EN 12697-19:2020
(Main)Bituminous mixtures - Test methods - Part 19: Permeability of specimen
Bituminous mixtures - Test methods - Part 19: Permeability of specimen
This document specifies a method for determining the vertical and horizontal permeability of cylindrical specimens of bituminous mixtures with interconnecting voids. The document applies to specimens cored out of the road, specimens from laboratory made slabs or laboratory specimens prepared with a compaction device provided the thickness of the specimen is not less than twice the nominal maximum particle size of the aggregate in the mixture. The nominal diameter of specimens should be either 100 mm or 150 mm unless the nominal maximum particle size of the aggregate size exceeds 22 mm, when the nominal diameter is 150 mm.
Asphalt - Prüfverfahren - Teil 19: Durchlässigkeit der Probekörper
Dieses Dokument legt ein Verfahren zur Bestimmung der vertikalen und horizontalen Durchlässigkeit von zylindrischen Asphalt-Probekörpern mit miteinander verbundenen Hohlräumen fest. Dieses Dokument gilt für durch Kernbohren aus einer Fahrbahnbefestigung entnommene Probekörper, für Probekörper aus im Laboratorium hergestellten Platten oder für im Laboratorium mit einer Verdichtungsvorrichtung hergestellte Probekörper, sofern die Dicke des Probekörpers nicht geringer als das Zweifache der maximalen Nennkorngröße der im Gemisch verwendeten Gesteinskörnung ist. Der Nenndurchmesser der Probekörper sollte entweder 100 mm oder 150 mm betragen, es sei denn, die maximale Nennkorngröße der Gesteinskörnung überschreitet 22 mm, in diesem Fall beträgt der Nenndurchmesser 150 mm.
Mélanges bitumineux - Méthodes d'essai - Partie 19 : Perméabilité des éprouvettes
Ce document spécifie une méthode pour déterminer la perméabilité verticale et horizontale d’éprouvettes cylindriques de mélanges bitumineux avec des vides communicants. Ce document s’applique à des carottes prélevées dans la chaussée, à des éprouvettes extraites de plaques fabriquées en laboratoire ou à des éprouvettes de laboratoire préparées avec un dispositif de compactage, à condition que l’épaisseur de l’éprouvette ne soit pas inférieure à deux fois la dimension nominale maximale des granulats du mélange. Il convient que le diamètre nominal des éprouvettes soit égal à 100 mm ou à 150 mm, sauf si la dimension nominale maximale des granulats dépasse 22 mm alors que le diamètre nominal est de 150 mm.
Bitumenske zmesi - Preskusne metode - 19. del: Prepustnost preskušancev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 12697-19:2012
Bitumenske zmesi - Preskusne metode - 19. del: Prepustnost preskušancev
Bituminous mixtures - Test methods - Part 19: Permeability of specimen
Asphalt - Prüfverfahren - Teil 19: Durchlässigkeit der Probekörper
Mélanges bitumineux - Méthodes d'essai - Partie 19: Perméabilité des éprouvettes
Ta slovenski standard je istoveten z: EN 12697-19:2020
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 12697-19
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-19:2012
English Version
Bituminous mixtures - Test methods - Part 19:
Permeability of specimen
Mélanges bitumineux - Méthodes d'essai - Partie 19 : Asphalt - Prüfverfahren - Teil 19: Durchlässigkeit der
Perméabilité des éprouvettes Probekörper
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 12697-19:2020 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 Vertical permeability . 4
5.1 General . 4
5.2 Apparatus for vertical permeability . 4
5.3 Procedure. 5
5.4 Calculation . 6
6 Horizontal permeability . 7
6.1 General . 7
6.2 Apparatus for horizontal permeability . 7
6.3 Procedure. 8
6.4 Calculation . 9
7 Test report . 10
7.1 General . 10
7.2 Information on specimen . 10
7.3 Information on the test and results . 10
8 Precision . 10
European foreword
This document (EN 12697-19:2020) 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 12697-19:2012.
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 3, new clause: 3 Terms and definitions introduced. Following clauses renumbered
accordingly;
— [5.2.2] accuracy of balance of ± 0,5 g introduced. (4.2.2 in previous version);
— [5.4.1] Formula (1): rounding rules for calculation introduced. (4.4.1 in previous version);
— [5.4.2] Formula (2) corrected. (4.4.2 in previous version);
— [6.2.4] accuracy of balance of ± 0,5 g introduced. (5.2.4 in previous version);
— [6.4.1] Formula (3): rounding rules for calculation introduced. (5.4.1 in previous version);
— [6.4.2] Formula (4), key for K : unit for the horizontal permeability corrected to (m/s). (5.4.2 in
h
previous version);
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 for determining the vertical and horizontal permeability of
cylindrical specimens of bituminous mixtures with interconnecting voids. The document applies to
specimens cored out of the road, specimens from laboratory made slabs or laboratory specimens
prepared with a compaction device provided the thickness of the specimen is not less than twice the
nominal maximum particle size of the aggregate in the mixture. The nominal diameter of specimens
should be either 100 mm or 150 mm unless the nominal maximum particle size of the aggregate size
exceeds 22 mm, when the nominal diameter is 150 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 12697-29, Bituminous mixtures — Test methods — Part 29: Determination of the dimensions of a
bituminous specimen
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 Principle
A column of water with a constant height is applied to a cylindrical specimen and is allowed to
permeate through the specimen for a controlled time in either a vertical or horizontal direction
depending upon the parameter being measured. The resultant flow rate of the water Q or Q is a
v h
calculated measure of the permeability value K or K . The test is carried out at ambient temperature.
v h
NOTE When the void content of the same specimen is determined, the relationship between permeability and
void content can be established.
5 Vertical permeability
5.1 General
In this method, only the water flow in a vertical direction through the specimen is measured.
5.2 Apparatus for vertical permeability
5.2.1 Apparatus as shown in Figure 1. The dimensions shall be such to ensure the water column
height is (300 ± 1) mm. The external diameter of the tube and any fittings shall be such that no water
can flow between the wall of the tube and the specimen when in place; the thickness of the tube shall be
sufficient to ensure it retains its shape but shall not be more than 5 mm.
The external diameter of the tube should generally be greater than the diameter of the specimen by up
to 5 mm.
NOTE A suitable rubber cuff that fits snugly around the tube and sample is one method to ensure that no
water can flow between the two. Another approach that could be used is to attach the plastic tube with duct tape
to the specimen.
5.2.2 A balance with suitable capacity and capable of weighing with an accuracy of ± 0,5 g.
5.3 Procedure
5.3.1 Determine the dimensions of the specimen, to the nearest millimetre, according to EN 12697-
29. The thickness shall be greater than 25 % of the diameter and greater than twice the nominal
maximum aggregate size of the mixture.
5.3.2 If the specimen is trimmed by saw cutting, it shall be cleaned prior to testing, to prevent
restriction of the water flow.
5.3.3 The test shall be carried out at ambient temperature within the ranges of 15 °C to 25 °C and
shall be monitored and recorded. Place the specimen in a rubber cuff. Insert a plastic tube in the cuff
and place it on top of the specimen. Carefully inflate the rubber cuff with air to at least 50 kPa, so that it
presses firmly around the wall of the specimen to prevent leakage of water along the wall. A seal needs
to be ensured between the cuff and the tube.
Dimensions in millimetres
Key
1 water supply 6 specimen
2 water column 7 water bath
3 plastic tube 8 perforated plate
4 rubber cuff (optional) 9 collecting reservoir
5 outlet to maintain water column height
Figure 1 — Apparatus for vertical permeability
5.3.4 Place the cuff with the specimen on a perforated plate and place it in a container that is filled
with water to the maximum level. Adjust the feet of the perforated plate in such a way that the upper
side of the specimen is at the same level as the water in the bath. Allow the water to flow into the
specimen for approximately 10 min. After this time, it is assumed that the specimen is saturated with
water and all enclosed air is removed.
5.3.5 Fill the plastic tube with water. There is an outlet in the plastic tube, so that a water column
height of (300 ± 1) mm is always maintained.
5.3.6 Allow the water to flow through the specimen into a container. The container shall be located
above a second container of mass m into which the water passing through the sample can overflow to
the level of the top of the sample. After approx. 1 min, empty the second container and collect the water
that flows through into the weighed second container for a certain time t, minimum 60 s. After the time
t weigh the second container together with the collected water m .
At a voids content of about 20 %, the vertical flow of water is about 3 l/min to 10 I/min. It should be
noted, however, that when the test is carried out on a core taken from the road surface, the surface can
be somewhat clogged and although still retaining 20 % voids may not have a flow in this range.
The measuring time can be decreased from 60 s if the amount of water exceeds 8 l. The decreased
measuring time should then be reported in the test report.
5.3.7 Repeat the test on the same specimen.
5.4 Calculation
5.4.1 Determine the vertical flow of water through the specimen Q according to Formula (1).
v
()mm−
2 1 −6
(1)
Q × 10
v
t
where
Q is the vertical flow, through the specimen, in cubic metres per second (m /s), to the
v
−6 3
nearest 1×10 m /s;
m is the mass of the empty second container, in gram (g), to the nearest 0,5 g;
m is the mass of the filled second container, in gram (g), to the nearest 0,5 g;
t is the time of collecting the water, in seconds (s), to the nearest 1 s;
The water density is assumed to 1 g/cm .
5.4.2 Calculate the vertical permeability K according to Formula (2):
v
4××Q l
v
(2)
K =
v
hD×π×
=
--------------
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.