1、Designation: E605/E605M 93 (Reapproved 2015)1Standard Test Methods forThickness and Density of Sprayed Fire-Resistive Material(SFRM) Applied to Structural Members1This standard is issued under the fixed designation E605/E605M; the number immediately following the designation indicates the yearof ori
2、ginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript 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
3、 of Defense.1NOTEDesignation was changed to dual and units information was corrected editorially in August 2015.1. Scope1.1 These test methods cover procedures for determiningthickness and density of sprayed fire-resistive material (SFRM)used in structural assemblies. These include sprayed fiber and
4、cementitious types. The test methods are applicable to bothlaboratory and field procedures, as indicated in Section 7.1.2 These test methods require the application of SFRM inaccordance with the manufacturers published instructions.The apparatus, materials, and procedure used to apply theSFRM for la
5、boratory tests shall be the same as is used for theconstruction of either of the test assemblies described in TestMethods E119 and E84.1.3 There is no intent in these test methods to establishlevels of performance.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separat
6、ely as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 This standard does not purport to address all of thesafety concerns,
7、if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E84 Test Method for Surface Burning Character
8、istics ofBuilding MaterialsE119 Test Methods for Fire Tests of Building Constructionand MaterialsE631 Terminology of Building Constructions3. Terminology3.1 DefinitionsFor definitions of terms found in these testmethods, refer to Terminology E631.3.2 Definitions of Terms Specific to This Standard:3.
9、2.1 density, nthe weight3per unit volume of the SFRM.3.2.2 sprayed fire-resistive materials, nmaterials that aresprayed onto substrates to provide fire-resistive protection ofthe substrates.3.2.3 thickness, nthe distance measured from the substratesprayed with the SFRM, through the SFRM, to the oute
10、rsurface of the SFRM.4. Summary of Test Method4.1 The basic properties of density and thickness are deter-mined using a thickness gage, scales, steel rules, and templates.5. Significance and Use5.1 Certain properties, namely thickness and density, ofSFRM are basic. It is the intent of these test met
11、hods to provideprocedures to determine these properties.6. Apparatus6.1 Steel Rule, graduated in at least 1 mm 116 in. intervals.6.2 Thickness Gage, consisting of a needle or a pin and asliding disk perpendicular to the needle (see Fig. 1). The pinshall be of sufficient length for the thickness of t
12、he material tobe measured. This gage shall be graduated in 1 mm 116 in.intervals. This disk shall be perpendicular to the needle at alltimes and shall have a friction device to grip the pin unless1These test methods are under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is t
13、he direct responsibility of Subcommittee E06.21on Serviceability.Current edition approved Aug. 1, 2015. Published August 2015. Originallyapproved in 1977. Last previous edition approved in 2011 as E605 93 (2011).DOI: 10.1520/E0605-93R15E01.2For referenced ASTM standards, visit the ASTM website, www.
14、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.3Although mass is determined, the term weight is used in these test methods asa field-accepted substitute.Copyright ASTM
15、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1purposely moved. The disk diameter shall be a minimum of22 mm 78 in. and a maximum of 30 mm 118 in., to permitcontact with the surface of the specimen to be measured. Formaterials not readily penetrate
16、d by the depth gage, see 8.1.2.1and Note 2.6.3 Scales of sufficient capacity and sensitivity to weigh thetest specimen to an accuracy of at least 0.1 g.6.4 Rectangular Template of predetermined length andwidth having a minimum area of 310 cm248 in.2. No dimen-sion shall be less than 76 mm 3 in.6.5 K
17、nife, or other suitable device for cutting the specimen.6.6 Drying Oven, or other device capable of maintainingtemperature and humidity conditions during the specimencuring cycle, in accordance with the SFRM manufacturersrequirements. (See Section 7.2.)6.7 Unexpanded Polystyrene Beads, 500 mLDesigna
18、tionC Bead with a nominal diameter of 1.0 mm 0.04 in. (pre-ferred) or lead shotsize #8 (alternate).6.8 Graduated Cylinders, two 250 cm3.6.9 FunnelPolypropylene funnel having a top diameter of150 mm 6 in. and a bottom diameter of 28 mm 1.1 in.6.10 Beaker, 400 mL smooth wall type.6.11 Screed, minimum
19、150 mm 6 in. long rigid straightedge.6.12 PanTwo flat pans minimum 150 mm 6 in. diameterwith minimum 150 mm high rim.7. Test Specimen7.1 Laboratory Tests:7.1.1 The test specimens shall be SFRM applied to 1.5 mm0.06 in. (16 ga.), 400 by 400 mm 16 by 16 in. bare or gal-vanized steel plates.7.1.2 The s
20、pecimens shall be conditioned for a period of notless than 72 h at room temperature, 20 6 5C 68 6 9F anda relative humidity not greater than 60 %, until successiveweight readings, taken at 24 h intervals, differ by less than 1 %.7.2 Field Tests:7.2.1 As an alternate to 7.1.2, the specimens shall be
21、forcedried at a temperature of 43 6 6C 109 6 10F and a relativehumidity not greater than 60 % until successive readings, takenat 8 h intervals, differ by less than 1 %.8. Procedure8.1 Thickness:8.1.1 Selected areas to be measured for thickness shall be apredetermined, repetitive pattern to ensure ob
22、taining represen-tative average thickness.8.1.2 Determine the thickness by inserting the penetratingpin of the thickness gage perpendicular to and through theSFRM, to the substrate. When the point of the pin touches thesubstrate, move the sliding disk to the SFRM surface withsufficient force on the
23、disk to register the average plane of thesurface. Withdraw the gage to read the thickness in 1 mm 116in. increments as shown by the position of the sliding clipindicator.8.1.2.1 For the purpose of averaging measurements, anymeasurement 6 mm 14 in. or more, over the required designthickness, shall be
24、 recorded as the design thickness plus 6 mm.No individual measured thickness shall be more than 6 mmless, or more than 25 % less, than the required design thick-ness.NOTE 1Specific fire resistance rating criteria for beams, trusses, andcolumns may allow for a reduced thickness on flange tips. Theset
25、hicknesses are to be averaged apart from other sections of the structuralmember. Also, some fire rating assemblies have different thicknessrequirements for crests and valleys of floor decks and should be averagedapart.NOTE 2Medium and high density SFRM may be too hard to test forthickness by standar
26、d procedure. It is recommended to check thicknessesimmediately after application, and before curing.The applicator shall adjust the thickness of the freshly applied SFRMto yield thickness after cure, in accordance with the SFRM manufacturersrecommendations.If the product is cured and too hard to ins
27、ert the thickness gage, drillsmall diameter holes into the product just large enough to accommodatethe thickness gage pin. The thickness gage is then inserted into these holesand thickness is determined by the standard procedure. These holes are tobe closed off immediately following the test using t
28、he same SFRM.8.1.3 Conducting Thickness TestingOne bay per floor orone bay for each 10 000 ft2, whichever provides the greaternumber of tests. Thickness determinations for the followingstructural elements shall be conducted in each randomlyselected bay: one selected area of metal deck, concrete slab
29、, orwall section; one column; and one beam (joist or truss).NOTE 3The applicable building code governs. Consult the applicablebuilding code for exact requirements and tolerances.8.1.4 Tests for the Deck and Wall Section:FIG. 1 Thickness GageE605/E605M 93 (Reapproved 2015)128.1.4.1 Flat DecksIn the p
30、reselected area, lay out a300 mm 12 in. square. Take four random symmetrical mea-surements within that square and report as an average. (SeeNote 1.)8.1.4.2 Fluted DecksIn the preselected area, lay out a300 mm 12 in. square. Take four random symmetrical mea-surements within that square, one each of t
31、he following: valley,crest, and sides, and report as an average. (See Note 1.)8.1.5 Test for Beams, Joists (Trusses), and Columns:8.1.5.1 BeamsFor each preselected beam, lay out one300 mm 12 in. length and take nine thickness measurements(see Fig. 2) at each end of the 300 mm length (see Fig. 3). (S
32、eeNotes 1 and 2.)8.1.5.2 Joists (Trusses)For each preselected joist (truss),lay out one 300 mm 12 in. length and take seven thicknessmeasurements (see Fig. 4) at each end of the 300 mm length(see Fig. 5). (See Notes 1 and 2.)8.1.5.3 ColumnsFor each preselected column, lay out one300 mm 12 in. length
33、 and take twelve thickness measure-ments (see Fig. 6) at each end of the 300 mm length (see Fig.7). (See Notes 1 and 2.)8.1.5.4 Beams, Joists (Trusses), and ColumnsAverage,separately, the 18 thickness measurements for the beams, the14 thickness measurements for the joists (trusses), and the24 thickn
34、ess measurements for the columns. (A sample datasheet is shown in Fig. 8.) (See Notes 1 and 2.)8.1.6 Thickness DeficiencyAn item (deck, column, beam,or joist) is deficient if:8.1.6.1 An individual measured thickness is more than6mm14 in. less, or more than 25 % less, than the requiredfire resistance
35、 design thickness. (See Note 3.)8.1.6.2 The calculated average thickness of the SFRM isless than that required by the design.NOTE 4A thickness to density correction formula is contained incertain fire resistance rating criteria or is available from some SFRMmanufacturers. Consult the rating criteria
36、 and the SFRM manufacturer forspecific information before citing for deficiency.NOTE 5If an item is deficient, then only that specific item fails. Theremaining items in the bay, and like items in other areas of the building,shall not be deemed to have failed solely because the tested item hasfailed.
37、 (See 8.1.7.)8.1.7 Procedure in Case of DeficiencyIf an item isdeficient, then it shall be corrected and retested, along withanother of that specific item (that is, another column, if acolumn has failed, and so forth) selected at random.8.2 Density:8.2.1 Conduct one density test at random on each of
38、 thefollowing protected elements, per floor or per every930 m210 000 ft2, whichever provides the greatest number oftests: the flat portion of the deck; a beam, either the bottom ofthe beam lower flange or the beam web; and a column, eitherthe column web or the outside of one of the column flanges.8.
39、2.1.1 When density falls between the minimum averageand minimum individual values of the fire resistance design, asimilar, randomly selected element in the same area shall betested. If the average density of the two elements is then met,the area passes. If the average is not met, then those elements
40、in that area must be corrected.8.2.2 Length and WidthScore the specimen around theperimeter of the template.8.2.3 ThicknessUtilizing the procedure described in 7.1,take a minimum of twelve thickness measurements, symmetri-cally. Determine thickness measurements prior to the removalFIG. 2 Test Locati
41、ons for Measuring Thickness of Fire-ResistiveMaterials on BeamsNOTE 1Take nine measurements at each end of 12 in. length.FIG. 3 BeamFIG. 4 Test Locations for Measuring Thickness of Fire-ResistiveMaterials on Joists (Trusses)NOTE 1Take 7 measurements at each end of 12 in. length.FIG. 5 JoistE605/E605
42、M 93 (Reapproved 2015)13of SFRM. Consider the average of these twelve measurementsto be the thickness of the specimen.8.2.4 Weight3Cut the specimen through to the substrate,along the perimeter of the template. Carefully remove all of thein-place material from the substrate and cure in accordancewith
43、 7.2.8.2.5 Calculation of DensityCalculate density as follows:D 5Wl 3w 3t(1)where:D = density, kg/m3lb/ft3,W = constant weight of dried material, kg lb,l = length of the specimen, m ft,w = width of the specimen, m ft, andt = average thickness of the specimen, m ft.8.3 Displacement Method:8.3.1 This
44、is an alternative method to 8.2 for determiningthe in-place density of specimens with irregular surfaces ordimensions or for specimens that are difficult to remove fromthe substrate.8.3.2 The minimum sample size recommended is131 cm38 in.3.8.3.3 The sample shall be cut to a uniform size, removing al
45、luneven edges.8.3.4 Cure the specimen in accordance with 7.1.2 or 7.2.8.3.5 Determine weight.8.3.6 Volume Determination:8.3.6.1 Place the empty 400 mL beaker in the center of theflat pan and pour the unexpanded polystyrene beads or shotthrough the funnel until the excess beads (shot) fall over theri
46、m of the beaker.8.3.6.2 Hold the screed perpendicular to the rim of thebeaker. Begin at the edge opposite the spout and screed off theexcess beads (shot). One pass is all that is needed.8.3.6.3 Discard the overflow that collects in the pan.8.3.6.4 Pour all the beads (shot) remaining in the beaker in
47、tothe graduated cylinders.8.3.6.5 Return the empty beaker into the center of the panand pour about 100 mL of beads (shot) poured from thegraduated cylinder(s) into the beaker. Do not shake the beakerin any way.8.3.6.6 Place the sample to be tested in the center of thebeaker making sure no edge touch
48、es the side of the glass.Gently twist the sample if required.8.3.6.7 Pour the remainder of the beads from the graduatedcylinders over the sample, letting the excess beads (shot) flowover the top of the beaker into the pan. Do not leave any beads(shot) in the graduated cylinders.8.3.6.8 Screed the ex
49、cess beads (shot) off the top of thebeaker (8.3.6.1) and remove the beaker from the pan.8.3.6.9 Using the funnel, pour the beads (shot) collected inthe pan into the empty graduated cylinder and read the volumedisplaced by the sample. Do not tap or shake the graduatedcylinder when reading.8.3.7 Calculation of DensityCalculate density as follows:D 5W 362.43V(2)where:D = density in lb/ft3,W = constant weight of dried material, g, andV = volume of sample dried in cm3(equal to
