Read Online Public Roads, Vol. 14: A Journal of Highway Research; March 1933 (Classic Reprint) - United States Bureau of Public Roads | ePub Online

Download Public Roads, Vol. 14: A Journal of Highway Research; March 1933 (Classic Reprint) - United States Bureau of Public Roads | ePub

Excerpt from Public Roads, Vol. 14: A Journal of Highway Research; March 1933The bases which were used on the sections discussed in this report were, with one exception, originally constructed to serve as topsoil, sand-clay, or sand-clay gravel roads. The exception was a base of sand-clay gravel built to be surface-treated immediately.The topsoil and sand-clay used for

Title : Public Roads, Vol. 14: A Journal of Highway Research; March 1933 (Classic Reprint)
Author : United States Bureau of Public Roads
Language : en
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Type : PDF, ePub, Kindle
Uploaded : Apr 06, 2021

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