1、Designation:D 3320 00(Reapproved 2004)e1Standard Specification forEmulsified Coal-Tar Pitch(Mineral Colloid Type)1This standard is issued under the fixed designation D 3320;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.e1NOTEEditorial changes were made throughout in Dece
3、mber 2004.1.Scope1.1 This specification covers mineral-colloid-stabilized,emulsified coal-tar pitch suitable for use as a weather-protective and aliphatic-solvent resistant coating over bitumi-nous pavements of airports,parking areas,and driveways.1.2 The values stated in SI(metric)units are to be r
4、egardedas the standard.1.3 The following precautionary caveat pertains only to thetest method portion,Section 6,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish a
5、ppropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D 140 Practice for Sampling Bituminous MaterialsD 490 Specification for Road TarD 529 Practice for Enclosed Carbon-Arc Exposures of Bi-tuminous Mate
6、rialsD 2939 Test Methods for Emulsified Bitumens Used asProtective CoatingsD 3699 Specification for Kerosine2.2Federal Specification:3VV-K-211 Kerosene3.Materials and Manufacture3.1 The emulsion shall be made using tars having viscositiesof RT-11 or higher.The tars shall conform to the requirementso
7、f Specification D 490.3.2 Mineral filler(mineral colloids)shall consist of finelyground clay,silica,or other inert inorganic materials.(WarningBentonitic or highly expansive clays may causedrying and shrinkage problems,which may affect the durabilityof the pavement sealer.)3.3 When specified,the emu
8、lsion shall be fortified withantifreeze.4.Physical Requirements4.1 The emulsion shall be of suitable consistency for appli-cation by brush,squeegee,roller,or suitable spray equipment.The material shall be used as received.It shall not be dilutedwith water or thinned by heating.It shall bond firmly t
9、oproperly prepared damp or primed surfaces.NOTE1Pavement and ambient temperature should be not less than7C(45F)at the time of application and for at least 12 h thereafter,withno precipitation of rain,snow,and so forth,until the emulsion has dried.4.2 The product shall be of smooth,uniform consistenc
10、ywithout settlement or segregation in storage to the extent thatit cannot be readily dispersed by ordinary stirring.4.3 The material,after stirring to homogeneity,shall besuitable for application by the selected method in single coatsof approximately 0.3 to 0.4 L/m2(34to 1 gal/100 ft2)withoutappreci
11、able drainage on inclines up to 0.8%(0.1 in./ft).4.4 The material shall conform to the physical propertiesprescribed in Table 1 prior to fortification with antifreeze.5.Sampling5.1 Sample in accordance with Practice D 140 and TestMethods D 2939.1This specification is under the jurisdiction of ASTM C
12、ommittee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.09on Bituminous Emulsions.Current edition approved Dec.1,2004.Published December 2004.Originallyapproved in 1974.Last previous edition approved in 2000 as D 3320 00.2For referenced ASTM standards,visit the
13、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.3Obsolete.Previously available from Standardization Documents Order Desk,Bldg.4 Section D,700 Robbins Ave.P
14、hiladelphia,PA 19111-5094,Attn:NPODS.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.6.Test Methods6.1 Wet Film ContinuityUsing a spatula,spread the wetemulsion to a thin film on a sheet of standard 67.7-g/m2(18-lb)mimeograph paper.As the
15、 emulsion is drawn out to a smear,itshall show a uniformly smooth nongranular consistency,freeof coarse particles.6.2 Resistance to Freezing(when specified)Expose arepresentative specimen of the emulsion to a temperatureof 18C(0F)for 24 h;then warm the specimen to 25C(77F)in an environment not excee
16、ding 38C(100F)and stirthoroughly.NOTE2In any test utilizing an oven,the oven to be used shall be agravity convection type.The internal dimensions of the oven shall be notless than 305 by 305 by 305 mm(12 by 12 by 12 in.).6.3 Density at 25C(77F)See Section 7 on Weight perGallon in Test Methods D 2939,except express the density inkg/m3.6.4 VolatilesDetermine by the difference between residue(6.5)and 100%.6.5 ResidueTest Methods D 2939,Section 8 on Residueby Evaporation.6.6 Resistance to Volatiliza
