ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 6

Interpreting the Physical Properties of a Clay Using Microanalysis Techniques

McManis, KL
Chairman and associate professor of civil engineering, University of New Orleans, New Orleans, LA

Ferrell, RE
Professor and chairman, Louisiana State University, Baton Rouge, LA

Arman, A
Professor of civil engineering and associate dean of college of engineering, Louisiana State University, Baton Rouge, LA

Abstract

A microanalysis with the scanning electron microscope and energy dispersive X-ray microprobe (SEM-EDS) is used to explain the apparent brittle failure and sensitivity of a clay soil. The electron micrographs produced show concentrations of pyrite crystals interrupting the parallel bedding of the clay particles. These fabric modifiers significantly influence the failure mechanisms of the soil. The SEM-EDS microanalysis provides details of the fabric configuration and distribution of chemical species and their association with the soil fabric.

Keywords:
stress, strain, sensitivity, deformation modulus, microanalysis, disturbance, fabric modifiers, soil microstructure, strength, element distribution, cementation

Paper ID: GTJ10833J
DOI: 10.1520/GTJ10833J
ASTM International is a member of CrossRef.