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Standard Practice for Identifying Cationic Emulsified AsphaltsTranslate name
STANDARD published on 1.10.2017
Designation standards: ASTM D7402-09(2017)
Publication date standards: 1.10.2017
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
asphalt emulsion, cationic emulsified asphalt, emulsified asphalt, emulsion, particle charge,, ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products), 91.100.50 (Binders. Sealing materials), 93.080.20 (Road construction materials)
|Significance and Use|
3.1 Cationic emulsified asphalts are identified by the migration of the particles to a negatively charged electrode (cathode) by means of a direct current. Aggregates and sands used in conjunction with emulsified asphalts are often predominantly either negatively or positively charged. Emulsified asphalts should be selected to be compatible with the available aggregate or sand. This practice will aid in identifying a cationic type of emulsified asphalt as defined by Specification .
1.1 This practice is used to identify cationic emulsified asphalts. Positively charged particles are classified as cationic. Emulsified asphalts that don’t register a positive charge may also be classified as cationic slow-setting if they coat a specific type of negatively charged silica sand.
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 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
|2. Referenced Documents|
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