Procedure. 8
7.1 General . 8
7.2 Uncompacted mixtures . 8
7.3 Compacted specimen . 8
7.3.1 Unconfined specimens . 8
7.3.2 Confined specimens . 8
8 Test report . 9
Annex A (informative) Sampling and preparation of samples . 10
Annex B (informative) European experiences . 12
Bibliography . 15
European foreword
This document (EN 12697-54:2019) 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, Republic of North Macedonia, Norway,
Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
1 Scope
This document describes a series of accelerated protocols for curing of bituminous mixtures with
bitumen emulsion in order to assess their properties.
The protocols are to be selected according to the type of mixture, the type of specimen, the test to be
carried out and the conditions of the place of use.
This document applies to mixtures, specimens and cores, prepared in the laboratory and/or taken from
the worksite.
The laboratory curing procedure is designed for bituminous mixtures containing bitumen emulsions,
but it could also be used for other types of asphalt mixture that require curing in order to reach their
potential strength.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 http://www.iso.org/obp
3.1
curing level
status and properties of the specimen, after subjecting to the chosen curing protocol
3.2
conventional curing level
status of the specimen, after subjecting to the chosen curing protocol, when its properties are assumed
to be equivalent to the properties in the field
Note 1 to entry: To determine the conventional curing level and appropriate curing protocols, studies can be
developed aimed to compare the properties after the protocols and the properties obtained in the field.
Note 2 to entry: Furthermore, in the manufacture and compaction of the mix, it is possible that some curing
occurs. It is convenient to evaluate this effect.
3.3
non-compacted mixtures
bituminous mixture that has not been subjected to compaction process
3.4
unconfined specimen
compacted specimen to be subjected to curing after being extracted from the mould
3.5
confined specimen
compacted specimen to be subjected to curing before being extracted from the mould
4 Principle
Several conditioning protocols with as a combination of the temperature (Table 2), relative humidity
(Table 3) and duration parameters (Table 4) are described with the aim to obtain properties of an
asphalt mixture, equivalent to the properties in the field after a certain period of time.
5 Apparatus
5.1 Climatic chamber or ventilated oven
NOTE Emissions of volatile compounds can occur during the curing process.
5.1.1 Climatic chamber, thermostatically controlled, suitable for heating the specimens up to the
relevant temperature with the tolerance of ±2 °C and humidity controlled with the tolerance of ±10 %.
5.1.2 Ventilated oven, thermostatically controlled, suitable for heating the specimens up to the
relevant temperature with the tolerance of ±2 °C.
5.2 Perforated boxes
Dimensions (200 ± 5) mm long, (300 ± 5) mm wide and (50 ± 2) mm high, made of perforated
(3 ± 0,2) mm metal sheet on the sides and bottom. Equipped with paws (10 ± 1) mm in diameter and
(50 ± 2) mm high at each corner of the base, see Figure 1.
Boxes only concern the uncompacted mixture.
Dimensions in millimetres
Figure 1 — Box of perforated metal
6 Curing nomenclature
6.1 General
All protocols shall be stated in the sequence of Table 1.
Table 1 — Nomenclature for curing protocols
Temperature Relative humidity Duration, days
°C % d
Txx Hxx Dxx
For example: T20H50D1 for a curing protocol with a temperature of 20 °C, a relative humidity of 40 %
to 60 % and a duration of 1 d.
6.2 Protocols
Selectable curing parameters are given in the Tables 2, 3 and 4.
Table 2 — Temperature
Temperature
°C
T18 18 ± 2
T20 20 ± 2
T35 35 ± 2
T40 40 ± 2
T50 50 ± 2
T60 60 ± 2
T75 75 ± 2
T90 90 ± 2
Td Declared temperature ±2
Table 3 — Relative humidity
Relative humidity
%
H20 20 ± 10
H50 50 ± 10
H90 90 ± 10
Declared
Hd
humidity ±10
Hnc Not controlled
Table 4 — Duration
Duration, days
d
D1 1
D2 2
D3 3
D5 5
D7 7
D10 10
D14 14
D21 21
Dd Declared duration of days
7 Procedure
7.1 General
The specimens after compaction or the non-compacted mixes are placed in the oven under the
conditions specified by each protocol. The supporting surface shall have holes no larger than 3 mm to
allow air circulation.
The protocol shall be selected according to Clause 6.2: temperature, taking into account the softening
point of the binder or the mastic of the mixture, to avoid binder fluence or collapses of the compacted
specimens; relative humidity, to ensure proper curing for example mixes containing hydraulic binders;
and a duration sufficient to complete the curing process.
The protocol shall be selected also depending on the type of mixture, emulsion, sample size and place of
application.
7.2 Uncompacted mixtures
Weigh 4 000 grams of uncompacted mixture in each perforated box and place in centre of oven. It can
be placed several boxes considering that the spacing between boxes shall be at least 50 mm in all
directions.
After the curing process, the specimens shall be taken out from the oven and let them cool to room
temperature.
7.3 Compacted specimen
7.3.1 Unconfined specimens
Each compacted specimen shall have adequate space around it to allow proper curing. The space should
be at least 50 mm in any direction except the bearing face.
After the curing process, the specimens shall be taken out from the oven and left to cool to room
temperature. If the integrity of the specimen is altered during the process, other protocols shall be
chosen.
7.3.2 Confined specimens
The confinement of the compacted specimens is indicated for mixtures too fragile to be extracted from
the mould.
It is the case for mixtures with bitumen emulsion where the binder includes solvents or soft bitumen, or
both. Every compacted specimen shall have adequate space around it to allow a good air circulation and
manipulation of the specimen.
To avoid material loss from the confined specimen, it is recommended to put the specimen in the oven,
slide down the specimen into the mould to rest on the tray.
After the curing process, the specimens shall be taken out from the oven and left to cool to room
temperature prior to removal from the mould and testing. If the integrity of the specimen is altered
during the process, other protocols shall be chosen.
8 Test report
The report on the test(s) for which the samples are produced shall reference to this document and
include the following:
a) the mixture composition;
b) the nature and origin of the component materials;
c) curing carried out on sample
...
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