Materials Testing Center home page

US Army Corps of Engineers
Materials Testing Center

Petrography and Petrographic Analysis

The MTC houses a variety of instruments to support petrographic analysis of concrete and geomaterials including optical, stereo, and petrographic microscopes, point counting instruments, and image scanning systems. Specialized sample preparation equipment for sectioning, polishing, crushing and grinding is also available to support petrographic and other types of analysis. These systems are used to analyze constituent materials, support research and construction activities, and to conduce forensic and failure analysis of existing infrastructure.

Below are various polishing machines to prep samples for petrographic analysis

image 1
image 2
image 3
image 1
image 2
image 3
image 4
Optical microscope with point counting table for air void and mixture proportion
image 5
Stereo microscope
image 6
Optical microscope
image 4
Optical microscope with point counting table for air void and mixture proportion
image 5
Stereo microscope
image 6
Optical microscope