ASTM C901-2018 Standard Specification for Prefabricated Masonry Panels.pdf

1、Designation: C901 18Standard Specification forPrefabricated Masonry Panels1This standard is issued under the fixed designation C901; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses

2、 indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers the structural design and qual-ity control

3、of fabrication for load-bearing and non-load-bearingprefabricated masonry panels. Methods of prefabrication, fielderection, and jointing are not covered in this specification.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconv

4、ersions to SI units that are provided for information onlyand are not considered standard.1.3 The text of this standard references notes and footnotesthat provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the stan

5、dard.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarrie

6、rs to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C140 Test Methods for Sampling and Testing Conc

7、reteMasonry Units and Related UnitsC270 Specification for Mortar for Unit MasonryC476 Specification for Grout for MasonryC780 Test Method for Preconstruction and ConstructionEvaluation of Mortars for Plain and Reinforced UnitMasonryC1019 Test Method for Sampling and Testing GroutC1180 Terminology of

8、 Mortar and Grout for Unit MasonryC1232 Terminology for MasonryC1314 Test Method for Compressive Strength of MasonryPrismsC1357 Test Methods for Evaluating Masonry Bond Strength(Withdrawn 2016)3C1717 Test Methods for Conducting Strength Tests of Ma-sonry Wall PanelsE518 Test Methods for Flexural Bon

9、d Strength of Masonry2.2 Other Standards:TMS 402 Building Code Requirements for Masonry Struc-tures4TMS 602 Specification for Masonry Structures43. Terminology3.1 The terms used in this specification are identified inTerminologies C1180 and C1232.4. Materials and Manufacture4.1 MasonryMasonry units,

10、 mortar, grout, reinforcement,anchors, ties, and accessories shall conform to TMS 602.5. Structural Design5.1 GeneralStructural design of panels shall be performedin accordance with the provisions of the applicable localbuilding code and the requirements of TMS 402. Structuraldesign of panels shall

11、consider all loading and restraintconditions from initial fabrication to in-service conditions inthe completed structure, including storage, transportation, anderection. The design loads shall be of the type and magnituderequired by the applicable building code. Panels and connec-tions required to r

12、esist wind, seismic, or other dynamic loadsshall be designed to resist the required positive and negativeforces in all directions. The joints between dissimilar materials1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility

13、of SubcommitteeC15.05 on Masonry Assemblies.Current edition approved Sept. 1, 2018. Published September 2018. Originallyapproved in 1979. Last previous edition approved in 2010 as C901 10. DOI:10.1520/C0901-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custo

14、mer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from The Masonry Society, 105 South Sunset Street, Suite

15、 Q,Longmont, CO 80501-6172, http:/www.masonrysociety.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with inte

16、rnationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1within each panel, between panels, and between

17、panels andtheir structural supports shall be designed to accommodatedifferential movement and deflections of each material, panel,and adjacent building elements.5.2 Lifting DevicesLifting devices and their connectionsto the panels shall have an ultimate capacity of four times thedead weight of the a

18、ppropriate portion of the panel. Inclinationof the lifting forces shall be considered.6. Dimensions and Permissible Variations6.1 Standard DimensionsThe standard nominal widthsand heights of the panels shall be in multiples of nominalindividual masonry unit heights and lengths. The nominalthickness

19、of panels shall be the sum of the nominal thicknessesof the masonry units in the panels plus the nominal thicknessof cavities, if any. The specified dimensions may be less thanthe required nominal dimensions by the thickness of onemortar joint but not by more than12 in. (13 mm).6.2 Custom Dimensions

20、For custom installations, all di-mensions of panels shall be as shown on the drawings or asspecified.6.3 Thickness of panelsThe specified thickness of thepanels shall be as required for adequate strength, fireresistance, or other design criteria for the type of constructionand occupancy as required

21、by the applicable building code.6.4 Dimensional TolerancesBased on actual dimensions,a prefabricated masonry wall panel shall not vary from thespecified face dimensions by more than the following:10 ft (3.05 m) or under18 in. (3.2 mm)10 to 20 ft (3.5 to 7.1 m)+18 in. (3.2 mm) or 316 in. (4.8 mm)20 t

22、o 30 ft (6.096 to 9.144 m)+18 in. (3.2 mm) or 14 in. (6.4 mm)For each additional 10 ft (3.5 m)116 in. (1.6 mm)The maximum permissible variation from the specifiedthickness of prefabricated masonry panels shall be not greaterthan 18 in. (3.2 mm) or +14 in. (6.4 mm). Prefabricatedmasonry panels shall

23、have maximum out-of-square differentialdimensions (difference in length of the two diagonal facemeasurements) not greater than18 in./6 ft (3.2 mm/1.83 m) noran absolute maximum of greater than14 in. (6.4 mm).7. Workmanship, Finish, and Appearance7.1 GeneralFor facing panels, the workmanship and ap-p

24、earance shall be equal to or better than that of the approvedsample. The method of fabrication shall be such as to preventmisalignment of individual units, and the joints shall be evenand aligned properly within each panel and with adjacentpanels. Mortar, grout, or other stains on all panel surfaces

25、 to beleft exposed shall be removed before the panel is delivered tothe job site. Panels shall be protected from further stainingduring storage, shipment, and erection.7.2 WarpageThe faces of the panels shall not be out ofplane more than18 in. (3.2 mm) for each 6 ft (1.83 m) of eitherheight or width

26、.7.3 Location of Inserts and FittingsThe location ofanchors, inserts, and lifting and connection devices shall notvary from center-line location shown on the plans or shopdrawings, or both, by more than38 in. (9.5 mm).8. Quality Assurance8.1 Preparation of Materials:8.1.1 BrickTest the initial rate

27、of absorption (suction) ofthe brick in accordance with Test Methods C67, and whenrequired, adjust the initial rate of absorption by wetting theunits prior to pouring grout or spreading mortar.8.1.2 Mortar and GroutProportion the mortar and groutby weight or volume on the basis of the unit weights of

28、 theingredients as given in Specifications C270 or C476.Ifahigh-bond mortar admixture is used, proportion and mix themortar and grout in accordance with the admixture manufac-turers specifications.8.2 Quality Control Tests:8.2.1 Subject a sample of at least ten specimens of masonryunits for each 50

29、000 units of a given type used in thefabrication of panels to the compressive strength and absorp-tion tests in accordance with Test Methods C67 or C140.8.2.2 Mortar and GroutAfter the mortar or groutformulation, or both, has been established, sample a represen-tative batch of each, if both are used

30、, and mold not less thantwelve standard 2-in. (50-mm) cube specimens of each, if bothare used, following the procedures contained in the applicablesections of Test Method C109/C109M and Test MethodsC1019, respectively.8.2.2.1 Test three specimens, each at 1, 3, 7, and 28 days,and determine the relat

31、ionship between the early age strengthsand the 28-day strength for both mortar and grout, if both areused. Repeat this procedure whenever the mortar or groutformulation is changed.8.2.2.2 Thereafter, during production, sample at least onerepresentative batch of mortar or grout, or both, each day, an

32、dmold three cube specimens of each, if both are used, for testingat ages of 1, 3, or 7 days. Follow the applicable portions of TestMethod C780 and Test Methods C1019, respectively.8.2.3 Panel AssemblageTest a sample of specimens, thatis, unreinforced assemblages representative of the full-sizepanel,

33、 for compressive and flexural strength. Test one sampleof three compression specimens for every 5000 ft2of panelproduction or every story height. Test one sample of threeflexural specimens for each days work on panels.8.2.3.1 Specimen configuration for compressive and flex-ural tests shall be as spe

34、cified in the appropriate ASTMstandard. Testing shall be conducted in accordance with TestMethods C1314, E518,orC1357.NOTE 1Good correlation has not been established between the resultsof flexural prism tests of masonry and those of full-size wall sectionsunder a variety of loading, slenderness, and

35、 bending conditions. Qualitycontrol flexural tests of prisms should be supplemented initially withuniform transverse load tests of full-size wall panels in accordance withTest Methods C1717.9. Identification and Marking9.1 Each prefabricated member shall be marked to indicateits location in the stru

36、cture, its top surface, and the date offabrication. Identification marks shall correspond to thoseshown on the placing drawings.C901 18210. Shop Drawings10.1 Shop drawings shall consist of fabrication drawingsand placement drawings that may be separate or combined intoone set of shop drawings.10.2 F

37、abrication drawings shall show all details and loca-tion of reinforcement, inserts, anchors, bearing seats, liftinginserts, coursing, size and shape of openings, and panel sizeand shape.10.3 Placing drawings shall show panel identification, panellocation, reference dimensions, panel dimensions, dime

38、nsionof joints between panels, and connection details.11. Handling, Storage, and Transportation11.1 During manufacture, curing, storage, andtransportation, care shall be taken not to overstress, warp, orotherwise damage the panels. Structurally damaged panelsshall be replaced, except that repair of

39、structurally damagedpanels instead of replacement is allowed, at the discretion ofthe architect or engineer. Non-structural damage shall berepaired or replaced, utilizing the manufacturers standardprocedures. The repair shall be to the satisfaction of thearchitect or engineer.12. Keywords12.1 dimens

40、ional tolerances; dimensions; masonry units;prefabricated masonry panels; quality control; structural designSUMMARY OF CHANGESCommittee C15 has identified the location of selected changes to this standard since the last issue (C901 10)that may impact the use of this standard. (September 1, 2018)(1)

41、Added 1.3 regarding notes and footnotes being non-mandatory.(2) Updated references to TMS 402 and 602.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that de

42、termination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved

43、or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel t

44、hat your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprint

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