HOME MyTRB CONTACT US DIRECTORY E-NEWSLETTER FOLLOW US RSS


The National Academies

NCHRP Synthesis 20-05/Topic 52-17 [Final (Synthesis)]

Use of Recycling Agents in Asphalt Concrete Mixtures
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: $45,000
Authorization to Begin Work: 5/1/2020 -- estimated
Staff Responsibility: Jo Allen Gause
Research Agency: University of New Hampshire
Principal Investigator: Jo Sias
Effective Date: 10/6/2020
Completion Date: 5/31/2022
Fiscal Year: 2021

Although the use of recycled asphalt materials (RAM) in new asphalt mixtures can reduce the amount of virgin and nonrenewable materials required and increase the rutting resistance of pavements, it may also compromise cracking resistance. To mitigate this issue, asphalt mixtures containing RAM may require the use of a softer binder or recycling agent (RA).

The TRB National Cooperative Highway Research Program's NCHRP Synthesis 586: Use of Recycling Agents in Asphalt Concrete Mixtures documents current state department of transportation (DOT) practices and procedures related to the use of RAs in asphalt mixtures containing RAM.

To create a link to this page, use this URL: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=4993