1、Designation: D6935 11D6935 17Standard 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 revisi
2、on. 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 to identify or classify a slow setting, slow-setting, SS or CSS, typeof emu
3、lsified asphalt.1.2 The values stated in SI units are to be regarded as standard. No other units of measure are included in this standard.1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes(excluding those in tables and figures)
4、shall not be considered as requirements for the standard.1.4 This test method standard does not purport to address all of the safety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appropriate safety safety, health, and healthenvironmental
5、 practices anddetermine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides a
6、nd Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C115 Test Method for Fineness of Portland Cement by the TurbidimeterC150 Specification for Portland CementE11 Specification for Woven Wire Test Sieve Cloth
7、and Test SievesD6934 Test Method for Residue by Evaporation of Emulsified AsphaltD6997 Test Method for Distillation of Emulsified AsphaltE11 Specification for Woven Wire Test Sieve Cloth and Test Sieves3. Significance and Use3.1 The result of this test method indicates the ability of a slow setting
8、slow-setting emulsified asphalt to mix with a finelydivided, high surface area high-surface-area material (high early strength, Type III, portland cement) without breaking theemulsified asphalt.4. Sample Conditioning for Testing4.1 All emulsified asphalts shall be properly stirred to achieve homogen
9、eity 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 ho
10、mogeneity.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 1Emulsified asphalts with viscosity testing requirements of 25C25 C may be heated and stirred as specified in 4.2, if
11、necessary. In the eventthe 4.2 method is used, the sample should be cooled to 25 6 3C3 C before testing.1 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 app
12、roved June 1, 2011Oct. 1, 2017. Published July 2011October 2017. Originally approved in 2004. Last previous edition approved in 20042011 asD6935D6935 11.04. DOI: 10.1520/D6935-11.10.1520/D6935-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at
13、serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the 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 versi
14、on. Becauseit may not be technically possible to adequately depict all changes accurately, 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 Internationa
15、l, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Apparatus5.1 SievesaA 180-m sieve and a 1.40-mm sieve with a diameter of approximately 75 mm, made of wire cloth conformingto Specification E11.5.2 PanaA tin box cover or shallow metal pan of appropriate size t
16、o fit over the bottom of the standard sieve.5.3 Mixing BowlaA round-bottom metal dish or a kitchen saucepan of approximately 500-mL capacity.5.4 Stirring RodaA metal rod with rounded ends, approximately 10 mm in diameter.5.5 GraduateaA 100-mL graduated cylinder.5.6 Balance, capable of weighing 1000
17、g to the nearest 0.1 g .0.1 g.5.7 OvencapableCapable of maintaining a temperature of 163 6 3C.3 C.5.8 ThermometeraA thermometric device capable of measuring the temperature of the oven and the emulsified asphalt towithin 1C.1 C.6. Reagents and Materials6.1 Cementhigh-early-strengthHigh-early-strengt
18、h portland cement conforming to the requirements for Type III portlandcement in Specification C150 and having a minimum specific surface area of 1900 cm2/g, as measured by Test Method C115,Standard Test Method for Fineness of Portland Cement by the Turbidimeter7. Procedure7.1 Dilute the emulsified a
19、sphalt with distilled or deionized water to a residue of 55 %, as determined by distillation (TestMethod D6997) or by evaporation for 3 h at 163 6 3C.3 C. (Test Method D6934). Calculate the amount of water to be addedto the emulsified asphalt by using the equation:%Water5100255%Residue!x 100# (1)%Wa
20、ter5100255%Residue! 3 100# (1)7.2 Sieve a portion of the cement through the 180-m sieve. Weigh 50.0 6 0.1 g of the cement passing the 180-m sieve intothe metal dish or saucepan.7.3 Bring the ingredients and apparatus to a temperature of approximately 25C25 C before mixing.Add 100 mLof the dilutedemu
21、lsified asphalt to the cement and stir the mixture at once with the metal rod, using a circular motion at a rate of 60 revolutionsper minute, for 1 min. At the end of the 1-min mixing period, add approximately 150 mL of distilled or deionized water, andcontinue the stirring for an additional 3 min.
22、3 min.NOTE 2Rinsing the sample cylinder with three portions of approximately 50 mL of distilled or deionized water is an acceptable procedure foraccomplishing this step.7.4 Determine the mass of the 1.40-mm sieve and pan to the nearest 0.1 g, and record the weight.7.5 Pour the mixture through the 1.
23、40-mm sieve. Use repeated washings to completely remove material from the mixing bowland pour these washings over the sieve. Rinse the sieve using distilled or deionized water poured from a height of approximately150 mm until the rinse water is clear.7.6 Place the sieve in the pan and heat at 163 6
24、3C3 C for 1 h. 1 h. Allow the sieve and pan to cool, and then weigh. Repeatthe heating and weighing until successive weights differ by no more than 0.1 g.8. Calculation8.1 Calculate the mass of sample retained on the sieve and pan as follows:mass retained5B 2A (2)where:A = mass of sieve and pan, g,
25、andB = mass of sieve, pan, and residue, g.9. Report9.1 Report the mass, in grams, of the material retained on the sieve and in the pan as the percentage of break in the test.10. Precision and Bias10.1 The following criteria should be used for judging the acceptability of results (95 % probability):1
26、0.1.1 Duplicate results by the same operator should not be considered suspect unless they differ by more than the followingamount:D6935 172Cement Mixing, mass % Repeatability, mass %0 to 2 0.210.1.2 The results submitted by each of two laboratories should not be considered suspect unless they differ
27、 by more than thefollowing amount:Cement Mixing, mass % Reproducibility, mass %0 to 2 0.410.2 The bias of this test method cannot be determined because no material having an accepted reference value is available.11. Keywords11.1 asphalt; emulsified asphalt; asphalt emulsion; cationic emulsified asph
28、alt; cementcement; emulsified asphaltASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the ri
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