ASTM C11-2010a Standard Terminology Relating to Gypsum and Related Building Materials and Systems《石膏及相关建筑材料和系统的相关标准术语》.pdf

1、Designation: C11 10aStandard 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 revisio

2、n. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This standard covers terminology relating to gypsumand related building materials and systems. The terms aregenerically defined.

3、More specific and expanded definitionsmay appear in appropriate standards.2. Referenced Documents2.1 ASTM Standards:2C22/C22M Specification for GypsumC28/C28M Specification for Gypsum PlastersC35 Specification for Inorganic Aggregates for Use inGypsum PlasterC36/C36M Specification for Gypsum Wallboa

4、rd3C37/C37M Specification for Gypsum Lath3C52 Specification for Gypsum Partition Tile or Block3C59/C59M Specification for Gypsum Casting Plaster andGypsum Molding PlasterC61/C61M Specification for Gypsum Keenes CementC317/C317M Specification for Gypsum ConcreteC318/C318M Specification for Gypsum For

5、mboardC472 Test Methods for Physical Testing of Gypsum, Gyp-sum Plasters and Gypsum ConcreteC473 Test Methods for Physical Testing of Gypsum PanelProductsC475/C475M Specification for Joint Compound and JointTape for Finishing Gypsum BoardC843 Specification for Application of Gypsum Veneer Plas-terC5

6、57 Specification for Adhesives for Fastening GypsumWallboard to Wood FramingC587 Specification for Gypsum Veneer PlasterC588/C588M Specification for Gypsum Base for VeneerPlasters3C954 Specification for Steel Drill Screws for the Applica-tion of Gypsum Panel Products or Metal Plaster Bases toSteel S

7、tuds from 0.033 in. (0.84 mm) to 0.112 in. (2.84mm) in ThicknessC1007 Specification for Installation of Load Bearing(Transverse and Axial) Steel Studs and Related Accesso-riesC1396/C1396M Specification for Gypsum BoardE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M T

8、est Methods for Water Vapor Transmission ofMaterialsE119 Test Methods for Fire Tests of Building Constructionand MaterialsE337 Test Method for Measuring Humidity with a Psy-chrometer (the Measurement of Wet- and Dry-Bulb Tem-peratures)3. Terminologyaccelerator, na material that reduces setting time.

9、accessories, nproducts fabricated for the purpose of formingcorners, edges, control joints, or decorative effects.adhesive, na substance capable of holding materials togetherby surface attachment.admixture, na material other than water, aggregates, hy-draulic cementitious material, and fiber reinfor

10、cement that isused as an ingredient to modify properties and is added to thebatch before or during its mixture.aggregate, nan inert granular material which may be addedto gypsum plasters. (C35)all purpose compound, na compound formulated andmanufactured to serve as a taping or finishing compound, or

11、both.anhydrite, nthe mineral consisting primarily of anhydrouscalcium sulfate, CaSO4.1This terminology is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.91 on Terminology and Editorial.Current editi

12、on approved Aug. 1, 2010. Published September 2010. Originallyapproved in 1916. Last previous edition approved in 2010 as C1110. DOI:10.1520/C0011-10a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStan

13、dards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Dr

14、ive, PO Box C700, West Conshohocken, PA 19428-2959, United States.arris (of an arch), nthe outside corner or angle formed bythe meeting of a wall surface with the curved surface of anarch (see Fig. 1).base coat, nany or all layers of plaster in place prior toapplication of finish coats.DISCUSSIONThe

15、 first application is normally called a scratch coatand the second application is referred to as a brown coat.bedding coat, nthat coat of plaster to receive aggregate orother decorative material of any size, impinged or embeddedinto its surface, before it sets.bond plaster, na calcined gypsum plaste

16、r specially formu-lated for application over rough monolithic concrete as abonding coat for a subsequent gypsum plaster layer. (C28/C28M)bridging, nin framing, sections of wood or metal piecesused between framing members to stiffen, give lateralsupport, and minimize rotation.brown coat, nthe second

17、layer in three-coat plaster applica-tion.building construction joint, na designed division of abuilding that allows movement of all component parts of thebuilding, in any plane, which may be caused by thermal,seismic, wind loading, or any other force. The constructionof the separation is accomplishe

18、d by one of the followingmethods: (1) manufactured devices suitable for this applica-tion, or (2) by field fabrication of suitable materials.calcined gypsum, na dry powder; primarily calcium sulfatehemihydrate, resulting from calcination of gypsum; cemen-titious base for production of most gypsum pl

19、asters: alsocalled plaster of paris, sometimes called stucco.calcium sulfate, nthe chemical compound CaSO4.cementitious material, na material that, when mixed withwater, with or without aggregate, provides the plasticity andthe cohesive and adhesive properties necessary for place-ment, and the forma

20、tion of a rigid mass.check cracking (in joint systems), nshort, narrow cracksrandomly oriented in the surface of the dried joint com-pound.coat, na layer of plaster applied in a single bined water, nthe water chemically held, as water ofcrystallization, by the calcium sulfate dihydrate or hemihy-dra

21、te pressive strength, nthe maximum load sustained by astandard specimen of a material when subjected to a crush-ing force.consistency, na property of a material determined by thecomplete flow force relation. (C557)consistency (normal), nthe number of millilitres of waterper 100 g of gypsum plaster o

22、r gypsum concrete required toproduce a mortar or a slurry of specified fluidity. (C472)control (expansion-contraction) joint, na designed separa-tion in the system materials that allows for movement causedby expansion or contraction of the system. The constructionof the separation is accomplished by

23、 one of the followingmethods: (1) manufactured devices suitable for this applica-tion, or (2) by field fabrication of suitable materials.core (of gypsum board), nthe hardened material filling thespace between the face and back papers consisting substan-tially of rehydrated gypsum with additives.core

24、d tile or block, nsee gypsum tile or block. (C52)cornerbead, nan accessory for outside corners.corner reinforcement, exterior, na preformed section ofwire or expanded sheet steel, for the reinforcement ofexterior stucco external corners (arrises).cure (portland cement plaster or stucco), v(1) to pro

25、videconditions conducive to the hydration process of portlandcement plaster or stucco, or (2) to maintain proper tempera-ture and a sufficient quantity of water within the plaster toensure cement hydration.density, nthe weight per unit volume of a material.(C472)dried sample, na sample devoid of fre

26、e water.edge (of glass mat gypsum panels), nthe bound edge asmanufactured.edge (of gypsum board), nthe paper-bound edge as manu-factured.edge trim, nan accessory to cover exposed ends or edges ofgypsum board.embedding compoundsee taping compound.end (of glass mat gypsum panels), nthe end perpendicul

27、arto the bound edge. The gypsum core is always exposed.end (of gypsum board), nthe end perpendicular to thepaper-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 toreceive decoration or

28、additional finishes.featured edge, nan edge configuration of the paper boundedge of gypsum board that provides special design orperformance.fineness modulus, nan empirical factor obtained by addingtotal percentages of a sample of aggregate retained on eachof a specified series of sieves and dividing

29、 by 100. The sievesizes used are: No. 100 (150 m), No. 50 (300 m), No. 30FIG. 1 Arris (of an Arch)C11 10a2(600 m), No. 16 (1.18 mm), No. 8 (2.36 mm), No. 4 (4.75mm),38 in. (9.5 mm),34 in. (19.0 mm), 112 in. (38.1 mm)and larger, increasing in the ratio of 2 to 1.finish coat, nthe final layer of plast

30、er applied over a basecoator other substrate.finishing compound, n(sometimes called topping com-pound) a compound specifically formulated and manufac-tured for use over taping or all purpose compounds toprovide a smooth and level surface for the application ofdecoration.fire-resistance classificatio

31、n, na standard rating of fire-resistance and protective characteristics of a building con-struction or assembly. (E119)flame spread classification, na standard rating of relativesurface burning characteristics of a building material ascompared to a standard material. (E84)flexural strength, nthe max

32、imum load sustained by astandard specimen of a sheet material when subjected to abending force.floating, vthe act of spreading, compacting, or consolidatingto achieve a specified uniform appearance.framing member, nstud, plate, track, joist, furring, andother support to which a gypsum panel product,

33、 or metalplaster base is attached.free water, nall water contained by gypsum board or plasterin excess of that chemically held as water of crystallization.gauging plaster, na calcined gypsum plaster designed to bemixed with lime putty. (C28/C28M)glass mat, na woven or non-woven fabric of glass fiber

34、swith or without a binder.grout, ngypsum or portland cement plaster used to fillcrevices or to fill hollow metal frames.gypsum, nthe mineral consisting primarily of fully hydratedcalcium sulfate, CaSO42H2O or calcium sulfate dihydrate.(C22/C22M)gypsum backing board, na14 in. to58 in. gypsum board fo

35、ruse as a backing for gypsum wallboard, acoustical tile, orother dry cladding.water resistant gypsum backing boarda gypsum boarddesigned for use on walls primarily as a base for theapplication of ceramic, or plastic tile.gypsum base for veneer plasters, na gypsum board used asthe base for applicatio

36、n of a gypsum veneer plaster.(C588/C588M)gypsum board, nthe generic name for a family of sheetproducts consisting of a noncombustible core primarily ofgypsum with paper surfacing.gypsum casting plaster, na calcined gypsum plaster usedprimarily to form objects, such as lamp bases, art ware, andnovelt

37、ies, etc. (C59/C59M)gypsum concrete, na calcined gypsum mixed with woodchips or aggregate, or both. (C317/C317M)gypsum core board, na34 in. (19.0 mm) to 1 in. (25.4 mm)gypsum board consisting of a single board or factorylaminated multiple boards, used as a gypsum stud or core insemisolid or solid gy

38、psum board partitions.gypsum formboard, na gypsum panel product used as thepermanent form for poured gypsum roof decks. (C318/C318M)gypsum lath, na gypsum board used as the base forapplication of gypsum plaster. (C37/C37M)perforated gypsum latha gypsum lath having perforationsto provide mechanical k

39、eying of the basecoat plaster.foil-backed gypsum laththe same as plain gypsum lathexcept that in addition, the back surface shall be coveredwith a continuous sheet of pure bright finished aluminumfoil.type X latha gypsum lath specially manufactured toprovide specific fire-resistant characteristics.g

40、ypsum molding plaster, na calcined gypsum plaster usedprimarily for plaster casts or molds, sometimes used as agauging plaster. (C59/C59M, C28/C28M)gypsum neat plaster, na calcined gypsum mixed at the millwith ingredients to control working quality and setting time.(C28/C28M)DISCUSSIONNeat plaster i

41、s either fibered or unfibered. The additionof aggregate is required on the job.gypsum panel products, nthe general name for a family ofsheet products consisting essentially of gypsum.gypsum plaster, nthe generic name for a family of pow-dered cementitious products consisting primarily of calcinedgyp

42、sum with additives to modify physical characteristics,and having the ability, when mixed with water, to produce aplastic mortar or slurry which can be formed to the desiredshape by various methods and will subsequently set to ahard, rigid mass. (C28/C28M)gypsum sheathing, na gypsum board used as a b

43、acking forexterior surface materials, manufactured with water-repellant paper and may be manufactured with a water-resistant core. (C1396/C1396M)gypsum tile or block, na cast gypsum building unit.(C52)gypsum veneer plaster systems, nveneer plaster applied inaccordance with Specification C843 to gyps

44、um base forveneer plasters.gypsum wallboard, na gypsum board used primarily as aninterior surfacing for building structures. (C36/C36M)foil-backed gypsum wallboarda gypsum wallboard withthe back surface covered with a continuous sheet of purebright finished aluminum foil. (C36/C36M)type X gypsum wal

45、lboarda gypsum wallboard speciallymanufactured to provide specific fire-resistant characteristics(C36/C36M).gypsum wood-fibered plaster, na calcined gypsum plastercontaining shredded or ground wood fiber added duringmanufacture.hemihydrate, nthe dry powder, calcium sulfate hemihy-drate, resulting fr

46、om calcination of CaSO42H2O, calciumsulfate dihydrate. See calcined gypsum.joining, nthe juncture of two separate plaster applications ofthe same coat, usually within a single surface plane.joint compound, na compound used for taping or finishinggypsum board, or both.C11 10a3joint tape, na strip of

47、tape made from paper, metal, fabric,glass mesh, or other material, that is commonly used in ajoint system to reinforce the joints between adjacent gypsumpanel products. (C475/C475M)glass-mesh joint tape, njoint tape made from multidirec-tional glass yarn.paper joint tape, njoint tape made from paper

48、 anddesigned to be embedded in the joint compound.self-adhering joint tape, na glass-mesh joint tape designedto adhere without requiring mechanical attachment.Keenes cement, nan anhydrous gypsum plaster character-ized by a low mixing water requirement and special settingproperties, primarily used wi

49、th lime to produce hard, densefinish coats. (C61/C61M)key, nthe grip or mechanical bond of one coat of plaster toanother coat, or to a substrate.DISCUSSIONIt may be accomplished physically by the penetration ofwet mortar or crystals into paper fibers, perforations, scoring irregu-larities, or by the embedment of the lath.lathsee gypsum lath.load-bearing partition, na partition designed to support aportion of the building structure.machine direction, nthe d