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New method used to build highway in Washington's Rain Forest
New highway section beginning at Hump-tulips is 22 ft wide with 3 in. asphaltic concrete base and two 2 in. thick asphalt applications on top; this 3 in. base is mat of 1 1/4 in. max size aggregate and 85-100 penetration asphalt cement; use of asphalt base makes it possible to overcome deteriorating effect of poor aggregates available; base prevents capillary moisture and water vapor from gathering in pavement.
New method used to build highway in Washington's Rain Forest
New highway section beginning at Hump-tulips is 22 ft wide with 3 in. asphaltic concrete base and two 2 in. thick asphalt applications on top; this 3 in. base is mat of 1 1/4 in. max size aggregate and 85-100 penetration asphalt cement; use of asphalt base makes it possible to overcome deteriorating effect of poor aggregates available; base prevents capillary moisture and water vapor from gathering in pavement.
New method used to build highway in Washington's Rain Forest
Pac Bldr Engr
Bugge, W.A. (author)
1960
2 pages
Article (Journal)
English
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