SIST EN 1097-11:2013

Tests for mechanical and physical properties of aggregates - Part 11: Determination of compressibility and confined compressive strength of lightweight aggregates

This European Standard specifies the reference method used for type testing, and in case of dispute, for determining the compressibility and confined compressive strength of lightweight aggregates (LWA). For other purposes, in particular 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 passing the 32 mm sieve.

Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 11: Bestimmung der Verdichtbarkeit und Druckfestigkeit bei behinderter Querdehnung von leichten Gesteinskörnungen

Diese Europäische Norm legt das Referenzverfahren für die Typprüfung fest sowie im Fall von Streitigkeiten für die Bestimmung der Verdichtbarkeit und Druckfestigkeit bei behinderter Querdehnung von leichten Gesteinskörnungen (LWA, en: lightweight aggregates). Für andere Zwecke, insbesondere im Rahmen der werkseigenen Produktionskontrolle, können andere Verfahren angewendet werden, sofern ein ausreichender Zusammenhang zum Referenzverfahren nachgewiesen wurde.
Die Prüfung gilt für LWA, die durch ein 32-mm-Sieb hindurchpassen.

Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 11: Détermination de la compressibilité et de la résistance à la compression triaxiale des granulats légers

La présente norme européenne définit la méthode de référence utilisée pour les essais de type, et en cas de litige, pour la détermination de la compressibilité et de la résistance à la compression triaxiale des granulats légers. 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.
L'essai est applicable aux granulats légers passant à travers un tamis de 32 mm.

Preskusi mehanskih in fizikalnih lastnosti agregatov - 11. del: Določevanje stisljivosti in omejene tlačne trdnosti lahkih agregatov

Ta evropski standard določa referenčno metodo, ki se uporablja za tipsko preskušanje in v primeru spora za določevanje stisljivosti in omejene tlačne trdnosti lahkih agregatov. 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, ki prehajajo skozi sito 32 mm.

General Information

• Status: Published
• Public Enquiry End Date: 14-Apr-2013
• Publication Date: 15-Sep-2013
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: AGR - Aggregates
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Sep-2013
• Due Date: 10-Nov-2013
• Completion Date: 16-Sep-2013
• Ref Project: EN 1097-11:2013 - Tests for mechanical and physical properties of aggregates - Part 11: Determination of compressibility and confined compressive strength of lightweight aggregates

Overview

EN 1097-11:2013 (CEN) specifies the reference laboratory method for determining the compressibility and confined compressive strength of lightweight aggregates (LWA). Intended principally for type testing and dispute resolution, the standard applies to LWA passing the 32 mm sieve and defines specimen preparation, instrumentation and calculation procedures used to produce reproducible stress–deformation curves and the characteristic CS(10) value (confined compressive strength at 10% deformation).

Key topics and technical requirements

• Scope and purpose: Reference method for type testing; other methods may be used for factory production control if correlated with this reference.
• Specimen preparation: Three test specimens, each 8 L, reduced and prepared per EN 932-2; specimens dried to constant mass at (110 ± 5) °C (EN 1097-5) and cooled to ambient temperature.
• Apparatus: cylindrical stainless-steel container (≈200 mm diameter), removable extension, load distribution steel plate (mass ≈12.1 kg), vibrating table (50 ± 2 Hz, amplitude 0.50 ± 0.10 mm), hydraulic press with continuous loading rate (0.060 ± 0.002 kN/s) and monitoring/recording system (≥10 Hz).
• Two-stage test principle:
  • Stage 1 - Compressibility and bulk density: fill container, measure heights (h0, h1, h2) before and after vibration, calculate bulk density before/after and compressibility (%) after vibration.
  • Stage 2 - Confined compression: apply continuous load while recording load and displacement; compute confined compressive stress–deformation curve and determine confined compressive strength at 10% deformation, CS(10).
• Calculations & reporting: formulas for bulk density, compressibility and stress–deformation conversion are specified; report mean values for three specimens, include moisture content and any deviations.
• Precision: Annex notes that inter-laboratory precision values were not established at time of publication.

Applications and users

EN 1097-11:2013 is used by:

• Aggregate manufacturers and lightweight aggregate (LWA) producers for type approval and product characterization.
• Testing laboratories performing accredited mechanical testing of mineral aggregates.
• Specifying engineers, concrete producers and material certifiers who need reliable LWA compressive properties for lightweight concrete, mortar, geotechnical and unbound applications.
• Contractors and procurement teams for dispute resolution where standardized reference results are required.

Practical uses include product qualification, material selection for lightweight concrete design, and establishing relationships between factory production control tests and the reference method.

Related standards

• EN 932-2 (sample reduction)
• EN 932-5 (equipment and calibration)
• EN 1097-5 (water content by drying)
• prEN 13055:2012 (lightweight aggregates for concrete and related applications)

Keywords: EN 1097-11:2013, lightweight aggregates, LWA testing, compressibility, confined compressive strength, CS(10), aggregate testing, CEN.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RORþHYDQMHPrüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 11: Bestimmung der Verdichtbarkeit und Druckfestigkeit bei behinderter Querdehnung von leichten GesteinskörnungenEssais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 11: Détermination de la compressibilité et de la résistance à la compression triaxiale des granulats légersTests for mechanical and physical properties of aggregates - Part 11: Determination of compressibility and confined compressive strength of lightweight aggregates91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 1097-11:2013SIST EN 1097-11:2013en,fr,de01-oktober-2013SIST EN 1097-11:2013SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1097-11
July 2013 ICS 91.100.15 English Version
Tests for mechanical and physical properties of aggregates - Part 11: Determination of compressibility and confined compressive strength of lightweight aggregates
Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 11: Détermination de la compressibilité et de la résistance à la compression triaxiale des granulats légers
Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 11: Bestimmung der Verdichtbarkeit und Druckfestigkeit bei behinderter Querdehnung von leichten GesteinskörnungenThis European Standard was approved by CEN on 14 June 2013.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1097-11:2013: ESIST EN 1097-11:2013

Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Principle .4 5 Apparatus .4 6 Preparation of test specimens .6 7 Procedure .6 7.1 Measurement of height h0 .6 7.2 Filling of the container .6 7.3 Compressibility .6 7.4 Load and deformation measurements .7 8 Calculation and expression of results .7 8.1 Bulk density .7 8.2 Compressibility .8 8.3 Confined compressive stress–deformation curve .8 8.4 Confined compressive strength .9 9 Test report . 10 9.1 Required data . 10 9.2 Optional data . 11 Annex A (informative)
Precision . 12 Bibliography . 13
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