SIST EN 14629:2007
(Main)Products and systems for the protection and repair of concrete structures - Test methods - Determination of chloride content in hardened concrete
Products and systems for the protection and repair of concrete structures - Test methods - Determination of chloride content in hardened concrete
This standard describes two methods for the determination of the total (free and bound) acid soluble chloride content of hardened concrete or mortar. This information is intended for use in estimating the risk of chloride induced corrosion of the steel reinforcement. It may be used on samples of powder obtained either by drilling or from cores or fragments removed from concrete structures or on other appropriate laboratory specimens.
Produckte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung des Chloridgehaltes von Festbeton
Diese Norm beschreibt zwei Verfahren zur Bestimmung des Gesamtgehaltes an (freiem und gebundenem) säurelöslichem Chlorid in Festbeton und erhärtetem Zement. Diese Angaben sind für die Einschätzung der Gefahr einer durch Chloride verursachten Korrosion der Stahlbewehrung vorgesehen. Das Verfahren kann an Pulverproben, die aus Betontragwerken durch Bohren oder aus Bohrkernproben oder aus Fragmenten gewonnen werden, oder an anderen geeigneten Laborprobekörpern durchgeführt werden.
Produits et systemes pour la protection et la réparation des structures en béton - Méthodes d'essais - Mesurage du taux de chlorure d'un béton durci
Proizvodi in sistemi za zaščito in popravilo betonskih konstrukcij - Preskusne metode -Ugotavljanje deleža vodotopnih kloridov in v strjenem betonu
General Information
- Status
- Published
- Publication Date
- 29-May-2007
- 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
- 30-May-2007
- Directive
- 89/106/EEC - Construction products
Overview
SIST EN 14629:2007 is a European standard developed by CEN that specifies test methods for determining the chloride content in hardened concrete. Chloride ions in concrete are critical to assess because they contribute to the corrosion of steel reinforcement, potentially compromising structural integrity. This standard defines two analytical methods-Volhard’s method and potentiometric titration-for measuring total acid soluble chlorides (both free and bound) in concrete or mortar samples. The procedures ensure accurate quantification of chloride levels, supporting risk evaluation and maintenance strategies for concrete structures.
Key Topics
Scope and Purpose
SIST EN 14629:2007 focuses on assessing the chloride content of hardened concrete to estimate corrosion risk to steel reinforcement. It applies to samples obtained by drilling, coring, or by other preparation of laboratory specimens.Sampling and Preparation
Sampling must be strategic, considering the structure’s design, location, and exposure conditions. Powder samples are typically obtained by drilling, while cores can be sliced or ground. Samples are dried and ground to pass through a 1.18 mm sieve to ensure uniformity.Test Methods
- Volhard’s Method (Method A):
Involves precipitating chloride ions with silver nitrate and titrating the remaining silver nitrate with ammonium thiocyanate using an indicator. - Potentiometric Titration (Method B):
Utilizes an electrode system to detect titration endpoints accurately by measuring voltage changes during titrant addition.
- Volhard’s Method (Method A):
Chemical Analysis
Requires precise weighing of the samples and chemicals, controlled heating, filtration, and titration to quantify chloride levels, expressed as a percentage of chloride ion by mass of sample.Reporting Requirements
Test reports must detail client information, sample identification, method used, and measured chloride contents both by mass of sample and, if requested, by mass of cement. Calculation methods for estimating chloride content based on cement content must be clearly stated.
Applications
Corrosion Risk Assessment
Enables engineers and inspectors to identify the extent of chloride contamination in concrete and the potential for corrosion-induced deterioration of steel reinforcement.Structural Integrity Evaluation
Assists in decisions regarding repair, protective treatments, or partial/full removal of damaged concrete to prolong the service life of concrete structures.Quality Control in Concrete Repair
Provides validated test methods that ensure accuracy and reproducibility in chloride measurements, helping to verify the effectiveness of protective systems and repair materials.Research and Development
Supports laboratories and manufacturers in testing and validating new concrete protection products, systems, and technologies against chloride-induced corrosion.Regulatory Compliance
Aligns with related standards and European regulations requiring assessment of chloride levels during concrete repair and protection works.
Related Standards
EN 1504-9 - General principles for the protection and repair of concrete structures, emphasizing consideration of chloride content to evaluate corrosion risk.
EN 1504-10 - Specifies requirements for site application and quality control of products and systems used in concrete protection and repair, referencing chloride content as a critical parameter.
ISO 384 - Principles of volumetric glassware design and construction, relevant for ensuring laboratory equipment used in titration is compliant and accurate.
Keywords: SIST EN 14629:2007, chloride content determination, hardened concrete testing, Volhard’s method, potentiometric titration, steel reinforcement corrosion, concrete sampling, chloride induced corrosion, concrete structure protection, CEN standards, concrete repair, chloride testing methods
Frequently Asked Questions
SIST EN 14629:2007 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Products and systems for the protection and repair of concrete structures - Test methods - Determination of chloride content in hardened concrete". This standard covers: This standard describes two methods for the determination of the total (free and bound) acid soluble chloride content of hardened concrete or mortar. This information is intended for use in estimating the risk of chloride induced corrosion of the steel reinforcement. It may be used on samples of powder obtained either by drilling or from cores or fragments removed from concrete structures or on other appropriate laboratory specimens.
This standard describes two methods for the determination of the total (free and bound) acid soluble chloride content of hardened concrete or mortar. This information is intended for use in estimating the risk of chloride induced corrosion of the steel reinforcement. It may be used on samples of powder obtained either by drilling or from cores or fragments removed from concrete structures or on other appropriate laboratory specimens.
SIST EN 14629:2007 is classified under the following ICS (International Classification for Standards) categories: 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 14629:2007 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.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Products and systems for the protection and repair of concrete structures - Test methods - Determination of chloride content in hardened concreteRQXProduits et systemes pour la protection et la réparation des structures en béton - Méthodes d'essais - Mesurage du taux de chlorure d'un béton durciProduckte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung des Chloridgehaltes von FestbetonTa slovenski standard je istoveten z:EN 14629:2007SIST EN 14629:2007en;fr;de91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:SLOVENSKI
STANDARDSIST EN 14629:200701-julij-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14629March 2007ICS 91.100.30 English VersionProducts and systems for the protection and repair of concretestructures - Test methods - Determination of chloride content inhardened concreteProduits et systèmes pour la protection et la réparation desstructures en béton - Méthodes d'essais - Mesurage dutaux de chlorure d'un béton durciProduckte und Systeme für den Schutz und dieInstandsetzung von Betontragwerken - Prüfverfahren -Bestimmung des Chloridgehaltes von FestbetonThis European Standard was approved by CEN on 7 September 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 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 14629:2007: E
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SIST EN 14629:2007は、コンクリート構造物の保護および修復のための試験方法に関する重要な標準であり、硬化コンクリート中の塩化物含量を測定するための2つの手法を詳述しています。この標準の主な目的は、鋼鉄の補強材に対する塩化物誘発腐食のリスクを評価するために必要なデータを提供することです。これは、コンクリート構造物の耐久性を確保するために極めて重要です。 この標準の強みは、硬化コンクリートやモルタルの酸溶解塩化物含量を正確に測定する方法を提供することにあります。試験は、ドリルで採取した粉末やコンクリート構造物から取り除いたコアや破片、またはその他の適切な試験片に対して実施されます。この柔軟性により、様々なサンプリング方法に対応できるため、広範な適用性が保証されています。 また、SIST EN 14629:2007は、塩化物による腐食のリスクを適切に評価するために必要な基準として、建設業界において非常に関連性が高いです。コンクリート構造物の長期的な性能と安全性を確保するために、この標準は無視できない要素です。これにより、設計者やエンジニアは、コンクリートの信頼性向上に向けた適切な対策を講じることが可能となり、構造物のメンテナンスと修復計画をより効果的に行うことができます。 全体として、SIST EN 14629:2007は、コンクリート構造物の保護と修復に関する重要な基準であり、そのテスト方法は業界のニーズに応えるものです。この標準に従うことで、塩化物の含有量を正確に把握し、腐食による問題を未然に防ぐための手助けとなります。
SIST EN 14629:2007 표준은 콘크리트 구조물의 보호 및 수리를 위한 제품과 시스템에 관련된 테스트 방법을 규명하고 있으며, 구체적으로 하드닝된 콘크리트에서 염소 함량을 결정하는 두 가지 방법을 설명합니다. 이 표준은 하드닝된 콘크리트 또는 모르타르의 총 염소 함량(자유 및 결합된 염소 포함)을 측정하는 방법에 대한 세부 정보를 제공하며, 이는 강철 보강재의 염소 유발 부식 위험을 추정하는 데 중요한 데이터를 제공합니다. 이 표준의 강점 중 하나는 드릴링을 통해 확보한 분말 샘플이나 콘크리트 구조물에서 제거한 시료 및 기타 적절한 실험실 샘플에 적용할 수 있는 유연성을 제공한다는 점입니다. 이러한 다양성은 다양한 환경 및 상황에서의 신뢰할 수 있는 결과를 보장합니다. 또한, SIST EN 14629:2007은 콘크리트 구조물의 내구성 및 안정성을 평가하는 데 있어 중요한 기준으로 자리 잡고 있으며, 건설 및 토목 공학 분야의 전문가들에게 필수적인 도구로 사용될 수 있습니다. 이와 같은 표준은 콘크리트의 구조적 안전성을 확보하고 장기적인 내구성을 향상시키기 위해 반드시 고려되어야 할 요소입니다. 표준의 적절한 적용은 결과적으로 건설 및 유지 보수의 품질을 높이고, 비용 절감 및 비용 효율적인 관리에 기여할 수 있습니다. 결론적으로, SIST EN 14629:2007 표준은 콘크리트 구조물의 염소 함량을 평가하기 위한 신뢰할 수 있는 방법을 제공하며, 이는 공학 및 건설 분야에서 매우 중요한 역할을 수행합니다. 그 적용은 콘크리트 구조물의 수명 연장과 유지보수 계획 수립에 있어 considerable한 영향을 미칩니다.
The SIST EN 14629:2007 standard provides essential guidelines for the testing of chlorides in hardened concrete, offering two distinct methodologies for determining the total chloride content, both free and bound. This focus on chloride content is particularly critical as it plays a pivotal role in assessing the risk of chloride-induced corrosion in steel reinforcement within concrete structures. One of the primary strengths of this standard lies in its comprehensive scope, which not only addresses the analysis of concrete samples but also includes guidelines for dealing with powdered specimens obtained through various methods such as drilling or coring. This versatility ensures that professionals can employ the standard effectively under different scenarios, whether they are working with intact structures or analyzing fragments. Moreover, the methodologies laid out within SIST EN 14629:2007 provide a reliable framework for the determination of chloride content, which is vital for the integrity and longevity of concrete structures. The ability to differentiate between free and bound chlorides enables engineers and researchers to better understand the behavior of concrete in various environments, particularly those exposed to saline conditions. The relevance of this standard is underscored by the ongoing challenges in construction and civil engineering related to the durability of concrete structures. As corrosion can significantly compromise structural safety and longevity, having a standardized testing method fosters consistency and accuracy in risk assessments across the industry. In summary, SIST EN 14629:2007 stands as a strong and relevant standard that equips professionals with the necessary tools to evaluate chloride content in concrete effectively. Its well-defined scope and robust methodologies contribute significantly to the field of construction, specifically in the protection and repair of concrete structures, ultimately supporting efforts to enhance their durability and resistance to corrosion.
La norme SIST EN 14629:2007 est une référence essentielle pour les professionnels de la construction et de la rénovation des structures en béton. Son objectif principal est de fournir des méthodes testées pour déterminer le contenu en chlorure, tant libre que lié, des bétons ou mortiers durcis. L’analyse de ce contenu est cruciale pour estimer le risque de corrosion induite par le chlorure sur l'armature en acier, ce qui en fait un processus indispensable dans l'évaluation de la durabilité des structures en béton. L’une des forces de cette norme réside dans ses deux méthodes décrites pour mesurer le chlorure. Ces méthodes sont adaptées aux échantillons de béton prélevés de diverses manières, que ce soit par forage ou à partir de carottes, ce qui constitue une flexibilité appréciable pour les laboratoires et les professionnels sur le terrain. Cette adaptabilité permet de garantir que les tests peuvent être appliqués à différents contextes et types de structures, renforçant ainsi la pertinence de la norme. De plus, la norme SIST EN 14629:2007 contribue à une meilleure compréhension des risques liés à la corrosion dans le béton, ce qui est non seulement bénéfique pour la sécurité des structures, mais aussi pour la gestion des coûts liés aux réparations. En fournissant des directives claires et des méthodes éprouvées, elle aide les professionnels à mettre en œuvre des mesures préventives efficaces contre la dégradation du béton. Enfin, en tant que norme standardisée, la SIST EN 14629:2007 garantit que les résultats des tests sont cohérents et comparables entre différents laboratoires et régions, ce qui renforce la confiance dans les données obtenues. Cela en fait un outil de référence incontournable pour les parties prenantes dans le domaine de la protection et de la réparation des structures en béton.
Die Norm SIST EN 14629:2007 befasst sich mit der Prüfung von Produkten und Systemen zum Schutz und zur Reparatur von Betonbauwerken, insbesondere durch die Bestimmung des Chloridgehalts in erhärtetem Beton. Sie beschreibt zwei spezifische Methoden zur Ermittlung des Gesamte (freien und gebundenen) säurelöslichen Chloridgehalts in Beton oder Mörtel. Ein wesentlicher Aspekt dieser Norm ist die Relevanz der Chloridbestimmung zur Einschätzung des Risikos von chloridinduzierter Korrosion der Stahlbewehrung. Diese Informationen sind für Ingenieure und Fachleute entscheidend, die für die Langlebigkeit und Sicherheit von Betonstrukturen verantwortlich sind. Die Norm ermöglicht die Analyse von Proben, die entweder durch Bohren oder aus Kernen bzw. Fragmente von Betonbauwerken gewonnen werden, oder aus anderen geeigneten Laborproben stammen. Die Stärken der Norm liegen in der Präzision und Zuverlässigkeit der beschriebenen Prüfmethode, die es Fachleuten ermöglicht, fundierte Entscheidungen über Reparatur- und Schutzmaßnahmen zu treffen. Zudem trägt die Norm zur Standardisierung von Prüfmethoden bei, was die Vergleichbarkeit der Ergebnisse und die Qualitätssicherung in der Bauindustrie fördert. Dadurch ist die SIST EN 14629:2007 ein unverzichtbares Dokument für die Bewertung der Dauerhaftigkeit von Beton und das Management von Korrosionsrisiken.
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