BS-EN-1771-2004.pdf
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1、BRITISH STANDARD BS EN 1771:2004 Products and systems for the protection and repair of concrete structures Test methods Determination of injectability and splitting test The European Standard EN 1771:2004 has the status of a British Standard ICS 91.080.40 ? Licensed Copy: sheffieldun sheffieldun, na
2、, Mon Oct 30 06:59:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1771:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 BSI ISBN 0 580 44408 2 National foreword This British Standard is the official English language ver
3、sion of EN 1771:2004. The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection and repair of concrete structures, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on requ
4、est to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI E
5、lectronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers
6、to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comp
7、rises a front cover, an inside front cover, the EN title page, pages 2 to 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oc
8、t 30 06:59:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1771 August 2004 ICS 91.080.40 English version Products and systems for the protection and repair of concrete structures Test methods Determination of injectability and splitting test Produi
9、ts et systmes pour la protection et la rparation des structures en bton Mthodes dessai Dtermination de linjectabilit et essai de fendage Produkte und Systeme fr den Schutz und die Instandsetzung von Betontragwerken Prfverfahren Bestimmung der Injektionsfhigkeit und Prfung der Spaltzugfestigkeit This
10、 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 European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical refere
11、nces concerning such national standards 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 translation under the responsibility of a CEN member int
12、o its own language and notified to the Central Secretariat has the same status as the official versions. 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,
13、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights
14、 of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1771:2004: E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 06:59:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1771:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references4
15、3 Test principle4 4 General requirements for testing.4 4.1 Apparatus .4 4.2 Other equipment4 4.3 Sand 5 5 Preparation of the test.8 5.1 Injectability test8 5.2 Preparation of specimen for splitting test (Brazilian test).8 6 Test procedure.9 6.1 Column test9 6.2 Splitting test.10 7 Expression of the
16、results10 7.1 Column test10 7.2 Splitting test.11 8 Test report11 Bibliography13 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 06:59:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1771:2004 (E) 3 Foreword This document (EN 1771:2004) has been prepared by Technical Committee CEN /TC 104, “
17、Concrete and related products“, the secretariat of which is held by DIN. It has been prepared by Sub-committee 8 “Products and systems for the protection and repair of concrete structures“ (Secretariat AFNOR). This European Standard shall be given the status of a national standard, either by publica
18、tion of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. It is generally recognised that it is difficult to generate cracks of a controlled width in concrete and difficult to make objective meas
19、urements of the ease with which such cracks may be injected with various materials. This test, developed at the LCPC 1) and by RILEM 2), circumvents these difficulties by measuring the rate of flow of the injection agent through a column of graded sand. The sand grading specified is carefully chosen
20、 to have interconnecting voids providing a tortuous path for a flow of the injection agent. These having a similar resistance to flow to that provided by a 0,2 mm crack in concrete (other gradings of sand could be chosen to simulate the flow in wider cracks, if desired). The detailed method of injec
21、tion uses a fixed quantity of mixed reactive injection agent in a vessel maintained at a closely controlled pressure, to provide the injection force. Thus, any limitations on the practical usage of the grout imposed by thickening/gelation of the mixed product in the injection vessel will be recorded
22、. The method could be modified to permit the assessment of grouts dispensed and injected by twin-pump metering and mixing machines, provided the same fine degree of pressure control can be exercised. As a supplement to the injectability test, the column of grouted sand, when fully cured, is sawn int
23、o cylinders which are then subjected to indirect tensile strength measurement (Brazilian splitting test). This can provide a useful comparison between materials, giving some indication of the strength of bond achievable. This document includes a Bibliography. According to the CEN/CENELEC Internal Re
24、gulations, 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,
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