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本文(ASTM D6999-2004 Standard Practice for Miscibility of Emulsified Asphalts《乳化沥青的可拌和性的标准实施规程》.pdf)为本站会员(appealoxygen216)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM D6999-2004 Standard Practice for Miscibility of Emulsified Asphalts《乳化沥青的可拌和性的标准实施规程》.pdf

1、Designation: D 6999 04Standard Practice forMiscibility of Emulsified Asphalts1This standard is issued under the fixed designation D 6999; 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 parent

2、heses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers all medium and slow-setting emul-sified asphalts. It is not applicable to the rapid-setting types.1.2 This practice does not purp

3、ort 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:2E 1

4、 Specification for ASTM Thermometers3. Sample Conditioning for Testing3.1 All emulsified asphalts shall be properly stirred toachieve homogeneity.3.2 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

5、. The container shouldbe vented to relieve pressure. After the sample reaches 50 63C, stir the sample to achieve homogeneity.3.3 Emulsified asphalts with viscosity testing requirementsof 25C should be mixed or stirred at 25 6 3C in the originalsample container to achieve homogeneity.NOTE 1Emulsified

6、 asphalts with viscosity testing requirements of25C may be heated and stirred as specified in 3.2, if necessary. In theevent the 3.2 method is used, the sample should be cooled to 25 6 3C.4. Significance and Use4.1 It is sometimes desirable to dilute an emulsified asphaltin the field with water. Thi

7、s practice is designed to ascertain ifthis may be done safely without breaking the emulsifiedasphalt.NOTE 2Water supplies available in some areas contain high levels ofdissolved salts and other minerals which coalesce emulsified asphalts to agreater degree than distilled or deionized water. It is re

8、commended that theuser evaluate potential local water sources using this practice beforeattempting a field dilution.5. Apparatus and Materials5.1 Beakerglass, 400 mL capacity5.2 Graduated cylinder100 mL capacity5.3 Graduated cylinder200 mL capacity5.4 Distilled or deionized water5.5 ThermometerASTM

9、17C conforming to the require-ments of Specification E 1, or any other thermometric device ofequal accuracy.6. Procedure6.1 Place approximately 50 mL of the 25 + 2C emulsifiedasphalt into a 400-mL glass beaker.6.2 Gradually add 150 mL of 25 + 2C distilled or deionizedwater, with constant stirring. A

10、llow the mixture to stand for 2h; then examine it for any appreciable coagulation of theasphalt.7. Keywords7.1 asphalt; asphalt emulsion; cationic emulsified asphalt;emulsified asphalt; miscibility1This practice is under the jurisdiction of ASTM Committee D04 on Road andPaving Materials and is the d

11、irect responsibility of Subcommittee D04.42 onEmulsified Asphalt Tests.Current edition approved Aug. 1, 2004. Published August 2004.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume inform

12、ation, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any

13、item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical c

14、ommittee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at

15、a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Dr

16、ive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D6999042

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