ASTM D4552/D4552M-10(2016)e1
(Practice)Standard Practice for Classifying Hot-Mix Recycling Agents
Standard Practice for Classifying Hot-Mix Recycling Agents
SIGNIFICANCE AND USE
3.1 Recycling of deteriorated asphalt pavements is being used with increasing frequency for its economy and benefit of conserving raw materials. The objective of recycling is to reuse the two ingredients of asphalt concrete-aggregate and asphalt binder and to restore the desired properties to the mixture. Recycling is carried out hot or cold, depending on the condition of the deteriorated pavement, construction procedure, availability of equipment, and cost. This practice is for classifying recycling agents to be used in hot recycling.
SCOPE
1.1 This practice covers a standardized method whereby petroleum product additives to be used in hot recycling of asphalt concrete can be identified. The products are classified by viscosity in mm2/s measured at 60 °C [140 °F]. This practice does not apply to emulsified materials.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the 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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´1
Designation: D4552/D4552M − 10 (Reapproved 2016)
Standard Practice for
Classifying Hot-Mix Recycling Agents
This standard is issued under the fixed designation D4552/D4552M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—The words ‘asphalt’ and ‘asphalt cement’ were changed editorially to ‘asphalt binder’ in December 2016.
1. Scope D2007 Test Method for Characteristic Groups in Rubber
Extender and Processing Oils and Other Petroleum-
1.1 This practice covers a standardized method whereby
Derived Oils by the Clay-Gel Absorption Chromato-
petroleum product additives to be used in hot recycling of
graphic Method
asphalt concrete can be identified. The products are classified
D2170 Test Method for Kinematic Viscosity of Asphalts
by viscosity in mm /s measured at 60 °C [140 °F]. This
(Bitumens)
practice does not apply to emulsified materials.
D2171 Test Method for Viscosity of Asphalts by Vacuum
1.2 The values stated in either SI units or inch-pound units
Capillary Viscometer
are to be regarded separately as standard. The values stated in
D2872 Test Method for Effect of Heat and Air on a Moving
each system may not be exact equivalents; therefore, each
Film of Asphalt (Rolling Thin-Film Oven Test)
system shall be used independently of the other. Combining
D3381 Specification for Viscosity-Graded Asphalt Cement
values from the two systems may result in nonconformance
for Use in Pavement Construction
with the standard.
1.3 This standard does not purport to address all of the
3. Significance and Use
safety concerns, if any, associated with its use. It is the
3.1 Recycling of deteriorated asphalt pavements is being
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- used with increasing frequency for its economy and benefit of
bility of regulatory limitations prior to use. conservingrawmaterials.Theobjectiveofrecyclingistoreuse
the two ingredients of asphalt concrete-aggregate and asphalt
2. Referenced Documents
binder and to restore the desired properties to the mixture.
2.1 ASTM Standards: Recycling is carried out hot or cold, depending on the
D70 Test Method for Density of Semi-Solid Bituminous
condition of the deteriorated pavement, construction
Materials (Pycnometer Method) procedure, availability of equipment, and cost. This practice is
D92 Test Method for Flash and Fire Points by Cleveland
for classifying recycling agents to be used in hot recycling.
Open Cup Tester
D140 Practice for Sampling Bituminous Materials
4. Classification
D946 Specification for Penetration-Graded Asphalt Cement
4.1 Thispracticedescribesrecyclingagents(RA)asbelong-
for Use in Pavement Construction
ing to one of the following six groups: RA1, RA5, RA25, RA
D1298 Test Method for Density, Relative Density, or API
75, RA 250, or RA 500, as shown in Table 1. The viscosity
Gravity of Crude Petroleum and Liquid Petroleum Prod-
ranges are designed to avoid overlap and to provide sufficient
ucts by Hydrometer Method
flexibility to satisfy a wide range of mix proportions. Other
D1754 Test Method for Effects of Heat andAir onAsphaltic
properties specified include flash point (handling), weight
Materials (Thin-Film Oven Test)
percent of saturates (compatibility), selected properties of the
RTF or TF oven residue (durability), and specific gravity.
This practice is under the jurisdiction of ASTM Committee D04 on Road and
Paving Materials and is the direct responsibility of Subcommittee D04.40 on
4.2 The choice of RAgrade will depend on the amount and
Asphalt Specifications.
hardnessoftheasphaltbinderintheagedpavement.Ingeneral,
Current edition approved Dec. 1, 2016. Published December 2016. Originally
the lower viscosity RA types can be used
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D4552/D4552M − 10 D4552/D4552M − 10 (Reapproved 2016)
Standard Practice for
Classifying Hot-Mix Recycling Agents
This standard is issued under the fixed designation D4552/D4552M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—The words ‘asphalt’ and ‘asphalt cement’ were changed editorially to ‘asphalt binder’ in December 2016.
1. Scope
1.1 This practice covers a standardized method whereby petroleum product additives to be used in hot recycling of asphalt
concrete can be identified. The products are classified by viscosity in mm /s measured at 60°C [140°F].60 °C [140 °F]. This
practice does not apply to emulsified materials.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformancenonconformance with the 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.
2. Referenced Documents
2.1 ASTM Standards:
D70 Test Method for Density of Semi-Solid Bituminous Materials (Pycnometer Method)
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D140 Practice for Sampling Bituminous Materials
D946 Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by
Hydrometer Method
D1754 Test Method for Effects of Heat and Air on Asphaltic Materials (Thin-Film Oven Test)
D2007 Test Method for Characteristic Groups in Rubber Extender and Processing Oils and Other Petroleum-Derived Oils by the
Clay-Gel Absorption Chromatographic Method
D2170 Test Method for Kinematic Viscosity of Asphalts (Bitumens)
D2171 Test Method for Viscosity of Asphalts by Vacuum Capillary Viscometer
D2872 Test Method for Effect of Heat and Air on a Moving Film of Asphalt (Rolling Thin-Film Oven Test)
D3381 Specification for Viscosity-Graded Asphalt Cement for Use in Pavement Construction
3. Significance and Use
3.1 Recycling of deteriorated asphalt pavements is being used with increasing frequency for its economy and benefit of
conserving raw materials. The objective of recycling is to reuse the two ingredients of asphalt concrete-aggregate and asphalt
binder and to restore the desired properties to the mixture. Recycling is carried out hot or cold, depending on the condition of the
deteriorated pavement, construction procedure, availability of equipment, and cost. This practice is for classifying recycling agents
to be used in hot recycling.
4. Classification
4.1 This practice describes recycling agents (RA) as belonging to one of the following six groups: RA 1, RA 5, RA 25, RA 75,
RA 250, or RA 500, as shown in Table 1. The viscosity ranges are designed to avoid overlap and to provide sufficient flexibility
This practice is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.40 on Asphalt
Specifications.
Current edition approved June 15, 2010Dec. 1, 2016. Published July 2010December 2016. Originally approved in 1986. Last previous edition approved in 20042010 as
D4552D4552/D4552M – 10.–92 (2004). DOI: 10.1520/D4552_D4552M-10.10.1520/D4552_D4552M-10R16E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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