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Significance and Use
3.1 Recycling of deteriorated asphalt pavements is being used as a routine method of maintenance and rehabilitation. Utilization of existing materials as the major component of this procedure may yield benefits in quality, economy, and preservation of natural resources. Recycling takes many forms; hot, cold, in-situ, central plant and surface. This practice may be used for various recycling methods.
3.2 This practice describes emulsified recycling (ER) agents as belonging to three groups; ER-1, ER-2, and ER-3 as shown in . The range of recycling methods demands several emulsified recycling agents. The groups should provide adequate freedom of selection for most recycling methods.
3.2.1 ER-1 is a material whose main function is to rejuvenate aged asphalt. The material is a petroleum derivative, and highly compatible with asphalts. It is classified by viscosity.
3.2.2 ER-2 and ER-3 are materials that combine rejuvenators and asphalt components in one emulsified asphalt. These soft residues are classified by low temperature penetration after aging. They are typically used in recycling where there is an increased demand for asphalt as when new aggregates are added, or where immediate cohesiveness is desired.
3.3 The choice of ER will be determined by the properties of the asphalt binder in the aged pavement, the methods of recycling planned, the amount, if any, of new aggregates, and other design needs.
1.1 This practice identifies emulsified petroleum products that may be used as recycling agents in recycled mixes. These materials are classified by viscosity or by low temperature penetration after aging.
1.2 This practice addresses emulsified materials designed specifically for use in recycling. The use of emulsified materials for recycling shall not be limited to this practice. For instance, the emulsified asphalts specified in Specifications and may be used.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D5 Test Method for Penetration of Bituminous Materials
D140 Practice for Sampling Bituminous Materials
D977 Specification for Emulsified Asphalt
D1754 Test Method for Effects of Heat and Air on Asphaltic Materials (Thin-Film Oven Test)
D2042 Test Method for Solubility of Asphalt Materials in Trichloroethylene
D2170 Test Method for Kinematic Viscosity of Asphalts (Bitumens)
D2397 Specification for Cationic Emulsified Asphalt
D2872 Test Method for Effect of Heat and Air on a Moving Film of Asphalt (Rolling Thin-Film Oven Test)
D4124 Test Method for Separation of Asphalt into Four Fractions
D6930 Test Method for Settlement and Storage Stability of Emulsified Asphalts
D6933 Test Method for Oversized Particles in Emulsified Asphalts (Sieve Test)
D6937 Test Method for Determining Density of Emulsified Asphalt
D6997 Test Method for Distillation of Emulsified Asphalt
D7402 Practice for Identifying Cationic Emulsified Asphalts
D7496 Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol Viscometer
D7553 Test Method for Solubility of Asphalt Materials in N-Propyl Bromide
ICS Number Code 75.080 (Petroleum products in general); 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code 30121601(Asphalt)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D5505-14, Standard Practice for Classifying Emulsified Recycling Agents, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top