1、Designation:C51119Standard Specification forMixing Rooms,Moist Cabinets,Moist Rooms,and WaterStorage Tanks Used in the Testing of Hydraulic Cementsand Concretes1This standard is issued under the fixed designation C511;the number immediately following the designation indicates the year oforiginal ado
2、ption or,in the 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.Scope*1.1 This specification includes requirements for mixingrooms where paste and mort
3、ar specimens are prepared;and formoist cabinets,moist rooms,and water storage tanks wherepaste,mortar,and concrete specimens are stored.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.Values in SI units shall be obtained by m
4、easurementin SI units or by appropriate conversion,using the Rules forConversion and rounding given in Standard IEEE/ASTM SI10,of measurements made in other units.1.3 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those
5、in tables and figures)shall not be consideredas requirements of this standard.1.4 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,health,and environmental practice
6、s and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Rec
7、om-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C51 Terminology Relating to Lime and Limestone(as usedby the Industry)E77 Test Method for Inspection and Verification of Ther-mometersC125 Terminology Relating to C
8、oncrete and Concrete Ag-gregatesC219 Terminology Relating to Hydraulic CementIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System3.Terminology3.1 Definitions:3.1.1 Refer to Terminology C125 and Terminology C219 fordefinitions of terms used in this test me
9、thod.3.2 Definitions of Terms Specific to This Standard:3.2.1 mixing room,na room with controlled temperatureand relative humidity where cement paste and mortar speci-mens are prepared.3.2.2 moist cabinet,na compartmented storage facility ofmoderate dimensions with controlled temperature and relativ
10、ehumidity.3.2.3 moist room,na“walk-in”storage facility withcontrolled temperature and relative humidity,commonly calleda fog room when the prescribed relative humidity is achievedby the atomization of water.4.Requirements for Cement Mixing Rooms4.1 The temperature of the air in the vicinity of the m
11、ixingslab,molds,and base plates shall be maintained at 23.0 64.0 C and at a relative humidity of not less than 50%.4.2 The temperature of the mixing water used to preparecement paste and mortar specimens shall be 23.0 6 2.0 C.5.Temperature Measuring Devices5.1 Reference Temperature Measuring Deviceu
12、sed toverify the temperature recorder,must be accurate and readableto 0.5 C.A copy of the certificate or report which verifies theaccuracy shall be available in the laboratory.NOTE1The ice-point method described in Test Method E77 may beused to ensure that no damage to the reference thermometer has
13、occurredduring shipping.1This specification is under the jurisdiction of ASTM Committee C01 onCement and is the direct responsibility of Subcommittee C01.95 on Coordination ofStandards.Current edition approved June 15,2019.Published June 2019.Originallyapproved in 1968.Last previous edition approved
14、 in 2013 as C511 13.DOI:10.1520/C0511-19.2For 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.*A Summary of Changes sec
15、tion 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 Pri
16、nciples for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.2 Temperature Recordershall record temperatures every15 min or less and shall be accurate and readable to 1 C.Thedata from the recorder shall be evaluated at a minimum of onceeach week.A record of this evaluation documenting the datechecked,a confirmation that the data is within the requiredtemperature range,and the name of the indi
