prEN 12697-8
(Main)Bituminous mixtures - Test methods - Part 8: Determination of void characteristics of bituminous specimens
Bituminous mixtures - Test methods - Part 8: Determination of void characteristics of bituminous specimens
This European Standard describes a procedure for calculating volumetric characteristics of a compacted bituminous specimen: the air voids content (Vm) and the voids content in the mineral aggregate filed with binder (VFB) and the voids content in the mineral aggregate filed with binder and additives (VFBad) for the case of mixtures containing additives in their composition.
NOTE For mixtures with water in their composition (e.g. mixtures produced with bituminous emulsion or foamed bitumen) the volumetric characteristics determined according to the present standard refers to “dry” bituminous specimens (i.e. compacted mixtures whose voids are exclusively filled with air).
The method is suitable for specimens which are laboratory compacted or specimens cut from the pavement after placement and compacting, either by coring or sawing.
These volumetric characteristics can be used as mix design criteria or as parameters for evaluating the mixture after placing and compacting in the road.
Asphalt - Prüfverfahren - Teil 8: Bestimmung von volumetrischen Charakteristiken von Asphalt-Probekörpern
Diese Europäische Norm beschreibt ein Verfahren zur Berechnung von volumetrischen Charakteristiken eines verdichteten Asphalt-Probekörpers: des Hohlraumgehalts (Vm), des Bindemittelausfüllungsgrads (VFB) und – für Gemische, die Zusatzstoffe enthalten – des Bindemittel- und Zusatzstoffausfüllungsgrads (VFBad).
ANMERKUNG Für Gemische, die Wasser enthalten (z. B. Gemische, die mit Bitumenemulsion oder Schaumbitumen hergestellt werden), beziehen sich die volumetrischen Charakteristiken nach der vorliegenden Norm auf „trockene“ Bitumenproben (d. h. verdichtete Gemische, deren Hohlräume ausschließlich mit Luft gefüllt sind).
Dieses Verfahren ist für im Labor verdichtete Probekörper sowie für Probekörper, die durch Bohren oder Sägen einer eingebauten und verdichteten Fahrbahndecke entnommen wurden, geeignet.
Diese volumetrischen Charakteristiken können als Kriterium bei einer Eignungsprüfung des Mischguts oder als Parameter für seine Beurteilung nach dem Einbau und der Verdichtung in der Straße verwendet werden.
Mélanges bitumineux - Méthodes d'essai - Partie 8: Détermination des pourcentages de vides caractéristiques des éprouvettes bitumineuses
La présente Norme européenne décrit la procédure permettant de calculer des caractéristiques volumétriques d’une éprouvette bitumineuse compactée : le pourcentage de vides (Vm) et le pourcentage de vides du squelette granulaire comblés par le liant (VFB), et le pourcentage de vides du squelette granulaire comblés par le liant et les additifs (VFBad) pour les mélanges contenant des additifs dans leur composition.
NOTE Pour mélanges composés d'eau (par exemple des mélanges produits avec de l'émulsion bitumineuse ou du bitume cellulaire), les caractéristiques volumétriques déterminées conformément à la présente norme se réfèrent aux éprouvettes bitumineuses "sèches" (par exemple des mélanges compactés dont les vides sont exclusivement comblés par de l'air).
Cette méthode peut être utilisée pour les éprouvettes compactées en laboratoire ou prélevées dans la chaussée par carottage ou sciage après répandage et compactage.
Ces caractéristiques volumétriques peuvent être employées comme critères de formulation ou comme paramètres d’évaluation du mélange après son répandage et son compactage dans la chaussée.
Bitumenske zmesi - Preskusne metode - 8. del: Ugotavljanje značilnosti votlin v bitumenskih preskušancih
General Information
- Status
- Not Published
- Publication Date
- 02-Aug-2016
- Withdrawal Date
- 02-Feb-2017
- Technical Committee
- CEN/TC 227 - Road materials
- Drafting Committee
- CEN/TC 227/WG 1 - Bituminous mixtures
- Current Stage
- 4098 - Decision to abandon - Enquiry
- Start Date
- 11-Dec-2015
- Completion Date
- 21-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 19-Jan-2023
Overview
prEN 12697-8 (CEN) specifies test procedures for determining the volumetric void characteristics of compacted bituminous specimens. The standard defines how to calculate the air voids content (Vm), the voids in the mineral aggregate filled with binder (VFB), and the voids in the mineral aggregate filled with binder and additives (VFBad) for mixtures containing additives. Values are reported for “dry” specimens when mixtures contain water (e.g., bitumen emulsions or foamed bitumen). The method applies to laboratory-compacted specimens and to specimens cut from in‑situ pavements (coring or sawing).
Key topics and requirements
- Parameters defined
- Air voids (Vm): volume of air pockets expressed as % of specimen volume.
- VFB: percentage of VMA filled with binder (no additives).
- VFBad: VFB accounting for binder plus additives (when present).
- Primary calculation
- Vm is calculated from the mixture maximum density (ρm) and specimen bulk density (ρb):
- Vm = (ρm − ρb) / ρm × 100% (reported to 0.1% by volume)
- Vm is calculated from the mixture maximum density (ρm) and specimen bulk density (ρb):
- Specimen condition
- For mixes containing water, densities and derived volumetrics refer to the specimen in a dry state (voids filled exclusively with air).
- Precision and repeatability
- Derived from EN 12697-5 (maximum density) and EN 12697-6 (bulk density).
- Example precision statements provided: repeatability r ≈ 1.1% (by volume); reproducibility R ≈ 2.2% (by volume).
- Reporting requirements
- Origin and identification of specimen, mixture type and additives, specimen dimensions (if measured), methods used for densities, density values (Mg/m³), and calculated Vm, VFB or VFBad.
Applications
- Mix design: use Vm, VFB and VFBad as objective mix-design criteria to optimize durability, rutting resistance and permeability.
- Quality control and acceptance: assess compaction quality and conformity of laid asphalt layers after placement.
- Forensic and performance testing: evaluate in‑situ cores to investigate pavement distress or constructability issues.
- Users: pavement engineers, materials laboratories, highway authorities, contractors, and consultants involved in asphalt mix design, quality assurance and research.
Related standards
- EN 12697-5 - Determination of the maximum density
- EN 12697-6 - Determination of bulk density of bituminous specimens (hydrostatic method)
- Other parts of EN 12697 series relevant to sampling, specimen preparation and performance testing (e.g., compaction methods and binder content tests).
Keywords: void characteristics, air voids content, VFB, VFBad, bituminous mixtures, asphalt testing, mix design, quality control, CEN EN 12697-8.
Frequently Asked Questions
prEN 12697-8 is a draft published by the European Committee for Standardization (CEN). Its full title is "Bituminous mixtures - Test methods - Part 8: Determination of void characteristics of bituminous specimens". This standard covers: This European Standard describes a procedure for calculating volumetric characteristics of a compacted bituminous specimen: the air voids content (Vm) and the voids content in the mineral aggregate filed with binder (VFB) and the voids content in the mineral aggregate filed with binder and additives (VFBad) for the case of mixtures containing additives in their composition. NOTE For mixtures with water in their composition (e.g. mixtures produced with bituminous emulsion or foamed bitumen) the volumetric characteristics determined according to the present standard refers to “dry” bituminous specimens (i.e. compacted mixtures whose voids are exclusively filled with air). The method is suitable for specimens which are laboratory compacted or specimens cut from the pavement after placement and compacting, either by coring or sawing. These volumetric characteristics can be used as mix design criteria or as parameters for evaluating the mixture after placing and compacting in the road.
This European Standard describes a procedure for calculating volumetric characteristics of a compacted bituminous specimen: the air voids content (Vm) and the voids content in the mineral aggregate filed with binder (VFB) and the voids content in the mineral aggregate filed with binder and additives (VFBad) for the case of mixtures containing additives in their composition. NOTE For mixtures with water in their composition (e.g. mixtures produced with bituminous emulsion or foamed bitumen) the volumetric characteristics determined according to the present standard refers to “dry” bituminous specimens (i.e. compacted mixtures whose voids are exclusively filled with air). The method is suitable for specimens which are laboratory compacted or specimens cut from the pavement after placement and compacting, either by coring or sawing. These volumetric characteristics can be used as mix design criteria or as parameters for evaluating the mixture after placing and compacting in the road.
prEN 12697-8 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.
prEN 12697-8 has the following relationships with other standards: It is inter standard links to CEN ISO/TR 11827:2016, EN 12697-8:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
prEN 12697-8 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2014
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ELWXPHQVNLKSUHVNXãDQFLK
Bituminous mixtures - Test methods - Part 8: Determination of void characteristics of
bituminous specimens
Asphalt - Prüfverfahren - Teil 8: Bestimmung von volumetrischen Charakteristiken von
Asphalt-Probekörpern
Mélanges bitumineux - Méthodes d'essai - Partie 8: Détermination des pourcentages de
vides caractéristiques des éprouvettes bitumineuses
Ta slovenski standard je istoveten z: prEN 12697-8
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.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 93.080.20 Will supersede EN 12697-8:2003
English Version
Bituminous mixtures - Test methods - Part 8: Determination of
void characteristics of bituminous specimens
Matériaux enrobés - Méthodes d'essai - Partie 8: Asphalt - Prüfverfahren - Teil 8: Bestimmung von
Détermination de la teneur en poches d'air des matériaux volumetrischen Charakteristiken von Asphalt-Probekörpern
bitumineux
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 227.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12697-8:2014 E
worldwide for CEN national Members.
Contents
Page
Foreword .3
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
4 Determination of the air voids content (V ) .7
m
4.1 Principle .7
4.2 Calculation .7
4.3 Precision .7
4.4 Test report .8
5 Determination of the percentage of the voids in the mineral aggregate filled with binder
and with additives, if any (VFB) .8
5.1 Principle .8
5.2 Calculation .9
5.2.1 Mixtures without additives .9
5.2.2 Mixtures with additives .9
5.3 Precision . 10
5.4 Test report . 10
Bibliography . 12
Foreword
This document (prEN 12697-8:2014) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12697-8:2003.
The following is a list of significant technical changes since the previous edition:
Title changed to allow application to warm mix, half-warm mix and cold mix asphalts;
alternative procedures and calculations added for mixtures including additives;
clarification added when densities need to be of dry mixture;
clarification that specimens cut from the pavement can be by either coring or sawing;
dimension of specimen (if measured) added to results;
“v/v” and “m/m” replaced by “by volume” and “by mass” for clarity.
This European Standard is one of a series of standards as listed below.
EN 12697-1, Bituminous mixtures — Test methods for hot mix asphalt — Part 1: Soluble binder content
EN 12697-2, Bituminous mixtures — Test methods for hot mix asphalt — Part 2: Determination of particle size
distribution
EN 12697-3, Bituminous mixtures — Test methods for hot mix asphalt — Part 3: Binder recovery: Rotary
evaporator
EN 12697-4, Bituminous mixtures — Test methods for hot mix asphalt — Part 4: Binder recovery:
Fractionating column
EN 12697-5, Bituminous mixtures — Test methods for hot mix asphalt — Part 5: Determination of the
maximum density
EN 12697-6, Bituminous mixtures — Test methods for hot mix asphalt — Part 6: Determination of bulk density
of bituminous specimen
EN 12697-7, Bituminous mixtures — Test methods for hot mix asphalt — Part 7: Determination of the bulk
density of bituminous specimens by gamma rays
EN 12697-8, Bituminous mixtures — Test methods for hot mix asphalt — Part 8: Determination of void
characteristics of bituminous specimens
EN 12697-10, Bituminous mixtures — Test methods for hot mix asphalt — Part 10: Compactibility
EN 12697-11, Bituminous mixtures — Test methods for hot mix asphalt — Part 11: Determination of the
compatability between aggregate and bitumen
EN 12697-12, Bituminous mixtures — Test methods for hot mix asphalt — Part 12: Determination of the water
sensitivity of bituminous specimens
EN 12697-13, Bituminous mixtures — Test methods for hot mix asphalt — Part 13: Temperature
measurement
EN 12697-14, Bituminous mixtures — Test methods for hot mix asphalt — Part 14: Water content
EN 12697-15, Bituminous mixtures — Test methods for hot mix asphalt — Part 15: Determination of the
segregation sensitivity
EN 12697-16, Bituminous mixtures — Test methods for hot mix asphalt — Part 16: Abrasion by studded tyres
EN 12697-17, Bituminous mixtures — Test methods for hot mix asphalt — Part 17: Particle loss of porous
asphalt specimen
prEN 12697-18, Bituminous mixtures — Test methods for hot mix asphalt — Part 18: Binder drainage
EN 12697-19, Bituminous mixtures — Test methods for hot mix asphalt — Part 19: Permeability of specimen
EN 12697-20, Bituminous mixtures — Test methods for hot mix asphalt — Part 20: Indentation using cube or
cylindrical specimen (CY)
EN 12697-21, Bituminous mixtures — Test methods for hot mix asphalt — Part 21: Indentation using plate
specimens
EN 12697-22, Bituminous mixtures — Test methods for hot mix asphalt — Part 22: Wheel tracking
prEN 12697-23, Bituminous mixtures — Test methods for hot mix asphalt — Part 23: Determination of the
indirect tensile strength of bituminous specimens
EN 12697-24, Bituminous mixtures — Test methods for hot mix asphalt — Part 24: Resistance to fatigue
EN 12697-25, Bituminous mixtures — Test methods for hot mix asphalt — Part 25: Cyclic compression test
EN 12697-26, Bituminous mixtures — Test methods for hot mix asphalt — Part 26: Stiffness
EN 12697-27, Bituminous mixtures — Test methods for hot mix asphalt — Part 27: Sampling
EN 12697-28, Bituminous mixtures — Test methods for hot mix asphalt — Part 28: Preparation of samples for
determining binder content, water content and grading
EN 12697-29, Bituminous mixtures — Test methods for hot mix asphalt — Part 29: Determination of the
dimensions of bituminous specimen
EN 12697-30, Bituminous mixtures — Test methods for hot mix asphalt — Part 30: Specimen preparation by
impact compactor
EN 12697-31, Bituminous mixtures — Test methods for hot mix asphalt — Part 31: Specimen preparation by
gyratory compactor
EN 12697-32, Bituminous mixtures — Test methods for hot mix asphalt — Part 32: Laboratory compaction of
bituminous specimen by vibratory compactor
EN 12697-33, Bituminous mixtures — Test methods for hot mix asphalt — Part 33: Specimen prepared by
roller compactor
EN 12697-34, Bituminous mixtures — Test methods for hot mix asphalt — Part 34: Marshall test
EN 12697-35, Bituminous mixtures — Test methods for hot mix asphalt — Part 35: Laboratory mixing
EN 12697-36, Bituminous mixtures — Test methods for hot mix asphalt — Part 36: Method for the
determination of the thickness of a bituminous pavement
EN 12697-37, Bituminous mixtures — Test methods for hot mix asphalt — Part 37: Hot sand test for the
adhesivity of binder on precoated chippings for HRA
EN 12697-38, Bituminous mixtures — Test methods for hot mix asphalt — Part 38: Common equipment and
calibration
EN 12697-39, Bituminous mixtures — Test methods for hot mix asphalt — Part 39: Binder content by ignition
EN 12697-40, Bituminous mixtures — Test methods for hot mix asphalt — Part 40: In situ drainability
EN 12697-41, Bituminous mixtures — Test methods for hot mix asphalt — Part 41: Resistance to de-icing
fluids
EN 12697-42, Bituminous mixtures — Test methods for hot mix asphalt — Part 42: Amount of foreign matters
in reclaimed asphalt
EN 12697-43, Bituminous mixtures — Test methods for hot mix asphalt — Part 43: Resistance to fuel
EN 12697-44, Bituminous mixtures — Test methods for hot mix asphalt — Part 44: Crack propagation by
semi-circular bending test
EN 12697-45, Bituminous mixtures — Test methods for hot mix asphalt — Part 45: Saturati
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