ISO TS 16774-5-2017 Test methods for repair materials for water-leakage cracks in underground concrete structures - Part 5 Test method for watertightness《地下混凝土结.pdf

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1、 ISO 2017 Test methods for repair materials for water-leakage cracks in underground concrete structures Part 5: Test method for watertightness Mthodes dessai pour matriaux de rparation pour fissures dues leau dans les structures en bton Partie 5: Mthode dessai de ltanchit leau TECHNICAL SPECIFICATIO

2、N ISO/TS 16774-5 Reference number ISO/TS 16774-5:2017(E) First edition 2017-05 ISO/TS 16774-5:2017(E)ii ISO 2017 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utili

3、zed otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyrigh

4、t office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO/TS 16774-5:2017(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Principle 2 5 Apparatus . 2 6 Pr epar

5、ation of the t est specimen and artificial cr ack c onditions .2 7 Procedure. 3 8 Presentation of results . 3 9 Test report . 3 9.1 Information on the repair material of the test target 3 9.1.1 General 3 9.1.2 Other information . 3 9.2 Information on the test 4 Annex A (informative) Example test met

6、hod . 5 Bibliography .15 ISO 2017 All rights reserved iii Contents Page ISO/TS 16774-5:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carri

7、ed out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. I

8、SO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the differen

9、t approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives). Attention is drawn to the possibility that some of the elements of this document ma

10、y be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ pa

11、tents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information a

12、bout ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre- stressed concrete, Subcommitte

13、e SC 7, Maintenance and repair of concrete structures. A list of all parts in the ISO 16774 series can be found on the ISO website.iv ISO 2017 All rights reserved ISO/TS 16774-5:2017(E) Introduction ISO/TR 16475 outlines six basic properties and the required performance levels of water-leakage repai

14、r materials, and ISO/TS 16774-1 through ISO/TS 16774-6 provide test methods designed to evaluate the respective properties of these repair materials. These test methods are intended to serve as references for nations that have not yet developed a test method on the six proposed required performance

15、properties of water leakage repair materials. If other forms of test methods that are simpler, more accurate or more organized are available, such methods are recommended for use instead. Many of the dependent variables outlined in the ISO 16774 series of reference test methods are subject to change

16、 in accordance with the environmental conditions (temperature; chemical substance and concentration; relative humidity; width of movement activity; water pressure or water flow velocity, etc.) outlined in the standards and testing parameters used in respective countries. In ISO/TS 16774-1, ISO/TS 16

17、774-5 and ISO/TS 16774-6, for the purpose of objectively comparing the performance of injected repair materials, artificial cracks of same volume were used to control the usage of repair materials for each testing cycle and enable repetition of the same test methods under the same conditions. ISO 20

18、17 All rights reserved v Test methods for repair materials for water-leakage cracks in underground concrete structures Part 5: Test method for watertightness 1 Scope This document specifies a laboratory test method for evaluating watertightness of water-leakage crack repair materials through permeab

19、ility testing. These permeability test procedures follow applied conditions outlined in different national testing parameters and requirements. As such, the results are only intended to provide a comparative performance evaluation of the waterproofing repair materials between different products of t

20、he same type of repair material. This document outlines general guidelines and procedures for the test method. Specific variables that control the quantifiable parameters of the testing are filled in using relevant national standardizations and/or testing parameters. NOTE 1 This test method classifi

21、es and categorizes materials that are tested into families of similar properties for the purpose of making relative comparisons with the data results. NOTE 2 Each individual repair material can be further tested in an actual construction site application for a complete assessment. 2 Normative refere

22、nces The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) a

23、pplies. ISO/TR 16475, Guidelines for the repair of water-leakage cracks in concrete structures 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO/TR 16475 and the following apply. ISO and IEC maintain terminological databases for use in standardizati

24、on at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org .obp 3.1 repair material material used for preventing the escape of water at cracks in concrete EXAMPLE Injection type grouts, such as

25、synthetic rubberized asphalt, mastic, urethane, poly-urea, etc. Note 1 to entry: In this document, target ingredients are limited to injection materials outlined in ISO/TR 16475. TECHNICAL SPECIFICATION ISO/TS 16774-5:2017(E) ISO 2017 All rights reserved 1 ISO/TS 16774-5:2017(E) 4 Principle Impermea

26、bility to water pressure is one of the fundamental properties that water-leakage repair materials should possess. Property changes in the repair material due to the applied hydro-static pressure can influence the repair materials performance and lead to waterproofing failure. The test method in this

27、 document evaluates the watertightness properties of repair materials injected into a test specimen with an artificial crack through a permeability test (checking for leakage with a specified amount of water pressure), thereby assessing the materials performance in a qualitative method. 5 Apparatus

28、5.1 Air compressor, which should be able to handle minimum air pressure value of 0,1 N/mm 2to 0,3 N/mm 2 . 5.2 Permeability test chamber, which should be able to handle minimum water pressure value of 0,1 N/mm 2to 0,3 N/mm 2(output method). NOTE Conditions outlined in 5.1 and 5.2 are subject to chan

29、ge in accordance with different national testing parameters and requirements. 6 Pr epar ation of the t est specimen and art ificial cr ack c onditions 1) Two separate concrete or mortar substrate parts should be cured to form a water-leakage crack test specimen. The parts consist of upper and bottom

30、 parts, and they should be flat and cylindrical in shape and made using concrete or mortar. NOTE The mix proportion is (water: cement: fine aggregate = 1: 2: 6, mass ratio). Curing period for the mortar or concrete substrate parts is approximately 72 h, but can also be subject to change in accordanc

31、e with different national testing parameters and requirements. 2) The bottom substrate is drilled with evenly spaced holes (2,5 mm) near the centre of the substrate. The pinholes shall be drilled all the way through from one surface of the substrate part to the other. NOTE The purpose of these pinho

32、les is to check for signs of leakage during repair material injection and during permeability testing. 3) Spacers are placed on one surface of the bottom substrate part without covering the pinholes, and the upper substrate part is placed on top of the spacers. The substrate parts, now having formed

33、 the test specimen with the artificial crack, are held together with tape, silicone sealants or other applicable materials along the exterior side. The spacer height represents the width of the crack and can vary depending on the different national testing parameters and requirements. NOTE Any mater

34、ial can be used to hold the two substrate parts together with a crack space in between, but they should leave an inlet in one side for material injection. 4) The injection space should be flushed out with water before injecting the repair material to remove any debris as well as to verify that the i

35、nterior mortar surface is sufficiently wet for repair material injection. After making sure the substrate parts are held together tightly, place the test specimen under water for a specified amount of time. After taking the specimen out of the water, inject the repair material into the specimen. The

36、 injection method varies according to different national testing parameters and requirements. If manufacturers instructions are available, employment of this method is recommended. If debris and other substances are present they should be removed prior to material application. NOTE For detailed and

37、clearer explanation, refer to Annex A.2 ISO 2017 All rights reserved ISO/TS 16774-5:2017(E) 7 Procedure 1) Place the specimen in the permeability test chamber. NOTE The procedure outlined will follow the steps required for the output method of this permeability test. Other methods, if applicable, ca

38、n be used for this step. 2) Fill the chamber with water. Connect the air compressor valves to the air compression chamber. 3) Run the permeability test. NOTE Water/air pressure values are subject to change in accordance with different national test parameter requirements. 4) Observe and record to se

39、e if there is leakage or not with the test specimen. Photos of the specimen and equipment conditions shall be taken at every stage possible during each and every test procedure for recording and information purposes. NOTE For detailed and clearer explanation, refer to Annex A. 8 Presentation of resu

40、lts The results of the repair material evaluation are based on a qualitative assessment of whether the tested material fails its waterproofing performance and leaks under a water pressure value outlined in the applied national test parameters and requirements. These results can be used in the future

41、 as a data base for a guideline on selecting appropriate repair materials with the required watertightness properties in leakage crack surfaces of underground concrete structures. 9 Test report 9.1 Information on the repair material of the test target 9.1.1 General The test report should record the

42、following information on the repair material of the test target: 1) Producer (name, address, phone number). 2) Production date, time, place of the repair material. 3) Type, storage method and authentication of the repair material. 4) Manufacturers product instructions and relevant repair material gu

43、idelines. 5) Data on the chemical composition of repair material as indicated in manufacturers data sheet. 9.1.2 Other information The following information is recorded on demand, if required: 1) Project of the test target. 2) Application areas of the test specimen. 3) Result of some eco-toxicologic

44、al performance tests to account for the release of hazardous substances and the subsequent effects on health and safety. ISO 2017 All rights reserved 3 ISO/TS 16774-5:2017(E) 9.2 Information on the test The test report should record the following information on the test: 1) Test manager. 2) Name, pu

45、rpose of the test. 3) Ambient condition of the lab (temperature, relative humidity, safety conditions etc.). 4) Production time and place of the specimens. 5) Shape and size of the specimens, and the number of replicates of the specimens for repeat test. 6) Identification of the specimens (Lot No. e

46、tc.). 7) Curing and storage conditions. 8) Information on the test repair material (name, producer, validity etc.). 9) Test data (production, measurement, test period etc.). 10) Type of facilities, equipment, tools. 11) Status of test equipment, tools. 12) Test results. 13) Details on other test pro

47、grammes and procedures.4 ISO 2017 All rights reserved ISO/TS 16774-5:2017(E) Annex A (informative) Example test method A.1 Principle This example test method evaluates the watertightness performance of a repair material injected into a test specimen with an artificial crack. The test specimen underg

48、oes permeability testing where the repair material will be placed under a hydrostatic water pressure of approximately 0,1 N/mm 2to 0,3 N/mm 2for one hour to determine the permeability properties of the tested repair material. This example test method employs test parameters and environmental conditi

49、ons outlined in the test standards used in Korea. NOTE This test method requires the usage of fabricated and simulated artificial cracks as illustrated with the specimen used in this example. A.2 Apparatus A.2.1 Air compressor, which should be able to handle minimum air pressure value of 0,1 N/mm 2to 0,3 N/mm 2 . A.2.2 Permeability test chamber, which should be able to handle a minimum water pressure value of 0,1 N/mm 2to 0,3 N/mm 2(output method). NOTE Refer to Figure A.1 a) and b). ISO 2017 All rights reserved 5