Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59
inform@normdocs.ru

ASTM D7402-09

Заменен
Standard Practice for Identifying Cationic Emulsified Asphalts — 4 стр.
Значение и использование

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.

Область применения

1.1 This practice is used to identify cationic emulsified asphalts. Positively charged particles are classified as cationic. Emulsified asphalts that dont 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.

ICS
91.100.50 Binders. Including geomembranes, asphalts for buildings, etc. / Связующие вещества. Уплотнители. Включая геомембраны, строительный асфальт и т.д.
75.140 Waxes, bituminous materials and other petroleum products / Парафины, битумные материалы и другие нефтепродукты
93.080.20 Road. Including asphalts, road pavements, etc. / Дорожно-строительные материалы. Включая асфальт, дорожные покрытия и т.д.
Сборник ASTM
04.03 Road and Paving Materials; Vehicle–Pavement Systems / Материалы для покрытия и мощения дорог, Дорожно-транспортные системы
Тематика
Road & Paving