欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D4259-1988(2012) Standard Practice for Abrading Concrete 《混凝土磨蚀的标准实施规程》.pdf

    • 资源ID:516652       资源大小:58.55KB        全文页数:2页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D4259-1988(2012) Standard Practice for Abrading Concrete 《混凝土磨蚀的标准实施规程》.pdf

    1、Designation: D4259 88 (Reapproved 2012)Standard Practice forAbrading Concrete1This standard is issued under the fixed designation D4259; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parenth

    2、eses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice includes surface preparation of concrete toprepare the surface prior to the application of coatings.1.2 This practice is intended to alter

    3、 the surface profile ofthe concrete and to remove foreign materials and weak surfacelaitance.1.3 This standard does not purport 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 prac

    4、tices and determine the applica-bility of regulatory limitations prior to use. For specific hazardstatements, see Section 5.2. Referenced Documents2.1 ASTM Standards:2D4258 Practice for Surface Cleaning Concrete for CoatingD4285 Test Method for Indicating Oil or Water in Com-pressed AirD4541 Test Me

    5、thod for Pull-Off Strength of Coatings UsingPortable Adhesion Testers2.2 Other Standard:ACI-308 Guide to Curing Concrete33. Summary of Practice3.1 This practice is intended to provide a clean,contamination-free, and roughened surface.3.2 Acceptable surfaces shall be free of laitance, formrelease age

    6、nts, curing agents, oil, grease, and other penetratingcontaminants. The surface shall be free of fins, projections andloosely adhering concrete, dirt, and dust particles.3.3 For some applications, a minimum concrete surfacestrength may be required for proper coating performance.3.4 Acceptable method

    7、s of preparation include abrasiveblasting (wet or dry), mechanical abrading, water blasting, andother similar procedures that will alter the surface profile of theconcrete.4. Significance and Use4.1 This practice is used to prepare concrete for coatingswhere optimum bond is desired for service condi

    8、tions such ascontinuous or intermittent immersion, temperature cycling, ormechanical loading.5. Hazards5.1 New concrete shall be cured in accordance with ACI-308.6. Mechanical Abrading Procedure6.1 Suitable SurfacesMechanical abrading is suitable foruse on formed surfaces and floors and for the remo

    9、val of finsand projections.6.2 Pre-Surface Preparation:6.2.1 Remove grease, oil, and other penetrating contami-nants. (See Practice D4258.)6.2.2 Concrete surfaces may be wet or dry as appropriate tothe type of equipment to be used.6.3 Apparatus:6.3.1 Typical apparatus covered by this method are rota

    10、ryimpact, vertical impact, and circular grinding equipment.6.3.2 Use the equipment in accordance with the manufac-turers instructions in an organized manner in order to thor-oughly cover the entire surface to be prepared.6.4 Appearance of Prepared Surface:6.4.1 The intent is to remove sufficient mat

    11、erial in order toachieve a sound concrete surface free of laitance, glaze,efflorescence and incompatible concrete curing compounds orform release agents.6.4.2 The surface shall have a roughened, textured appear-ance.Aggregate may be exposed.Aroughness standard may beestablished by mutual agreement.6

    12、.4.3 The appearance will vary depending upon the equip-ment used and type of concrete.1This practice is under the jurisdiction of ASTM Committee D33 on ProtectiveCoating and Lining Work for Power Generation Facilities and is the directresponsibility of Subcommittee D33.05 on Application and Surface

    13、Preparation.Current edition approved May 1, 2012. Published May 2012. Originallyapproved in 1983. Last previous edition approved in 2006 as D4259 88 (2006).DOI: 10.1520/D4259-88R12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.or

    14、g. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Concrete Institute (ACI), P.O. Box 9094, FarmingtonHills, MI 48333-9094, http:/www.aci-int.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box

    15、 C700, West Conshohocken, PA 19428-2959, United States.6.5 Post-Surface Preparation CleaningClean in accor-dance with Practice D4258 to remove loose material.7. Water Blast Cleaning7.1 Suitable SurfacesThis method is suitable for use onformed surfaces and floors.7.2 Pre-Surface Preparation:7.2.1 Rem

    16、ove grease, oil, and other penetrating contami-nants (see Practice D4258).7.2.2 Correct fins and protruding irregularities by mechani-cal means.7.2.3 Concrete surface may be wet or dry.7.3 ApparatusTypical apparatus covered by this methodis a piston-type positive displacement pump, high-pressurewate

    17、r blasting unit. The cleaning medium shall be potablewater.7.4 Appearance of Prepared Surface:7.4.1 The prepared surface shall be clean and free of dust,dirt, laitance and efflorescence.7.4.2 The surface shall have a roughened textured appear-ance. A roughness standard may be established by mutualag

    18、reement.7.5 Post-Surface Preparation CleaningClean in accor-dance with Practice D4258 to remove loose material.8. Abrasive Blast Cleaning Procedure8.1 Pre-Surface Preparation:8.1.1 Remove grease, oil, and other penetrating contami-nants (see Practice D4258).8.1.2 Correct fins and protruding irregula

    19、rities by mechani-cal means.8.1.3 Concrete surface may be wet or dry as appropriate tothe type of equipment to be used.8.2 Suitable SurfacesThis method is suitable for use onformed surfaces and floors.8.3 Apparatus:8.3.1 Typical methods are wet or dry open-blast cleaningwith nozzles and self-contain

    20、ed recirculating blast-cleaningapparatus.8.3.2 The air stream used for nozzle blast cleaning shall befree of oil. This may be verified using Test Method D4285.8.3.3 Use the equipment in accordance with the manufac-turers instructions.8.4 Appearance of Prepared Surface:8.4.1 The intent is to remove s

    21、ufficient material in order toachieve a sound concrete surface free of laitance, glaze,efflorescence, and incompatible concrete curing compounds orform release agents.8.4.2 The surface shall have a roughened textured appear-ance. A roughness standard may be established by mutualagreement.8.4.3 Some

    22、aggregate may be exposed and bug holes shallbe opened.8.5 Post-Preparation CleaningClean in accordance withPractice D4258 to remove loose material.9. Inspection9.1 Visually examine the prepared surface for loose adher-ing concrete, thin crusts bridging voids, fins, and projections.9.2 Visually exami

    23、ne the prepared surface for oil, grease,and markings.9.3 If required, surface strength may be determined inaccordance with Method D4541 or other agreed upon method.10. Acceptance10.1 Acceptable surfaces shall be free of laitance, oil,grease, and other materials incompatible with the coating. Thesurf

    24、ace shall also be free of fins, projections and looselyadhering concrete, dirt, and dust particles.10.2 The surface shall have a roughened, textured appear-ance. Aggregate may be exposed. Bug holes shall be opened.10.3 The roughened textured appearance shall be similar tothe roughness standard estab

    25、lished by mutual agreement.10.4 If specified, the treated surface shall meet the surfacestrength requirements.11. Keywords11.1 abrading; concrete; laitance; profile; surfacepreparationASTM International takes no position respecting the validity of any patent rights asserted in connection with any it

    26、em mentionedin this standard. Users of this standard are expressly advised that 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 com

    27、mittee and must be reviewed every five years andif not revised, either reapproved 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

    28、meeting of theresponsible technical committee, which you may attend. If you feel 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 Driv

    29、e, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (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 ASTM website (www.astm.org/COPYRIGHT/).D4259 88 (2012)2


    注意事项

    本文(ASTM D4259-1988(2012) Standard Practice for Abrading Concrete 《混凝土磨蚀的标准实施规程》.pdf)为本站会员(explodesoak291)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开