EN 1771:2004
(Main)Products and systems for the protection and repair of concrete structures - Test methods - Determination of injectability and splitting test
Products and systems for the protection and repair of concrete structures - Test methods - Determination of injectability and splitting test
This European Standard specifies a method for determining the injectability of a product in a capillary network and its adhesion to concrete by measurement of the splitting strength of cylindrical mortar samples resulting from a sand column injection.
NOTE Whenever the product is of such nature that it may not be premixed and then poured into a container of the size used in this standard, injection can be carried out using a method suitable for the product provided that the pressure can be measured with similar accuracy.
Produkte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung der Injektionsfähigkeit und Prüfung der Spaltzugfestigkeit
Dieses Dokument legt ein Verfahren zur Bestimmung der Injektionsfähigkeit eines Rissfüllstoffes in ein Kapillarsystem und seiner Haftzugfestigkeit an Beton durch Messung der Spaltzugfestigkeit von zylindrischen Mörtelproben durch Injektion in eine Sandsäule fest.
Produits et systèmes pour la protection et la réparation des structures en béton - Méthodes d'essai - Détermination de l'injectabilité et essai de fendage
Le présent document donne une méthode de détermination de l'injectabilité d'un produit dans un réseau capillaire et de son adhérence au béton par mesurage de la résistance au fendage d'éprouvettes cylindriques de mortier provenant de l'injection d'une colonne de sable.
Proizvodi in sistemi za zaščito in popravilo betonskih konstrukcij – Preskusne metode – Določevanje sposobnosti za injektiranje s preskusom s peščenim stolpcem
General Information
Relations
Overview
EN 1771:2004 is a CEN (European) standard that defines a laboratory method for assessing the injectability of products used to protect and repair concrete structures and their adhesion to concrete. The method uses a graded sand column (the sand-column or sand-column injection test) to simulate a capillary network similar to a narrow concrete crack, then measures flow behavior under constant pressure and the splitting strength (Brazilian test) of cured cylindrical specimens cut from the column.
Key topics and technical requirements
- Test principle: inject the product from the bottom of a vertical transparent tube filled with graded sand and record the height vs. time (h = f(t)) as the material rises through the column.
- Reference sand and grading: a defined grading (0.63–1.25 mm fraction with cumulative passing ~0 / 33 / 63 / 100) is used to create a reproducible tortuous pore network.
- Apparatus essentials: transparent tube, sand column compacted to a specified height (360 ± 1 mm), injection vessel and pressure control. The standard requires precise pressure measurement (test pressure typically given as 0.075 ± 0.0025 MPa) and temperature conditioning (commonly 8 °C, 15 °C, 21 °C or agreed alternatives).
- Test modes: two conditions - dry and damp sand columns - to evaluate performance with and without moisture.
- Performance classification: injectability is reported qualitatively (e.g., easy, feasible, difficult) and quantitatively by flow curve, injected mass and pot life/setting time (EN ISO 9514 / EN 196-3 referenced).
- Adhesion/strength measurement: after curing (typically 28 days at 21 ± 2 °C and 60 ± 10 % RH for polymer/hydraulic products), columns are sawn into cylinders and subjected to the Brazilian splitting test (indirect tensile), with specified specimen geometry and loading rate (e.g., 2:1 aspect ratio, loading rate ~0.05 ± 0.01 N/mm2/s).
- Flexibility note: if a product cannot be premixed in the standard vessel, alternative injection methods are permitted provided pressure is measured with comparable accuracy.
Applications and users
- Manufacturers of injection grouts, epoxy/polymer resins, silicate or cementitious injectable materials - for product development and quality control.
- Testing laboratories and certification bodies - for standardized performance assessment and comparative testing.
- Specifiers and engineers in structural repair and maintenance - to choose materials that will penetrate fine capillaries and bond to concrete.
- Contractors performing crack injection and consolidation works - to verify suitability under dry/damp conditions and to anticipate on-site injectability issues.
Related standards
- EN ISO 9514 - pot-life determination of liquid systems
- EN 196-1 / EN 196-3 - cement testing for strength and setting time
- ISO 565 - test sieve specification
EN 1771:2004 provides a reproducible laboratory framework to compare injectability and bond-strength performance of repair products, helping stakeholders select and qualify materials for concrete crack repair and consolidation.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.ãþHQLPVWROSFHPProdukte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung der Injektionsfähigkeit und Prüfung der SpaltzugfestigkeitProduits et systemes pour la protection et la réparation des structures en béton - Méthodes d'essai - Détermination de l'injectabilité et essai de fendageProducts and systems for the protection and repair of concrete structures - Test methods - Determination of injectability and splitting test91.080.40Betonske konstrukcijeConcrete structuresICS:Ta slovenski standard je istoveten z:EN 1771:2004SIST EN 1771:2004en01-december-2004SIST EN 1771:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1771August 2004ICS 91.080.40English versionProducts and systems for the protection and repair of concretestructures - Test methods - Determination of injectability usingthe sand column testProduits et systèmes pour la protection et la réparation desstructures en béton - Méthodes d'essai - Détermination del'injectabilité et essai de fendageProdukte und Systeme für den Schutz und dieInstandsetzung von Betontragwerken - Prüfverfahren -Bestimmung der Injektionsfähigkeit und Prüfung derSpaltzugfestigkeitThis European Standard was approved by CEN on 27 February 2004.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, 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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1771:2004: ESIST EN 1771:2004
2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Test principle.4 4 General requirements for testing.4 4.1 Apparatus.4 4.2 Other equipment.4 4.3 Sand.5 5 Preparation of the test.8 5.1 Injectability test.8 5.2 Preparation of specimen for splitting test (Brazilian test).8 6 Test procedure.9 6.1 Column test.9 6.2 Splitting test.10 7 Expression of the results.10 7.1 Column test.10 7.2 Splitting test.11 8 Test report.11 Bibliography.13
1) Laboratoire Central des Ponts et Chaussées. 2) Réunion Internationale de Laboratoires d'Essais et de recherches sur les Matériaux. SIST EN 1771:2004
4 1 Scope This document specifies a method for determining the injectability of a product in a capillary network and its adhesion to concrete by measurement of the splitting strength of cylindrical mortar samples resulting from a sand column injection.
2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement - Part 1: Determination of strength. EN 196-3, Methods of testing cement - Part 3: Determination of setting time and soundness. EN ISO 9514, Paints and varnishes - Determination of the pot-life of liquid systems - Preparation and conditioning of samples and guidelines for testing (ISO 9514:1992). ISO 565, Test sieves – Metal wire cloth, perforated metal plate and electroformed sheet – Nominal sizes of openings. 3 Test principle The principle of the test consists on injecting, under a constant pressure, the product in a transparent plastic (polymethylmethacrylate) tube filled with graded sand and kept in a vertical position. The column is injected from its lower end; one measures the time taken by the product to attain the different reference marks drawn along the tube. 4 General requirements for testing 4.1 Apparatus The apparatus used is illustrated in Figure 1. The total length of the rising tube, the joining flexible tube and the connecting branches is (900 ± 5) mm; the inner diameter is (6 ± 0,1) mm. The difference in level between the bottom of the column and the bottom of the injection pot is (400 ± 5) mm in length. The distance between the end of the rising tube and the bottom of the metal container is (20 ± 1) mm. The tube end is cut square. The injection column is fitted with rubber plugs perforated in their centre. The lower plug has passing through it a copper tube, 6 mm internal diameter - 8 mm external diameter, and (50 ± 10) mm in length to which the flexible pipe is fitted. 4.2 Other equipment In addition to the above mentioned device, the following equipment is necessary to carry out the test: transparent tubes not affected by the products involved (e.g. polymethylmethacrylate) (22,2 ± 0,3) mm in inner diameter and 390 mm in length; a scale 400 mm long graduated in millimetres; SIST EN 1771:2004
...
Frequently Asked Questions
EN 1771:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Products and systems for the protection and repair of concrete structures - Test methods - Determination of injectability and splitting test". This standard covers: This European Standard specifies a method for determining the injectability of a product in a capillary network and its adhesion to concrete by measurement of the splitting strength of cylindrical mortar samples resulting from a sand column injection. NOTE Whenever the product is of such nature that it may not be premixed and then poured into a container of the size used in this standard, injection can be carried out using a method suitable for the product provided that the pressure can be measured with similar accuracy.
This European Standard specifies a method for determining the injectability of a product in a capillary network and its adhesion to concrete by measurement of the splitting strength of cylindrical mortar samples resulting from a sand column injection. NOTE Whenever the product is of such nature that it may not be premixed and then poured into a container of the size used in this standard, injection can be carried out using a method suitable for the product provided that the pressure can be measured with similar accuracy.
EN 1771:2004 is classified under the following ICS (International Classification for Standards) categories: 91.080.40 - Concrete structures. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1771:2004 has the following relationships with other standards: It is inter standard links to EN 1771:2004/AC:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 1771:2004 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
The article discusses European Standard EN 1771:2004, which provides test methods for determining the injectability and adhesion of products used to protect and repair concrete structures. The standard involves measuring the splitting strength of mortar samples that are injected with a sand column. If the product cannot be poured into a container of the specified size, an alternative injection method can be used as long as the pressure can be measured accurately.
記事のタイトル：EN 1771:2004 - コンクリート構造物の保護と修復のための製品とシステム - 試験方法 - 注入性と分割試験の決定 記事の内容：この欧州規格は、製品の毛細管ネットワークへの注入性とコンクリートへの密着性を、砂の柱注入によって生成される円筒状セメントサンプルの分割強度の測定によって確認する方法を定めています。製品が本規格で使用される容器のサイズに事前に混合および注入されない場合、同様の精度で圧力を測定できる方法を使用して注入を行うことができます。
제목: EN 1771:2004 - 콘크리트 구조물 보호 및 수리를 위한 제품과 시스템 - 시험 방법 - 주입성과 분리 시험의 결정 내용: 이 유럽 표준은 제품의 주입성을 증거하기 위한 방법과 모래 열매 주입으로 생성된 원통형 시멘트 샘플의 분리 강도를 측정하여 콘크리트에 대한 부착성을 증거하기 위한 방법을 규정합니다. 제품이 이 표준에서 사용되는 크기의 용기에 미리 혼합되고 부연된 후에 부용물 네트워크에 주입될 수 없는 경우, 동일한 정확도로 압력을 측정할 수 있는 적합한 방법을 사용하여 주입을 수행할 수 있습니다.
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...