SIST EN 12697-19:2020

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

• Status: Published
• Public Enquiry End Date: 19-Feb-2019
• Publication Date: 30-Mar-2020
• ICS: 93.080.20 - Road construction materials
• Technical Committee: CES - Roads
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Mar-2020
• Due Date: 10-May-2020
• Completion Date: 31-Mar-2020
• Ref Project: EN 12697-19:2020 - Bituminous mixtures - Test methods - Part 19: Permeability of specimen

Relations

• Replaces: SIST EN 12697-19:2012 - Bituminous mixtures - Test methods for hot mix asphalt - Part 19: Permeability of specimen
• Effective Date: 01-May-2020

Overview

SIST EN 12697-19:2020 is a European standard developed by CEN that specifies the test methods for determining the permeability of bituminous mixtures. This standard focuses on measuring both the vertical and horizontal permeability of cylindrical specimens, which are constructed from bituminous mixtures with interconnected voids. These specimens can be extracted directly from road surfaces or prepared in laboratory settings. The methodology applies to specimens with a thickness of at least twice the nominal maximum particle size of the aggregate in the mixture, and nominal specimen diameters are typically 100 mm or 150 mm, depending on aggregate size.

Permeability testing is essential in assessing the durability and performance of asphalt pavements, enabling engineers to estimate water flow through the bituminous layers, which directly impacts pavement life and safety.

Key Topics

• Scope and Specimens: SIST EN 12697-19:2020 covers permeability tests on road-core specimens and laboratory specimens prepared with compaction devices. Specimen thickness is critical-it must be at least double the nominal maximum particle size of aggregate to ensure accurate permeability measurements.

• Vertical Permeability Testing:

  • Measures the rate of water flow perpendicularly through the specimen.
  • Utilizes a water column of controlled height (300 ± 1 mm).
  • A rubber cuff or other sealing methods prevent leakage between the specimen and testing apparatus.
  • Flow rate is recorded by collecting water that passes through the specimen within a set time, allowing calculation of permeability coefficients.

• Horizontal Permeability Testing:

  • Assesses water flow tangentially through the specimen, offering a combination of vertical and horizontal permeability insights.
  • Prevents vertical water flow through specimen sealing.
  • Uses similar apparatus with adaptations to maintain horizontal water flow.

• Test Procedures and Calculations:

  • Both methods require careful specimen preparation, testing at ambient temperatures (15 °C to 25 °C), and precise measuring of specimen dimensions according to EN 12697-29.
  • Permeability is calculated based on collected water volume, specimen dimensions, and water column height.
  • Accuracy of weighing balances is specified to ±0.5 g to ensure reliable data.

• Repeatability and Reporting:

  • Tests are typically repeated to confirm results.
  • Detailed reports include specimen details, testing conditions, flow measurements, and calculated permeability values.

Applications

SIST EN 12697-19:2020 is crucial for road construction and pavement engineering professionals who require reliable data on moisture susceptibility and drainage capabilities of asphalt mixtures. Applications include:

• Road Maintenance and Rehabilitation: Determining permeability helps in diagnosing moisture damage risk and planning timely interventions.
• Quality Control in Asphalt Production: Ensures mixtures meet performance criteria related to water infiltration and void connectivity.
• Design of Porous Asphalt Layers: Optimizes drainage layers for improved surface water evacuation, reducing hydroplaning risk and improving road safety.
• Research and Development: Provides standardized methods to evaluate new bituminous materials or additives aimed at enhancing water resistance.
• Compliance Testing: Meets regional and international standards in construction, facilitating regulatory approval and certification.

Related Standards

SIST EN 12697-19:2020 is part of the EN 12697 series, which includes multiple test method standards for bituminous mixtures used in road construction. Related standards include:

• EN 12697-29: Specifies the determination of specimen dimensions, necessary for accurate permeability calculations under EN 12697-19.
• Other Parts of EN 12697 Series: Cover various mechanical, physical, and chemical test methods for bituminous mixtures, including compaction, stiffness, fatigue, and durability tests.
• ISO and IEC Terminology Databases: Recommended resources for standard terminology related to road materials and testing procedures.

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Keywords: SIST EN 12697-19:2020, bituminous mixtures, permeability test, vertical permeability, horizontal permeability, asphalt testing, road construction materials, bitumen specimens, permeability measurement, porous asphalt, pavement engineering, CEN standard, asphalt durability, permeability coefficient.

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 suit
...