ASTM D4552/D4552M-10
(Practice)Standard Practice for Classifying Hot-Mix Recycling Agents
Standard Practice for Classifying Hot-Mix Recycling Agents
SIGNIFICANCE AND USE
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 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 non-conformance 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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Designation: D4552/D4552M − 10
Standard Practice for
1
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.
1. Scope Extender and Processing Oils and Other Petroleum-
Derived Oils by the Clay-Gel Absorption Chromato-
1.1 This practice covers a standardized method whereby
graphic Method
petroleum product additives to be used in hot recycling of
D2170 Test Method for Kinematic Viscosity of Asphalts
asphalt concrete can be identified. The products are classified
2
(Bitumens)
by viscosity in mm /s measured at 60°C [140°F]. This practice
D2171 Test Method for Viscosity of Asphalts by Vacuum
does not apply to emulsified materials.
Capillary Viscometer
1.2 The values stated in either SI units or inch-pound units
D2872 Test Method for Effect of Heat and Air on a Moving
are to be regarded separately as standard. The values stated in
Film of Asphalt (Rolling Thin-Film Oven Test)
each system may not be exact equivalents; therefore, each
D3381 Specification for Viscosity-Graded Asphalt Cement
system shall be used independently of the other. Combining
for Use in Pavement Construction
values from the two systems may result in non-conformance
with the standard.
3. Significance and Use
1.3 This standard does not purport to address all of the
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-
used with increasing frequency for its economy and benefit of
priate safety and health practices and determine the applica-
conservingrawmaterials.Theobjectiveofrecyclingistoreuse
bility of regulatory limitations prior to use.
the two ingredients of asphalt concrete-aggregate and asphalt
and to restore the desired properties to the mixture. Recycling
2. Referenced Documents
is carried out hot or cold, depending on the condition of the
2
2.1 ASTM Standards:
deteriorated pavement, construction procedure, availability of
D70 Test Method for Density of Semi-Solid Bituminous
equipment, and cost. This practice is for classifying recycling
Materials (Pycnometer Method)
agents to be used in hot recycling.
D92 Test Method for Flash and Fire Points by Cleveland
Open Cup Tester
4. Classification
D140 Practice for Sampling Bituminous Materials
4.1 Thispracticedescribesrecyclingagents(RA)asbelong-
D946 Specification for Penetration-Graded Asphalt Cement
ing to one of the following six groups: RA1, RA5, RA25, RA
for Use in Pavement Construction
D1298 Test Method for Density, Relative Density (Specific 75, RA 250, or RA 500, as shown in Table 1. The viscosity
Gravity), or API Gravity of Crude Petroleum and Liquid
ranges are designed to avoid overlap and to provide sufficient
Petroleum Products 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
D2007 Test Method for Characteristic Groups in Rubber
RTF or TF oven residue (durability), and specific gravity.
4.2 The choice of RAgrade will depend on the amount and
hardness of the asphalt in the aged pavement. In general, the
1
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 lower viscosity RA types can be used to restore aged asphalts
Asphalt Specifications.
ofhighviscosityandviceversa.Additionally,gradesRA1,RA
Current edition approved June 15, 2010. Published July 2010. Originally
5, RA 25, and RA 75 will generally be most appropriate for
approved in 1986. Last previous edition approved in 2004 as D4552–92 (2004).
DOI: 10.1520/D4552_D4552M-10. hot-mix recycling of salvaged asphalt concrete when no more
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
than 30 % virgin aggregate is added, while grades RA250 and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
RA 500 will generally be most appropriate when more than
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 30 % virgin aggregate is incorporated into the mix.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D4552/D4552M − 10
TABLE 1 Physical Properties of Hot-Mix Recycl
...
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.
Designation:D4552–92 (Reapproved 2004) Designation: D4552/D4552M – 10
Standard Practice for
1
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.
1. Scope
1.1This 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 centistokes measured at 140°F (60°C).This practice does not
apply to emulsified materials.
1.2
1.1 This practice covers a standardized method whereby petroleum product additives to be used in hot recycling of asphalt
2
concrete can be identified. The products are classified by viscosity in mm /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 non-conformance 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
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 (Specific Gravity), orAPI 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 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.
1
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 July 1, 2004. Published July 2004. Originally approved in 1986. Last previous edition approved in 1999 as D4552–92 (1999). DOI:
10.1520/D4552-92R04.
Current edition approved June 15, 2010. Published July 2010. Originally approved in 1986. Last previous edition approved in 2004 as D4552–92 (2004). DOI:
10.1520/D4552_D4552M-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D4552/D4552M – 10
4. Classification
4.1 This practice describes recycling agents (RA) as belonging to one of the following six groups: RA1, RA5, RA25, RA75,
RA 250, or RA 500, as shown in Table 1. The viscosity ranges are designed to avoid overlap and to provide sufficient flexibility
to satisfy a wide
...
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