EN 1367-7:2014

Tests for thermal and weathering properties of aggregates - Part 7: Determination of resistance to freezing and thawing of Lightweight aggregates

This European Standard specifies the reference test method used for type testing, and in case of dispute, for determining the resistance to freezing and thawing of lightweight aggregates (LWA) in accordance with EN 13055. For other purposes, in particular for factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. The test is applicable to LWA with particle size not less than 4 mm and up to a maximum size of 32 mm.

Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 7: Bestimmung des Widerstandes von leichten Gesteinskörnungen gegen Frost-Tau-Wechsel

Diese Europäische Norm legt in Übereinstimmung mit EN 13055 ein Referenzprüfverfahren zur Bestimmung des Widerstandes von leichten Gesteinskörnungen (en: lightweight aggregates, LWA) gegen Frost-Tau-Wechsel fest, das für die Typprüfung und im Streitfall eingesetzt wird. Für sonstige Zwecke, insbesondere für die werkseigene Produktionskontrolle, dürfen andere Verfahren angewendet werden, sofern ein ausreichender Zusammenhang mit dem Referenzverfahren nachgewiesen wurde. Die Prüfung ist für leichte Gesteinskörnungen mit einer Korngröße von mindestens 4 mm bis höchstens 32 mm anwendbar.

Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 7: Détermination de la résistance au gel-dégel des granulats légers

La présente norme décrit la méthode de référence utilisée pour les essais de type et, en cas de conflit, pour la détermination de la résistance au gel-dégel des granulats légers selon l’EN 13055. D’autres méthodes peuvent être utilisées à d’autres fins telles que la maîtrise de la production des granulats, à condition que  des corrélations appropriées avec une méthode de référence aient été établies. L'essai est applicable aux granulats légers d'une granularité comprise entre 4 mm et 32 mm.

Preskusi lastnosti agregatov zaradi termičnih in vremenskih vplivov - 7. del: Odpornost proti zmrzovanju in odtaljevanju lahkih agregatov

Standard EN 1367-7 določa referenčno preskusno metodo, ki se uporablja za tipsko preskušanje, in v primeru spora za določevanje odpornosti proti zmrzovanju in odtaljevanju lahkih agregatov (TWA) v skladu s standardom EN 13055. Za druge namene, zlasti za kontrolo proizvodnje v obratu, se lahko uporabijo druge metode, če obstaja primerna delovna povezava z referenčno metodo. Preskus se uporablja za lahke agregate z velikostjo delcev najmanj 4 mm in največ 32 mm.

General Information

• Status: Published
• Publication Date: 01-Apr-2014
• Withdrawal Date: 30-Oct-2014
• ICS: 91.100.15 - Mineral materials and products
• 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: 04-Jun-2025
• Completion Date: 04-Jun-2025
• Ref Project: SIST EN 1367-7:2014 - Tests for thermal and weathering properties of aggregates - Part 7: Determination of resistance to freezing and thawing of Lightweight aggregates

Overview

EN 1367-7:2014 is a European Standard developed by CEN that specifies a reference test method to determine the resistance of lightweight aggregates (LWA) to freezing and thawing cycles. This standard is essential for type testing and resolving disputes related to the durability of LWA under freeze-thaw conditions, specifically in accordance with EN 13055. The test applies to lightweight aggregates with particle sizes ranging from 4 mm to a maximum of 32 mm.

This test method involves subjecting LWA test specimens to 20 freeze-thaw cycles-freezing in air at approximately -17.5 °C and thawing in water at about 20 °C-and measuring mass loss to evaluate durability. EN 1367-7:2014 is widely adopted across European countries and emphasizes consistency, reproducibility, and conformity in testing processes for lightweight aggregate thermal and weathering performance.

Key Topics

• Test Scope and Purpose

  • Reference method for type testing LWA resistance to freeze-thaw cycles
  • Applicable to aggregates sized 4–32 mm
  • Other methods allowed for factory production control if correlated to this reference method

• Testing Procedure

  • Three test specimens are soaked in water for approximately 240 minutes
  • Specimens undergo 20 freeze-thaw cycles with controlled temperature conditions
  • Freeze: cooling to -17.5°C in air
  • Thaw: warming to 20°C in water bath
  • Drain and dry specimens before initial and final weighing

• Apparatus and Materials

  • Low-temperature cabinet with air circulation for freezing step
  • Thermostatically controlled water bath for thawing stage
  • Ventilated drying oven for drying specimens to constant mass
  • Corrosion-resistant containers and appropriate sieves

• Result Calculation and Reporting

  • Mass loss percentage calculated as:
    FLi = [(M1 - M2) / M1] × 100
    where M1 = initial dry mass, M2 = final dry mass
  • Average mass loss (FL) of three specimens reported
  • Test report includes essential data such as sample identification, test conditions, and results

• Normative References

  • EN 13055 for lightweight aggregate definitions
  • EN 932 and EN 933 for sampling and particle size characterization
  • EN 1097 for related physical and mechanical aggregate tests

Applications

EN 1367-7:2014 plays a vital role in construction and civil engineering industries where lightweight aggregates are used in:

• Lightweight concrete production
• Mortar and grout formulations
• Bituminous mixtures and surface treatments
• Unbound and bound applications requiring freeze-thaw durability

By assessing the freeze-thaw resistance of LWA, manufacturers and material engineers can:

• Ensure long-term durability of construction materials in cold climates
• Optimize aggregate selection for specific environmental exposure conditions
• Maintain compliance with performance criteria under European regulations
• Control production quality and minimize material degradation during service life

Related Standards

To comprehensively evaluate physical and mechanical properties of aggregates, EN 1367-7:2014 is complemented by other standards in the EN 1367 series and related testing methodologies:

• EN 1367-1: Resistance to freezing and thawing (general aggregates)
• EN 1367-6: Resistance to freezing and thawing in the presence of salt (NaCl)
• EN 13055-1 & EN 13055-2: Specifications for lightweight aggregates in concrete and bituminous materials
• EN 932 series: Sampling and general properties of aggregates
• EN 933 series: Geometrical properties of aggregates, including particle size distribution
• EN 1097 series: Mechanical and physical testing of aggregates
• EN 1744: Chemical properties of aggregates

By integrating testing approaches from these standards, professionals achieve a robust understanding of aggregate behavior under diverse conditions, ensuring reliability and performance in engineering applications.

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Keywords: EN 1367-7:2014, lightweight aggregates, freeze-thaw resistance, CEN standard, aggregate testing, thermal properties, weathering properties, construction materials, durability testing, freeze-thaw cycles, aggregate mass loss, type testing, European standard, EN 13055, aggregate particle size, low temperature testing, drying oven, water bath, quality control.

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 7: Bestimmung des Widerstandes von leichten Gesteinskörnungen gegen Frost-Tau-WechselEssais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 7: Détermination de la résistance au gel-dégel des granulats légersTests for thermal and weathering properties of aggregates - Part 7: Determination of resistance to freezing and thawing of Lightweight aggregates91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 1367-7:2014SIST EN 1367-7:2014en,fr,de01-september-2014SIST EN 1367-7:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1367-7
April 2014 ICS 91.100.15 English Version
Tests for thermal and weathering properties of aggregates - Part 7: Determination of resistance to freezing and thawing of Lightweight aggregates
Essais pour déterminer les propriétés thermiques et l'altérabilité des granulats - Partie 7: Détermination de la résistance au gel-dégel des granulats légers
Prüfverfahren für thermische Eigenschaften und Verwitterungsbeständigkeit von Gesteinskörnungen - Teil 7: Bestimmung des Widerstandes von leichten Gesteinskörnungen gegen Frost-Tau-Wechsel This European Standard was approved by CEN on 16 February 2014.
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, 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.
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 worldwide for CEN national Members. Ref. No. EN 1367-7:2014 ESIST EN 1367-7:2014
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