EN 12697-14:2020

Bituminous mixtures - Test methods - Part 14: Water content

This document describes a test method for the determination of the water content of samples of bituminous mixtures. The test method is suitable for checking conformity to a product specification, where required.

Asphalt - Prüfverfahren - Teil 14: Wassergehalt

Dieses Dokument legt ein Verfahren zur Bestimmung des Wassergehaltes in Asphaltproben fest. Das beschriebene Prüfverfahren ist, falls erforderlich, zur Kontrolle der Übereinstimmung mit einer Produktspezifikation geeignet.

Mélanges bitumineux - Méthodes d'essai - Partie 14 : Teneur en eau

Ce document décrit une méthode d’essai permettant de déterminer la teneur en eau des échantillons de mélanges bitumineux. La méthode d’essai est applicable, le cas échéant pour vérifier la conformité des caractéristiques spécifiées d’un produit.

Bitumenske zmesi - Preskusne metode - 14. del: Delež vode

General Information

• Status: Published
• Publication Date: 25-Feb-2020
• Withdrawal Date: 30-Aug-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: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 26-Feb-2020
• Due Date: 02-Feb-2021
• Completion Date: 26-Feb-2020
• Ref Project: SIST EN 12697-14:2020 - Bituminous mixtures - Test methods - Part 14: Water content

Relations

• Replaces: EN 12697-14:2000/AC:2001 - Bituminous mixtures - Test methods for hot mix asphalt - Part 14: Water content
• Effective Date: 04-Mar-2020
• Replaces: EN 12697-14:2000 - Bituminous mixtures - Test methods for hot mix asphalt - Part 14: Water content
• Effective Date: 22-Aug-2018
• Revised: prEN 12697-14 - Bituminous mixtures - Test methods - Part 14: Water content
• Effective Date: 21-Feb-2024

Overview

EN 12697-14:2020 - Bituminous mixtures: Test methods - Part 14: Water content (CEN) specifies a laboratory procedure to determine the water content of bituminous mixtures. The method is intended for conformity checking against product specifications and is applicable across asphalt types (not limited to hot mix asphalt). The standard describes sample preparation, required apparatus (notably the hot extractor and reflux condenser), the solvent-based extraction procedure and result reporting.

Key topics and technical requirements

• Scope & purpose: Quantitative determination of water content in bituminous mixtures for quality control and specification compliance.
• Sampling reference: Sample reduction and preparation follow EN 12697-27 where applicable.
• Pre-test oven drying: A test portion is oven-dried at (110 ± 10) °C for 1 hour. If mass loss is < 0.1% the result may be recorded as < 0.1% water content.
• Hot extractor (solvent) method:
  • Use a hot extractor pot with a gauze container, receiver (12.5 ml graduated), and a water-cooled reflux condenser.
  • Solvents must dissolve bitumen, allow water recovery by distillation, remain stable in water and have boiling point ≤ 85 °C.
  • Continue reflux until water volume in receiver is constant for at least 5 minutes; measure volume/mass (assume 1 ml = 1 g).
• Apparatus & calibration: Equipment should be calibrated and traceable (see EN 12697-38 for common equipment/calibration).
• Expression of results: Report water content as percent by mass to the nearest 0.1%.
• Health & environmental warnings: Solvents such as dichloromethane may be required; they are hazardous and regulated. National solvent choice should comply with regulatory and environmental obligations (e.g., Montreal Protocol implications).
• Precision: No precision statement is provided in this part.

Practical applications and users

EN 12697-14:2020 is practical for:

• Quality control laboratories performing asphalt production or paving acceptance testing.
• Asphalt producers and contractors monitoring moisture in mixes before transport or compaction.
• Specifiers and materials engineers ensuring mixture compliance with contractual or regulatory water-content limits.
• Regulatory bodies and test houses validating conformity of delivered bituminous materials.

This test helps detect excess moisture that can affect compaction, workability and long-term pavement performance.

Related standards

• EN 12697-27 - Bituminous mixtures - Test methods - Part 27: Sampling (sample preparation)
• EN 12697-38 - Bituminous mixtures - Test methods - Part 38: Common equipment and calibration
• EN 12697 series - broader collection of asphalt test methods

Keywords: EN 12697-14:2020, water content, bituminous mixtures, hot extractor method, asphalt testing, test method, solvent extraction, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2020
Nadomešča:
SIST EN 12697-14:2002
SIST EN 12697-14:2002/AC:2002
Bitumenske zmesi - Preskusne metode - 14. del: Delež vode
Bituminous mixtures - Test methods - Part 14: Water content
Asphalt - Prüfverfahren - Teil 14: Wassergehalt
Mélanges bitumineux - Méthodes d'essai - Partie 14: Teneur en eau
Ta slovenski standard je istoveten z: EN 12697-14:2020
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 12697-14
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-14:2000
English Version
Bituminous mixtures - Test methods - Part 14: Water
content
Mélanges bitumineux - Méthodes d'essai - Partie 14 : Asphalt - Prüfverfahren - Teil 14: Wassergehalt
Teneur en eau
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 12697-14:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Reagents . 5
5 Apparatus . 6
6 Preparation of laboratory samples of bituminous mixtures . 9
7 Procedure. 9
8 Expression of results . 9
9 Test report . 9
10 Precision . 10
Bibliography . 11

European foreword
This document (EN 12697-14:2020) 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 12697-14:2000.
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] NOTEs modified or adjusted to normal text where appropriate according to ISO/IEC Directives
– Part 2:2016, 24.5;
— European foreword: reference to the product standards for the applicability of this test method
deleted;
— [Clause 2] reference to prEN 12697-27:2000, Bituminous mixtures - Test methods for hot mix asphalt
– Part 27: Sampling replaced by EN 12697-27 Bituminous mixtures - Test methods – Part 27:
Sampling;
— [Clause 3] missing clause, (3 Terms and definitions), introduced. Following clauses renumbered
accordingly;
— [Clause 6] reference to prEN 12697-27:2000 replaced by EN 12697-27;
— [figures] moved and placed next to where they are referred to in Clause 5. For better resolution the
corresponding figures from EN 12697-1 has been adopted;
— [Bibliography] reference to EN 12697-1:2000 deleted. EN 12697-38 added.
A list of all parts in the EN 12697 series can be found on the CEN website.
WARNING — The method described in this standard may require the use of dichloromethane
(methylene chloride), this solvent is hazardous to health and is subject to occupational limits as detailed
in relevant legislation and regulations.
Exposure levels are related to both handling procedures and ventilation provision and it is emphasized
that adequate training should be given to staff employed in the usage of these substances.
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.
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