Chemical attack on concrete - Determination of aggressive carbon dioxide content in water

This European Standard specifies a reference method for the determination of carbon dioxide present in water and which has a capacity to dissolve in lime from concrete.
It is not applicable to the measurement of total carbon dioxide present in water.
If other methods are used, it needs to be shown, that they give results equivalent to those obtained by this reference method.
This test does not apply to water that has a pH less than 4,3.
In case of dispute, only the reference method is used.

Chemischer Angriff an Beton - Bestimmung des Gehalts an angreifendem Kohlendioxid in Wasser

Diese Europäische Norm legt das Referenzverfahren für die Bestimmung des in Wasser vorhande¬nen Ge¬halts an Kohlendioxid, das in der Lage ist, Kalk aus Beton zu lösen, fest.
Sie gilt nicht für die Messung des Gesamt-Kohlendioxidgehalts in Wasser.
Wenn andere Verfahren angewandt werden, ist nachzuweisen, dass sie zu vergleichbaren Ergebnissen führen wie das Referenzverfahren.
Das Prüfverfahren ist bei Wasser mit einem pH-Wert < 4,3 nicht anwendbar.
Im Streitfall ist nur das Referenzverfahren anzuwenden.

Attaque chimique du béton - Détermination de la teneur en dioxyde de carbone agressif de l'eau

Kemijska agresija na beton - Ugotavljanje agresivnosti ogljikovega dioksida, raztopljenega v vodi

General Information

Status
Published
Publication Date
28-May-2007
ICS
13.060.50 - Examination of water for chemical substances
 
91.100.30 - Concrete and concrete products
Technical Committee
BBB - Concrete, reinforced concrete and prestressed concrete
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-May-2007
Due Date
12-Jul-2007
Completion Date
29-May-2007
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
89/106/EEC - Construction products
Ref Project
EN 13577:2007 - Chemical attack on concrete - Determination of aggressive carbon dioxide content in water

Overview

EN 13577:2007 (CEN) - "Chemical attack on concrete - Determination of aggressive carbon dioxide content in water" is a European reference method for measuring the fraction of dissolved carbon dioxide in water that can dissolve lime from concrete (the aggressive CO2), not the total dissolved CO2. Published by CEN in 2007, this standard defines a laboratory procedure, sampling controls and reporting requirements to assess the potential for CO2-induced chemical attack on hardened concrete.

Key Topics and Requirements

  • Scope: Determines CO2 in water that can dissolve Ca(OH)2 in concrete; not applicable for total CO2 or when water pH < 4.3. In disputes, only this reference method is used.
  • Principle: Add a known mass of calcium carbonate to the water sample, allow reaction, then titrate with hydrochloric acid. The difference in acid volume between treated and untreated aliquots yields the aggressive CO2 content.
  • Key measurements & formulae:
    • Lime dissolving capacity (LDC) = 28 × (H2 − H1) mg CaO/l (H1, H2 = volumes of 0.100 M HCl used in titrations)
    • Aggressive CO2 = LDC × (44/56), results expressed in mg/l (rounded to nearest whole number)
  • Apparatus & reagents: calibrated balance, pH meter or indicator, magnetic stirrer with thermostatic control, thermometer, burette (25 ml), pipette (100 ml), 0.5 l bottle with 10 g precipitated CaCO3, 0.100 M HCl.
  • Sampling & handling:
    • Fill sample bottles carefully to avoid CO2 loss; test within 48 hours.
    • Temperature change during transport ≤ 5 °C; temperature during reaction must not vary by > 2 °C from sampling temperature.
    • Shake CaCO3-containing bottle vigorously for ≥ 2 hours before titration.
  • Precision: repeatability standard deviation = 0.3 mg/l.
  • Reporting: sample ID, collection time/location, temperatures, titration results, mean aggressive CO2, deviations from method and tester declaration.

Applications

  • Assessing water aggressiveness to concrete in:
    • groundwater, surface water, boreholes and industrial effluents near concrete structures
    • durability studies, remediation planning and selection of concrete mixes or protective measures
  • Used by materials laboratories, civil engineers, water quality labs, infrastructure owners and consultants for durability assessment, specification compliance and forensic investigations of concrete deterioration.

Related Standards

  • EN 206-1 - Concrete - Specification, performance, production and conformity
  • ISO 5725-2 - Accuracy (trueness and precision) of measurement methods and results

Keywords: EN 13577, aggressive carbon dioxide, CO2 in water, lime dissolving capacity (LDC), titration, concrete durability, CEN, chemical attack on concrete.

Frequently Asked Questions

SIST EN 13577:2007 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Chemical attack on concrete - Determination of aggressive carbon dioxide content in water". This standard covers: This European Standard specifies a reference method for the determination of carbon dioxide present in water and which has a capacity to dissolve in lime from concrete. It is not applicable to the measurement of total carbon dioxide present in water. If other methods are used, it needs to be shown, that they give results equivalent to those obtained by this reference method. This test does not apply to water that has a pH less than 4,3. In case of dispute, only the reference method is used.

This European Standard specifies a reference method for the determination of carbon dioxide present in water and which has a capacity to dissolve in lime from concrete. It is not applicable to the measurement of total carbon dioxide present in water. If other methods are used, it needs to be shown, that they give results equivalent to those obtained by this reference method. This test does not apply to water that has a pH less than 4,3. In case of dispute, only the reference method is used.

SIST EN 13577:2007 is classified under the following ICS (International Classification for Standards) categories: 13.060.50 - Examination of water for chemical substances; 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 13577:2007 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

SIST EN 13577:2007 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chemical attack on concrete - Determination of aggressive carbon dioxide content in waterKemijska agresija na beton - Ugotavljanje agresivnosti ogljikovega dioksida, raztopljenega v vodiAttaque chimique du béton - Détermination de la teneur en dioxyde de carbone agressif de l'eauChemischer Angriff an Beton - Bestimmung des Gehalts an angreifendem Kohlendioxid in WasserTa slovenski standard je istoveten z:EN 13577:2007SIST EN 13577:2007en;fr;de91.100.30Beton in betonski izdelkiConcrete and concrete products13.060.50VQRYLExamination of water for chemical substancesICS:SLOVENSKI
STANDARDSIST EN 13577:200701-julij-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13577April 2007ICS 13.060.50; 91.100.30 English VersionChemical attack on concrete - Determination of aggressivecarbon dioxide content in waterAttaque chimique du béton - Détermination de la teneur endioxyde de carbone agressif de l'eauChemischer Angriff an Beton - Bestimmung des Gehalts anangreifendem Kohlendioxid in WasserThis European Standard was approved by CEN on 8 March 2007.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 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13577:2007: E

Example of a test report - Determination of aggressive CO2 content.7 Bibliography.8
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