1、Designation:D13912Standard Test Method forFloat Test for Bituminous Materials1This standard is issued under the fixed designation D139;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.1.Scope1.1 This test method covers the float test for bituminousmaterials.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parenthese
3、s are for informationonly.1.3 WarningMercury has been designated by EPA andmany state agencies as a hazardous material that can causecentral nervous system,kidney,and liver damage.Mercury,orits vapor,may be hazardous to health and corrosive tomaterials.Caution should be taken when handling mercury a
4、ndmercury-containing products.See the applicable product Ma-terial Safety Data Sheet(MSDS)for details and EPAs website(http:/www.epa.gov/mercury/faq.htm)for additional informa-tion.Users should be aware that selling mercury or mercury-containing products,or both,in your state may be prohibited bysta
5、te law.1.4 This standard does not purport to address all of thesafety concerns,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.For a speci
6、ficprecaution statement,see 6.1.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD244 Test Methods and Practices for Emulsified AsphaltsD3666 Specification for Minimum Requirements for Agen-cies Testing and
7、Inspecting Road and Paving MaterialsD6997 Test Method for Distillation of Emulsified AsphaltE1 Specification for ASTM Liquid-in-Glass Thermometers2.2 IEC Standard:IEC 60854 Methods of Measuring the Performance of Ul-trasonic Pulse-Echo Diagnostic Equipment33.Summary of Test Method3.1 A plug of bitum
8、en is cast in a tapered collar.Theassembled float and collar is then floated in the testing bath atthe specified temperature.The time,in seconds,betweenplacing the apparatus on the water and the water breakingthrough the material shall be taken as a measure of theconsistency of the material under ex
9、amination.4.Significance and Use4.1 The float test characterizes the flow behavior or consis-tency of certain bituminous materials.4.2 This test method is useful in determining the consis-tency of bitumen as one element in establishing the uniformityof certain shipments or sources of supply.5.Appara
10、tus5.1 FloatThe float(Fig.1)shall be made of aluminum oraluminum alloy and shall be in accordance with the followingrequirements:MinNormalMaxMass of float,g37.7037.9038.10Total height of float,mm34.035.036.0Height of rim above lower26.527.027.5side of shoulder,mmThickness of shoulder,mm1.31.41.5Diam
11、eter of opening,mm11.011.111.25.2 CollarThe collar(Fig.1)shall be made of brass andshall be in accordance with the following requirements:MinNormalMaxMass of collar,g9.609.8010.00Over-all height of collar,mm22.322.522.7Inside diameter at bottom,mm12.7212.8212.92Inside diameter at top,mm9.659.709.75T
12、he top of the collar shall screw up tightly against the lowerside of the shoulder.5.3 Verification of AssemblyThe assembled float andcollar,with the collar filled flush with the bottom and weightedto a total mass of 53.2 g,shall float upon water with the rim 8.51This test method is under the jurisdi
13、ction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.44 onRheological Tests.Current edition approved Dec.1,2012.Published December 2012.Originallyapproved in 1922.Last previous edition approved in 2007 as D139 07.DOI:10.1520/D0139-12.2For refer
14、enced 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 American National Standards Institute(ANSI),25 W.43rd St.,4t
15、h Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6 1.5 mm above the surface of the water.This adjustment ofthe total mass of the assembly is for the purpose only ofstandardizing the depth of imm
16、ersion in the testing bath.5.4 Thermometric DeviceAn ASTM Low Softening PointThermometer,graduated in either Celsius or Fahrenheit de-grees as specified,having a range from 2 to+80C or+30 to+180F and conforming to the requirements for Thermometer15C or 15F,respectively,as prescribed in Specification E1,orequivalent thermometric device.5.4.1 A thermometer consisting of K type 30 AWG gaugethermocouple and a meter capable of reading 25C(77F)to260C(500F).The thermocouple shall be 61 to 76 cm(24 to30
