Road / Bridge Control Joints
Control joints (often confused with expansion joints) are cut into the concrete or asphalt, and are different from expansion joints as shown in the photo. The joints are cut into the structure at regular intervals allow cracking to occur in a controlled fashion. Road control joints can be sealed with hot tar, cold sealant (such as silicone), or compression sealant (such as rubber).
Read more about this topic: Expansion Joint
Famous quotes containing the words road, bridge, control and/or joints:
“Much as I own I owe
The passers of the past
Because their to and fro
Has cut this road to last,
I owe them more today
Because they’ve gone away....”
—Robert Frost (1874–1963)
“Crime seems to change character when it crosses a bridge or a tunnel. In the city, crime is taken as emblematic of class and race. In the suburbs, though, it’s intimate and psychological—resistant to generalization, a mystery of the individual soul.”
—Barbara Ehrenreich (b. 1941)
“If someone does something we disapprove of, we regard him as bad if we believe we can deter him from persisting in his conduct, but we regard him as mad if we believe we cannot. In either case, the crucial issue is our control of the other: the more we lose control over him, and the more he assumes control over himself, the more, in case of conflict, we are likely to consider him mad rather than just bad.”
—Thomas Szasz (b. 1920)
“To round that shell’s elaborate whorl,
Adorning every secret track
With the delicate mother-of-pearl,
Made the joints of Heaven crack....”
—William Butler Yeats (1865–1939)