1、Designation: D6933 13D6933 18Standard 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 las
2、t 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 emulsified asphalt may contain particles of asphalt or other discreet soli
3、dsretained on a 850-m mesh sieve.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 This test method standard does not purport to address all of the safety concerns, if any, associated with its use. It is theresponsibilit
4、y of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices anddetermine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardiza
5、tionestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D3666 Specification for Minimum Requirements for Agenc
6、ies Testing and Inspecting Road and Paving MaterialsD7496 Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol ViscometerE1 Specification for ASTM Liquid-in-Glass ThermometersE11 Specification for Woven Wire Test Sieve Cloth and Test Sieves3. Significance and Use3.1 The retention of an e
7、xcessive amount of particles on the sieve indicates that problems may occur in handling and applicationof the material. Particles of asphalt retained on the sieve often are often caused by agglomeration of the dispersed phase. Storage,pumping, handling, and temperature can all contribute to the form
8、ation of particles. Contamination from the tank, transport, or hoseare other factors affecting particle formation.NOTE 1The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and thecapability, calibration, and maintenance of th
9、e equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capableof competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone doesnot completely ensure reliable results. Reli
10、able results depend on many factors; following the suggestions of Specification D3666 or some similaracceptable guideline provides a means of evaluating and controlling some of those factors.4. Sample Conditioning for Testing4.1 All emulsified asphalts shall be properly stirred to achieve homogeneit
11、y before testing.4.2 All emulsified asphalts with viscosity testing requirements of 50C50 C shall be heated to 50 6 3C3 C in the originalsample container in a water bath or oven. The container should be vented to relieve pressure. After the sample reaches 50 63C,3 C, stir the sample to achieve homog
12、eneity.4.3 Emulsified asphalts with viscosity testing requirements of 25C25 C should be mixed or stirred at 25 6 3C3 C in theoriginal sample container to achieve homogeneity.NOTE 2Emulsified asphalts with viscosity testing requirements of 25C25 C may be heated and stirred as specified in 4.2, if nec
13、essary. In the event1 This test method is under the jurisdiction ofASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.42 on EmulsifiedAsphalt Test.Current edition approved June 1, 2013Dec. 15, 2018. Published July 2013January 2019. Originally approve
14、d in 2004. Last previous edition approved in 20082013 asD6933 08.D6933 13. DOI: 10.1520/D6933-13.10.1520/D6933-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the
15、 standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes acc
16、urately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United St
17、ates1the 4.2 method is used, the sample should be cooled to 25 6 3C3 C before testing.5. Apparatus and Reagents5.1 SieveA sieve having a nominal 76-mm frame conforming to Specification E11, and having a 850-m wire sieve cloth.5.2 PanA tin box cover or shallow metal pan of appropriate size to fit ove
18、r the bottom of the standard sieve.5.3 Thermometric deviceDeviceASTM 17C for tests at 25C25 C and ASTM 19C for tests at 50C,50 C, conforming tothe requirements of Specification E1, or any other thermometric device of equal accuracy.5.4 Nonionic Surfactant Solution (1 %)1 g of nonionic surfactant (et
19、hoxylated nonylphenol is recommended) dissolved indistilled water and diluted to 100 mL.5.5 Distilled or Deionized WaterWater.5.6 BalancescapableCapable of weighing 2000 g to within 61 g, and 500 g to within 60.1 g.5.7 OvenCapable of maintaining temperature of 110 6 5C.5 C.5.8 Desiccator.6. Hazards6
20、1 WarningMercury has been designated by the United States Environmental Protection Agency (EPA) and many stateagencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may behazardous to health and corrosive to materials. Caution should
21、 be taken when handling mercury and mercury-containing products.See the applicable product Material Safety Data Sheet (MSDS) for details and the EPAs website (www.epa.gov/mercury/faq.htm)for additional information. Users should be aware that selling mercury, mercury-containing products, or both, in
22、your state maybe prohibited by state law.WARNING: Mercury has been designated by the United States Environmental ProtectionAgency (EPA)and many state agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or itsvapor, may be hazardous to health and
23、corrosive to materials. Caution should be taken when handling mercury and mercurycontaining products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs websitewww.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury, mercury co
24、ntaining products, or both,into your state may be prohibited by state law.7. Procedure7.1 The temperature at which the sieve test shall be performed is related to the emulsified asphalts viscosity. For those materialswhose viscosity in Saybolt Furol seconds as determined by Test Method D7496 is 100
25、s or less at 25C,25 C, perform the testat ambient temperature. For those materials whose viscosity is more than 100 s at 25C25 C and those whose viscosity is specifiedat 50C,50 C, use a test temperature of 50 6 3C.3 C.7.2 Determine the mass of the sieve and pan to the nearest 0.1 g and record this m
26、ass as “A”.“A.” Wet the wire cloth withnonionic surfactant solution.7.3 Determine the mass of the sample container containing the emulsified asphalt to 0.1 g. Record this mass as “C”. Pour8001000 “C.” Pour 800 to 1000 g of the emulsified asphalt through the sieve (if the sample container contains 80
27、01000 800 to1000 g of sample, pour the entire contents). Determine the mass of the sample container previously containing the emulsifiedasphalt to 0.1 g. Record this mass as “D”.“D.” Wash the residue on the sieve with distilled water or deionized water until thewashings run clear.7.4 Place the pan u
28、nder the sieve and heat for 2 h in a 110 6 5C5 C drying oven. Cool in a desiccator. Determine the massof the sieve, pan, and residue to the nearest 0.1g.0.1 g. Record this mass as “B”.“B.”8. Calculation8.1 Calculate the percentage of sample retained on the sieve as follows:Oversized Particles,%5B 2A
29、/C 2D!#100 (1)where:A = mass of sieve and pan, g,B = mass of sieve, pan, and residue,C = mass of full sample container, g, andD = mass of empty sample container, g.9. Report9.1 Report the percentage by mass of material retained on the sieve (residue).D6933 18210. Precision and Bias10.1 The followin
30、g criteria should be used for judging the acceptability of results (95 % probability):NOTE 3The precision data shown here was determined using 1000 g 1000-g samples.10.1.1 Duplicate results by the same operator should not be considered suspect unless they differ by more than the followingamount:Siev
31、e Test, mass % Repeatability, mass %0 to 0.1 0.0310.1.2 The results submitted by each of two laboratories should not be considered suspect unless they differ by more than thefollowing amount:Sieve Test, mass % Reproducibility, mass %0 to 0.1 0.0810.1.3 Data is based on historical information prior t
32、o ASTM ILS, so no report number can be submitted, because it cannot befound.10.2 The bias of this test method cannot be determined because no material having an accepted reference value is available.11. Keywords11.1 asphalt; asphalt emulsion; cationic emulsified asphalt; emulsified asphalt; oversize
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