ASTM C387 C387M-2006a Standard Specification for Packaged Dry Combined Materials for Mortar and Concrete.pdf

1、Designation: C 387/C 387M 06aStandard Specification forPackaged, Dry, Combined Materials for Mortar andConcrete1This standard is issued under the fixed designation C 387/C 387M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the y

2、ear of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) 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 materi

3、alsfor concrete and mortars. The types of concrete and mortarcovered are described in the following paragraphs in thissection. Some of the mixtures covered by this specificationmay not be available in some areas.1.1.1 High-Early Strength ConcreteFor concrete buildingand repair jobs requiring a more

4、rapid strength developmentsuch as required for the earlier removal of forms.1.1.2 Normal Strength Concrete:1.1.2.1 Normal Weight ConcreteFor general concretebuilding and repair jobs where thicknesses exceed 50 mm 2in. Typical uses include building or repairing sidewalks,patios, steps, footings, and

5、for setting posts.1.1.2.2 Lightweight Concrete Using Normal Weight SandFor concrete building and repair jobs where lower concreteweights are desirable. These mixtures will produce concretewhich is about 15 to 25 % lighter in weight than normal weightconcrete.1.1.2.3 Lightweight ConcreteFor concrete

6、building andrepair jobs where the lightest concrete weight is desirable.These mixtures will produce concrete which is about 25 to35 % lighter in weight than normal weight concrete.1.1.3 High-Strength MortarFor general concrete workrequiring thicknesses of less than 50 mm 2 in. or where ahigh-strengt

7、h grout mixture is required. Typical uses includetopping, patching, and stuccoing. Often referred to as sand mix.1.1.4 Mortars for Unit MasonryFor laying brick, block,and stone, and for masonry repairs. The following three typesof masonry mortar are covered:1.1.4.1 Type NFor general masonry work req

8、uiring nor-mal mortar properties.1.1.4.2 Type SFor use where a higher strength masonrymortar is required.1.1.4.3 Type MFor use where the highest strength ma-sonry mortar is required.1.2 The values stated in either SI or inch-pound units shallbe regarded separately as standard. The values stated in e

9、achsystem are not exact equivalents; therefore, each system shallbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the standard.1.3 The following safety hazards caveat pertains only to thetest method portion of this specification. This standar

10、d 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 applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Stan

11、dards:2C33 Specification for Concrete AggregatesC 39/C 39M Test Method for Compressive Strength of Cy-lindrical Concrete SpecimensC91 Specification for Masonry CementC 109/C 109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in. or 50-mm CubeSpecimens)C 138/C 138M Test Meth

12、od for Density (Unit Weight),Yield, and Air Content (Gravimetric) of ConcreteC 143/C 143M Test Method for Slump of Hydraulic-Cement ConcreteC 144 Specification for Aggregate for Masonry MortarC 150 Specification for Portland CementC 173/C 173M Test Method for Air Content of FreshlyMixed Concrete by

13、the Volumetric MethodC 185 Test Method for Air Content of Hydraulic CementMortarC 192/C 192M Practice for Making and Curing ConcreteTest Specimens in the LaboratoryC 207 Specification for Hydrated Lime for Masonry Pur-posesC 231 Test Method for Air Content of Freshly MixedConcrete by the Pressure Me

14、thod1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.43 on Packaged Dry Combined Materials.Current edition approved July 1, 2006. Published August 2006. Originallyapproved in 1956. Last previous

15、 edition approved in 2006 as C 387 06.2For 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

16、section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.C 260 Specification for Air-Entraining Admixtures for Con-creteC 270 Specification for Mortar for Unit MasonryC 305 Practice for Mechanical Mi

17、xing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC 330 Specification for Lightweight Aggregates for Struc-tural ConcreteC 494/C 494M Specification for Chemical Admixtures forConcreteC 595 Specification for Blended Hydraulic CementsC 618 Specification for Coal Fly Ash and Raw or Calci

18、nedNatural Pozzolan for Use in ConcreteC 702 Practice for Reducing Samples of Aggregate toTesting SizeC 989 Specification for Ground Granulated Blast-FurnaceSlag for Use in Concrete and MortarsC 1157 Performance Specification for Hydraulic CementC 1240 Specification for Silica Fume Used in Cementiti

19、ousMixturesC 1329 Specification for Mortar CementC 1437 Test Method for Flow of Hydraulic Cement MortarC 1438 Specification for Latex and Powder Polymer Modi-fiers for Hydraulic Cement Concrete and MortarC 1506 Test Method for Water Retention of HydraulicCement-Based Mortars and PlastersE 96/E 96M T

20、est Methods for Water Vapor Transmission ofMaterials3. Ordering Information3.1 The purchaser shall specify the material desired asconcrete, high strength mortar, or mortar for use with unitmasonry, and the respective physical requirements as specifiedin Table 1 shall govern.4. Materials4.1 Materials

21、 used as ingredients in packaged, dry, com-bined materials for mortar and concrete shall conform to atleast one of the following requirements:4.1.1 Aggregates, shall conform to Specification C33,Specification C 144, or Specification C 330.4.1.2 Air-Entraining Admixtures, shall conform to Specifi-cat

22、ion C 260.4.1.3 Blended Cement, shall conform to Specification C 595or Performance Specification C 1157.4.1.4 Chemical Admixtures, shall conform to SpecificationC 494/C 494M.4.1.5 Flyash, shall conform to Specification C 618.4.1.6 Ground Granulated Blast-Furnace Slag, shall con-form to Specification

23、 C 989.4.1.7 Hydrated Lime, shall conform to Type S or Type SAofSpecification C 207.4.1.8 Latex and Powder Polymer Modifiers, shall conformto Specification C 1438.NOTE 1Type II latex polymers should not be used in applications thatmay be more than superficially wet in service.4.1.9 Masonry Cement, s

24、hall conform to Specification C91.4.1.10 Mortar Cement, shall conform to SpecificationC 1329.4.1.11 Portland Cement, shall conform to Type I, IA, II,IIA, III or IIIA of Specification C 150.4.1.12 Silica Fume, shall conform to Specification C 1240.5. Preparation of Aggregate5.1 All aggregates shall b

25、e dried, without disintegration, toa moisture content of less than 0.1 mass %, computed onmaterial dried substantially to constant mass % at 105 to 110C 221 to 230 F.6. Proportioning6.1 The proportions of cementitious material and aggregateshall be such that the strength requirements will be met whe

26、nan amount of mixing water is used that produces for concretethe slump specified in 12.2 and for mortar the flow specified in14.2.7. Physical Properties7.1 Packaged, dry, combined materials for concrete, highstrength mortar, and mortar for use with unit masonry shallconform to the respective physica

27、l requirements as given inTable 1 for the material specified when the prescribed amountof 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 2

28、500 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 5000Mortar for unit masonry:Type MShall comply with property requirements ofSpecification C 270BType SType NALightweight concrete using normal we

29、ight sand may contain some portion of lightweight fines.BThe performance requirements for 28-day compressive strength, water retention, and air content are those for mortars made from masonry cement unless otherwisespecified. Manufacturers wishing to comply with the air content requirements for mort

30、ar-cement mortar or cement-lime mortar must specify the ingredients used and complywith the applicable portions of Specification C 270.C 387/C 387M 06a28. Packaging and Package Marking8.1 All packages shall be identified as conforming to Speci-fication C 387, and as to kind and type of material list

31、ed inTable 1 and the net mass in each bag printed thereon.8.2 The yield in liters (or cubic feet), and the amount ofwater recommended for mixing shall be marked on thepackage.NOTE 2The amount of water recommended should be the amountrequired to produce a slump of 50 to 75 mm 2 to 3 in.8.3 Container

32、ConstructionThe material from which thecontainers are made shall have water vapor transmission notgreater than 100 g/m2in 24 h as determined in accordance withProcedure B of Test Methods E 96. The strength of thecontainer shall be adequate for the mass of concrete or mortarit is intended to contain.

33、9. Rejection9.1 The purchaser has the right to reject material that fails toconform to the requirements of this specification. Rejectionshall be reported to the Producer or supplier promptly and inwriting.SAMPLING AND TESTING10. Accuracy of Measurement10.1 Use scales conforming to the applicable sec

34、tions ofHandbook 44.3New and reconditioned scales shall be accurateto 60.1 % of the total capacity of the scale. When scales havebeen in use, they shall be accurate to 60.4 % of the totalcapacity of the scale.10.2 Record the mass of concrete in kilograms (pounds) toa minimum accuracy of 0.05 kg 0.1

35、lb. Record the mass ofmortar in grams to an accuracy of within1gor0.1%,whichever is greater.11. Sampling Concrete11.1 Use a sufficient quantity of whole packages to conductall testing from a single batch.12. Mixing and Testing Concrete12.1 Determine the net mass of concrete in the package (orpackage

36、s), then empty into a clean, watertight container.12.2 Mix the concrete, determine the properties of the freshconcrete, and mold and cure the specimens in accordance withthe applicable provisions of Practice C 192/C 192M, or modi-fications of them as outlined herein. Test the strength of theconcrete

37、 in accordance with Test Method C 39/C 39M.12.3 Mix the entire sample of the combined, dry material forconcrete 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.12.4 Use a

38、watertight, clean metal container for handmixing, using either a blunted bricklayers trowel, handsprotected by 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 i

39、n appearance and has the desired slump.If prolonged mixing is required because of the addition ofmixing water in increments while adjusting the slump, thebatch must be discarded and a new batch made withoutinterrupting the mixing to make trial slump tests.12.5 Place all materials in the mixer to be

40、used for machinemixing. A mixing period of 3 min followed by a 3-min rest,followed by 2-min final mixing is suggested, 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

41、Test MethodC 143/C 143M upon completion of the mixing. If the slumptest of the mixed batch shows that additional 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 m

42、m 2 to 3 in., discardthe batch.12.6 Discharge the mixed batch into a clean, watertightcontainer that has been predampened, 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)

43、in accordance with TestMethod C 138/C 138M. Return samples used for the slump andunit weight test to the container, then remix the batch by handand mold the specimens.12.7 Mold six cylinders from each batch, using threecylinders for test at 7 days and three at 28 days, except that inthe case of high

44、 early strength concrete, three cylinders shall betested at 3 days and three at 7 days. Compression testspecimens 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

45、 for a test as required in this section aremolded from a single batch and the sample taken in accordancewith 11.1. 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 te

46、st and no individual specimen shall have astrength less than 90 % of the required strength.12.8 The report of the tests of the concrete shall include thefollowing:12.8.1 Net mass of dry, combined material in the bag orbags determined by subtracting the mass of the empty bag orbags from the gross mas

47、s of the package.12.8.2 Amount of mixing water (W) calculated in terms ofkilograms (or pounds) per bag, based on mass of the bag.W5Wb/A!B3Specifications, Tolerances, and Other Technical Requirements of Weighing andMeasuring Devices, Handbook 44, National Bureau of Standards.C 387/C 387M 06a3Wb= mass

48、 of water added to batch,A = mass of dry material in batch, andB = printed mass of bag contents.12.8.3 Slump in millimetres (or inches) in accordance withTest Method C 143/C 143M.12.8.4 Density (D) in kilograms per cubic meter (or poundsper cubic foot) in accordance with Test Method C 138/C 138M.12.

49、8.5 Yield (Y) of concrete as determined by Test MethodC 138/C 138M in terms of liters (or cubic feet) per bag, basedon printed mass of bag contents.12.8.6 Air content, if required, shall be determined by oneof the following Test Methods: C 138/C 138M, C 173/C 173M,(suggested for lightweight concrete); or C 231. The methodused to determine the air content shall be reported.12.8.7 Compressive strength at the ages specified in Table 1;report the method of mixing the concrete. State the size of thecylinder used in the report.1