ASTM C1329 C1329M-2012 Standard Specification for Mortar Cement《砂浆水泥标准规格》.pdf

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1、Designation:C132905 Designation: C1329/C1329M 12Standard 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

2、number in parentheses 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 cement for use where mortar for masonry is required.1.2The values stated in SI units ar

3、e to be regarded as the standard. Values in SI units shall be obtained by measurement in SIunits or by appropriate conversion, using the Rules for Conversion and Rounding given in1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. The values s

4、tatedin each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with the standard. Values in SI units shall be obtained by measurement inSI units or by appropriate conversion, using

5、the Rules for Conversion and Rounding given in Standard IEEE/ASTM SI 10, ofmeasurements made in other units. , of measurements made in other units. Values are stated in only SI units when inch-pound unitsare not used in practice.1.3 The text of this standard refers to notes and footnotes which provi

6、de explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be considered as requirements of the standard.1.4 The following safety hazards caveat pertains only to Section 16. This standard does not purport to address all of the safetyconcerns, if any, associat

7、ed with its use. It is the responsibility of the user of this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limitations prior to use. (WarningFresh hydraulic cementitious mixturesare caustic and may cause chemical burns to skin and tissue

8、upon prolonged exposure.2)2. Referenced Documents2.1 ASTM Standards:3C91 Specification for Masonry CementC109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C151 Test Method for Autoclave Expansion of Hydraulic CementC183 Practice for Samp

9、ling and the Amount of Testing of Hydraulic CementC185 Test Method for Air Content of Hydraulic Cement MortarC187 Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement PasteC188 Test Method for Density of Hydraulic CementC219 Terminology Relating to Hydraulic CementC266

10、 Test Method for Time of Setting of Hydraulic-Cement Paste by Gillmore NeedlesC305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic ConsistencyC430 Test Method for Fineness of Hydraulic Cement by the 45-m (No. 325) SieveC511 Specification for Mixing Rooms, Moist Cabin

11、ets, Moist Rooms, and Water Storage Tanks Used in the Testing ofHydraulic Cements and ConcretesC778 Specification for SandC1357 Test Methods for Evaluating Masonry Bond StrengthC1506 Test Method for Water Retention of Hydraulic Cement-Based Mortars and PlastersIEEE/ASTM SI 10 Standard for Use of the

12、 International System of Units (SI): The Modern Metric System1This specification is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.11 on Masonry Cement.Current edition approved Sept. 15, 2005. Published October 2005. Originally approved in

13、 1996. Last previous edition approved in 2004 as C132904. DOI:10.1520/C1329-05.Current edition approved April 1, 2012. Published May 2012. Originally approved in 1996. Last previous edition approved in 2005 as C1329 05. DOI:10.1520/C1329_C1329M-12.2Annual Book of ASTM Standards, Vol 04.01. See the s

14、ection on Safety Precautions in the Manual of Cement Testing.3For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM websit

15、e.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior

16、editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3. Terminology3.1 DefinitionsTerms used in th

17、is specification are defined in Terminology C219.3.2 Definition of Term Specific to This Standard:3.2.1 mortar cementa hydraulic cement, primarily used in masonry construction, consisting of a mixture of portland orblended hydraulic cement and plasticizing materials (such as limestone or hydrated or

18、 hydraulic lime), together with othermaterials introduced to enhance one or more properties such as setting time, workability, water retention, and durability.3.2.1.1 DiscussionMortar cement is similar to masonry cement in use and function (See Specification C91). However, thisspecification requires

19、 lower air contents and includes a flexural bond strength requirement.4. 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 requirements prescribed in

20、 Table 1 for its classification.6. Sampling6.1 At the option of the purchaser, the cement shall be sampled and tested to verify compliance with this specification, samplingand testing shall be performed in accordance with Practice C183.6.2 Practice C183 is not designed for manufacturing quality cont

21、rol and is not required for manufacturers certification.7. Temperature and Humidity7.1 The temperature and relative humidity of the air in the vicinity of the mixing slab and dry materials, molds, base plates, andmixing bowl shall conform to the requirements of Test Method C109/C109M.7.2 The moist c

22、abinet or moist room shall conform to the requirements of Specification C511.8. Fineness8.1 Determine the residue on the 45-m (No. 325) sieve in accordance with Test Method C430.9. Normal Consistency9.1 Determine the normal consistency by the Vicat apparatus in accordance with Test Method C187.10. A

23、utoclave Expansion10.1 Determine the autoclave expansion in accordance with Test Method C151. After molding, store the bars in the moistcabinet or room for 48 h 6 30 min before removal from the molds for measurement and testing in the autoclave. Calculate thedifference in length of the test specimen

24、 before and after autoclaving to the nearest 0.01 % of the effective gage length, and reportas the autoclave expansion of the mortar cement.11. Time of Setting11.1 Determine the time of setting by the Gillmore needle method in accordance with Test Method C266.TABLE 1 Physical RequirementsMortar Ceme

25、nt 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, not less than 120 90 90Initial set, minutes, not more than 1000 1000 1000Compressive strength (average of three cubes):The compressive

26、strength of mortar cubes, composed of 1 part cement and 3 parts blended sand (half gradedstandard sand and half standard 2030 sand) by volume, prepared and tested in accordance with thisspecification, shall be equal to or higher than the values specified for the ages indicated below:7 days, MPa (psi

27、) 3.5 (500) 9.0 (1300) 12.4 (1800)7 days, MPa psi 3.5 500 9.0 1300 12.4 180028 days, MPa (psi) 6.2 (900) 14.5 (2100) 20.0 (2900)28 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 (115)28 days, min, MPa psi 0.5 70 0.7 100 0.8 115Air conte

28、nt of mortar:Min, volume % 888Max, volume % 17 15 15Water retention value, min, %, of original flow 70 70 70C1329/C1329M 12212. Density12.1 Determine the density of the mortar cement in accordance with Test Method C188, using kerosine as the liquid. Use thedensity so determined in the calculation of

29、 the air content of the mortars.13. Blended Sand13.1 The sand shall be a blend of equal parts by weight of graded standard sand and 2030 standard sand conforming toSpecification C778.14. Preparation of Mortar14.1 Proportions for MortarMortar for air entrainment, compressive strength, and water reten

30、tion tests shall be proportionedto contain 1620 g of sand and a mass of cement, in grams, as indicated in Table 2. The sand shall consist of 810 g of graded standardsand and 810 g of 20-30 standard sand (Note 1).sand. The quantity of water, measured in millilitres, shall be such as to producea flow

31、of 110 6 5 as determined by Test Method C109/C109M.NOTE1Historically, field-mixed mortar has been proportioned by volume measured in increments or fractions of 1 ft3. The comparable whole SI-unitvolume to 1 ft3is 28 L. The specified mortar proportions approximate the 1:3 nominal proportions by volum

32、e, commonly specified for construction, onthe basis of the following assumed mass and volume relationships:The mass of dry sand in 28 L of loose damp sand is 36 kg.28 L of Type N mortar cement has a mass of 32 kg.28 L of Type S mortar cement has a mass of 34 kg.28 L of Type M mortar cement has a mas

33、s of 36 kg.For example, the amount of cement needed to provide a 1:3 volume proportion of cement to sand using a Type N mortar cement is calculated as follows:A516203C/B!51620332/108!5480C1329-05_1 (1)where:A = number of grams of cement to be used in the mortar with 1620 g of sand,B = 3 3 36 = 108 k

34、g, the mass of dry sand in 84 (or 3 3 28) L of loose damp sand, andC = mass of Type N mortar cement per 28 L.14.2 Mixing of MortarsMix the mortar in accordance with Practice C305.14.3 Determination of FlowDetermine the flow in accordance with Test Method C109/C109M.15. Air Entrainment15.1 ProcedureI

35、f the mortar has the correct flow, use a separate portion of the mortar for the determination of entrained air.Determine the mass of 400 mL of mortar in accordance with Test Method C185.15.2 CalculationCalculate the air content of the mortar, and report it to the nearest 1 % as follows:D 5 W11 W21 V

36、w!/W1/S1! 1 W2/S2!1 Vw# A5 100 2 Wm/4D! (1)C1329_C1329M-12_1where: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 percent of entrained air, andWm= mass of 400 mL of

37、 mortar, g.16. Compressive Strength16.1 Test Specimens:16.1.1 MoldingImmediately after determining the flow and mass of 400 mL of mortar, return all of the mortar to the mixingbowl and remix for 15 s at the medium speed. Then mold the test specimens in accordance with Test Method C109/C109M, exceptT

38、ABLE 2 Cement in Laboratory Batch of MortarMortar Cement Type Mass of Cement, gN 480S 510M 540C1329/C1329M 123that the elapsed time for mixing mortar, determining flow, determining air entrainment, and starting the molding of cubes shall bewithin 8 min.16.1.2 StorageImmediately after molding, store

39、all test specimens in the molds on plane plates in a moist cabinet or moistroom for 48 to 52 h in such a manner that the upper surfaces shall be exposed to the moist air. Then remove the cubes from themolds, and place them in the moist cabinet or moist room for 5 days in such a manner as to allow fr

40、ee circulation of air aroundat least five faces of the specimens. At the age of 7 days, immerse the cubes for the 28-day tests in saturated lime water in storagetanks of noncorrodible materials.16.2 Procedure:16.2.1 Test the cube specimens immediately after their removal from the moist cabinet or mo

41、ist room for 7-day specimens, andimmediately after their removal from storage water for all other specimens. If more than one specimen at a time is removed fromthe moist cabinet or moist room for 7-day tests, cover these cubes with a damp cloth until the time of testing.16.2.2 The remainder of the t

42、esting procedure shall conform to Test Method C109/C109M.17. Water Retention17.1 Water retention shall be determined in accordance with the procedures in Test Method C1506.18. Flexural Bond Strength18.1 Flexural bond strength shall be determined in accordance with the test method for laboratory prep

43、ared specimens of TestMethods C1357, except sand shall be a blend of equal mass of graded and standard 20-30 sand conforming to Specification C778and mortar shall be proportioned to contain mass of cement in kg equal to 0.20 times the net mass in kg printed on the bag and22.0 kg of sand. The flexura

44、l bond strength of mortar cement shall be determined as the average gross area flexural bond strengthof 30 joints minus 1.28 times the standard deviation of the sample.19. Storage19.1 The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of eac

45、hshipment, and in a suitable weathertight building that will protect the cement from dampness and minimize warehouse set.20. Inspection20.1 Adequate facilities shall be provided to the purchaser for the necessary inspection and sampling.20.2 All packages shall be in good condition at the time of ins

46、pection.21. Rejection21.1 At the option of the purchaser, the cement shall be rejected if it fails to meet any of the requirements of this specification.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 ent

47、ire shipment shall be rejected if the average mass of packages in any shipment, as shown by weighing 50packages taken at random, is less than that marked on the packages.21.3 At the option of the purchaser, cement remaining in storage prior to shipment for a period greater than six months aftertesti

48、ng shall be retested and, at the option of the purchaser, shall be rejected if it fails to meet any of the requirements of thisspecification.22. Manufacturers Certification22.1 Upon request of the purchaser in the contract or order, a manufacturers report shall be furnished at the time of shipmentst

49、ating the results of the tests made on samples of the material taken during production or transfer and certifying that the applicablerequirements of this specification have been met.23. Packaging and Package Marking23.1When mortar cement is delivered in packages, the brand, name of the manufacturer, type of mortar cement, and net massof the package in kilograms (Note 2) shall be indicated plainly thereon. Similar information shall be provided in the shippingdocuments accompanying the shipment of mortar cement in bulk.NOTE2To