ASTM C387 C387M-2011 Standard Specification for Packaged Dry Combined Materials for Mortar and Concrete《砂浆和混凝土用混合材料干包装的标准规格》.pdf

《ASTM C387 C387M-2011 Standard Specification for Packaged Dry Combined Materials for Mortar and Concrete《砂浆和混凝土用混合材料干包装的标准规格》.pdf》由会员分享，可在线阅读，更多相关《ASTM C387 C387M-2011 Standard Specification for Packaged Dry Combined Materials for Mortar and Concrete《砂浆和混凝土用混合材料干包装的标准规格》.pdf（5页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: C387/C387M 11Standard Specification forPackaged, Dry, Combined Materials for Mortar andConcrete1This standard is issued under the fixed designation C387/C387M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year o

2、f 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. Scope*1.1 This specification covers the production, properties,packaging, and testing of packaged, dry, combined materialsfor

3、 concrete and mortars. The classifications of concrete andmortar covered are defined in Section 3.NOTE 1The scope of this standard does not cover mortars for unitmasonry. Dry preblended mortars for unit masonry are covered bySpecification C1714/C1714M.1.2 The values stated in either SI units or inch

4、-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 non-conformancewith the standard.1.3 The following safety hazards ca

5、veat pertains only to thetest method portion of this specification. This standard does notpurport to address all of the safety concerns, if any, associatedwith its use. It is the responsibility of the user of this standardto establish appropriate safety and health practices anddetermine the applicab

6、ility of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cy-lindrical Concrete SpecimensC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 5

7、0-mm CubeSpecimens)C125 Terminology Relating to Concrete and Concrete Ag-gregatesC138/C138M Test Method for Density (Unit Weight),Yield, and Air Content (Gravimetric) of ConcreteC143/C143M Test Method for Slump of Hydraulic-CementConcreteC144 Specification for Aggregate for Masonry MortarC150 Specif

8、ication for Portland CementC173/C173M Test Method for Air Content of FreshlyMixed Concrete by the Volumetric MethodC185 Test Method for Air Content of Hydraulic CementMortarC192/C192M Practice for Making and Curing ConcreteTest Specimens in the LaboratoryC231 Test Method for Air Content of Freshly M

9、ixed Con-crete by the Pressure MethodC260 Specification for Air-Entraining Admixtures for Con-creteC270 Specification for Mortar for Unit MasonryC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC330 Specification for Lightweight Aggregates for Struc-tur

10、al ConcreteC494/C494M Specification for Chemical Admixtures forConcreteC566 Test Method for Total Evaporable Moisture Contentof Aggregate by DryingC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC702 Practice

11、for Reducing Samples of Aggregate to Test-ing SizeC989 Specification for Slag Cement for Use in Concreteand MortarsC1157 Performance Specification for Hydraulic CementC1240 Specification for Silica Fume Used in CementitiousMixtures1This specification is under the jurisdiction of ASTM Committee C09 o

12、nConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.43 on Packaged Dry Combined Materials.Current edition approved Jan. 1, 2011. Published February 2011. Originallyapproved in 1956. Last previous edition approved in 2010 as C387/C387M10.DOI: 10.1520/C0387_C0387M-11.

13、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.1*A Summary of Changes section appears at the end of this sta

14、ndard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.C1437 Test Method for Flow of Hydraulic Cement MortarC1438 Specification for Latex and Powder Polymer Modi-fiers for Hydraulic Cement Concrete and MortarC1714/C1714M Specification

15、for Preblended Dry MortarMix for Unit Masonry3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology C125.3.2 Definitions of Terms Specific to This Standard:3.2.1 concrete, high-early strength, nin packaged, dry,combined materials, a product for buildi

16、ng and repair requiringa more rapid than normal strength development.3.2.1.1 DiscussionThis product allows for earlier removalof forms and allows concrete projects to be put into servicemuch sooner than with normal strength concrete.3.2.2 concrete, normal strength, nin packaged, dry, com-bined mater

17、ials, a product for general building and repairwhere thickness exceeds 50 mm 2 in.3.2.2.1 DiscussionTypical uses include building or repair-ing sidewalks, patios, steps, footings, and for setting posts.3.2.3 concrete, normal strength, lightweight, nin pack-aged, dry, combined materials, a concrete p

18、roduct for buildingand repair where the lightest concrete density is desirable.3.2.3.1 DiscussionThese mixtures will produce concretethat is about 25 to 35 % lower in density than normal weightconcrete.3.2.4 concrete, normal strength, lightweight using normalweight sand, nin packaged, dry, combined

19、materials, aconcrete product for building and repair where a lower densityis desirable.3.2.4.1 DiscussionThese mixtures will produce concretethat is about 15 to 25 % lower in density than normal weightconcrete.3.2.5 mortar, high-strength, nin packaged, dry, combinedmaterials, a product for building

20、or repair requiring a thicknessof less than 50 mm 2 in., or where a high strength mortarmixture is required.3.2.5.1 DiscussionTypical uses include topping andpatching existing concrete structures. Often referred to as“sand mix.”4. Ordering Information4.1 The purchaser shall specify the material desi

21、red asconcrete or high strength mortar and the respective physicalrequirements as specified in Table 1 shall govern.5. Materials5.1 Materials used as ingredients in packaged, dry, com-bined materials for mortar and concrete shall conform to atleast one of the following requirements:5.1.1 Aggregates,

22、 shall conform to Specification C33,Specification C144, or Specification C330.5.1.2 Air-Entraining Admixtures, shall conform to Specifi-cation C260.5.1.3 Blended Cement, shall conform to Specification C595or Performance Specification C1157.5.1.4 Chemical Admixtures, shall conform to SpecificationC49

23、4/C494M.5.1.5 Flyash, shall conform to Specification C618.5.1.6 Ground Granulated Blast-Furnace Slag, shall con-form to Specification C989.5.1.7 Latex and Powder Polymer Modifiers, shall conformto Specification C1438.NOTE 2Type II latex polymers should not be used in applications thatmay be more tha

24、n superficially wet in service.5.1.8 Portland Cement, shall conform to Type I, IA, II, IIA,III or IIIA of Specification C150.5.1.9 Silica Fume, shall conform to Specification C1240.6. Preparation of Aggregate6.1 All aggregates prepared in the laboratory for the purposeof establishing the correct pro

25、portions for the product shall bedried, without disintegration, to a moisture content of less than0.1 % by mass. Verify moisture content using a ventilated ovenin accordance with Test Method C566.7. Proportioning7.1 The proportions of cementitious material and aggregateshall be such that the strengt

26、h requirements will be met whenan amount of mixing water is used that produces for concretethe slump specified in 14.3 and for mortar the flow specified in16.2.8. Physical Properties8.1 Packaged, dry, combined materials for concrete andhigh strength mortar shall conform to the respective physicalreq

27、uirements as given in Table 1 for the material specifiedwhen the prescribed amount of water is added.TABLE 1 Physical RequirementsKind of MaterialCompressive Strength, MPa psi min3 days 7 days 28 daysConcrete:High-early strength 17.0 2500 24.0 3500 . . .Normal strength:Normal weight . . . 17.0 2500

28、24.0 3500Lightweight using normal weight sandA. . . 17.0 2500 24.0 3500Lightweight . . . 17.0 2500 24.0 3500Mortar:High-strength mortar 20.0 3000 35.0 5000ALightweight concrete using normal weight sand may contain some portion of lightweight fines.C387/C387M 1129. Packaging and Package Marking9.1 Al

29、l packages shall be identified as conforming to Speci-fication C387, and as to kind and type of material listed inTable 1 and the net mass in each bag printed thereon.9.2 The yield in liters (or cubic feet), and the amount ofwater recommended for mixing shall be marked on thepackage.NOTE 3The amount

30、 of water recommended should be the amountrequired to produce a slump of 50 to 75 mm 2 to 3 in. for concrete anda flow of 110 6 5 % for high strength mortar.9.3 Container ConstructionThe strength of the containershall be adequate for the mass of concrete or mortar it isintended to contain.10. Reject

31、ion10.1 The purchaser has the right to reject material that failsto conform to the requirements of this specification. Rejectionshall be reported to the Producer or supplier promptly and inwriting.10.2 The purchaser has the right to reject product indamaged or dampened containers.11. Storage11.1 Pro

32、duct must be stored in a dry area and shall not bestored in direct contact with the ground or floor.SAMPLING AND TESTING12. Accuracy of Measurement12.1 Use scales conforming to the applicable sections ofHandbook 44.3New and reconditioned scales shall be accurateto 60.1 % of the total capacity of the

33、 scale. When scales havebeen in use, they shall be accurate to 60.4 % of the totalcapacity of the scale.12.2 Record the mass of concrete in kilograms (pounds) toa minimum accuracy of 0.05 kg 0.1 lb. Record the mass ofmortar in grams to an accuracy of within1gor0.1%,whichever is greater.13. Sampling

34、Concrete13.1 Use a sufficient quantity of whole packages to conductall testing from a single batch.14. Mixing and Testing Concrete14.1 Determine the net mass of concrete in the package (orpackages), then empty into a clean, watertight container.14.2 Mix the concrete, determine the properties of the

35、freshconcrete, and mold and cure the specimens in accordance withthe applicable provisions of Practice C192/C192M, or modifi-cations of them as outlined herein. Test the strength of theconcrete in accordance with Test Method C39/C39M.14.3 Mix the entire sample of the combined, dry material forconcre

36、te either by hand or by machine, except that hand mixingis not applicable to air-entrained concrete.Add mixing water insufficient amount to produce a slump of 50 to 75 mm 2 to 3in.14.4 Use a watertight, clean metal container for handmixing, using either a blunted bricklayers trowel, handsprotected b

37、y rubber gloves, or a shovel, whichever is moreconvenient. Mix the dry batch until the materials appear to beuniformly distributed. Add water while mixing until the con-crete is homogeneous in appearance and has the desired slump.If prolonged mixing is required because of the addition ofmixing water

38、 in increments while adjusting the slump, thebatch must be discarded and a new batch made withoutinterrupting the mixing to make trial slump tests.14.5 Place all materials in the mixer to be used for machinemixing. A mixing period of 3 min followed by a 3-min rest,followed by 2-min final mixing is s

39、uggested, unless a differentprocedure is better adapted to the mixer being used. Cover theopen end of the mixer during the rest period to reduceevaporation. Test the slump in accordance with Test MethodC143/C143M upon completion of the mixing. If the slump testof the mixed batch shows that additiona

40、l water is required,return the sample used for the slump test promptly to the mixer,add additional water, and remix the batch for 2 min. Retest theslump. If the slump is not from 50 to 75 mm 2 to 3 in., discardthe batch.14.6 Discharge the mixed batch into a clean, watertightcontainer that has been p

41、redampened, then remix the batch byhand, using a scoop or trowel, until the batch appears to beuniform. Promptly determine the density in kilograms percubic meter (or pound per cubic foot) in accordance with TestMethod C138/C138M. Return samples used for the slump andunit weight test to the containe

42、r, then remix the batch by handand mold the specimens.14.7 Mold six cylinders from each batch, using threecylinders for test at 7 days and three at 28 days, except that inthe case of high early strength concrete, three cylinders shall betested at 3 days and three at 7 days. Compression testspecimens

43、 shall be cylindrical with a length equal to twice thediameter. The minimum specimen diameter shall be 75 mm 3in., but the maximum diameter is not limited, provided thenumber of specimens for a test as required in this section aremolded from a single batch and the sample taken in accordancewith 13.1

44、. For acceptance, the average of the strengths of thethree specimens tested at each age shall not be less than thecompressive strength required in Table 1 for the type ofconcrete under test and no individual specimen shall have astrength less than 90 % of the required strength.14.8 The report of the

45、 tests of the concrete shall include thefollowing:14.8.1 Net mass of dry, combined material in the bag orbags determined by subtracting the mass of the empty bag orbags from the gross mass of the package.3Specifications, Tolerances, and Other Technical Requirements of Weighingand Measuring Devices,

46、Handbook 44, National Bureau of Standards.C387/C387M 11314.8.2 Amount of mixing water (W) calculated in terms ofkilograms (or pounds) per bag, based on mass of the bag.W5Wb/A!BWb= mass of water added to batch,A = mass of dry material in batch, andB = printed mass of bag contents.14.8.3 Slump in mill

47、imetres (or inches) in accordance withTest Method C143/C143M.14.8.4 Density (D) in kilograms per cubic meter (or poundsper cubic foot) in accordance with Test Method C138/C138M.14.8.5 Yield (Y) of concrete as determined by Test MethodC138/C138M in terms of liters (or cubic feet) per bag, based onpri

48、nted mass of bag contents.14.8.6 Air content, if required, shall be determined by oneof the following Test Methods: C138/C138M, C173/C173M,(suggested for lightweight concrete); or C231. The methodused to determine the air content shall be reported.14.8.7 Compressive strength at the ages specified in

49、 Table 1;report the method of mixing the concrete. State the size of thecylinder used in the report.15. Sampling Mortar15.1 The contents of an entire package of dry, combinedmaterial for high strength mortar shall be used as a sample.Determine the gross mass of the package and contents to thenearest 0.05 kg 0.1 lb. Empty the entire contents of thepackage into a clean, watertight container. Determine the massof the empty package and calculate the net mass of the packagefrom the gross mass of the package and contents. Reduc