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Federal Highway Administration Research and Technology
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This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-RD-01-165
Date: March 2002

Figure 3-73

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Flowchart for identifying infilling materials in cracks and voids as applied to CA-058-141. This flowchart from Volume 2 of the guidelines shows how to use petrographic or SEM analysis to determine the cause of an MRD. For the Boron, California site, staining techniques and both scanning electron and petrographic microscope analysis were used and the following conditions were found to be present, which led to the establishment of a cause and effect for each MRD:


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