Concrete Roads
and Their Construction
År: 1920
Serie: Concrete Series
Forlag: Concrete Publications Limited
Sted: London
Sider: 197
UDK: 625.8 Con-gl.
Being a Description of the concrete Roads in the United Kingdom, together with a Summary of the Experience in this Form of Construction gained in Australia, Canada, New Zealand and the United States of America.
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166
CONCRETE ROADS
the strike board for Smoothing the concrete surface. Roads 30 ft.
wide are struck or screeded in three strips, and when screecling
the crown or centre strip, each end of the board rests on two fixed
Fig. 116.—Road-laying machine used for concrete by the Port of
London Authority.
angles carried transversely across the base of the “ tent ” and parallel
to the longitudinal axis of the road. These angles are easily adjusted
Fig. 117.—Reinforced concrete road in course of construction, showing
the Road-laying Machine in use.
and fixed to the correct height to enable the board automatically
to strike off the surface to the correct level. The strips of road
on each side are treated in a similar manner, with the exception that