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ASTM C11-2017a Standard Terminology Relating to Gypsum and Related Building Materials and Systems《石膏和相关建筑材料及系统相关标准术语》.pdf

1、Designation: C11 17C11 17aStandard Terminology Relating toGypsum and Related Building Materials and Systems1This standard is issued under the fixed designation C11; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last r

2、evision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This standard covers terminology relating to gypsum and related building materials and systems. The terms are genericallydefine

3、d. More specific and expanded definitions may appear in appropriate standards.1.2 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and

4、Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C22/C22M Specification for GypsumC28/C28M Specification for Gypsum PlastersC35 Specification for Inorganic Aggregates for Use in Gypsum PlasterC36/C36M Specifi

5、cation for Gypsum Wallboard (Withdrawn 2004)3C37/C37M Specification for Gypsum Lath (Withdrawn 2004)3C52 Specification for Gypsum Partition Tile Or Block (Withdrawn 1982)3C59/C59M Specification for Gypsum Casting Plaster and Gypsum Molding PlasterC61/C61M Specification for Gypsum Keenes CementC317/C

6、317M Specification for Gypsum ConcreteC318/C318M Specification for Gypsum FormboardC472 Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum ConcreteC473 Test Methods for Physical Testing of Gypsum Panel ProductsC475/C475M Specification for Joint Compound and Joint Tape for Finish

7、ing Gypsum BoardC843 Specification for Application of Gypsum Veneer PlasterC557 Specification for Adhesives for Fastening Gypsum Wallboard to Wood FramingC587 Specification for Gypsum Veneer PlasterC588/C588M Specification for Gypsum Base for Veneer Plasters (Withdrawn 2005)3C954 Specification for S

8、teel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studsfrom 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in ThicknessC1007 Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related AccessoriesC1396/C1396M Specification fo

9、r Gypsum BoardE84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of MaterialsE119 Test Methods for Fire Tests of Building Construction and MaterialsE337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of

10、 Wet- and Dry-Bulb Temperatures)3. Terminologyaccelerator, na material that reduces setting time.accessories, nproducts fabricated for the purpose of forming corners, edges, control joints, or decorative effects.1 This terminology is under the jurisdiction of ASTM Committee C11 on Gypsum and Related

11、 Building Materials and Systems and is the direct responsibility ofSubcommittee C11.91 on Terminology and Editorial.Current edition approved May 15, 2017Oct. 1, 2017. Published June 2017October 2017. Originally approved in 1916. Last previous edition approved in 20162017 asC11 16.C11 17. DOI: 10.152

12、0/C0011-17.10.1520/C0011-17A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book ofASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of thi

13、s historical standard is referenced on www.astm.org.This 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 accu

14、rately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor

15、 Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1adhesive, na substance capable of holding materials together by surface attachment.admixture, na material other than water, aggregates, hydraulic cementitious material, and fiber reinforcement that is used as aningredient to modify

16、 properties and is added to the batch before or during its mixture.aggregate, nan inert granular material which may be added to gypsum plasters. (C35)all purpose compound, na compound formulated and manufactured to serve as both a taping and a finishing compound.anhydrite, nthe mineral consisting pr

17、imarily of anhydrous calcium sulfate, CaSO4.arris (of an arch), nthe outside corner or angle formed by the meeting of a wall surface with the curved surface of an arch (seeFig. 1).base coat, nany or all layers of plaster in place prior to application of finish coats.DISCUSSIONThe first application i

18、s normally called a scratch coat and the second application is referred to as a brown coat.bedding coat, nthat coat of plaster to receive aggregate or other decorative material of any size, impinged or embedded into itssurface, before it sets.bond plaster, na calcined gypsum plaster specially formul

19、ated for application over rough monolithic concrete as a bonding coatfor a subsequent gypsum plaster layer. (C28/C28M)bridging, nin framing, sections of wood or metal pieces used between framing members to stiffen, give lateral support, andminimize rotation.brown coat, nthe second layer in three-coa

20、t plaster application.building construction joint, na designed division of a building that allows movement of all component parts of the building,in any plane, which may be caused by thermal, seismic, wind loading, or any other force. The construction of the separation isaccomplished by one of the f

21、ollowing methods: (1) manufactured devices suitable for this application, or (2) by field fabricationof suitable materials.calcined gypsum, na dry powder; primarily calcium sulfate hemihydrate, resulting from calcination of gypsum; cementitiousbase for production of most gypsum plasters: also called

22、 plaster of paris, sometimes called stucco.calcium sulfate, nthe chemical compound CaSO4.cementitious material, na material that, when mixed with water, with or without aggregate, provides the plasticity and thecohesive and adhesive properties necessary for placement, and the formation of a rigid ma

23、ss.check cracking (in joint systems), nshort, narrow cracks randomly oriented in the surface of the dried joint compound.coat, na layer of plaster applied in a single bined water, nthe water chemically held, as water of crystallization, by the calcium sulfate dihydrate or hemihydrate pressive streng

24、th, nthe maximum load sustained by a standard specimen of a material when subjected to a crushing force.FIG. 1 Arris (of an Arch)C11 17a2consistency, na property of a material determined by the complete flow force relation. (C557)consistency (normal), nthe number of millilitres of water per 100 g of

25、 gypsum plaster or gypsum concrete required to producea mortar or a slurry of specified fluidity. (C472)control (expansion-contraction) joint, na designed separation in the system materials that allows for movement caused byexpansion or contraction of the system. The construction of the separation i

26、s accomplished by one of the following methods:(1) manufactured devices suitable for this application, or (2) by field fabrication of suitable materials.core (of gypsum board), nthe hardened material filling the space between the face and back papers consisting substantially ofrehydrated gypsum with

27、 additives.core (of gypsum panel products), nthe hardened material, consisting substantially of gypsum, with additives, that fills the spacebetween the face and the back of the gypsum panel product.cored tile or block,nsee gypsum tile or block. (C52)cornerbead, nan accessory for outside corners.corn

28、er reinforcement, exterior, na preformed section of wire or expanded sheet steel, for the reinforcement of exterior stuccoexternal corners (arrises).cure (portland cement plaster or stucco), v(1) to provide conditions conducive to the hydration process of portland cementplaster or stucco, or (2) to

29、maintain proper temperature and a sufficient quantity of water within the plaster to ensure cementhydration.density, nthe weight per unit volume of a material. (C472)dried sample, na sample devoid of free water.edge (of glass mat gypsum panels), nthe bound edge as manufactured.edge (of gypsum board)

30、, nthe paper-bound edge as manufactured.edge trim, nan accessory to cover exposed ends or edges of gypsum board.embedding compoundsee taping compound.end (of glass mat gypsum panels), nthe end perpendicular to the bound edge. The gypsum core is always exposed.end (of gypsum board), nthe end perpendi

31、cular to the paper-bound edge. The gypsum core is always exposed.expansion joint,nsee control (expansion-contraction) joint.face, nthe surface designed to be left exposed to view or to receive decoration or additional finishes.facer, na woven or nonwoven fabric or membrane on the surface of a gypsum

32、 board or gypsum panel product that is an integralpart of the product.featured edge, nan edge configuration of the paper bound edge of gypsum board that provides special design or performance.fineness modulus, nan empirical factor obtained by adding total percentages of a sample of aggregate retaine

33、d on each of aspecified series of sieves and dividing by 100. The sieve sizes used are: No. 100 (150 m), No. 50 (300 m), No. 30 (600 m),No. 16 (1.18 mm), No. 8 (2.36 mm), No. 4 (4.75 mm), 38 in. (9.5 mm), 34 in. (19.0 mm), 112 in. (38.1 mm) and larger, increasingin the ratio of 2 to 1.finish coat, n

34、the final layer of plaster applied over a basecoat or other substrate.finishing compound, n(sometimes called topping compound) a compound specifically formulated and manufactured for useover taping or all purpose compounds to provide a smooth and level surface for the application of decoration.fire-

35、resistance classification, na standard rating of fire-resistance and protective characteristics of a building construction orassembly. (E119)flame spread classification, na standard rating of relative surface burning characteristics of a building material as compared toa standard material. (E84)flex

36、ural strength, nthe maximum load sustained by a standard specimen of a sheet material when subjected to a bending force.floating, vthe act of spreading, compacting, or consolidating to achieve a specified uniform appearance.C11 17a3framing member, nstud, plate, track, joist, furring, and other suppo

37、rt to which a gypsum panel product, or metal plaster baseis attached.free water, nall water contained by gypsum board or plaster in excess of that chemically held as water of crystallization.gauging plaster, na calcined gypsum plaster designed to be mixed with lime putty. (C28/C28M)glass mat, na wov

38、en or non-woven fabric of glass fibers with or without a binder.glass mat gypsum panel, na gypsum panel product with glass mat facers.grout, ngypsum or portland cement plaster used to fill crevices or to fill hollow metal frames.gypsum, nthe mineral consisting primarily of fully hydrated calcium sul

39、fate, CaSO42H2O or calcium sulfate dihydrate.(C22/C22M)gypsum backing board, na 14 in. to 58 in. gypsum board for use as a backing for gypsum wallboard, acoustical tile, or otherdry cladding.water resistant gypsum backing boarda gypsum board designed for use on walls primarily as a base for the appl

40、ication ofceramic, or plastic tile.gypsum base forveneerplasters, na gypsum board used as the base for application of a gypsum veneer plaster. (C588/C588M)gypsum board, nthe generic name for a family of sheet products consisting of a noncombustible core primarily of gypsum withpaper surfacing.gypsum

41、 casting plaster, na calcined gypsum plaster used primarily to form objects, such as lamp bases, art ware, and novelties,and so forth. (C59/C59M)gypsum concrete, na calcined gypsum mixed with wood chips or aggregate, or both. (C317/C317M)gypsum core board, na 34 in. (19.0 mm) to 1 in. (25.4 mm) gyps

42、um board consisting of a single board or factory laminatedmultiple boards, used as a gypsum stud or core in semisolid or solid gypsum board partitions.gypsum formboard, na gypsum panel product used as the permanent form for poured gypsum roof decks. (C318/C318M)gypsum lath, na gypsum board used as t

43、he base for application of gypsum plaster. (C37/C37M)perforated gypsum latha gypsum lath having perforations to provide mechanical keying of the basecoat plaster.foil-backed gypsum laththe same as plain gypsum lath except that in addition, the back surface shall be covered with acontinuous sheet of

44、pure bright finished aluminum foil.type X latha gypsum lath specially manufactured to provide specific fire-resistant characteristics.gypsum molding plaster, na calcined gypsum plaster used primarily for plaster casts or molds, sometimes used as a gaugingplaster. (C59/C59M, C28/C28M)gypsum neat plas

45、ter, na calcined gypsum mixed at the mill with ingredients to control working quality and setting time.(C28/C28M)DISCUSSIONNeat plaster is either fibered or unfibered. The addition of aggregate is required on the job.gypsum panel products, nthe general name for a family of sheet products consisting

46、essentially of gypsum.gypsum plaster, nthe generic name for a family of powdered cementitious products consisting primarily of calcined gypsumwith additives to modify physical characteristics, and having the ability, when mixed with water, to produce a plastic mortar orslurry which can be formed to

47、the desired shape by various methods and will subsequently set to a hard, rigid mass. (C28/C28M)gypsum sheathing, na gypsum board used as a backing for exterior surface materials, manufactured with water-repellant paperand may be manufactured with a water-resistant core. (C1396/C1396M)gypsum tile or

48、 block, na cast gypsum building unit. (C52)gypsum veneer plaster systems, nveneer plaster applied in accordance with Specification C843 to gypsum base for veneerplasters.gypsum wallboard, na gypsum board used primarily as an interior surfacing for building structures. (C36/C36M)C11 17a4foil-backed g

49、ypsum wallboarda gypsum wallboard with the back surface covered with a continuous sheet of pure brightfinished aluminum foil. (C36/C36M)type X gypsum wallboarda gypsum wallboard specially manufactured to provide specific fire-resistant characteristics(C36/C36M).gypsum wood-fibered plaster, na calcined gypsum plaster containing shredded or ground wood fiber added during manufacture.hemihydrate, nthe dry powder, calcium sulfate hemihydrate, resulting from calcin

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