Tests for chemical properties of aggregates - Part 5: Determination of acid soluble chloride salts

This European Standard specifies the procedure for the determination of acid soluble chloride salts which may be present in aggregates. This test is suitable for aggregates where the chloride content does not derive directly from contact with, or immersion in, saline water. Examples of such aggregates are: recycled aggregates containing hydrated cement, where chloride may be bound as calcium chloroaluminates; and some aggregates from desert areas where chloride is occluded within the aggregate particles.

Prüfverfahren für chemische Eigenschaften von Gesteinkörnungen - Teil 5: Bestimmung der säurelöslichen Chloride

Diese Europäische Norm legt ein Verfahren zur Bestimmung säurelöslicher Chloride fest, die in Gesteins-körnungen
vorhanden sein können. Diese Prüfung ist für Gesteinskörnungen geeignet, deren Chloridgehalt
nicht unmittelbar aus dem Kontakt mit oder durch Eintauchen in Salzwasser abzuleiten ist. Beispiele für
Gesteinskörnungen dieser Art sind: rezyklierte Gesteinskörnungen mit abgebundenem Zement, in denen
Chloride als Calciumchloraluminate gebunden sein können sowie einige Gesteinskörnungen aus
Wüstengebieten, in denen Chloride in den Gesteinskörnern eingeschlossen sind.

Essais relatifs aux propriétés chimiques des granulats - Partie 5: Dosage des sels chlorures solubles dans l’acide

La présente Norme européenne spécifie un mode opératoire qui permet de doser les chlorures solubles dans l’acide, susceptibles d’etre présents dans les granulats. Le présent essai convient pour des granulats dont la teneur en chlorures n’est pas directement due a un contact avec des eaux salines ou a une immersion dans ces dernieres. A titre d’exemple, on peut citer les granulats recyclés contenant du ciment hydraté dans lesquels les chlorures peuvent etre liés sous forme de chloro-aluminates de calcium ainsi que certains granulats situés dans les régions désertiques ou les chlorures sont inclus dans les particules des granulats.

Preskusi kemičnih lastnosti agregatov – 5. del: Določevanje kloridnih soli, topnih v kislini

General Information

Status
Published
Publication Date
28-Feb-2007
Withdrawal Date
28-Feb-2007
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Mar-2007
Due Date
01-Mar-2007
Completion Date
01-Mar-2007

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tests for chemical properties of aggregates - Part 5: Determination of acid soluble chloride saltsNLVOLQLEssais relatifs aux propriétés chimiques des granulats - Partie 5: Dosage des sels chlorures solubles dans l’acidePrüfverfahren für chemische Eigenschaften von Gesteinkörnungen - Teil 5: Bestimmung der säurelöslichen ChlorideTa slovenski standard je istoveten z:EN 1744-5:2006SIST EN 1744-5:2007en91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:SLOVENSKI

STANDARDSIST EN 1744-5:200701-marec-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1744-5October 2006ICS 91.100.15 English VersionTests for chemical properties of aggregates - Part 5:Determination of acid soluble chloride saltsEssais pour déterminer les propriétés chimiques desgranulats - Partie 5: Détermination de la teneur enchlorures solubles dans l'acidePrüfverfahren für chemische Eigenschaften vonGesteinkörnungen - Teil 5: Bestimmung der säurelöslichenChlorideThis European Standard was approved by CEN on 28 August 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36

B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1744-5:2006: E

EN 1744-5:2006 (E) 2 Contents page Foreword.............................................................................................................................................................3 1 Scope......................................................................................................................................................4 2 Normative references...........................................................................................................................4 3 Definitions..............................................................................................................................................4 4 Reagents................................................................................................................................................4 4.1 General requirements for densities....................................................................................................5 4.2 Reagents for determination of acid -soluble chloride salts (Volhard method)..............................5 5 Apparatus..............................................................................................................................................6 6 Principle.................................................................................................................................................6 7 Sampling................................................................................................................................................6 8 Preparation of test portion...................................................................................................................6 9 Procedure..............................................................................................................................................7 10 Calculation and expression of results................................................................................................7 11 Test report.............................................................................................................................................7 Bibliography.......................................................................................................................................................8

EN 1744-5:2006 (E) 3 Foreword This document (EN 1744-5:2006) has been prepared by Technical Committee CEN/TC 154, "Aggregates", 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 April 2007, and conflicting national standards shall be withdrawn at the latest by April 2007. This standard forms part of a series of tests for chemical properties of aggregates. Test methods for other properties of aggregates will be covered by Parts of the following European Standards:

EN 932
Tests for general properties of aggregates EN 933
Tests for geometrical properties of aggregates
EN 1097
Tests for mechanical and physical properties of aggregates
EN 1367
Tests for thermal and weathering properties of aggregates EN 13179
Tests for filler aggregate used in bituminous mixtures
The other parts of EN 1744 are, or will be:
Part 1: Chemical analysis

Part 2: Determination of resistance to alkali reaction Part 3: Preparation of eluates by leaching of aggregates Part 4: Determination of water susceptibility of fillers for bituminous mixtures

Part 6: Determination of the influence of recycled aggregate extract on the initial setting time of cement According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, 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.

EN 1744-5:2006 (E) 4 1 Scope This European Standard specifies the procedure for the determination of acid soluble chloride salts which may be present in aggregates. This test is suitable for aggregates where the chloride content does not derive directly from contact with, or immersion in, saline water. Examples of such aggregates are: recycled aggregates containing hydrated cement, where chloride may be bound as calcium chloroaluminates; and some aggregates from desert areas where chloride is occluded within the aggregate particles.

2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1744-1:1998, Tests for chemical properties of aggregates — Part 1: Chemical analysis EN 932-1, Tests for general properties of aggregates — Part 1: Methods for sampling EN 932-5, Tests for general properties of aggregates — Part 5: Common equipment and calibration ISO 384, Laboratory glassware — Principles of design and construction of volumetric glassware ISO 1042:1983, Laboratory glassware — One-mark volumetric flasks 3 Definitions For the purposes of this standard, the following terms and definitions apply. 3.1 test portion sample used as a whole in a

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