ASTM_D_6933_-_13.pdf

Designation:D693313Standard Test Method forOversized Particles in Emulsified Asphalts(Sieve Test)1This standard is issued under the fixed designation D6933;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 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 degree to which an emulsi-fied asphalt may contain particles of asphalt or other discreetsolids retained on a 850-m mesh sieve.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This test method 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.2.Referenced Documents2.1 ASTM Standards:2D7496 Test Method for Viscosity of Emulsified Asphalt bySaybolt Furol ViscometerE1 Specification for ASTM Liquid-in-Glass ThermometersE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Significance and Use3.1 The retention of an excessive amount of particles on thesieve indicates that problems may occur in handling andapplication of the material.Particles of asphalt retained on thesieve often are caused by agglomeration of the dispersed phase.Storage,pumping,handling,and temperature can all contributeto the formation of particles.Contamination from the tank,transport,or hose are other factors affecting particle formation.4.Sample Conditioning for Testing4.1 All emulsified asphalts shall be properly stirred toachieve homogeneity before testing.4.2 All emulsified asphalts with viscosity testing require-ments of 50C shall be heated to 50 6 3C in the originalsample container in a water bath or oven.The container shouldbe vented to relieve pressure.After the sample reaches 50 63C,stir the sample to achieve homogeneity.4.3 Emulsified asphalts with viscosity testing requirementsof 25C should be mixed or stirred at 25 6 3C in the originalsample container to achieve homogeneity.NOTE1Emulsified asphalts with viscosity testing requirements of25C may be heated and stirred as specified in 4.2,if necessary.In theevent the 4.2 method is used,the sample should be cooled to 25 6 3Cbefore testing.5.Apparatus and Reagents5.1 SieveA sieve having a nominal 76-mm frame con-forming to Specification E11,and having a 850-m wire sievecloth.5.2 PanA tin box cover or shallow metal pan of appro-priate size to fit over the bottom of the standard sieve.5.3 Thermometric deviceASTM 17C for tests at 25C andASTM 19C for tests at 50C,conforming to the requirementsof Specification E1,or any other thermometric device of equalaccuracy.5.4 Nonionic Surfactant Solution(1%)1 g of nonionicsurfactant(ethoxylated nonylphenol is recommended)dis-solved in distilled water and diluted to 100 mL.5.5 Distilled or Deionized Water5.6 Balancescapable of weighing 2000 g to within 61 g,and 500 g to within 60.1 g.5.7 OvenCapable of maintaining temperature of 110 65C.5.8 Desiccator.6.Hazards6.1 WARNING:Mercury has been designated by theUnited States Environmental Protection Agency(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 and1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.42 onEmulsified Asphalt Test.Current edition approved June 1,2013.Published July 2013.Originally approvedin 2004.Last previous edition approved in 2008 as D6933 08.DOI:10.1520/D6933-13.2For referenced 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 mercury containing products.See the applicable product Ma-terial Safety Data Sheet(MSDS)for details and EPAswebsitewww.epa.gov/mercury/faq.htmfor additional in-formation.Users should be aware that selling mercury,mer-cury containing products,or both,into your state may beprohibited by state law.7.Procedure7.1 The temperature at which the sieve test shall be per-formed is related to the emulsified asphalts viscosity.For thosematerials whose viscosity in Saybolt Furol seconds as deter-mined by Test Method D7496 is 100 s or less at 25C,performthe test at ambient temperature.For those materials whoseviscosity is more than 100 s at 25C and those whose viscosityis specified at 50C,use a test temperature of 50 6 3C.7.2 Determine the mass of th