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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12189:1999 The Euro
2、pean Standard EN 12189:1999 has the status of a British Standard ICS 91.080.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Products and systems for the protection and repair of concrete structures Test methods Determination of open time Licensed Copy: sheffieldun sheffiel
3、dun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 September 1999
4、BSI 09-1999 ISBN 0 580 32577 6 BS EN 12189:1999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 12189:1999. The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete, to Subcommi
5、ttee B/517/8, Repair and protection of concrete, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Eu
6、ropean developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request 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
7、Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
8、for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this doc
9、ument indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 12189 NORME EUROPENNE EUROPISCHE NORMMay 1999 ICS 91.080.40; 91.100.30 English version Products and systems for the prote
10、ction and repair of concrete structures Test methods Determination of open time Produits et systmes pour la protection et la rparation des structures en bton Dtermination du temps ouvert Produkte und Systeme fr den Schutz und die Instandsetzung von Betontragwerken Prfverfahren Bestimmung der Offenze
11、it This European Standard was approved by CEN on 16 April 1999. 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 re
12、ferences 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
13、 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portuga
14、l, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart, 36 B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for
15、CEN national Members.Ref. No. EN 12189:1999 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12189:1999 BSI 09-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 104, Concrete (performance, produc
16、tion, placing and compliance criteria), the Secretariat of which is held by DIN. 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 November 1999, and conflicting national standards shall be withdraw
17、n at the latest by November 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lu
18、xembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. It has been prepared by Subcommittee 8, Products and systems for the protection and repair of concrete structures (Secretariat AFNOR). NOTE This standard should be read together with EN 15041 and prEN 15044.
19、Contents Page Foreword2 1 Scope3 2 Normative references3 3 Test method3 4 Equipment3 5 Test procedure4 5.1 Sampling material4 5.2 Number of test specimens4 5.3 Concrete prisms4 5.4 Conditioning4 5.5 Procedure4 6 Report5 Annex A (informative) Bibliography7 Licensed Copy: sheffieldun sheffieldun, na,
20、Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12189:1999 BSI 09-1999 1 Scope This European Standard describes a method for the measurement of the open time of structural bonding agents by use of bonded concrete prisms tested in flexure. 2 Normative references This European
21、 Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications app
22、ly to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 4801, Admixtures for concrete, mortar and grout Test methods Part 1: Reference concrete and reference mortar for testing. prEN 1766
23、, Products and systems for the protection and repair of concrete structures Test methods Reference concretes for testing. 3 Test method The open time is defined as the period that elapses between the completion of mixing of the bonding agent and the longest time to closing of the joint which results
24、 in a failure plane within the concrete. The open time is measured using the results from tensile bending tests performed on a series of concrete test prisms which have been bonded using the same mix of bonding agent but with the pairs of prisms being brought together at predetermined intervals afte
25、r application of the bonding agent. For those test prisms bonded within the open time the tensile bending test should result in fracture in the concrete. When fracture occurs within the bond line it is considered that the test prisms concerned were bonded outside the open time. 4 Equipment 4.1 Steel
26、 moulds, for producing concrete test pieces of size 40 mm 40 mm 80 mm. 4.2 Concrete mixer, as in EN 480-1. 4.3 Grit blasting equipment. 4.4 A stop clock, calibrated in minutes to a maximum of 120 min. 4.5 Clamping frames, as shown in Figure 1, capable of applying a compressional longitudinal force o
27、f 320 N and maintaining this force on the bonded concrete prisms during the tensile bending test. 4.6 Testing machine, capable applying a force at a rate of (50 10) N/s up to 20 kN during the tensile bending test. 4.7 Steel support frame, support rollers, loading rollers and spreader beam as shown i
28、n Figure 2 for four point bending test on bonded concrete prisms. 4.8 Thermometer. 4.9 Relative humidity equipment. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 12189:1999 BSI 09-1999 5 Test procedure 5.1 Sampling material The b
29、onding agent to be tested shall be taken from one production batch. 5.2 Number of test specimens Flexural tests shall be carried out on six bonded concrete prisms. The concrete prisms shall be bonded at different time intervals after application of the bonding agent (see 5.5). 5.3 Concrete prisms Co
30、ncrete test prisms, measuring 40 mm 40 mm 80 mm and using reference concrete Type MC (0,40) shall be manufactured and cured for at least 21 days in accordance with prEN 1766. One end face of each prism shall then be grit blasted in accordance with prEN 1766. 5.4 Conditioning The concrete test prisms
31、 and the resin and hardener component of the bonding agent shall be conditioned at the test temperature, which is at the upper limit of the specified application temperature range of the particular formulation under test. NOTE The most demanding conditions have been selected for the test, i.e. high
32、strength concrete and the upper limit of the specified application temperature. 5.5 Procedure The components of the bonding agent shall be mixed at the test temperature in accordance with the manufacturers instructions. Immediately on completion of mixing the stop clock shall be started and after 10
33、 min have elapsed the bonding agent shall be applied in a layer about 2 mm thick to the prepared end face of one concrete prism in each pair. Appropriate spacers shall be used to control the thickness of the bonding agent. At intervals, for example at 30 min, 45 min, 60 min, 75 min, 90 min and 105 m
34、in after application of the bonding agent, the corresponding face of the other concrete prism in each pair shall be placed against the coated face and the two prisms shall be clamped together in the frame shown in Figure 1 with a clamping force normal to the bonded interface of (320 20) N. This gene
35、rates a compressive stress of 0,20 N/mm2 in the bond plane. The complete assemblies shall then be cured at the test temperature for 7 days or such other time that may be agreed between interested parties. At the end of the specified curing period the assembly shall be mounted in the support frame as
36、 shown in Figure 2 and positioned within the testing machine. The load shall be applied vertically by means of the spreader beam and it shall be increased uniformly at a rate of (50 10) N/s until fracture. Record the position of the failure plane for each pair of prisms. Licensed Copy: sheffieldun s
37、heffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 12189:1999 BSI 09-1999 6 Report The report shall include the following information: a) name and address of the testing laboratory, and the place at which the tests were performed if different from the laboratory
38、 address; b) date and identification number of the test report; c) name and address of the client; d) identification of the product; e) purpose of the test; f) date of receipt and complete identification of the samples of bonding agents to be tested; g) description and marking of the specimens; h) d
39、escription of the preparation of the specimens, including full details of any priming system used and thickness (or mass) of primer or bonding agent applied; i) date of the test performance; j) any deviations from or additions to the test method, and any omissions, together with other information of
40、 importance for the interpretation of the observation and the evaluation of the test result; k) the conditioning, curing and test temperature; l) curing period in days between bonding and testing; m) for each specimen: 1) the elapsed time interval between application of the bonding agent and closing
41、 of the joint; 2) the failure load recorded in the tensile bending test; 3) the position of the failure plane; n) the open time of the structural bonding agent, taken as the longest time interval between application of the bonding agent and closing of the joint which results in a failure plane withi
42、n the concrete; o) reference to this European Standard. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 12189:1999 BSI 09-1999 Figure 1 Clamping frame Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006,
43、Uncontrolled Copy, (c) BSI Page 7 EN 12189:1999 BSI 09-1999 Key Span between support rollers = 150 mm Span of spreader beam = 50 mm Figure 2 Four point bend test Annex A (informative) Bibliography 1 FIP/9/2, Proposal for a standard for acceptance tests and verification of epoxy bonding agents for se
44、gmental construction. Fdration Internationale de la Prcontrainte, March 1978. 2 EN 15041, Products and systems for the protection and repair of concrete structures Definitions, requirements, quality control and evaluation of conformity Part 1: General scope and definitions. 3 prEN 15044, Products an
45、d systems for the protection and repair of concrete structures Definitions, requirements, quality control and evaluation of conformity Part 4: Structural bonding. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 09:07:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12189:1999 BSI 389 Chisw
46、ick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standa
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