Secondary roads in North Carolina are being improved by 6 in. soil cement base followed by bituminous surface treatment or addition of top of sand asphalt; equipment includes new machine that mixes soil and cement for full depth of base in single passage; cost of pavement varies from $0.95 to $1.41 per sq yd.
Secondary roads paved with soil-cement
Eng News-Rec
Engineering News-Record ; 138 , n 14
1947
4 pages
Aufsatz (Zeitschrift)
Englisch
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