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    ASTM C1228-1996(2015) Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete《玻璃纤维增强混凝土的弯曲和冲刷试验用试样制备的标准实施规程》.pdf

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    ASTM C1228-1996(2015) Standard Practice for Preparing Coupons for Flexural and Washout Tests on Glass Fiber Reinforced Concrete《玻璃纤维增强混凝土的弯曲和冲刷试验用试样制备的标准实施规程》.pdf

    1、Designation: C1228 96 (Reapproved 2015)Standard Practice forPreparing Coupons for Flexural and Washout Tests onGlass Fiber Reinforced Concrete1This standard is issued under the fixed designation C1228; the number immediately following the designation indicates the year oforiginal adoption or, in the

    2、 case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers preparation of test coupons to beused in tests of plant manufactur

    3、ed thin-section glass fiberreinforced concrete (GFRC).1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purp

    4、ort to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C94

    5、7 Test Method for Flexural Properties of Thin-SectionGlass-Fiber-Reinforced Concrete (Using Simple BeamWith Third-Point Loading)C1229 Test Method for Determination of Glass Fiber Con-tent in Glass Fiber Reinforced Concrete (GFRC) (Wash-Out Test)3. Significance and Use3.1 Flexural strengths, as deter

    6、mined by Test Method C947,are used for quality control and design of GFRC products andmay be used to verify compliance with specifications and tocollect data in research and development programs. It is,therefore, important that coupons be prepared according to astandard practice. The coupons are use

    7、d to make test specimensfor Test Method C947 and for Test Method C1229 to determinethe amount of glass fiber reinforcement per unit volume ofGFRC for quality control purposes.4. Apparatus4.1 FormThe form shall be rectangular in shape; madefrom wood, fiberglass reinforced plastic (FRP), GFRC, or stee

    8、lwith dimensions of12 in. (13 mm) deep by 18 in. (450 mm)wide and 48 in. (1200 mm) long.4.2 Steel Trowel, at least 20 in. (500 mm) long.4.3 Serrated Roller, with handle.4.4 Strike-Off Bar (screed), at least 20 in. (500 mm) long,for leveling and thickness control of specimens.5. Sampling5.1 Sampling

    9、shall be in accordance with governing speci-fications.6. Procedure6.1 For plant manufactured product quality controlpurposes, spray the glass fiber reinforced material into the testform using the same method as used in production. Themethods and conditions should be the same as for productionmateria

    10、ls except no mist coat or face mix should be used.6.2 Trim off excess material from the sides of the form usinga steel trowel.6.3 Trowel surface smooth using a steel trowel.6.4 See Fig. 1 for cutting layout for flexural test couponsand washout test coupons.7. Curing7.1 Cure the sample panel using th

    11、e same methods andconditions as that used for production products.8. Coding8.1 Identify each sample board, and coupons.9. Retained Samples9.1 Retain samples as prescribed by Test Method C947.1This practice is under the jurisdiction of ASTM Committee C27 on PrecastConcrete Products and is the direct

    12、responsibility of Subcommittee C27.40 on GlassFiber Reinforced Concrete.Current edition approved May 1, 2015. Published June 2015. Originallyapproved in 1993. Last previous edition approved in 2009 as C1228 96(2009).DOI: 10.1520/C1228-96R15.2For referenced ASTM standards, visit the ASTM website, www

    13、.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States110. Ke

    14、ywords10.1 coupons; flexural tests; glass fiber content; glass fiberreinforced concrete (GFRC); strengthASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that

    15、determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapprove

    16、d or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel

    17、 that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual repri

    18、nts (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Locations for Coupons Taken from 18 by 48 by12-in. (450by 1200 by 13-mm) GFRC BoardC1228 96 (2015)2


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