BSEN12637-1-2004混凝土结构的保护和维修用产品和系统.试验方法.注入产品的可混用性.与混凝土的可混用性VIP

BRITISH STANDARD Products and systems for the protection and repair of concrete structures - Test methods - Compatibility of injection products - Part I: Compatibility with concrete The European Standard EN 12637-1:2004 has the status of a British Standard NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Copyrghl European Cornrnltlee for Slandardzaton Provded by IHS under lcense wilh CEN British Standards No reproduction or networking permlled wtlhnut lcense from IHS Not for Resale National foreword This British Standard is the official English language version of EN 12637-1:2004. The UK participation in its preparation was entrusted by Technical Committee B1517, Concrete, to Subcommittee B151718, Protection and repair of concrete structures, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretauy. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalog-le under the section entitled “International Standards Correspondence Index“, or by using the “Search“ facility of the BSI Electrollic 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. This Lil.itish St;tnd;lrd tvas Summary of pages published under the ntrthol.rty or tile St;ind;lrds policy ;lnd This docullent conlprises a front cover, an inside front cover, the EN title page, Strategy (ommttec on pages 2 to 9 and a back cover. 2 Scptenhcr 2004 The BSI copyright notice displayed in this document indicates when the document was last issuecl. Amendments issued since publication ISBN 0 580 44411 2 Amd. No. - - Copyryhl European Commtlee for Slandardtzation Provded by IHS under lcense with CEN No reproducton or networkng permtled wthoul lcense from IHS Date Comments w w w . b z f x w . c o m EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM August 2004 English version Products and systems for the protection and repair of concrete structures - Test methods - Compatibility of injection products - Part 1 : Compatibility with concrete Produits et systemes pour la protection et la reparation des structures en beton - Methodes dessai - Compatibilite des produits dinjection - Partie 1 : Compatibilite avec le beton Produkte und Systeme fur den Schutz und die lnstandsetzung von Betontragwerken - Prufverfahren - Vertraglichkeit von Rissfullstoffen - Teil 1 : Vertraglichkeit mit Beton This European Standard was approved by CEN on 27 February 2004 CEN members are bound to comply with the CENICENELEC 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 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 into 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUKOPEAN COMMITTEE FOR STANDAKDIZAPION C O M I T E E U R O P E N D E N O R M A L I S A T I O N E U K O P A I S C H E S K O M I T E E F U R N O R M U N G Management Centre: rue de Stassart, 36 B-1050 Brussels O 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12637-1:2004: E Copyrght European Cornmttee for Standardzaton Provded by IHS under Icenqe wth CEN No reproduction or nelworkng permlted wthoul lrense from IHS w w w . b z f x w . c o m EN 12637-1 2004 (E) Contents Foreword 3 1 Scope 4 2 Normative references 4 3 Test principle 4 4 General requirements 4 4.1 Apparatus . 4 4.2 Materials . 4 5 Test procedure . 5 5.1 Description and design of the mould 5 5.2 Mixing of components . 5 5.3 Casting the specimens 5 5.4 Storage of the specimens . 5 6 Mechanical properties : evaluation after storage . 6 7 Interpretation of results 6 8 Test report 6 2 Copyrghl European Comniltee for Standardatori Provded by IHS under Icense wlh CEN No reproducllon or networking permilled wthout llcense from IHS w w w . b z f x w . c o m EN 12637-1 12004 (E) Foreword This document (EN 12637-1 :2004) has been prepared by Technical Committee CEN ITC 104, “Concrete and related products“, the secretariat of which is held by DIN. It has been drafted 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 publication 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. According to the CENICENELEC Internal Regulations, 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, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Copyrighl European Cornrnltee for Standardization Provhded by IHS under lhcense with CEN No reproducton or networkng permtted wtthoul lcense from IHS w w w . b z f x w . c o m EN 12637-1 2004 (E) I Scope This document describes the method for determining the compatibility with concrete of polyurethane injection products, or other elastic injection products likely to be sensitive to the effects of the alkalis in concrete. This document describes the reference procedure. In the case of polyurethane products, this method is only suitable for final injection products (i.e. not water-stopping foams). 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. IS0 5893, Rubber and plastics test equipment - Tensile, flexural and compression types (constant rate of traverse) Specifications 3 Test principle This test investigates the effect of water contamination upon a polyurethane injection product, as might occur when the product is injected into water filled cracks in concrete. It then assesses the likelihood of change in flexibility of the cured product as a result of long term contact with concrete. This is simulated by storing specimens in a solution of caustic potash. These are then compared with control specimens of cured water contaminated product which have been stored in air and similar specimens stored in water. A further set of control specimens is prepared without water contamination and the cured products stored in air only. The specimens are cut from material polymerised for seven days in shell moulds preventing an increase in volume. 4 General requirements 4.1 Apparatus - compression testing machine complying with IS0 5893; - mould for casting the product (see Figure 1); - sharp knife; - vessel to store specimens in caustic potash; - x, y recorder. 4.2 Materials - 0,l Molar solution of caustic potash (KOH); - the injection product. 4 Copyrghl European Cornmiltee for Slandardzalon Provhded by IHS under lhcense wth CEN No reproduclhon or nelworkhng permitted wthout Icense from IHS w w w . b z f x w . c o m EN 12637-1 :ZOO4 (E) 5 Test procedure 5.1 Description and design of the mould The mould comprises two 10 mm thick, 270 mm diameter mild steel plates, each having a 5 mm deep groove in one face to receive a 200 mm 0, 35 mm high, 5 mm thick steel cylinder. The whole assembly is securely clamped by 12 equally spaced mild steel bolts passing through the plates, outside the cylinder, as illustrated in Figure I. The upper fitted with Sheets of sticking to plate has a 50 mm diameter threaded feed hole, fitted with a threaded steel plug. There is also a vent a valve in the upper plate near the perimeter of the chamber formed by the plates and the cylinder. waxed paper or silicone release paper should be cut to fit the mould to prevent the injection product the steel surfaces. The test should be conducted at (21 k 2) “C and (60 + 10) % relative humidity. 5.2 Mixing of components 5.2.1 Products as supplied One-component products require no mixing. Two-component products shall be thoroughly blended, using the complete contents of the package, and then thoroughly mixed for two minutes using a slow speed (200 rpm) electric drill fitted with a suitable paddle. To complete the mixing process, the product shall be poured from one vessel to another and mixed again. 5.2.2 Products contaminated with water In the case of single-component products, sufficient product to fill the mould shall be taken and 5 % water added. It shall be mixed thoroughly for one minute, unless the rate of reaction proves too rapid to allow it to then be poured into the mould, in which case the suppliers advice on mixing shall be followed. Any such change in mixing procedure shall be recorded in the test report. Two component products shall be mixed as described in 5.2.1 above, but only for one minute. Then, after pouring into a second vessel, 5 % water (upon weight of product) shall be added and thorough mixing continued for a further minute. 5.3 Casting the specimens The products, when mixed, shall be poured immediately into two moulds via the central hole and sealed immediately with the threaded plug and the vent valve closed. After 7 days the moulds shall be dismantled and the polyurethane discs taken out. The disc shall be cut with a sharp knife into the specimens, (50 x 50 x 25) mm (Figure 1). 12 specimens are necessary. 5.4 Storage of the specimens Three specimens shall be stored in each of the conditions shown in Table 1 for the number of days stated. Table 1 - Storage of the specimen Copyrghl European Cornmltlee for Standardlzaton Provlded by IHS under license with CEN No reproducllon or networking perrnllted wlhout lcense from IHS Condition Air Demineralised water 0,l molar KOH Product as supplied 14 days Product contamined with water 14 days 14 days 14 days w w w . b z f x w . c o m EN 12637-1 :2004 (E) 6 Mechanical properties : evaluation after storage At the end of the specified storage period, the specimens shall be wiped dry and placed centrally between the platens of the compression test machine. The machine shall be operated at a strain rate of 2,O mmlmin and the specimens shall be subjected to the loadinglunloading cycle shown at Figure 2. The stresses required to produce the specified rate of deformation shall be recorded, together with the strains, on an x, y plotter. 7 interpretation of results The elasticity of the specimen shall be determined by the stresslstrain plot of the third and final compressive load cycle (from t = 4,125 min to t = 5,375 min). To evaluate the lost work the area between the loading and unloading curves is to be determined in Nmm (area 1 in Figure 3). Additionally the area beneath the stresslstrain curve is to be determined as deformation work (area 2 in Figure 3). 8 Test report The test report shall contain the following informations : a reference to this document; name and address of the test laboratory; identification number and date of the test report; name and address of the manufacturer or supplier of the product; name and identification marks or batch number of the product; date or supply of the product; date of preparation of the test specimens and any deviation from the prescribed method of preparation; procedure of mixing of the product and mixing with water (ratio of the components andlor catalyst, description of mixing equipment, duration of mixing); conditions of storage of prepared specimens prior to test; date of test and details of the test equipment used, including the make, type and capacity and the calibrations details or the identification number of the apparatus; the test results; The lost work and the deformation work in elastic modulus of the specimens, both modified and unmodified, relative to the unmodified product stored in air (control); precision data; date of test report and signature. 6 Copyright European Committee for Standardizaton Provided by IHS under license with CEN No reproduction or networking permitled wthoul lcense from IHS w w w . b z f x w . c o m EN 12637-1 :ZOO4 (E) Dimensions in millimetres Key 1 Filling aperture (Filling hole) 2 Valved vent 3 Cutting line 4 M 12 (1 2 pieces) 5 Steel cylinder 0; 200 mm 6 Steel plate 0 270 mm Figure 1 - Mould for casting specimen Copyright European Commltee for Standardration Provided by IHS under license with CEN No r?productlon or networkng permlted wilhoul lcense from IHS Not for Resale w w w . b z f x w . c o m EN 12637-1 12004 (E) Key 1 Distance (mm) 2 Time (min) Figure 2 - Time function for compressive testing 8 Copyright European Committee for Standardzaton Provded by IHS under lhcense wlh CEN No reproducton or networking permtted without lcense from IHS Not for Resale w w w . b z f x w . c o m EN 12637-1 :2004 (E) Key 1 Force (N) 2 Compression 3 Area 2 : Deformation work 4 Area 1 : losed work Figure 3 - Typical loading and unloading plot areas Copyrghl European Cornmllee for Slandardzaton Provded by H S under license with CEN No reproducllon or networking permtled wlhoul lcense from IHS Not for Resale w w w . b z f x w . c o m BSI 1 BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. 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