温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,汇文网负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。
网站客服:3074922707
TM_C_803_
_C_803M_
_17
Designation:C803/C803M17Standard Test Method forPenetration Resistance of Hardened Concrete1This standard is issued under the fixed designation C803/C803M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of the resis-tance of hardened concrete to penetration by either a steelprobe or pin.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.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 practices and determine the applica-bility of regulatory limitations prior to use.For specific hazardstatements,see Section 7.2.Referenced Documents2.1 ASTM Standards:2C125 Terminology Relating to Concrete and Concrete Ag-gregatesC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction Materials2.2 ANSI Standard:A10.3 Safety Requirements for Powder Actuated FasteningSystems33.Terminology3.1 Definitions:3.2 For definitions of terms used in this test method,refer toTerminology C125.4.Summary of Test Method4.1 A driver delivers a known amount of energy to either asteel probe or pin.The penetration resistance of the concrete isdetermined by measuring either the exposed lengths of probesthat have been driven into the concrete or by measuring thedepth of the holes created by the penetration of the pins into theconcrete.5.Significance and Use5.1 This test method is applicable to assess the uniformity ofconcrete and to delineate zones of poor quality or deterioratedconcrete in structures.5.2 This test method is applicable to estimate in-placestrength,provided that a relationship has been experimentallyestablished between penetration resistance and concretestrength.Such a relationship must be established for a giventest apparatus(see also 9.1.5),using similar concrete materialsand mixture proportions as in the structure.Use the proceduresand statistical methods inACI 228.1R for developing and usingthe strength relationship.4NOTE1 Since penetration results may be affected by the nature of theformed surfaces(for example,wooden forms versus steel forms),corre-lation testing should be performed on specimens with formed surfacessimilar to those to be used during construction.Additional information onthe factors affecting penetration test results and summaries of pastresearch are available.4,55.3 Steel probes are driven with a high-energy,powder-actuated driver,and probes may penetrate some aggregateparticles.Probe penetration resistance is affected by concretestrength as well as the nature of the coarse aggregate.Steel pinsare smaller in size than probes and are driven by a low energy,spring-actuated driver.Pins are intended to penetrate themortar fraction only;therefore,a test in which a pin strikes acoarse aggregate particle is disregarded.5.4 This test method results in surface damage to theconcrete,which may require repair in exposed architecturalfinishes.1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.64 on Nondestructive and In-Place Testing.Current edition approved Jan.1,2017.Published February 2017.Originallyapproved in 1975.Last previous edition approved in 2010 as C803/C803M03(2010).DOI:10.1520/C0803_C0803M-17.2For referenced ASTM standards,visit the ASTM website,www.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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4ACI 228.1R-95,“In-Place Methods to Estimate Concrete Strength,”Report ofACI Committee 228 on Nondestructive Testing,American Concrete Institute,Farmington Hills,MI.5Malhotra,V.M.,and Carette,G.G.,“Penetration Resistance Methods,”Chapter 2 in Handbook on Nondestructive Testing of Concrete,Malhotra,V.M.,andCarino,N.J.,eds.,CRC Press,Boca Raton,FL,1991,pp.1938.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recomm