Print this page Reclaimed Asphalt Pavement (RAP)
Vincent D. Reynolds, MBA, P.E.
Course Outline
Reclaimed asphalt
pavement is a rather new and versatile process that will give the designer more
options in his or her design of pavements or embankments. This course gives
information on the gradation, shear strength, permeability and consolidation
characteristics of RAP to name a few. The course materials are based solely
on the website of the FHWA's Turner - Fairbank Highway Research Center and their
RAP web page. This course includes a multiple-choice quiz at the end, which
is designed to enhance the understanding of course materials.
This course includes a multiple-choice quiz at the end, which is designed to
enhance the understanding of the course materials.
Learning Objective
At the conclusion of this course, the student would have learned the following:
- The origin of RAP;
- Have a general understanding of Reclaimed Asphalt pavement (RAP) and its uses in roadway design;
- Understand the processes used to produce RAP;
- Know the percentage of RAP required to produce a sound pavement design;
- Understand how the moisture content correlates to pavement strength when using RAP;
- The best way to Stockpile RAP;
- Why the nuclear gauge moisture readout is generally not correct when testing RAP;
- The difference between Cold in-place recycling and hot in-place recycling;
- The quality control of RAP;
- The Jurisdictions and States that have generally used RAP in its roadway projects;
- Proper Milling depths to rehabilitate pavements using RAP; and
- The typical
unit weight of RAP
Intended Audience and Benefit
This course is
intended for those wanting an understanding of the basics of Reclaimed Asphalt
Pavement (RAP). This course is designed so that the intended audience will benefit
immediately with the information to make intelligent decisions related to using
RAP in their pavement designs.
Course
Introduction
Reclaimed Asphalt
Pavement (RAP) is pavement that has been removed and reprocessed. RAP consists
of well-graded aggregates coated with asphalt. There are several different uses
for RAP. This course will explain those uses and how they are used in roadway
design as well as some very interesting geotechnical, and earth fill applications.
Course Content
The purpose of this course will be to provide information on applying knowledge of RAP to be a part of the engineering design. You will be directed to the website of the FHWA's Turner - Fairbank Highway Research Center and their RAP web page to study the different characteristics and uses for RAP.
The links to the Reclaimed Asphalt Pavement (RAP) course materials are as
follows:
Asphalt Concrete (Hot Recycling)
Asphalt
Concrete (Cold Recycling)
You need to open
or download the above course documents to study the course.
Course Summary
Reclaimed Asphalt
Pavement (RAP) could give the engineer the opportunities to make a structurally
sound design with reclaimed and/or reprocessed resources. This recycling technique
could make a more profitable project and indirectly profit environmentally in
its use. Good engineering judgment is always paramount to any design. Utilizing
good engineering judgment and the knowledge gained in this course will allow
the engineer to design safe and efficient roadways.
Related Links
For additional technical information related to this subject, please visit the following websites:
http://mutcd.fhwa.dot.gov/
http://www.tfhrc.gov/
http://www.aashto.com
http://www.ite.com
Quiz
Once you finish studying the above course content, you need to take a quiz to obtain the PDH credits.
DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDH Center or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered architect and/or professional engineer/surveyor. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.
