File:America's Highways 1776–1976 - page 223.jpg

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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

Public domain 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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eda3584bc11292477a6f18c6f3914e9ba7d28a04

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current12:31, 9 December 2022Thumbnail for version as of 12:31, 9 December 20221,045 × 665 (438 KB)Sp1nd01Uploaded 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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