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Standard Practice for Identifying Cationic Emulsified Asphalts
Automaticky přeložený název:
Standardní praktiky pro identifikace kationtové emulgovaný asfalty
NORMA vydána dne 1.6.2009
Označení normy: ASTM D7402-09
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2009
Kód zboží: NS-38373
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Pojiva. Těsnicí materiály
Materiály pro stavbu silnic
Vosky. Živice. Ostatní ropné produkty
Keywords:
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 | ||||||
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 D 2397. |
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1. Scope | ||||||
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 cotionic 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||
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