1、June 2011 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91
2、.100.50!$rD“1792533www.din.deDDIN EN 15812Polymer modified bituminous thick coatings for waterproofing Determination of crack bridging abilityEnglish translation of DIN EN 15812:2011-06Kunststoffmodifizierte Bitumendickbeschichtungen zur Bauwerksabdichtung Bestimmung des RissberbrckungsvermgensEngli
3、sche bersetzung von DIN EN 15812:2011-06Revtements bitumineux pais modifis aux polymres pour impermabilisation Dtermination de laptitude ponter les fissuresTraduction anglaise de DIN EN 15812:2011-06www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considere
4、d authoritative.1105.11 DIN EN 15812:2011-06 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 361 “Project Committee Polymer modified bituminous thick coatings for waterproofing Definitions/requirements and test methods” (Secretar
5、iat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-02-19 AA Kunststoffmodifizierte Bitumendickbeschichtung zur Bauwerksabdichtung (SpA zu CEN/TC 361). 2 EUROPEAN S
6、TANDARD NORME EUROPENNE EUROPISCHE NORM EN 15812 March 2011 ICS 91.100.50 English Version Polymer modified bituminous thick coatings for waterproofing Determination of crack bridging ability Revtements bitumineux pais modifis aux polymres pour impermabilisation Dtermination de laptitude ponter les f
7、issures Kunststoffmodifizierte Bitumendickbeschichtungen zur Bauwerksabdichtung Bestimmung des Rissberbrckungsvermgens This European Standard was approved by CEN on 13 February 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving t
8、his 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official v
9、ersions (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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austr
10、ia, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPE
11、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15812:2011: EEN 15812:2011 (E)
12、 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Apparatus .46 Sampling .57 Test specimens 57.1 General 57.2 Method A .57.2.1 Substrate 57.2.2 Coating 57.2.3 Conditioning of test specimens .57.2.4 Processing bending test (method A) .57.3 Method B .
13、67.3.1 Substrate 67.3.2 Coating 77.3.3 Conditioning of test specimens .77.3.4 Processing tensile test (method B)78 Procedure .89 Expression of results and precision 89.1 Expression of results 89.2 Precision .810 Test report 9DIN EN 15812:2011-06 EN 15812:2011 (E) 3 Foreword This document (EN 15812:2
14、011) has been prepared by Technical Committee CEN/TC 361 “Project Committee Polymer modified bituminous thick coatings for waterproofing Definitions/requirements and test methods”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, eithe
15、r by publication of an identical text or by endorsement, at the latest by September 2011, and conflicting national standards shall be withdrawn at the latest by September 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN a
16、nd/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Cz
17、ech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 15812:2011-06 EN 15812:2011 (E) 4 1 Scop
18、e This European Standard specifies two methods (method A and method B) for determining the crack bridge properties of polymer modified bituminous thick coatings for waterproofing. The two test methods may be applied equally. 2 Normative references The following referenced documents are indispensable
19、 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 1062-7:2004, Paints and varnishes Coating materials and coating systems for exterior masonry and c
20、oncrete Part 7: Determination of crack bridging properties EN 1766:2000, Products and systems for the protection and repair of concrete structures Test methods Reference concretes for testing FprEN 15814:2011, Polymer modified bituminous thick coatings for waterproofing Definitions and requirements
21、ISO 554, Standard atmospheres for conditioning and/or testing Specifications 3 Terms and definitions For the purposes of this document, the terms and definitions given in FprEN 15814:2011 and the following apply. 3.1 crack bridge ability ability of a product to bridge a crack under specified conditi
22、ons and without damage 4 Principle After coating the substrate, a defined crack is made in the substrate at a nominal crack point. The applied bitumen coating is stretched over this crack. The mechanical stress is applied to the bitumen coating. The crack width is continuously enlarged with defined
23、speed. The measurement is finished, when a failure in the bitumen coating occurs or when the required crack width is reached. The required crack width is kept constant for a period of 24 h. After that period a visual judgement is made. The crack-bridging properties are determined at a specified temp
24、erature. Two different test methods can be applied: The bending test (method A) or the tensile test (method B). 5 Apparatus The test apparatus shall ensure that the movement of the cracks lies between given limits, and that shearing (horizontal and vertical movement) of the crack is avoided during t
25、he measurement. It shall be provided with a device for maintaining the temperature at which the determination of the crack-bridging properties is to be carried out (normally 4 C). The tolerance of the test temperature shall be 1 C. DIN EN 15812:2011-06 EN 15812:2011 (E) 5 6 Sampling The specimen pre
26、paration is to be made in accordance with the manufacturer instruction. Usually the preparation is accomplished at room temperature. 7 Test specimens 7.1 General Take at least 2 test specimens. 7.2 Method A 7.2.1 Substrate 7.2.1.1 Dimensions The test piece is a reinforced concrete slab measuring 300
27、 mm 200 mm 40 mm. 7.2.1.2 Fabrication and storage Concrete slabs are fabricated and stored according to EN 1766:2000, 6.3 to 6.5, Type MC 0,45, with a maximum aggregate size of 8 mm. For details see EN 1062-7:2004, Figures C.5 and C.6. The surface of the concrete slab has to be free of substances th
28、at may influence the bonding. After curing process according to EN 1766 the concrete slabs have to be stored at least 7 days in a normal climate of (23 2) C and a relative humidity of (50 5) % in accordance with ISO 554 before they are coated. 7.2.2 Coating The concrete slabs have to be coated in ac
29、cordance with the manufacturers instructions, with a width of 150 mm on the whole length of the slab. At the edges on the long sides of the surface of the slab a strip of 25 mm width is not coated for detecting cracks during the crack-bridging test. The test pieces are cured and stored in a climate
30、according to the manufacturers instructions (normally (23 2) C and a relative humidity of (50 5) % in accordance with ISO 554). The thickness of the wet layer has to be applied that after the drying process the required dry layer thickness is achieved with a permitted tolerance of 10 %. The dry laye
31、r thickness should be the minimum possible thickness, but at least 3 mm. To provide the designated dry layer thickness the wet coating has to be levelled off with the help of a frame or gauge of accordant height. 7.2.3 Conditioning of test specimens The test specimen are then subjected to conditioni
32、ng in a normal climate of (23 2) C and a relative humidity of (50 2) % for 28 days. After than the test specimens shall be conditioned under 4 C 1 K for 12 h before testing. 7.2.4 Processing bending test (method A) The tear bridging is tested in a distance or deformation controlled bending tension m
33、achine at a temperature of 4C 1 K according to the load arrangement shown in EN 1062-7:2004, Figure C.6. Then the test can be started with the speed of 0,1 mm/min according to the requirement and till the necessary crack wide is reached. DIN EN 15812:2011-06 EN 15812:2011 (E) 6 The crack width of 2
34、mm has to be controlled with applicative devices for measuring or sensors fixed on both sides of the slab. 7.3 Method B 7.3.1 Substrate 7.3.1.1 Dimensions The test piece is a concrete slab deviating from EN 1062-7:2004, Figure C.10, with a size of 150 mm 150 mm 40 mm. 7.3.1.2 Fabrication and storage
35、 Concrete slabs are fabricated according to EN 1766:2000, 6.3 to 6.5, Type MC 0,45, using a test concrete with the following specifications: test pieces according to EN 1062-7:2004, Figure C.10, but with deviated size (see 7.3.1.1); devoid of the notch; instead of two fasteners on each side of the s
36、lab one tie-rod may be used in the middle of the both sides according to Figure 1. DIN EN 15812:2011-06 EN 15812:2011 (E) 7 Dimensions in millimetres Key 1 tie - rod, round steel with a of 10 mm to 15 mm 2 steel rod, round steel with a of 8 mm to 12 mm 3 steel tube suitable for the round steel 4 pla
37、stic spacer Figure 1 Tensile test with one tie-rod on both sides The surface of the concrete slabs has to be free of substances that may influence the bonding. After storage according to EN 1766 the concrete slabs have to be stored at least 7 days in normal climate of (23 2) C and a relative humidit
38、y of (50 2) % before they are coated. 7.3.2 Coating The concrete slabs are coated over an area of 120 mm 120 mm. The thickness of the wet layer has to be applied that after the drying process the required dry layer thickness is achieved with a permitted tolerance of 10 %. The dry layer thickness sho
39、uld be the minimum possible thickness, but at least 3 mm. To provide the designated dry layer thickness the wet coating has to be levelled off with the help of a frame or gauge of accordant height. 7.3.3 Conditioning of test specimens The test specimen are then subjected to conditioning in a climate
40、 (23 2) C and a relative humidity of (50 5) % for 28 days. After than the test specimens shall be conditioned under (4 1) C for 12 h before testing. 7.3.4 Processing tensile test (method B) Both stainless steels are removed for cleaning from concrete and replaced back into the tubes. Outside the sla
41、b they are fixed e.g. with a piece of rubber, to keep them in the right position. DIN EN 15812:2011-06 EN 15812:2011 (E) 8 Than the test piece is attached to the test machine by locating the tie rods on both sides of the concrete slab into the brackets of the machine. The tie rods are fixed with nut
42、s. The crack width of 2 mm has to be controlled with applicative devices for measuring or sensors fixed on both sides of the slab. The test piece is so positioned that the coated surface can be seen. Now the test can be started with the speed of 0,1 mm/min according to the requirements until the nec
43、essary crack width is reached. 8 Procedure After the crack width is reached, the test apparatus is kept in this position for 24 h with the same temperature used during the test. Afterwards the coating is checked for damages on the surface visually. Changes of any kind (incipient, partial or through
44、thickness cracks) shall be stated in the test report. The test is deemed to have been passed if the crack is bridged in two out of three substrates. 9 Expression of results and precision 9.1 Expression of results The test is passed under the described conditions without any kind of cracks: yes/no. 9
45、.2 Precision Precision data are currently not available. DIN EN 15812:2011-06 EN 15812:2011 (E) 9 10 Test report The test report shall include at least the following information: a) a reference to this European Standard (i.e. EN 15812); b) all details necessary to identify the product tested; c) test method A or B; d) test procedure including: wet layer thickness; dry layer thickness; test temperature; deviation of test conditions; test speed; e) the test results in accordance with Clause 9; f) the date of the tests. DIN EN 15812:2011-06
