1、Designation:C1090/C1090M15Standard Test Method forMeasuring Changes in Height of Cylindrical Specimens ofHydraulic-Cement Grout1This standard is issued under the fixed designation C1090/C1090M;the number immediately following the designation indicates theyear of original adoption or,in the case of r
2、evision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers measurement of the changes inheight of hydraulic-cement grout by the use of 75
3、 by 150-mm3 by 6-in.cylinders,when the cylinders are protected so thatthe tendency to change in height does not include evaporationso as to cause drying,uptake of moisture,carbonation,orexposure to temperatures outside the range 23 6 2.0C 73 63.5F or,optionally,to another specified temperature con-t
4、rolled within 62.0C 63.5F.1.2 If desired,this test method can be adapted to studies ofchanges in height involving either schedules or environmentaltreatment different from the standard procedures prescribed bythis test method.1.3 The values stated in either SI units or inch-pound unitsare to be rega
5、rded 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 non-conformancewith the standard.Some values have only SI units because theinch-pound equivalents
6、are not used in practice.NOTE1Sieve size is identified by its standard designation in Speci-fication E11.The alternative designation given in parentheses is forinformation only and does not represent a different standard sieve size.1.4 This standard does not purport to address all of thesafety conce
7、rns,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:2C125 Terminology Relating to Concrete and Co
8、ncrete Ag-gregatesC172/C172M Practice for Sampling Freshly Mixed Con-creteC219 Terminology Relating to Hydraulic CementC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC511 Specification for Mixing Rooms,Moist Cabinets,Moist Rooms,and Water Storage Tank
9、s Used in theTesting of Hydraulic Cements and ConcretesC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC827/C827M Test Method for Change in Height at EarlyAges of Cylindrical Specimens of Cementitious MixturesC939/C939M Test Method for Flow of Grou
10、t for Preplaced-Aggregate Concrete(Flow Cone Method)E11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method,referto Terminologies C125 and C219.3.2 Definitions of Terms Specific to This Standard:3.2.1 change
11、 in heighteither an increase or decrease in thevertical dimension of a test specimen,provided the change hasbeen caused by factors other than externally applied forces,changes in ambient temperature not conforming to the speci-fied range,drying caused by evaporation,carbonation,oruptake of moisture.
12、4.Significance and Use4.1 This test method is intended to provide a means ofassessing the ability of a hydraulic-cement grout to retain astable volume during the stipulated testing period of 28 days,provided that the tendency to change height does not includethe effects of drying caused by evaporati
13、on,uptake of moisture,carbonation,or exposure to temperatures outside the range 23.06 2.0C 73 6 3.5F(Note 2).An exception is made when theoptions described in the section on test conditions are exer-cised.NOTE2This test method does not measure the change in height before1This test method is under th
14、e jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.68 on Volume Change.Current edition approved Dec.15,2015.Published March 2016.Originallyapproved in 1988.Last previous edition approved in 2010 as C1090 10.DOI:10.1520/C1090_C1
15、090M-15.2For 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 section appears at the end of this s
16、tandardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 setting(see Test Method C827/C827M).5.Apparatus5.1 Cylinder Molds,steel cylindrical molds with dimensionsas shown in Fig.1 and Table 1,fitted with clamp assemblies forclosing,fitted with a removable 6-mm 14-in.thick steel baseplate that can be clamped in place with the cylinder molds,topedge machined to a narrow rim as shown in Fig.1.NOTE3Satisfactory molds can be made from length
