ASTM_D_6935_-_17.pdf

Designation:D693517Standard Test Method forDetermining Cement Mixing of Emulsified Asphalt1This standard is issued under the fixed designation D6935;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 is intended to be a mixing test used toidentify or classify a slow-setting,SS or CSS,type of emulsi-fied asphalt.1.2 The values stated in SI units are to be regarded asstandard.No other units of measure are included in thisstandard.1.3 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements for the standard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C115 Test Method for Fineness of Portland Cement by theTurbidimeterC150 Specification for Portland CementD6934 Test Method for Residue by Evaporation of Emulsi-fied AsphaltD6997 Test Method for Distillation of Emulsified AsphaltE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Significance and Use3.1 The result of this test method indicates the ability of aslow-setting emulsified asphalt to mix with a finely divided,high-surface-area material(high early strength,Type III,port-land cement)without breaking the emulsified asphalt.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 50 C shall be heated to 50 6 3 C in the originalsample container in a water bath or oven.The container shouldbe vented to relieve pressure.After the sample reaches 50 63 C,stir the sample to achieve homogeneity.4.3 Emulsified asphalts with viscosity testing requirementsof 25 C should be mixed or stirred at 25 6 3 C in the originalsample container to achieve homogeneity.NOTE1Emulsified asphalts with viscosity testing requirements of25 C 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 3 Cbefore testing.5.Apparatus5.1 SievesA 180-m sieve and a 1.40-mm sieve with adiameter of approximately 75 mm,made of wire cloth con-forming to Specification E11.5.2 PanA tin box cover or shallow metal pan of appro-priate size to fit over the bottom of the standard sieve.5.3 Mixing BowlA round-bottom metal dish or a kitchensaucepan of approximately 500-mL capacity.5.4 Stirring RodA metal rod with rounded ends,approxi-mately 10 mm in diameter.5.5 GraduateA 100-mL graduated cylinder.5.6 Balance,capable of weighing 1000 g to the nearest0.1 g.5.7 OvenCapable of maintaining a temperature of 163 63 C.5.8 ThermometerA thermometric device capable of mea-suring the temperature of the oven and the emulsified asphalt towithin 1 C.1This 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 Oct.1,2017.Published October 2017.Originallyapproved in 2004.Last previous edition approved in 2011 as D6935 11.DOI:10.1520/D6935-17.2For 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 6.Reagents and Materials6.1 CementHigh-early-strength portland cement conform-ing to the requirements for Type III portland cement inSpecification C150 and having a minimum specific surfacearea of 1900 cm2/g,as measured by Test Method C115.7.Procedure7.1 Dilute the emulsified asphalt with distilled or deionizedwater to a residue of 55%,as determined by distillation(TestMethod D6997)or by e