Greater volumes, reduced time, better placing and freedom of traffic movement have greatly magnified machine operations in road excavation and embankment; reasons for increased grading; equipment progress; compaction of fills; costs of grading.
Machinery revolutionizes highway grading
Eng News-Rec
Engineering News-Record ; 108 , n 1 ; p 10-13
1932
4 pages
Article (Journal)
English
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