File:America's Highways 1776–1976 - page 223.jpg
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Summary
| Description |
English: To study the behavior of asphalt in service, an FHWA analyst is using a vacuum distillation technique to remove the bulk of the solvent from solutions of asphalts extracted from pavements. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/229 |
| Author | Federal Highway Administration |
Licensing
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This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. | 
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:31, 9 December 2022 | | 1,045 × 665 (438 KB) | Sp1nd01 | Uploaded a work by Federal Highway Administration from https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/229 with UploadWizard |
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