Specifications for Construction of Roads and Bridges in National Forests and National Parks, 1941

Published on: 1941
Page Count: 550 pages
Print Type: BOOK
Categories: Bridges
Maturity Rating: NOT_MATURE
Language: en
Embeddable: Yes
PDF Available: No
EPUB Available: No
ISBN-13: ISBN-13 not available
ISBN-10: ISBN-10 not available
... macadam . Asphalt shall be furnished for the seal coat . Asphalt , for macadam , shall be penetration grade 85-100 , 100-120 , or 120–150 conforming to the requirements of A.A.S.H.O. Specification M - 20 or M - 23 . ན ། Tar shall ...

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