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Abbreviations:

AOP-Areas of Practice

LAR-Laws & Rules

P.E.-Professional Engineers

 

Explore all PDH CEU CPC CPD and Webinars for Engineers

Durability of Geosynthetics for Highway Applications

Course No. T-1002

Credit: 1 PDH

Course Fee: $28.95 Purchase course

Subject Matter Expert: Jeffrey Havelin, P.E., BS CE

Overview

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, which includes a summary of four previously published reports on this topic.

 

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • Oxidative incubations
  • High-performance Liquid Chromatography (HPLC)
  • Hydrolysis incubations
  • Scanning electron microscopy (SEM)
  • Measurement of molecular weight (or intrinsic viscosity) and Carboxyl End Group (CEG)
  • Stress cracking is a potential mode of failure

 

Course

Click on the following link to the PDF document to review the course material before taking the quiz for credit.

Durability of Geosynthetics for Highway Applications

 

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