ASTM C1329 C1329M-2015 Standard Specification for Mortar Cement《灰浆水泥的标准规格》.pdf

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1、Designation: C1329/C1329M 15Standard Specification forMortar Cement1This standard is issued under the fixed designation C1329/C1329M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parenthese

2、s indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers three types of mortar cementfor use where mortar for masonry is required.1.2 UnitsThe values stated in either SI units or inch-po

3、und units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard. Values in SI units shall beobtained

4、 by measurement in SI units or by appropriateconversion, using the Rules for Conversion and Roundinggiven in Standard IEEE/ASTM SI 10, of measurements madein other units. Values are stated in only SI units wheninch-pound units are not used in practice.1.3 The text of this standard refers to notes an

5、d footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.4 The following safety hazards caveat pertains only toSection 16. This standard does not purport to address all of thesafety concer

6、ns, 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. (WarningFreshhydraulic cementitious mixtures are caustic and may causechemical burn

7、s to skin and tissue upon prolonged exposure.2)2. Referenced Documents2.1 ASTM Standards:3C91 Specification for Masonry CementC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C151 Test Method for Autoclave Expansion of HydraulicCementC183

8、 Practice for Sampling and the Amount of Testing ofHydraulic CementC185 Test Method for Air Content of Hydraulic CementMortarC187 Test Method for Amount of Water Required for Nor-mal Consistency of Hydraulic Cement PasteC188 Test Method for Density of Hydraulic CementC219 Terminology Relating to Hyd

9、raulic CementC266 Test Method for Time of Setting of Hydraulic-CementPaste by Gillmore NeedlesC305 Practice for Mechanical Mixing of Hydraulic CementPastes and Mortars of Plastic ConsistencyC430 Test Method for Fineness of Hydraulic Cement by the45-m (No. 325) SieveC511 Specification for Mixing Room

10、s, Moist Cabinets,Moist Rooms, and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC778 Specification for SandC1357 Test Methods for Evaluating Masonry Bond StrengthC1506 Test Method for Water Retention of HydraulicCement-Based Mortars and PlastersIEEE/ASTM SI 10 Standard fo

11、r Use of the InternationalSystem of Units (SI): The Modern Metric System3. Terminology3.1 DefinitionsTerms used in this specification are definedin Terminology C219.3.2 Definitions of Terms Specific to This Standard:3.2.1 mortar cementa hydraulic cement, primarily used inmasonry construction, consis

12、ting of a mixture of portland orblended hydraulic cement and plasticizing materials (such aslimestone or hydrated or hydraulic lime), together with othermaterials introduced to enhance one or more properties such assetting time, workability, water retention, and durability.3.2.1.1 DiscussionMortar c

13、ement is similar to masonrycement in use and function (see Specification C91). However,this specification requires lower air contents and includes aflexural bond strength requirement.1This specification is under the jurisdiction of ASTM Committee C01 onCement and is the direct responsibility of Subc

14、ommittee C01.11 on MasonryCement.Current edition approved June 1, 2015. Published July 2015. Originally approvedin 1996. Last previous edition approved in 2012 as C1329/C1329M 12. DOI:10.1520/C1329_C1329M-15.2Annual Book of ASTM Standards, Vol 04.01. See the section on SafetyPrecautions in the Manua

15、l of Cement Testing.3For 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.Copyright ASTM International, 100 Barr Ha

16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Classification4.1 Mortar cements are classified as Type N, S, or M,according to the physical requirements prescribed in Table 1.5. Physical Properties5.1 Mortar cement shall conform to the applicable require-ments prescribed

17、 in Table 1 for its classification.6. Sampling6.1 At the option of the purchaser, the cement shall besampled and tested to verify compliance with this specification,sampling and testing shall be performed in accordance withPractice C183.6.2 Practice C183 is not designed for manufacturing qualitycont

18、rol and is not required for manufacturers certification.7. Temperature and Humidity7.1 The temperature and relative humidity of the air in thevicinity of the mixing slab and dry materials, molds, baseplates, and mixing bowl shall conform to the requirements ofTest Method C109/C109M.7.2 The moist cab

19、inet or moist room shall conform to therequirements of Specification C511.8. Fineness8.1 Determine the residue on the 45 m (No. 325) sieve inaccordance with Test Method C430.9. Normal Consistency9.1 Determine the normal consistency by the Vicat appara-tus in accordance with Test Method C187.10. Auto

20、clave Expansion10.1 Determine the autoclave expansion in accordance withTest Method C151. After molding, store the bars in the moistcabinet or room for 48 h 6 30 min before removal from themolds for measurement and testing in the autoclave. Calculatethe difference in length of the test specimen befo

21、re and afterautoclaving to the nearest 0.01 % of the effective gauge length,and report as the autoclave expansion of the mortar cement.11. Time of Setting11.1 Determine the time of setting by the Gillmore needlemethod in accordance with Test Method C266.12. Density12.1 Determine the density of the m

22、ortar cement in accor-dance with Test Method C188, using kerosine as the liquid.Use the density so determined in the calculation of the aircontent of the mortars.13. Blended Sand13.1 The sand shall be a blend of equal parts by weight ofgraded standard sand and 20-30 standard sand conforming toSpecif

23、ication C778.14. Preparation of Mortar14.1 Proportions for MortarMortar for air entrainment,compressive strength, and water retention tests shall be pro-portioned to contain 1620 g of sand and a mass of cement, ingrams, as indicated in Table 2. The sand shall consist of 810 gof graded standard sand

24、and 810 g of 20-30 standard sand. Thequantity of water, measured in millilitres, shall be such as toproduce a flow of 110 6 5 as determined by Test MethodC109/C109M.14.2 Mixing of MortarsMix the mortar in accordance withPractice C305.14.3 Determination of FlowDetermine the flow in accor-dance with T

25、est Method C109/C109M.15. Air Entrainment15.1 ProcedureIf the mortar has the correct flow, use aseparate portion of the mortar for the determination of en-trained air. Determine the mass of 400 mL of mortar inaccordance with Test Method C185.15.2 CalculationCalculate the air content of the mortar,an

26、d report it to the nearest 1 % as follows:D 5 W11W21Vw!/W1/S1! 1 W2/S2! 1 Vw# (1)A 5 100 2 Wm/4D!TABLE 1 Physical RequirementsMortar Cement Type NSMFineness, residue on a 45 m (No. 325) sieve, max, % 24 24 24Autoclave expansion, max, % 1.0 1.0 1.0Time of setting, Gillmore method:Initial set, minutes

27、, not less than 120 90 90Initial set, minutes, not more than 1000 1000 1000Compressive strength (average of three cubes):The compressive strength of mortar cubes, composed of 1 part cement and 3 parts blended sand (half gradedstandard sand and half standard 20-30 sand) by volume, prepared and tested

28、 in accordance with thisspecification, shall be equal to or higher than the values specified for the ages indicated below:7 days, MPa psi 3.5 500 9.0 1300 12.4 180028 days, MPa psi 6.2 900 14.5 2100 20.0 2900Flexural bond strength28 days, min, MPa psi 0.5 70 0.7 100 0.8 115Air content of mortar:Min,

29、 volume % 888Max, volume % 21 19 19Water retention value, min, %, of original flow 70 70 70C1329/C1329M 152where:D = density of air-free mortar, g/cm3,W1= mass of cement, g,W2= mass of sand, g,Vw= mL-g of water used,S1= density of cement, g/cm3,S2= density of standard sand, 2.65 g/cm3,A = volume per

30、cent of entrained air, andWm= mass of 400 mL of mortar, g.16. Compressive Strength16.1 Test Specimens:16.1.1 MoldingImmediately after determining the flowand mass of 400 mL of mortar, return all of the mortar to themixing bowl and remix for 15 s at the medium speed. Thenmold the test specimens in ac

31、cordance with Test MethodC109/C109M, except that the elapsed time for mixing mortar,determining flow, determining air entrainment, and starting themolding of cubes shall be within 8 min.16.1.2 StorageImmediately after molding, store all testspecimens in the molds on plane plates in a moist cabinet o

32、rmoist room for 48 to 52 h in such a manner that the uppersurfaces shall be exposed to the moist air. Then remove thecubes from the molds, and place them in the moist cabinet ormoist room for five days in such a manner as to allow freecirculation of air around at least five faces of the specimens. A

33、tthe age of seven days, immerse the cubes for the 28-day testsin saturated lime water in storage tanks of noncorrodiblematerials.16.2 Procedure:16.2.1 Test the cube specimens immediately after theirremoval from the moist cabinet or moist room for seven-dayspecimens, and immediately after their remov

34、al from storagewater for all other specimens. If more than one specimen at atime is removed from the moist cabinet or moist room forseven-day tests, cover these cubes with a damp cloth until thetime of testing.16.2.2 The remainder of the testing procedure shall conformto Test Method C109/C109M.17. W

35、ater Retention17.1 Water retention shall be determined in accordance withthe procedures in Test Method C1506.18. Flexural Bond Strength18.1 Flexural bond strength shall be determined in accor-dance with the test method for laboratory prepared specimensof Test Methods C1357, except sand shall be a bl

36、end of equalmass of graded and standard 20-30 sand conforming toSpecification C778 and mortar shall be proportioned to containmass of cement in kg equal to 0.20 times the net mass in kgprinted on the bag and 22.0 kg of sand. The flexural bondstrength of mortar cement shall be determined as the avera

37、gegross area flexural bond strength of 30 joints minus 1.28 timesthe standard deviation of the sample.19. Storage19.1 The cement shall be stored in such a manner as topermit easy access for proper inspection and identification ofeach shipment, and in a suitable weathertight building that willprotect

38、 the cement from dampness and minimize warehouseset.20. Inspection20.1 Adequate facilities shall be provided to the purchaserfor the necessary inspection and sampling.20.2 All packages shall be in good condition at the time ofinspection.21. Rejection21.1 At the option of the purchaser, the cement sh

39、all berejected if it fails to meet any of the requirements of thisspecification.21.2 At the option of the purchaser, packages more than 2 %below the mass marked thereon shall be rejected. At the optionof the purchaser, the entire shipment shall be rejected if theaverage mass of packages in any shipm

40、ent, as shown byweighing 50 packages taken at random, is less than that markedon the packages.21.3 At the option of the purchaser, cement remaining instorage prior to shipment for a period greater than six monthsafter testing shall be retested and, at the option of thepurchaser, shall be rejected if

41、 it fails to meet any of therequirements of this specification.22. Manufacturers Certification22.1 Upon request of the purchaser in the contract or order,a manufacturers report shall be furnished at the time ofshipment stating the results of the tests made on samples of thematerial taken during prod

42、uction or transfer and certifying thatthe applicable requirements of this specification have been met.23. Packaging and Package Marking23.1 When mortar cement is delivered in packages, thebrand, name of the manufacturer, type of mortar cement, andnet mass of the package in kilograms shall be indicat

43、ed plainlythereon. Similar information shall be provided in the shippingdocuments accompanying the shipment of mortar cement inbulk.24. Keywords24.1 flexural bond strength; masonry; mortar; mortar ce-mentTABLE 2 Cement in Laboratory Batch of MortarMortar Cement Type Mass of Cement, gN 480S 510M 540C

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