1、Designation: C901 10Standard 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 Department of Defense.1. Scope*1.1 This specification covers the structural design and qual-ity control of fa
3、brication 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 mathematicalconversio
4、ns 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 TileC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm Cube
5、Specimens)C140 Test Methods for Sampling and Testing ConcreteMasonry 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
6、Method for Sampling and Testing GroutC1180 Terminology of Mortar and Grout for Unit MasonryC1232 Terminology of MasonryC1314 Test Method for Compressive Strength of MasonryPrismsC1357 Test Methods for Evaluating Masonry BondStrengthC1717 Test Methods for Conducting Strength Tests ofMasonry Wall Pane
7、lsE518 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 identified inTerminologies C118
8、0 and C1232.4. 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 provisions of the applicablelo
9、cal 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 design loads shall beof th
10、e 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 each panel, between pan-e
11、ls, 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 capacity of four times thed
12、ead 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 nominal1This specification is under the jurisdiction o
13、f ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.05 on Masonry Assemblies.Current edition approved Dec. 15, 2010. Published December 2010. Originallyapproved in 1979. Last previous edition approved in 2009 as C901 09. DOI:10.1520/C0901-10.2For ref
14、erenced 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 from The Masonry Society, 3970 Broadway, Suite 201-D, Boul
15、der,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.individual masonry unit heights and lengths. The nominalthickness of pan
16、els 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 cu
17、stom 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 t
18、he 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 3
19、0 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 ha
20、ve 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-pea
21、rance 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 t
22、o 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.7
23、.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 of
25、 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
26、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 grout formu-lation, or both, has been established, sample a representativebatch of each, if both are used
27、, 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 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
28、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
29、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 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 sp
31、ecified 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, an
32、d 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 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 otherwiseC901 102damage the panels. Structurally damaged panels shall bereplaced, except that repai
36、r 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 d
37、imensional 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 09)that may impact the use of this standard. (Approved Dec. 15,
38、 2010.)(1) Test Method C1717 was added to Section 2 and replacedE72 where cited in Note 1.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 determination
39、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 or withdrawn
40、. 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 that your com
41、ments 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 reprints (single or
42、 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C901 103
