1、Designation: C 901 09Standard Specification forPrefabricated Masonry Panels1This standard is issued under the fixed designation C 901; 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 parenthes
2、es 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 Department of Defense.1. Scope*1.1 This specification covers the structural design and qual-ity control of
3、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 mathematicalconvers
4、ions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for Sampling and Testing Brick andStructural Clay TileC 109/C 109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm
5、CubeSpecimens)C 140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC 270 Specification for Mortar for Unit MasonryC 476 Specification for Grout for MasonryC 780 Test Method for Preconstruction and ConstructionEvaluation of Mortars for Plain and Reinforced UnitMasonryC 1
6、019 Test Method for Sampling and Testing GroutC 1180 Terminology of Mortar and Grout for Unit MasonryC 1232 Terminology of MasonryC 1314 Test Method for Compressive Strength of MasonryPrismsC 1357 Test Methods for Evaluating Masonry BondStrengthE72 Test Methods of Conducting Strength Tests of Panels
7、for Building ConstructionE 518 Test Methods for Flexural Bond Strength of Masonry2.2 Other Standards:TMS 402/ACI 530/ASCE 5 Building Code Requirementsfor Masonry Structures3TMS 602/ACI 530.1/ASCE 6 Specification for MasonryStructures33. Terminology3.1 The terms used in this specification are identif
8、ied inTerminologies C 1180 and C 1232.4. Materials and Manufacture4.1 MasonryMasonry units, mortar, grout, reinforcement,anchors, ties, and accessories shall conform to TMS 602/ACI 530.1/ASCE 6.5. Structural Design5.1 GeneralStructural design of panels shall be per-formed in accordance with the prov
9、isions of the applicablelocal building code and the requirements of TMS 402/ACI 530/ASCE 5. Structural design of panels shall consider allloading and restraint conditions from initial fabrication toin-service conditions in the completed structure, includingstorage, transportation, and erection. The
10、design loads shall beof the type and magnitude required by the applicable buildingcode. Panels and connections required to resist wind, seismic,or other dynamic loads shall be designed to resist the requiredpositive and negative forces in all directions. The jointsbetween dissimilar materials within
11、 each panel, between pan-els, and between panels and their structural supports shall bedesigned to accommodate differential movement and deflec-tions of each material, panel, and adjacent building elements.5.2 Lifting DevicesLifting devices and their connectionsto the panels shall have an ultimate c
12、apacity of four times thedead weight of the appropriate 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 un
13、it heights and lengths. The nominal1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.05 on Masonry Assemblies.Current edition approved June 15, 2009. Published June 2009. Originallyapproved in 1979. La
14、st previous edition approved in 2001 as C 901 01.2For 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.3Available f
15、rom The Masonry Society, 3970 Broadway, Suite 201-D, Boulder,CO 803041135, http:/www.masonrysociety.org.1*A Summary of Changes 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.thickness of pa
16、nels 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 DimensionsFor c
17、ustom 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, fire resis-tance, or other design criteria for the type of construction andoccupancy as required by
18、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 under618 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 to
19、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)6116 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 h
20、ave 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-pe
21、arance 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
22、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.
23、7.3 Location of Inserts and FittingsThe location of an-chors, inserts, and lifting and connection devices shall not varyfrom center-line location shown on the plans or shop drawings,or both, by more than38 in. (9.5 mm).8. Quality Assurance8.1 Preparation of Materials:8.1.1 BrickTest the initial rate
24、 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 o
25、f theingredients as given in Specifications C 270 or C 476.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
26、50 000 units of a given type used in thefabrication of panels to the compressive strength and absorp-tion tests in accordance with Test Methods C67orC140.8.2.2 Mortar and GroutAfter the mortar or grout formu-lation, or both, has been established, sample a representativebatch of each, if both are use
27、d, and mold not less than twelvestandard 2-in. (50-mm) cube specimens of each, if both areused, following the procedures contained in the applicablesections of Test Method C 109 and Test Methods C 1019,respectively.8.2.2.1 Test three specimens, each at 1, 3, 7, and 28 days,and determine the relation
28、ship 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, andmo
29、ld three cube specimens of each, if both are used, for testingat ages of 1, 3, or 7 days. Follow the applicable portions of TestMethod C 780 and Test Methods C 1019, respectively.8.2.3 Panel Assemblage Test a sample of specimens, thatis, unreinforced assemblages representative of the full-sizepanel,
30、 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
31、cified in the appropriate ASTMstandard. Testing shall be conducted in accordance with TestMethods C 1314, E 518,orC 1357.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,
32、and bending conditions. Qualitycontrol flexural tests of prisms should be supplemented initially withuniform transverse load tests of full-size wall panels in accordance withTest Methods E72.9. Identification and Marking9.1 Each prefabricated member shall be marked to indicateits location in the str
33、ucture, its top surface, and the date offabrication. Identification marks shall correspond to thoseshown on the placing drawings.10. 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 Fabricat
34、ion 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,panel location, reference dimensions, panel dimensions, di-mension
35、of joints between panels, and connection details.11. Handling, Storage, and Transportation11.1 During manufacture, curing, storage, and transporta-tion, care shall be taken not to overstress, warp, or otherwiseC901092damage the panels. Structurally damaged panels shall bereplaced, except that repair
36、 of structurally damaged panelsinstead of replacement is allowed, at the discretion of thearchitect or engineer. Non-structural damage shall be repairedor replaced, utilizing the manufacturers standard procedures.The repair shall be to the satisfaction of the architect orengineer.12. Keywords12.1 di
37、mensional 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 (C 901 01)that may impact the use of this standard. (Approved June 15,
38、 2009.)(1) Terminology standards C 1180 and C 1232 were added toSection 2 and to the new Terminology section, Section 3.(2) Individual material ASTM standards in Sections 2 and 4were replaced with reference to TMS 602/ACI 530.1/ASCE 6.(3) Design in 5.1 was changed to that inTMS 402/ACI 530/ASCE 5.AS
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40、ntirely 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 or withdrawn. Your comments are invited either for revision of this standard or for additional standards
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42、 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 reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C901093
