Durability of Geosynthetics for Highway Applications
Jeffrey Havelin, P.E.
Various aspects of geosynthetic durability are addressed in this (one-hour) course in order to develop procedures that could be used to predict long-term strength losses of geosynthetics used in highway applications. This information is essential to designers for allowing tensile capacity for geosynthetics used primarily in mechanically stabilized earth (MSE) retaining walls, reinforced soil slopes, and foundation stabilization.
The study was conducted in stages, each stage building on the knowledge previously gained. The main objectives addressed were to: (1) develop testing protocols necessary to quantify any strength reduction due to aging or stress (stress cracking only) mechanisms for polymeric reinforcement materials (geosynthetics), and (2) develop testing protocols for confined stress-strain testing, which could more accurately characterize key engineering properties. The results of the experimental tasks are discussed on the following pages.
This course is
based entirely on publication FHWA-RD-01-050 Durability of Geosynthetics
for Highway Applications, on a summary of four previously published reports
on this topic. This course includes a multiple-choice quiz at the end, which
is designed to enhance the understanding of course materials. You will be quizzed
on the attached document in its entirety.
This course will review the various design aspects of geosynthetic durability used in highway applications.
course is intended for engineers who our involved with geosynthetics for highway,
and possibly other applications of geosynthetics.
Benefit for Attendee
Attendee of this course will be learning about properties of geosynthetics for highway applications.
This course is based entirely on the FHWA-RD-01-050 Durability of Geosynthetics for Highway Applications.
The link to the course materials is as follows:
You need to open or download above document to study this course.
Engineers completing this course will have a good understanding about the testing procedures used to evaluate the geosynthetic materials under various phases of testing, in additional to the new properties and conclusions that were determined during the various tests.