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ASTM D5505-14(R2020) pdf free download

ASTM D5505-14(R2020) pdf free download.Standard Practice for Classifying Emulsified Recycling Agents
1. Scope
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 mate- rials for recycling shall not be limited to this practice. For instance, the emulsified asphalts specified in Specifications D977 and D2397/D2397M 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 establish appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Significance and Use
3.1 Recycling of deteriorated asphalt pavements is being used as a routine method of maintenance and rehabilitation. Utilization ofexisting materials as the major component ofthis procedure may yield benefits in quality, economy, and preser- vation 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 Table 1. The range of recycling methods demands several emulsified recycling agents. The groups should provide ad- equate freedom of selection for most recycling methods. 3.2.1 ER-1 is a material whose main function is to rejuve- nate 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 rejuvena- tors 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.
4. Properties
4.1 All emulsified recycling agents shall be homogenous, free flowing at pumping temperature, and shall conform to the requirements of Table 1. 4.2 Emulsified recycling agent residue should be combined with aged asphalts and evaluated to determine proper ER selection and to determine quantity of treatment. Resulting asphalt binder properties shall be judged suitable for the intended use.
5. Sampling
5.1 Carry out sampling in accordance with Practice D140/ D140M. 5.2 Store samples in new, clean, airtight sealed containers as specified in Practice D140/D140M at a temperature not less than 4 °C until tested.
6. Test Methods
6.1 The properties of the emulsified recycling agents given in Table 1 shall be determined in accordance with the following ASTM test methods: 6.1.1 Viscosity—Test Method D7496. 6.1.2 Sieve—Test Method D6933. 6.1.3 Storage Stability—Test Method D6930. 6.1.4 Residue by Distillation—Test Method D6997. 6.1.5 Specific Gravity—Test Method D6937. 6.1.6 Compatibility—Practice D7402. 6.1.7 Tests on Residue from Distillation: Kinematic Viscosity—Test Method D2170/D2170M. Saturates—Test Method D4124. Solubility—Test Method D2042 or D7553. RTFO Conditioning—Test Method D2872. Tests on RTFO Residue: (1) Penetration—Test Method D5/D5M. (2) Mass Change—Test Method D2872.

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