BS EN 12637-1-2004 Products and systems for the protection and repair of concrete structures - Test methods - Compatibility of injection products - Compatibility with concrete《混凝土结.pdf

1、BRITISH STANDARD BS EN 12637-1:2004 Products and systems for the protection and repair of concrete structures Test methods Compatibility of injection products Part 1: Compatibility with concrete The European Standard EN 12637-1:2004 has the status of a British Standard ICS 91.080.40 BS EN 12637-1:20

2、04 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2 September 2004 BSI 2 September 2004 ISBN 0 580 44411 2 National foreword This British Standard is the official English language version of EN 12637-1:2004. The UK participation in its prepa

3、ration 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 request to its secretary. Cross-references The British Stan

4、dards 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 Electronic Catalogue or of British Standards Online. Thi

5、s 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 to understand the text; present to the responsible inte

6、rnational/European 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. Summary of pages This document comprises a front cover, an inside front cover, the EN

7、title page, pages 2 to 9 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. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN126371 August2004 ICS91.080.40 Englishversion Product

8、sandsystemsfortheprotectionandrepairofconcrete structuresTestmethodsCompatibilityofinjectionproducts Part1:Compatibilitywithconcrete Produitsetsystmespourlaprotectionetlarparationdes structuresenbtonMthodesdessaiCompatibilitdes produitsdinjectionPartie1:Compatibilitaveclebton ProdukteundSystemefrden

9、Schutzunddie InstandsetzungvonBetontragwerkenPrfverfahren VertrglichkeitvonRissfllstoffenTeil1:Vertrglichkeit mitBeton ThisEuropeanStandardwasapprovedbyCENon27February2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthesta

10、tusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslatio

11、n undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania

12、,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbya

13、nymeansreserved worldwideforCENnationalMembers. Ref.No.EN126371:2004:EEN 12637-1:2004 (E) 2 Contents page Foreword3 1 Scope4 2 Normative references4 3 Test principle4 4 General requirements4 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 co

14、mponents.5 5.3 Casting the specimens5 5.4 Storage of the specimens .5 6 Mechanical properties : evaluation after storage.6 7 Interpretation of results6 8 Test report6 EN 12637-1:2004 (E) 3 Foreword This document (EN 12637-1:2004) has been prepared by Technical Committee CEN /TC 104, “Concrete and re

15、lated 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 ident

16、ical 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 CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S

17、tandard: 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. EN 12637-1:2004 (E)

18、 4 1 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 poly

19、urethane 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

20、, the latest edition of the referenced document (including any amendments) applies. ISO 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 pol

21、yurethane 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

22、 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

23、 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 ISO 5893; - mould for casting the product (see Figure 1); - sharp knife; - vessel to store specimens in caustic potash; - x, y

24、 recorder. 4.2 Materials - 0,1 Molar solution of caustic potash (KOH); - the injection product. EN 12637-1:2004 (E) 5 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

25、 a 200 mm , 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 1. The upper plate has a 50 mm diameter threaded feed hole, fitted with a threaded steel plug. Th

26、ere is also a vent fitted with a valve in the upper plate near the perimeter of the chamber formed by the plates and the cylinder. Sheets of waxed paper or silicone release paper should be cut to fit the mould to prevent the injection product sticking to the steel surfaces. The test should be conduc

27、ted at (21 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

28、(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 %

29、 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 componen

30、t 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 immediat

31、ely 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 50 25) mm (Figure 1). 12 specimens are

32、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 Condition Product as supplied Product contamined with water Air 14 days 14 days Demineralised water 14 days 0,1 molar KOH

33、14 days EN 12637-1:2004 (E) 6 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 2,0 mm/min and the

34、 specimens shall be subjected to the loading/unloading 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 s

35、tress/strain 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 stress/strain curve is to be determine

36、d as deformation work (area 2 in Figure 3). 8 Test report The test report shall contain the following informations : a) a reference to this document; b) name and address of the test laboratory; c) identification number and date of the test report; d) name and address of the manufacturer or supplier

37、of the product; e) name and identification marks or batch number of the product; f) date or supply of the product; g) 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 componen

38、ts and/or catalyst, description of mixing equipment, duration of mixing); h) conditions of storage of prepared specimens prior to test; i) 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 appar

39、atus; j) 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); k) precision data; l) date of test report and signature. EN 12637-1:2004 (E) 7 Dimensions in millimetres Ke

40、y 1 Filling aperture (Filling hole) 2 Valved vent 3 Cutting line 4 M 12 (12 pieces) 5 Steel cylinder i 200 mm 6 Steel plate 270 mm Figure 1 Mould for casting specimen EN 12637-1:2004 (E) 8 Key 1 Distance (mm) 2 Time (min) Figure 2 Time function for compressive testing EN 12637-1:2004 (E) 9 Key 1 For

41、ce (N) 2 Compression 3 Area 2 : Deformation work 4 Area 1 : losed work Figure 3 Typical loading and unloading plot areas BS EN 12637-1:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It

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