EN 12697-36:2022

Bituminous mixtures - Test methods - Part 36: Determination of the thickness of bituminous pavement

This document describes two test methods for determining the thickness of bituminous pavement. The first method describes measurements carried out on one or more cores which have been drilled from the full depth of the slab or road structure (destructive method). The second method electro-magnetic (non-destructive) measurement are used.

Asphalt - Prüfverfahren - Teil 36: Bestimmung der Dicke von Asphalt-Konstruktionen

Dieses Dokument beschreibt zwei Prüfverfahren zur Bestimmung der Dicke von Fahrbahnbefestigungen aus Asphalt. Das erste Verfahren beschreibt Messungen, die an einem oder mehreren aus einer Fahrbahnplatte oder einem Oberbau in voller Dicke entnommenen Bohrkernen vorgenommen werden (zerstörendes Verfahren). Das zweite Verfahren wendet elektromagnetische (zerstörungsfreie) Messungen an.

Mélanges bitumineux - Méthodes d’essai - Partie 36 : Méthode d’évaluation d’épaisseur d’un revêtement bitumineux

Le présent document décrit deux méthodes d’essai pour la détermination de l’épaisseur d’un revêtement bitumineux. La première méthode décrit des mesures réalisées sur une ou plusieurs carottes prélevées sur toute la profondeur de la plaque ou de la structure de chaussée (méthode destructive). La deuxième méthode repose sur des mesures électromagnétiques (méthode non destructive).

Bitumenske zmesi - Preskusne metode - 36. del: Ugotavljanje debeline bitumenskega vozišča

Ta dokument opisuje preskusni metodi za ugotavljanje debeline bitumenskega vozišča. Prva metoda opisuje meritve, izvedene na enem ali več jedrih, ki so bila izvrtana iz celotne globine plošče ali cestne konstrukcije (destruktivna metoda). Pri drugi metodi se uporabljajo elektromagnetne (nedestruktivne) meritve.

General Information

• Status: Published
• Publication Date: 05-Apr-2022
• Withdrawal Date: 30-Oct-2022
• 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: 06-Apr-2022
• Due Date: 20-Oct-2022
• Completion Date: 06-Apr-2022
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Ref Project: SIST EN 12697-36:2022 - Bituminous mixtures - Test methods - Part 36: Determination of the thickness of bituminous pavement

Relations

• Replaces: EN 12697-36:2003 - Bituminous mixtures - Test methods for hot mix asphalt - Part 36: Determination of the thickness of a bituminous pavement
• Effective Date: 08-Jun-2022

Overview

EN 12697-36:2022 (CEN) defines standardized test methods for determining the thickness of bituminous pavement. The standard specifies two complementary approaches: a destructive method based on measuring drilled cores, and a non‑destructive electromagnetic method (eddy‑current principle) using an antipole. It supersedes EN 12697-36:2003 and is intended for use in road construction materials testing and pavement quality control.

Key topics and requirements

• Two measurement methods
  • Destructive (core-based): Drill full‑depth cores (recommended diameters 100 mm or 150 mm). Measure thickness perpendicular to the upper plane to the nearest 1 mm. Take four evenly spaced measurements around the core diameter and report the average.
  • Non‑destructive (electromagnetic): Use an electromagnetic apparatus with an antipole (aluminium foil/sheet) fixed on the road/subgrade. Readings to 1 mm resolution; calibration with calibration rings and at least one destructive check is recommended because aggregate electrical/magnetic properties can affect results.
• Specimen and measurement controls
  • Cores must be representative, drilled through the full pavement, axis within 5° of normal, and free from drilling damage. Defective cores must be discarded.
  • For multilayer pavements: mark four perpendicular lines, identify layer boundaries, and measure cumulative and individual layer thicknesses.
  • If core wall angle >5°, measure relative to vertical with the core top face horizontal.
• Apparatus
  • Metal rule or tape and calliper gauge (max permissible error 1 mm); approved jigs; electromagnetic equipment per manufacturer guidance.
• Reporting & precision
  • Required report items include sample ID, sampling date/place, method used, average layer thickness (1 mm), deviations, observations and test date.
  • Precision: repeatability 1.2 mm (N=10); reproducibility 1.8 mm (N=22).

Applications and users

• Practical uses:
  • Quality control during asphalt paving and acceptance testing
  • Verification of layer thickness for design conformity and contract compliance
  • Rehabilitation planning (mill-and-overlay decisions) and forensic investigations
  • On‑site rapid surveys using non‑destructive techniques with spot destructive checks
• Typical users:
  • Pavement engineers, materials laboratories, construction contractors, road authorities, inspection bodies, and researchers in road materials and pavement design.

Related standards

• Part of the EN 12697 series (Bituminous mixtures - test methods). Use EN 12697-36 in conjunction with other EN 12697 parts for comprehensive asphalt testing, and follow equipment manufacturer calibration procedures and local CEN-adopted national standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2022
Nadomešča:
SIST EN 12697-36:2004
Bitumenske zmesi - Preskusne metode - 36. del: Ugotavljanje debeline
bitumenskega vozišča
Bituminous mixtures - Test methods - Part 36: Determination of the thickness of
bituminous pavement
Asphalt - Prüfverfahren - Teil 36: Bestimmung der Dicke von Asphalt-Konstruktionen
Mélanges bitumineux - Méthodes d´essai - Partie 36 : Méthode dévaluation d'épaisseur
d'un revêtement bitumineux
Ta slovenski standard je istoveten z: EN 12697-36:2022
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 12697-36
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2022
EUROPÄISCHE NORM
ICS 93.080.20 Supersedes EN 12697-36:2003
English Version
Bituminous mixtures - Test methods - Part 36:
Determination of the thickness of bituminous pavement
Mélanges bitumineux - Méthodes d'essai - Partie 36 : Asphalt - Prüfverfahren - Teil 36: Bestimmung der
Méthode d'évaluation d'épaisseur d'un revêtement Dicke von Asphalt-Konstruktionen
bitumineux
This European Standard was approved by CEN on 21 February 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12697-36:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Apparatus . 4
5 Test specimens . 5
6 Procedure. 6
6.1 Destructive measurement . 6
6.2 Electromagnetic measurement . 7
7 Test report . 9
8 Precision . 9
European foreword
This document (EN 12697-36:2022) 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 October 2022, and conflicting national standards shall be withdrawn
at the latest by October 2022.
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 12697-36:2003.
The main changes compared to the previous edition are listed below:
— the title no longer refers to hot mix asphalt;
— general editorial update according to current standard template;
— addition of Clause 2. Normative references according to CEN/CENELEC Internal Regulations, Part 3:2019;
— addition of Clause 3. Terms and definitions according to CEN/CENELEC Internal Regulations, Part 3:2019;
— Clause 4, title amended to “Apparatus” due to the introduction of Clause 2 and 3;
— Clause 4, introduction of Figure 1. Example of calliper with one extended leg;
— 4.4, NOTE has been transformed into main text;
— Clause 5, amended title to “Test specimens” due to the introduction of Clause 2 and 3;
— Clause 5, NOTE has been transformed into main text;
— Clause 6, title amended to “Procedure” due to the introduction of Clause 2 and 4;
— 6.1.4, NOTE has been transformed into main text;
— 6.2, editorial corrections of keys to Figure 3 and Figure 4;
— addition of Clause 7. Test report, due to the introduction of Clause 2 and 3;
— Clause 7, revision of data to be reported according to CEN/CENELEC Internal Regulations, Part 3:2019;
— addition of Clause 8. Precision, due to the introduction of Clause 2 and 3.
A list of all parts in the EN 12697 series can be found on the CEN website.
Any feedback and questions on this document should be directed to the users’ national standards body. A
complete listing of these bodies 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, Swi
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