EN 480-10:2009

Admixtures for concrete, mortar and grout - Test methods - Part 10: Determination of water soluble chloride content

This draft European Standard describes methods for determining water soluble halogens (except fluorides) in admixtures.
The total water soluble halogen content is expressed as the chloride content.

Zusatzmittel für Beton, Mörtel und Einpressmörtel - Prüfverfahren - Teil 10: Bestimmung des wasserlöslichen Chloridgehaltes

Diese Europäische Norm legt Verfahren zur Bestimmung von wasserlöslichen Halogenen (mit Ausnahme von
Fluoriden) in Zusatzmitteln fest.
Der Gesamtgehalt an wasserlöslichen Halogenen wird als Chloridgehalt ausgedrückt.

Adjuvants pour béton, mortier et coulis - Méthodes d'essai - Partie 10: Détermination de la teneur en chlorure soluble dans l'eau

La présente Norme européenne décrit des méthodes de détermination de la teneur en halogénures solubles dans l'eau (à l'exception des fluorures) dans les adjuvants.
La teneur totale en halogénures solubles dans l'eau s'exprime en teneur en chlorure.

Kemijski dodatki za beton, malto in injekcijsko maso - Metode preskušanja - 10. del: Določanje deleža vodotopnih kloridov

General Information

• Status: Published
• Publication Date: 28-Jul-2009
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
• Drafting Committee: CEN/TC 104/SC 3 - Admixtures for concrete
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 13-Nov-2020
• Completion Date: 23-Sep-2025
• 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
• Directive: 89/106/EEC - Construction products
• Mandate: M/128 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on products for concrete, mortar and grout
• Ref Project: SIST EN 480-10:2009 - Admixtures for concrete, mortar and grout - Test methods - Part 10: Determination of water soluble chloride content

Relations

• Replaces: EN 480-10:1996 - Admixtures for concrete, mortar and grout - Test methods - Part 10: Determination of water soluble chloride content
• Effective Date: 22-Dec-2008

Overview

EN 480-10:2009 is a European standard developed by CEN that specifies test methods for determining the water soluble chloride content in admixtures used for concrete, mortar, and grout. This standard focuses on quantifying water soluble halogens, excluding fluorides, and expresses the total halogen content as chloride content. Chloride determination is critical for assessing the quality and durability of construction materials, as chloride ions can induce corrosion in reinforced concrete structures. EN 480-10:2009 supersedes the earlier 1996 version and aligns with the broader EN 480 series of standards concerning admixture testing.

Key Topics

• Scope: Applicable for admixtures in concrete, mortar, and grout to measure water soluble halogen ions with results expressed in chloride content.
• Test Principle: Chloride ions react with silver nitrate to form a precipitate of silver chloride. The endpoint is detected using a pH meter, ensuring precise titration.
• Methods:
  • Method 1: Suitable for admixtures without interfering substances (e.g., lignosulphonates or reducing agents).
  • Method 2: Designed for admixtures containing lignosulphonates or reducing agents. It involves treatment with sodium hydroxide and hydrogen peroxide, followed by boiling to eliminate interference.
  • Method 3: Used when thiocyanates may be present. This method requires extended boiling and careful handling due to exothermic reactions and potential hydrogen cyanide release.
• Apparatus and Reagents: Requires precise laboratory equipment including pH meters, electrodes, burettes, and analytical grade reagents such as nitric acid, hydrogen peroxide, sodium hydroxide, acetone, ethanol, and silver nitrate solution.
• Sample Preparation: Different preparation steps defined for liquid and powder admixtures to ensure accurate dissolution or dilution prior to analysis.
• Calculation: Chloride content is calculated by the volume difference between test and blank titrations, adjusted for the normality of silver nitrate and sample mass.
• Reporting: Test reports must document critical information such as admixture identification, test date, laboratory and operator details, test method used, equipment, and chloride content percentage accurate to 0.01%.

Applications

• Quality Control: EN 480-10:2009 enables manufacturers and testing laboratories to evaluate chloride levels in admixtures reliably, preventing premature corrosion risks in reinforced concrete.
• Durability Assessment: Helps structural engineers and materials scientists assess the influence of admixtures on concrete longevity by tracking harmful chloride concentrations.
• Regulatory Compliance: Supports compliance with European construction standards and procurement specifications by providing harmonized testing procedures.
• Material Certification: Facilitates certification of concrete admixtures by verifying adherence to chloride limits, vital for both domestic and international markets.
• Research and Development: Assists in developing new admixture formulations with controlled chloride content to improve structural safety and performance.

Related Standards

EN 480-10:2009 is part of the EN 480 series related to admixture testing, including but not limited to:

• EN 480-1: Reference concrete and mortar for testing
• EN 480-2: Determination of setting time
• EN 480-4: Determination of bleeding of concrete
• EN 480-5: Determination of capillary absorption
• EN 480-6: Infrared analysis
• EN 480-8: Determination of conventional dry material content
• EN 480-11: Determination of air void characteristics in hardened concrete
• EN 480-12: Determination of alkali content in admixtures
• EN 480-14: Electro-chemical test of corrosion susceptibility on reinforced steel

These standards collectively enable comprehensive quality control and performance evaluation of concrete, mortar, and grout admixtures in accordance with the EN 934 series and other European regulations.

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Keywords: EN 480-10:2009, water soluble chloride content, admixtures for concrete, chloride determination, concrete quality control, admixture testing methods, silver nitrate titration, halogen ion analysis, corrosion prevention, European standards for concrete additives.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2009
1DGRPHãþD
SIST EN 480-10:1998
.HPLMVNLGRGDWNL]DEHWRQPDOWRLQLQMHNFLMVNRPDVR0HWRGHSUHVNXãDQMD
GHO'RORþDQMHGHOHåDYRGRWRSQLKNORULGRY
Admixtures for concrete, mortar and grout - Test methods - Part 10: Determination of
water soluble chloride content
Zusatzmittel für Beton, Mörtel und Einpressmörtel - Prüfverfahren - Teil 10: Bestimmung
des wasserlöslichen Chloridgehaltes
Adjuvants pour béton, mortier et coulis - Méthodes d'essai - Partie 10: Détermination de
la teneur en chlorure soluble dans l'eau
Ta slovenski standard je istoveten z: EN 480-10:2009
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 480-10
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2009
ICS 91.100.30 Supersedes EN 480-10:1996
English Version
Admixtures for concrete, mortar and grout - Test methods - Part
10: Determination of water soluble chloride content
Adjuvants pour béton, mortier et coulis - Méthodes d'essai - Zusatzmittel für Beton, Mörtel und Einpressmörtel -
Partie 10: Détermination de la teneur en chlorure soluble Prüfverfahren - Teil 10: Bestimmung des wasserlöslichen
dans l'eau Chloridgehaltes
This European Standard was approved by CEN on 23 June 2009.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 480-10:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3
1 Scope .5
2 Principle .5
3 Apparatus .5
3.1 pH meter .5
3.2 Electrodes .5
3.3 Additional apparatus .6
3.4 Reagents .6
4 Procedure .6
4.1 Preparation of sample .6
4.2 Determination .6
5 Results .7
6 Test report .8

Foreword
This document (EN 480-10:2009) has been prepared by Technical Committee CEN/TC 104 “Concrete and
related products”, the secretariat of which is held by DIN.
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 January 2010, and conflicting national standards shall be withdrawn at
the latest by January 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 480-10:1996.
It has been drafted by Subcommittee 3 (SC 3) of TC 104 "Admixtures for concrete, mortar and grout".
This draft European Standard is part of the series EN 480 "Admixtures for concrete, mortar and grout – Test
methods" which comprises the following:
 Part 1 Reference concrete and reference mortar for testing
 Part 2 Determination of setting time
 Part 4 Determination of bleeding of concrete
 Part 5 Determination of capillary absorption
 Part 6 Infrared analysis
 Part 8 Determination of the conventional dry material content
 Part 10 Determination of water soluble chloride content
 Part 11 Determination of air void characteristics in hardened concrete
 Part 12 Determination of the alkali content of admixtures
 Part 13 Reference masonry mortar for testing mortar admixtures
 Part 14 Determination of the effect on corrosion susceptibility of reinforcing steel by potentiostatic
electro-chemical test.
This standard is applicable together with the other standards of the EN 480 series for testing admixtures in
accordance with the EN 934 series of standards.
The following amendments have been made to the 1996-09 edition of this standard:
 editorial revision;
 detailing of used reagents;
 detailing of the procedure applied for Method 1 to Method 3.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Gree
...