EN 1367-5:2011

Tests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to thermal shock

This European Standard specifies methods for the determination of resistance to thermal shock of aggregates, subject to heating and drying in the production of hot bituminous mixtures.
This standard describes the reference method use for type testing and in case of dispute. For the purpose of type testing and in case of dispute only the reference method should be used. For other purposes, in particular factory production control, other methods may be used provided than an appropriate working relationship with the reference method has been established.

Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 5: Bestimmung des Widerstandes gegen Hitzebeanspruchung

Diese Europäische Norm legt Verfahren für die Bestimmung des Widerstands gegen Hitzebeanspruchung von Gesteinskörnungen fest, die bei der Herstellung von heißen bitumenhaltigen Mischungen Erhitzung und Trocknung ausgesetzt sind.
Diese Norm legt das für die Erstprüfung und in Streitfällen anzuwendende Referenzverfahren fest. Für den Zweck der Erstprüfung und in Streitfällen sollte nur das Referenzverfahren angewendet werden. Für andere Zwecke, speziell im Rahmen der werkseigenen Produktionskontrolle, dürfen andere Verfahren angewendet werden, sofern ein ausreichender Zusammenhang zum Referenzverfahren nachgewiesen wurde.

Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 5: Détermination de la résistance au choc thermique

La présente Norme européenne spécifie les méthodes permettant de déterminer la résistance au choc
thermique des granulats chauffés et séchés lors de la production des mélanges hydrocarbonés à chaud.
Cette norme décrit la méthode de référence utilisée pour les essais de type initiaux et en cas de litige. Pour les
besoins des essais de type initiaux et en cas de désaccord, il convient de n’utiliser que la méthode de référence.
Dans les autres cas, en particulier pour la maîtrise de la production en usine, d’autres méthodes peuvent être
utilisées sous réserve qu’une corrélation appropriée avec la méthode de référence ait été établie.

Preskusi lastnosti agregatov zaradi termičnih in vremenskih vplivov - 5. del: Določevanje odpornosti proti temperaturnemu šoku

Ta evropski standard opredeljuje metode določanja odpornosti agregatov, ki so pri proizvodnji vročih bitumenskih zmesi izpostavljeni segrevanju in sušenju, proti termalnemu šoku. Ta standard opisuje uporabo referenčne metode pri tipskem preskušanju in v primeru spora. Za namene tipskega preskušanja in v primeru spora se uporablja le referenčna metoda. Za druge namene, zlasti za nadzor nad tovarniško proizvodnjo, se lahko uporabljajo druge metode, pod pogojem, da je vzpostavljen primeren delovni odnos z referenčno metodo.

General Information

• Status: Published
• Publication Date: 18-Jan-2011
• Withdrawal Date: 30-Jul-2011
• ICS: 91.100.15 - Mineral materials and products
• ICS: 93.080.20 - Road construction materials
• Technical Committee: CEN/TC 154 - Aggregates
• Drafting Committee: CEN/TC 154/SC 6 - Test methods
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2022
• Completion Date: 02-Dec-2022
• Mandate: M/125 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on aggregates
• Ref Project: SIST EN 1367-5:2011 - Tests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to thermal shock

Relations

• Replaces: EN 1367-5:2002 - Tests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to thermal shock
• Effective Date: 22-Jan-2011

Overview

EN 1367-5:2011 is a European standard developed by CEN that defines the test methods for determining the resistance of aggregates to thermal shock. This standard focuses on aggregates exposed to heating and drying processes typical in the production of hot bituminous mixtures. Thermal shock resistance assessment is critical because aggregates subjected to rapid temperature changes may experience degradation, impacting the durability and performance of construction materials.

The standard establishes a reference test method suitable for type testing and resolution of disputes. Alternative test methods can be used for factory production control if correlated appropriately with the reference method, ensuring flexible yet reliable quality control in aggregate testing.

Key Topics

• Scope: Specifies methods to assess aggregate resistance to thermal shock-modeling exposure to around 700 °C for 3 minutes, simulating real-world heating conditions in hot mix asphalt manufacturing.
• Principle: Compares fragmentation resistance between heated (thermal shocked) and unheated aggregate samples using established mechanical testing methods (e.g., Los Angeles test).
• Sampling & Preparation: Samples prepared per EN 932-1 and EN 1097-2 standards; involves washing, drying to constant mass, and soaking before heating.
• Apparatus: Requires specialized equipment including a radiation-heated furnace, heat resistant test plates, specific sieves, balances, and drying ovens to ensure testing consistency.
• Procedure:
  • Aggregate samples are soaked in water, dried to surface-dry state, then heated to 700 °C for 3 minutes in increments of 1,000 g.
  • Samples are then cooled and sieved, and the percentage of particles passing a 5 mm sieve is measured to determine fragmentation caused by thermal shock.
  • Mechanical strength tests (Los Angeles or impact tests) are performed on both heated and unheated samples.
• Calculations:
  • Undersize percentage quantifies mass loss through the 5 mm sieve due to thermal shock.
  • Strength loss is calculated by the difference between mechanical test results on heated versus unheated aggregates.
• Test Report: Must include test reference, aggregate type, size fraction, undersize percentage, strength loss results, test date, and laboratory identification.

Applications

• Quality Control of Aggregates: Ensures that aggregates used in hot bituminous mixtures resist thermal degradation, reducing premature failure of pavements and infrastructure.
• Type Testing: Used by manufacturers and testing labs for certification and conformity assessment of aggregate types under thermal stress conditions.
• Dispute Resolution: Provides a standardized and accepted method to resolve conflicts related to aggregate thermal shock resistance performance.
• Factory Production Control: Adaptable for daily quality monitoring if alternate methods are validated against the reference test.
• Material Selection in Construction: Helps engineers specify aggregates with adequate thermal shock resistance for applications involving elevated temperatures such as asphalt and roofing materials.

Related Standards

EN 1367-5:2011 forms part of a comprehensive series addressing thermal and weathering properties of aggregates, complementing the following standards:

• EN 1367-1: Determination of resistance to freezing and thawing
• EN 1367-2: Magnesium sulfate test
• EN 1367-3: Boiling test for “Sonnenbrand basalt”
• EN 1367-4: Determination of drying shrinkage
• EN 1367-6: Resistance to freezing and thawing in presence of salt (NaCl)

Other relevant aggregate testing standards linked with EN 1367-5 include:

• EN 932-1 & EN 932-5: Sampling and equipment requirements for general properties of aggregates
• EN 1097-2: Tests for mechanical and physical properties, including resistance to fragmentation
• ISO 3310-2: Specifications for test sieves used in particle size analysis

Summary

EN 1367-5:2011 is an essential standard for assessing thermal shock resistance of aggregates subjected to high temperature exposure in bituminous mix production. By defining precise test procedures, apparatus, and reporting requirements, it ensures reliable evaluation of aggregate durability under thermal stress. This standard supports manufacturers, testing laboratories, and engineers in producing and selecting high-quality aggregates that maintain their integrity and mechanical performance despite thermal challenges common in construction environments.

Keywords: EN 1367-5:2011, thermal shock resistance, aggregates testing, hot bituminous mixtures, CEN standards, aggregate durability, fragmentation resistance, Los Angeles test, thermal properties of aggregates, quality control, aggregate standards.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 5: Bestimmung des Widerstandes gegen HitzebeanspruchungEssais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 5: Détermination de la résistance au choc thermiqueTests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to thermal shock91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 1367-5:2011SIST EN 1367-5:2011en,fr,de01-marec-2011SIST EN 1367-5:2011SLOVENSKI
STANDARDSIST EN 1367-5:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1367-5
January 2011 ICS 91.100.15; 93.080.20 Supersedes EN 1367-5:2002English Version
Tests for thermal and weathering properties of aggregates - Part 5: Determination of resistance to thermal shock
Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 5: Détermination de la résistance au choc thermique
Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen -Teil 5: Bestimmung des Widerstandes gegen HitzebeanspruchungThis European Standard was approved by CEN on 11 December 2010.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1367-5:2011: ESIST EN 1367-5:2011
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