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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

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 3-9

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Slab 1B stained with sodium cobaltinitrite/rhodamine B from SD-090-019-001. This figure is comprised of two photographs of slab 1B labeled A and B. The slab was stained with sodium cobaltinitrite/rhodamine B. Photograph A is a picture of the entire stained slab. A large crack is visible approximately half way down the slab. Photograph B is a stereo optical micrograph of a reactive rhyolite particle. The particle has a crack running it and reactive materials are visible in the paste surrounding the particle. The figure also contains a table listing the litho types, their volume in milliliters and their volume as a percent of total volume. Volume was determined by water displacement from a sample gathered at a nearby river. The total volume of all of the lithos was 1,479 milliliters. The information in the table is as follows:


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