1、 ISO 2015 Fibre-reinforced polymer (FRP) reinforcement for concrete structures Specifications of FRP sheets Polymre renforc par des fibres (PRF) pour larmature du bton Spcifications des feuilles en PRF INTERNATIONAL STANDARD ISO 18319 First edition 2015-04-15 Reference number ISO 18319:2015(E) ISO 1
2、8319:2015(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 inte
3、rnet 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.org Web
4、 www.iso.org Published in Switzerland ISO 18319:2015(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Symbols 1 5 Mechanical properties 2 5.1 General . 2 5.2 Characteristic value of tensile strength . 2 5.3 Characteristic value of Youngs modulus 2 5.4 Characteristic v
5、alue of ultimate strain . 2 6 Appearance and dimensions 2 6.1 Appearance 2 6.2 Dimensions . 2 6.2.1 Length and width 2 6.2.2 Nominal thickness 3 7 Sampling test 3 7.1 Sampling . 3 7.2 Appearance 3 7.3 Dimensions . 3 7.3.1 Conditions of measurement . 3 7.3.2 Width . 3 7.4 Tensile test 3 Annex A (norm
6、ative) Determination of fibre mass per unit area of dry sheet .4 Bibliography 6 ISO 2015 All rights reserved iii Contents Page ISO 18319:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of p
7、reparing 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 represented on that committee. International organizations, governmental and non-governmental,
8、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 this document and those intended for its further maintenance are described in the ISO/
9、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 Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibilit
10、y 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 development of the document will be in the Introduction and/or on the ISO list of pate
11、nt 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 ISO specific terms and expressions related to conformity assessment, as well as info
12、rmation 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, Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 6, Non-traditiona
13、l reinforcing materials for concrete structures.iv ISO 2015 All rights reserved Fibre-reinforced polymer (FRP) reinforcement for concrete structures Specifications of FRP sheets 1 Scope This International Standard specifies requirements for fibre-reinforced polymer (FRP) sheets for upgrading of conc
14、rete members. The methodologies to express the mechanical properties as characteristic values, appearance and dimensions, and sampling test are specified in this International Standard. The properties for design are calculated from the characteristic values, as prescribed in an appropriate design co
15、de which is in accordance with ISO 14484. The fibre orientation of the FRP sheets covered by this International Standard is unidirectional. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For
16、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 291, Plastics Standard atmospheres for conditioning and testing ISO 10406-2, Fibre-reinforced polymer (FRP) reinforcement of concrete Test m
17、ethods Part 2: FRP sheets ISO 5725, Accuracy (trueness and precision) of measurement methods and results 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 10406-2 and the following apply. 3.1 dry sheet fibres in sheet form including sizing agent and we
18、ft, before application of the saturating resin matrix 3.2 sizing agent any material applied to fibres to facilitate the handling and use of the fibres Note 1 to entry: Sizing agent is synonymous with size which is described in ISO 10548. 3.3 weft thread to shape bundles in sheet form 4 Symbols See T
19、able 1. INTERNATIONAL ST ANDARD ISO 18319:2015(E) ISO 2015 All rights reserved 1 ISO 18319:2015(E) Table 1 Symbols Symbol Unit Description Referencet mm nominal thickness 6.2.2 s g/m 2 fibre mass per unit area 6.2.2 g/cm 3 density 6.2.2 5 Mechanical properties 5.1 General The mechanical properties o
20、f FRP sheet shall be expressed by the characteristic values of tensile strength, Youngs modulus, and ultimate strain. The tests shall be conducted in accordance with Clause 6. 5.2 Characteristic value of tensile strength Characteristic value of tensile strength shall be determined by subtracting thr
21、ee times the standard deviation from the mean strength. The definitions of the standard deviation and mean strength are provided in ISO 10406-2. 5.3 Characteristic value of Youngs modulus Characteristic value of Youngs modulus shall be the mean value, the definition of which is provided in ISO 10406
22、-2. 5.4 Characteristic value of ultimate strain Characteristic value of ultimate strain shall be determined by the characteristic value of tensile strength divided by the characteristic value of Youngs modulus. 6 Appearance and dimensions 6.1 Appearance The dry sheet shall have a smooth surface with
23、out folds and/or remarkable waves by visual inspection. There shall be no remarkable breakage of fibres through whole bundles. 6.2 Dimensions 6.2.1 Length and width The length and width of the dry sheet shall be agreed upon between interested parties.2 ISO 2015 All rights reserved ISO 18319:2015(E)
24、6.2.2 Nominal thickness The nominal thickness, t , of the dry sheet shall be calculated using Formula (1). (1) where sis the fibre mass per unit area of dry sheet, determined by Annex A, expressed in grams per square metres; NOTE The nominal fibre mass per unit area provided by the material manufact
25、urer can be used. is the density of dry sheet, expressed in grams per cubic centimetres. NOTE The nominal density provided by the material manufacturer can be used. 7 Sampling test 7.1 Sampling The number of test pieces for initial testing shall be no fewer than 20. The number of test pieces for per
26、iodic inspection shall be no fewer than five. 7.2 Appearance Defects and their distribution shall be evaluated by inspecting the dry sheet illuminated by daylight or by a daylight-type fluorescent lamp with a colour temperature of 6 500 K 650 K and a power rating of not less than 40 W. 7.3 Dimension
27、s 7.3.1 Conditions of measurement Measurements of dimensions shall be made at room temperature, except that, in cases of dispute, measurements shall be made under standard conditions, as specified in ISO 291. The temperature of 27 C 2 C and the humidity of 65 % 5 % is also applicable for warm countr
28、ies. For measurements made in ambient conditions, due allowance shall be made to dimensional changes with consideration of the differences in temperature and relative humidity at different test locations. 7.3.2 Width The width shall be measured with a precision of 1 mm. 7.4 Tensile test The tensile
29、test shall be conducted in accordance with ISO 10406-2. ISO 2015 All rights reserved 3 ISO 18319:2015(E) Annex A (normative) Determination of fibre mass per unit area of dry sheet A.1 Apparatus a) Metal rule, which has a minimum graduation of 1 mm or less. b) Die, which can cut off a square specimen
30、 of 100 mm 0,5 mm in one side length from the dry sheet shall be used, unless a specimen with an equivalent area is available. c) Balance, with a precision of 0,001 g or above. A.2 Procedure a) Square specimens of 100 mm 0,5 mm shall be cut off from the dry sheet. The edge parts of the sheet (30 mm
31、from the edges) shall not be used since they might contain ears. The number of specimens shall be determined according to the objectives of the test, but at least three specimens are required. b) The mass of each specimen shall be measured with a precision of 0,001 g. c) Fibre mass of the dry sheet
32、shall be determined with sizing agent and weft removed. If the content of the sizing agent is less than 0,5 % in mass fraction, its mass can be ignored. Also, if the content of the weft is less than 0,5 % in mass fraction, its mass can be ignored. A.3 Calculation The fibre mass per unit area of the
33、dry sheet shall be calculated using Formula (A.1). (A.1) where sis the fibre mass per unit area of dry sheet, expressed in grams per square metres; m is the mass of the specimen, expressed in grams; is the mass of the weft of the specimen, expressed in grams; A is the area of the specimen, expressed
34、 in square millimetres; S C is the content of sizing agent, mass of the sizing agent expressed as a percentage of the sized fibre yarn. The results shall be rounded off with a precision of three significant digits in accordance with ISO 5725. When the moisture absorption of the fibre is a concern, f
35、ibre mass shall be corrected by measuring the moisture absorption of the fibre. The content of sizing agent should be determined in accordance with ISO 10548.4 ISO 2015 All rights reserved ISO 18319:2015(E) A.4 Test report The test report shall include the following: a) the results of the individual
36、 determinations (as indicated in A.3) and their mean value; b) any other changes in appearance of the specimens. ISO 2015 All rights reserved 5 ISO 18319:2015(E) Bibliography 1 ISO 10548, Carbon fibre Determination of size content 2 ISO 14484, Performance guidelines for design of concrete structures using fibre-reinforced polymer (FRP) materials6 ISO 2015 All rights reserved ISO 18319:2015(E) ISO 2015 All rights reserved ICS 91.080.40 Price based on 6 pages
