1、 ISO 2015 Fibre-reinforced polymer (FRP) reinforcement of concrete Test methods Part 2: FRP sheets Polymre renforc par des fibres (PRF) pour larmature du bton Mthodes dessai Partie 2: Feuilles en PRF INTERNATIONAL STANDARD ISO 10406-2 Second edition 2015-01-15 Reference number ISO 10406-2:2015(E) IS
2、O 10406-2:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the
3、 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 copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.or
4、g Web www.iso.org Published in Switzerland ISO 10406-2:2015(E) ISO 2015 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 3.1 Definitions . 1 3.2 Symbols . 3 4 General provision concerning test pieces 5 5 Test method for determining t
5、ensile properties 5 5.1 Test pieces . 5 5.2 Testing machine and measuring devices 9 5.3 Test method . 9 5.4 Calculation and expression of test results 10 5.5 Test report 11 6 Test method for overlap splice strength .12 6.1 Test pieces 12 6.2 Testing machine 14 6.3 Test method 14 6.4 Calculation and
6、expression of test results 15 6.5 Test report 15 7 Test method for determining bond properties of FRP sheets to concrete 16 7.1 Test pieces 16 7.2 Testing machine and measuring devices .21 7.3 Test method 21 7.4 Calculation and expression of test results 21 7.5 Test report 22 8 Test method for direc
7、t pull-off strength of FRP sheets with concrete .23 8.1 Test pieces 23 8.2 Testing machine and measuring devices .25 8.3 Test method 25 8.4 Calculation and expression of test results 25 8.5 Test report 26 9 Test method for freeze/thaw resistance .26 9.1 Test pieces 26 9.2 Testing machine and measuri
8、ng devices .26 9.3 Test method 27 9.4 Calculation and expression of test results 27 9.5 Test report 28 10 Test method for exposure to laboratory light sources .29 10.1 Test pieces 29 10.2 Testing machine and measuring devices .29 10.3 Test method 30 10.4 Calculation and expression of test results 30
9、 10.5 Test report 31 11 Test method for durability 32 11.1 Types of test methods for durability .32 11.2 Test piece 32 11.3 Test method 33 11.4 Calculation and expression of test results 34 11.5 Test report 34 ISO 10406-2:2015(E) Foreword ISO (the International Organization for Standardization) is a
10、 worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried 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 represente
11、d on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop t
12、his document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different 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
13、Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may 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 d
14、evelopment of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). 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 meaning of
15、 ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information. The committee responsible for this document is ISO/TC 71, Concr
16、ete, reinforced concrete and pre-stressed concrete, Subcommittee SC 6, Non-traditional reinforcing materials for concrete structures. This second edition cancels and replaces the second edition (ISO 10406:2008), which has been technically revised. ISO 10406 consists of the following parts, under the
17、 general title Fibre-reinforced polymer (FRP) reinforcement of concrete Test methods: Part 1: FRP bars and grids Part 2: FRP sheetsiv ISO 2015 All rights reserved INTERNATIONAL ST ANDARD ISO 10406-2:2015(E) Fibre-reinforced polymer (FRP) reinforcement of concrete Test methods Part 2: FRP sheets 1 Sc
18、ope This part of ISO 10406 specifies test methods applicable to fibre-reinforced polymer (FRP) sheets for the upgrading of concrete members. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For
19、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 31-0:1992, Quantities and units Part 0: General principles ISO 291, Plastics Standard atmospheres for conditioning and testing ISO 4892 (al
20、l parts), Plastics Methods of exposure to laboratory light sources ISO 5725 (all parts), Accuracy (trueness and precision) of measurement methods and results ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and
21、calibration of the force-measuring system 3 T erms a nd definiti ons 3.1 Definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 a c c e l e r a t e d a r t i f i c i a l e x p o s u r e t e s t i n g m a c h i n e machine that creates reproducible standard te
22、st conditions to accelerate weathering artificially 3.1.2 ambient temperature environmental conditions corresponding to the usual atmospheric conditions in laboratories with uncontrolled temperature and humidity 3.1.3 anchorage block block corresponding to the test block to prevent bond failure of t
23、he FRP sheet Note 1 to entry: Additional FRP sheet circumferentially jackets the block with sheets being tested to provide higher bond strength (in this block). ISO 2015 All rights reserved 1 ISO 10406-2:2015(E) 3.1.4 anchoring portion end parts of a test piece fitted with anchoring devices to trans
24、mit loads from the testing machine to the test portion 3.1.5 bond strength strength calculated by dividing the maximum load by the effective bond area 3.1.6 concrete block rectangular block of concrete used to study the bond properties of FRP sheets to concrete Note 1 to entry: Steel reinforcement o
25、r steel bars are embedded in the axial direction at the centre of the cross- sectional area of the concrete block in order to transmit tensile strength. Concrete blocks are made up of a test block and an anchorage block. 3.1.7 conditioning storage of test pieces at a prescribed temperature and humid
26、ity to keep them under identical conditions before testing 3.1.8 coupon test piece test piece selected from the same lot that is unexposed and subjected to the tensile strength and overlap splice strength tests 3.1.9 effective bond area area estimated using the effective bond length and the bond wid
27、th of the FRP sheet 3.1.10 effective bond length length of the portion in which the bond stress between the FRP sheet and the concrete acts effectively at maximum load before the FRP sheet comes loose from the concrete 3.1.11 f ibr e bu nd le several fibre filaments bound together to form a bundle 3
28、.1.12 f i b r e m a s s p e r u n i t a r e a mass of fibre in the direction of reinforcement in dry sheet (fibre sheets before impregnation with resin) Note 1 to entry: Expressed as mass per square metres. 3.1.13 interfacial fracture energy amount of energy per unit bond area necessary to produce i
29、nterfacial fracture 3.1.14 overlap splice strength retention rate ratio of the overlap splice strength after accelerated artificial exposure or freezing/thawing compared with the overlap splice strength before accelerated artificial exposure or freezing/thawing Note 1 to entry: The overlap splice st
30、rength retention is rate expressed as a percentage. 3.1.15 plate FRP sheet impregnated with resin from which the test pieces are cut2 ISO 2015 All rights reserved ISO 10406-2:2015(E) 3.1.16 pull-out strength strength calculated by dividing the maximum load by the cross-sectional area of the bond sur
31、face of the steel device 3.1.17 steel device mechanism made of steel connected to a loading machine to apply tensile force Note 1 to entry: Adhesive is used to mount the device to the FRP sheet attached to the concrete surface. The shape of the bond surface is either square or circular. 3.1.18 tab p
32、late made of fibre-reinforced polymer, aluminium, or any other suitable material bonded to the test piece to transmit loads from the testing machine to the test portion 3.1.19 tensile capacity maximum tensile load which the test piece bears during the tensile test 3.1.20 tensile strength retention r
33、ate ratio of the tensile strength after accelerated artificial exposure or freezing/thawing compared with the tensile strength before accelerated artificial exposure or freezing/thawing Note 1 to entry: The tensile strength retention rate is expressed as a percentage. 3.1.21 test block block used to
34、 study the bond properties of FRP sheets 3.1.22 test portion part of a test piece that is in between the anchoring portions and is subjected to testing 3.1.23 ultimate strain strain corresponding to the tensile capacity 3.1.24 weathering physical and chemical changes of material properties due to ex
35、posure to sunlight, rain, snow, and other outdoor natural conditions 3.2 Symbols See Table 1. Table 1 Symbols Symbol Unit Description Reference A mm 2 Nominal cross-sectional area (general) 5.4 A A mm 2 Nominal cross-sectional area of type A test piece 5.4, 6.4 A B mm 2 Nominal cross-sectional area
36、of type B test piece 5.4, 6.4 A s mm 2 Area of steel device 8.4 b av mm Average width of FRP sheet 7.4 ISO 2015 All rights reserved 3 ISO 10406-2:2015(E) Symbol Unit Description Reference b t,min mm Minimum width of test piece 5.4, 6.4 E f N/mm 2 Youngs modulus 5.4, 7.4 f au N/mm 2 Bond strength 8.4
37、 f fu N/mm 2 Tensile strength 5.4 f N/mm 2 Average value for tensile strength before treating, e.g. freezing and thawing or accelerated artificial exposure 9.4, 10.4 f N/mm 2 Average value for tensile strength after treating, e.g. freez- ing and thawing or accelerated artificial exposure 9.4, 10.4 f
38、 fus N/mm 2 Overlap splice strength 6.4 f N/mm 2 Average value for overlap splice strength before treating, e.g. freezing and thawing or accelerated artificial exposure 9.4, 10.4 f N/mm 2 Average value for overlap splice strength after treating, e.g. freezing and thawing or accelerated artificial ex
39、posure 9.4, 10.4 F au N Maximum load 8.4 F last N The load included in the last simultaneously recorded pair of values of the load and the strain when determining the ultimate strain 5.4.5 F u N Tensile capacity 5.4, 6.4 G f N/mm Interfacial fracture energy 7.4 L A1 mm Anchoring portion length 5.1.1
40、 L A2 mm Anchorage thickness 5.1.1 L A3 mm Anchorage length 5.1.1 L end mm Width at both ends 5.1.1 L ga mm Gauge length 5.1.1 L th mm Thickness 5.1.1 L tot mm Total length 5.1.1 l mm Effective bond length in test portion of FRP sheet 7.4 N t Number of fibre bundles in test piece 5.4 n Number of pli
41、es of the sheet 7.4 n u strands/mm Number of fibre bundles per unit area of the sheet 5.4 P max N Maximum load 7.4 R ets % Overlap splice strength retention 9.4 R ett % Tensile strength retention 9.4 t mm Thickness of sheet, equal to n 7.4 F N Difference between loads at two points at 20 % and 50 %
42、of tensile capacity 5.4 S g/m 2 Fibre mass per unit area of dry sheet 5.4, 6.4, 7.4 sh g/cm 3 Density of dry sheet 5.4, 6.4, 7.4 last The strain included in the last simultaneously recorded pair of values of the load and the strain when determining the ultimate strain 5.4.5Table 1 (continued) 4 ISO
43、2015 All rights reserved ISO 10406-2:2015(E) Symbol Unit Description Reference Difference in strain between the two points used to calcu- late F 5.4.5 Ultimate strain 5.4 u N/mm 2 Bond strength 7.4 4 General provision concerning test pieces Unless otherwise agreed upon, test pieces shall be taken fr
44、om the sheet in the “as delivered” condition. For the determination of the mechanical properties in the tensile, bond, and anchorage tests, the test piece may be artificially aged (after straightening, if applicable) depending on the performance requirements of the product. When a test piece is “age
45、d”, the conditions of the ageing treatment shall be stated in the test report. 5 Test method for determining tensile properties 5.1 Test pieces 5.1.1 Types and dimensions Two types of test pieces may be used (see Figure 1 and Table 2). a) Type A test pieces: Prepare type A test pieces in accordance
46、with the method described in 6.1.2.1 and use them for the general tension test. The shape and the dimensions of type A test pieces are given in Figure 1 and Table 2, respectively. b) Type B test pieces: Prepare type B test pieces in accordance with the method described in 6.1.2.2. These test pieces
47、are suitable for FRP sheets in which the fibre bundles consist of a number of filaments that can be easily separated into individual bundles. L tot L ga L A1 L A3 L A1 L A3 L end L th L A2 NOTE See Table 2 for definitions of symbols and dimensions. Figure 1 Shape of type A and type B test piecesTabl
48、e 1 (continued) ISO 2015 All rights reserved 5 ISO 10406-2:2015(E) Table 2 Dimensions of test pieces Dimensions in millimetres Symbol Dimension for the types of test piece Type A Type B L tottotal length 200 L endwidth at both ends 12,5 0,5 10 to 15 L ththickness Recommended not to exceed 2,5 L gaga
49、uge length 100 L A1anchoring portion length 35 L A2anchorage thickness 1 to 2 L A3anchorage length 50 NOTE When the peeling off at tabs and the pull-out in the chuck do not occur, the thickness of the test piece can exceed 2,5 mm. When the thickness of the test piece is less than 2,5 mm and fracture at anchoring section occurs, the specification of the anchoring section should be reconsidered. 5.1.2 Preparation 5.1.2.1 Type A test pieces Type A
