University of Virginia Library

CURBS:

I am a strong believer in mountable-type curb 'n gutter. The
curb retains the shoulder, controls drainage on the pavement, and
defines the edge of the pavement. Colored pigment can be added to
the concrete to resemble the color of the local soils; also,
colored aggregates can be selected and the finish exposed to resemble

the local soil. In any case, I prefer concrete with color pigment
added to the mix. Don't use lamp black! It weakens the concrete
and looks ugly. Use inorganic pigments; colors range from black
to buff. Or use an aggregate of proper color...it makes a good
job better.

NOTE: If you are working on defense roadways, be aware of the
requirements for heavy wheel loads. Haunches or grade beams might
be required at expansion joints, especially over soft subgrades.