EN 12697-40:2020
(Main)Bituminous mixtures - Test methods - Part 40: In situ drainability
Bituminous mixtures - Test methods - Part 40: In situ drainability
This document describes a method to determine the in situ relative hydraulic conductivity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road.
The test measures the ability to drain water (drainability) achieved in situ of a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time.
For the test to be valid, the surface of the test area should be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.
Asphalt - Prüfverfahren - Teil 40: In-situ-Durchlässigkeit
Dieses Dokument beschreibt ein Verfahren zur Bestimmung der relativen In-situ-Wasserdurchlässigkeit an festgelegten Punkten einer als wasserdurchlässig ausgelegten Deckschicht. Eine Abschätzung des durchschnittlichen Wertes (der Wasserdurchlässigkeit) der Deckschicht erfolgt durch den Mittelwert aus einer Anzahl von Bestimmungen in jedem Teilstück der betreffenden Straße.
Mit dieser Prüfung wird die Drainagefähigkeit (Durchlässigkeit) der eingebauten Deckschicht gemessen. Als solche kann sie als Nachweis verwendet werden, dass eine durchlässige Deckschicht nach dem Einbau die geforderten Eigenschaften hat. Die Prüfung kann auch später durchgeführt werden, um die Änderung der Durchlässigkeit mit der Zeit zu ermitteln.
Damit die Prüfung gültig ist, sollte die Oberfläche des Prüfbereiches sauber und frei von losen Bestandteilen sein. Die Messungen können entweder bei nasser oder bei trockener Straße, nicht jedoch bei Frost durchgeführt werden.
Mélanges bitumineux - Méthodes d'essai - Partie 40 : Drainabilité in situ
Ce document décrit une méthode permettant de déterminer la conductivité hydraulique relative in-situ, à certains endroits spécifiques d’un revêtement routier conçu pour être drainant. Une estimation de la valeur moyenne pour le revêtement est obtenue à partir de la valeur moyenne d’un certain nombre de déterminations sur chaque section de route.
L’essai sert à mesurer in-situ la capacité à drainer l’eau (drainabilité) d’un revêtement. En tant que tel, il peut être utilisé comme contrôle de conformité afin de garantir qu’une couche de surface drainante a les propriétés requises lors de la mise en œuvre. L’essai peut également servir ultérieurement à établir les variations de la capacité drainante avec le temps.
Pour que l’essai soit valable, il est recommandé que la surface de la zone d’essai soit propre et exempte de détritus. Les mesurages peuvent être effectués sur route sèche ou mouillée, mais pas sur route gelée.
Bitumenske zmesi - Preskusne metode - 40. del: Prepustnost vgrajene plasti (in situ)
General Information
Relations
Overview
The EN 12697-40:2020 standard, developed by CEN, specifies a test method for determining the in situ drainability of bituminous mixtures used in road surfacing. This test evaluates the relative hydraulic conductivity of permeable road surfaces at specific locations, measuring how effectively water drains through the pavement. Assessing in situ drainability is crucial for ensuring that permeable surfaces meet designed permeability requirements and for monitoring the change of drainage ability over time.
The standard supersedes the 2012 edition and extends applicability beyond hot mix asphalt to other bituminous mixtures. This reliable and standardized approach supports compliance checking, helps optimize road performance, and guides maintenance decision-making based on drainage characteristics.
Key Topics
Purpose and Scope
EN 12697-40:2020 focuses on determining the hydraulic conductivity of permeable road surfaces by measuring water outflow through the surface. It calculates an average value of relative hydraulic conductivity from several measurements on a road section.Test Principles
The test utilizes a radial-flow falling head permeameter placed on the pavement, measuring the time for 4 liters of water to flow through a defined annular area. The reciprocal of this outflow time, adjusted for apparatus resistance, yields the relative hydraulic conductivity.Apparatus Requirements
The permeameter is a specialized device with calibrated dimensions for consistent results. Key components include:- Transparent acrylic standpipe for water level observation
- Rubber ball plunger and sponge rubber base for watertight seal
- Stopwatch with 0.1-second accuracy (preferably sensor-activated)
- Standing board to uniformly apply pressure on the surface
Test Procedure
Measurements are made at ten marked locations spaced along the pavement width. The permeameter is loaded with clean water, air bubbles are removed, and water outflow times are recorded twice per location. The average outflow times are used in calculations.Calculations & Reporting
The relative hydraulic conductivity is calculated by subtracting the series resistance time from the average outflow time and then taking the reciprocal. The test report must document site conditions, ambient temperature, test equipment details, load applied, individual results, and the final conductivity value.Limitations
Tests must be performed on clean, unfrozen surfaces and can be conducted whether the surface is dry or wet. Precision data for this method are yet to be established.
Applications
EN 12697-40:2020 is essential for stakeholders involved in the design, construction, and maintenance of permeable bituminous pavements, including:
- Road construction professionals requiring compliance verification of permeable surface layers.
- Infrastructure asset managers monitoring the long-term drainage performance and degradation of permeable road surfaces.
- Transport authorities and environmental engineers aiming to reduce surface runoff and promote sustainable urban drainage.
- Quality control laboratories conducting standardized hydraulic conductivity assessments on-site.
By employing this standard, organizations can ensure road surfaces meet permeability specifications that help prevent water accumulation, improve driving safety, and promote environmental sustainability through reduced runoff.
Related Standards
- EN 13036-1 - Measurement of pavement surface macrotexture depth, complementing hydraulic conductivity assessments by evaluating texture influencing drainage.
- Other parts of the EN 12697 series - Covering bituminous mixture test methods to assess properties like stiffness, stability, and durability.
- International standards for permeability and hydraulic conductivity measurement methods in pavement engineering, for cross-referencing and extended quality assurance.
Keywords: EN 12697-40:2020, in situ drainability, bituminous mixtures, road surface permeability, hydraulic conductivity, permeable pavement testing, CEN standard, pavement drainage, permeameter test method, road construction materials.
Frequently Asked Questions
EN 12697-40:2020 is a standard published by the European Committee for Standardization (CEN). Its full title is "Bituminous mixtures - Test methods - Part 40: In situ drainability". This standard covers: This document describes a method to determine the in situ relative hydraulic conductivity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road. The test measures the ability to drain water (drainability) achieved in situ of a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time. For the test to be valid, the surface of the test area should be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.
This document describes a method to determine the in situ relative hydraulic conductivity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road. The test measures the ability to drain water (drainability) achieved in situ of a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time. For the test to be valid, the surface of the test area should be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.
EN 12697-40:2020 is classified under the following ICS (International Classification for Standards) categories: 93.080.20 - Road construction materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12697-40:2020 has the following relationships with other standards: It is inter standard links to EN 12697-40:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 12697-40:2020 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 12697-40:2012
Bitumenske zmesi - Preskusne metode - 40. del: Prepustnost vgrajene plasti (in
situ)
Bituminous mixtures - Test methods - Part 40: In situ drainability
Asphalt - Prüfverfahren - Teil 40: In-situ-Durchlässigkeit
Mélanges bitumineux - Méthodes d'essai - Partie 40 : Perméabilité en place
Ta slovenski standard je istoveten z: EN 12697-40:2020
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 12697-40
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20
English Version
Bituminous mixtures - Test methods - Part 40: In situ
drainability
Mélanges bitumineux - Méthodes d'essai - Partie 40 : Asphalt - Prüfverfahren - Teil 40: In-situ-
Perméabilité en place Durchlässigkeit
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 12697-40:2020 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 . 5
5 Apparatus . 5
5.1 Permeameter . 5
5.2 Standing board . 7
5.3 Stopwatch . 7
5.4 Thermometer . 7
5.5 Water . 7
6 Procedure. 7
6.1 Calibration . 7
6.2 Locations . 7
6.3 Measurement at each location . 8
7 Calculation . 8
8 Report . 9
9 Precision . 9
Annex A (normative) Apparatus calibration . 10
A.1 Application . 10
A.2 Volume calibration . 10
A.3 Series resistance time, r . 10
A.4 Parallel leakage time . 10
Bibliography . 12
European foreword
This document (EN 12697-40:2020) 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 12697-40:2012.
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;
— [ge] symbol for litre, “L” amended to l;
— [6.3.8] NOTE modified according to ISO/IEC Directives – Part 2:2016, 24.5;
— [Clause 8] Test report: bullet a) completed with ambient temperature.
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 describes a method to determine the in situ relative hydraulic conductivity, at specific
locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the
surfacing is obtained from the mean value of a number of determinations on each section of road.
The test measures the ability to drain water (drainability) achieved in situ of a surfacing. As such, it can
be used as a compliance check to ensure that a permeable surface course has the required properties
when it is laid. The test can also be used subsequently to establish the change of drainage ability with
time.
For the test to be valid, the surface of the test area should be clean and free from detritus.
Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.
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 13036-1, Road and airfield surface characteristics — Test methods — Part 1: Measurement of
pavement surface macrotexture depth using a volumetric patch technique
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 https://www.iso.org/obp/ui
3.1
outflow time
time (s) that elapses for an outflow of 4,0 l through the permeameter, between the meniscus at the 5 l
mark and when it falls to the 1 l mark
3.2
series resistance time
r
outflow time (s) that is determined when the permeameter is located so the outlet is clear of any
surfacing that could impede the exit of out-flowing water
Note 1 to entry: The method for calculating the series resistance time is given in Annex A.
Note 2 to entry: The series resistance time is subtracted from measurements of outflow time when the
permeameter is used on a surfacing of a pavement.
3.3
parallel leakage time
outflow time when the outlet is restricted by an impermeable surface
EN 12697-40:20
...
The article discusses a new test method, EN 12697-40:2020, which determines the in situ drainability of permeable road surfacing. The test measures the ability of the surfacing to drain water, and can be used to ensure that the surface meets the required properties when it is installed. It can also be used to assess changes in drainability over time. The test should be conducted on a clean and debris-free surface, and can be done when the road is wet or dry, but not when it is frozen.
記事タイトル：EN 12697-40:2020 - ビチュミナス混合物 - 試験方法 - 第40部：現地の排水性 記事内容：このドキュメントでは、透水性のある道路舗装材料の特定の場所における現地相対水理透水度を測定する方法について説明しています。道路の各セクションごとに複数回の測定結果の平均値から、舗装材料の平均値の推定値が得られます。 この試験は、現地での舗装材料の排水能力（排水性）を測定します。そのため、透水性のある表面層が敷設された際に要求される特性を確認するための適合性チェックとして使用することができます。この試験は、時間の経過とともに排水能力がどのように変化するかを後から確認するためにも使用できます。 試験が有効であるためには、試験エリアの表面が清潔でゴミがないことが重要です。道路が湿っているか乾いているかに関わらず測定が行われることができますが、凍結状態の道路では試験することができません。
기사 제목: EN 12697-40:2020 - 비트루민 믹스처 - 시험 방법 - 파트 40: 현장 배수성 기사 내용: 본 문서는 투과성을 가진 도로 포장재의 특정 위치에서의 현장 상대적 수리 투과성을 결정하는 방법을 설명한다. 각 도로 구간의 여러 측정값의 평균 값을 통해 포장재의 평균 값 추정이 이루어진다. 이 시험은 도로 포장재의 현장 배수 능력을 측정한다. 따라서, 현장에 설치된 투과성 표층이 요구되는 속성을 갖고있는지 확인하기 위한 준수성 검사로 사용될 수 있다. 또한 시간에 따른 배수 능력의 변화를 조사하기 위해서도 사용될 수 있다. 시험이 유효하려면 테스트 영역의 표면은 깨끗하고 이물질이 없어야 한다. 도로가 젖어 있을 때나 건조한 상태에서 측정할 수 있지만, 도로가 얼어 있는 경우에는 측정할 수 없다.
記事のタイトル: EN 12697-40:2020 - ビチューミナスミクスチャ - 試験方法 - 第40部: インシチュー排水能力 記事の内容: この文書では、透水性を持つ道路舗装材料の特定の位置でのインシチュー相対水理透水性を測定する方法について説明しています。道路の各セクションで行われる複数の測定結果の平均値から、舗装材料の平均値の推定値が得られます。 この試験は、道路舗装材料のインシチューでの水排水能力を測定します。そのため、インストール時に透水性表層コースが必要な特性を満たしているかを確認するためのコンプライアンスチェックとして使用することができます。また、時間とともに排水能力がどのように変化するかを評価するためにも使用できます。 試験が有効であるためには、試験エリアの表面が清潔でゴミなどがない状態である必要があります。道路が湿っている場合や乾いている場合には測定ができますが、凍結している場合には測定できません。
The article explains the EN 12697-40:2020 standard, which provides a method for determining the in situ drainability of permeable road surfaces. The test measures the ability of the surfacing to drain water and can be used to check if a surface meets the required properties during installation. The test can also be used to track changes in drainage ability over time. It is important for the test area to be clean and free from debris, and the test cannot be conducted on frozen roads.
기사 제목: EN 12697-40:2020 - 비티누스 혼합물 - 시험 방법 - 제40부: 현장 배수성 기사 내용: 본 문서는 투과성이 있는 도로 포장재의 특정 위치에서 현장 상대 유동성을 결정하는 방법을 설명합니다. 포장재의 평균 값 추정은 도로 각 구간의 여러 측정치의 평균 값을 통해 얻어집니다. 이 시험은 현장에서 표면이 배수되는 능력(배수성)을 측정합니다. 따라서 이 시험은 투과성 표면층이 설치될 때 요구 사항을 충족하는지 확인하기 위한 준수 검사로 사용될 수 있습니다. 시간 변화에 따른 배수 능력의 변화를 확인하기 위해 이 시험을 후속적으로 사용할 수도 있습니다. 시험이 유효하려면 시험 구역의 표면이 정리되고 잔류물이 없어야 합니다. 도로가 젖은 또는 건조한 상태에서 측정이 가능하지만, 도로가 얼어 있는 경우에는 시험을 진행할 수 없습니다.
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