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Why are concrete roads laid in sections with a pitch between them?
Wiki User
∙ 10y ago
Because then it has room for moving and shrinking, growing etc
Concrete roads and pavements are laid in sections and a all gap is left between each sections. This is filled either tarmac or rubber compound
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoConcrete, whether in a road or a building expands (gets longer) in hot weather and contracts (gets shorter) in cold weather.
So the builders install an expansion strip every so many feet to allow the concrete to make these small but significant changes in length. If this were not done, the concrete, when warm, would expand, and having nowhere to go, would go up (roads) or out (buildings), thus ruining the road or building.
These expansion joints are filled with pitch, tar, or mastic - they call it different things in different parts of the country - to keep out water. Water would freeze, and cause the same problems.
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Why concrete roads are laid in section with pitch between them?
Concrete, whether in a road or a building expands (gets longer) in hot weather and contracts (gets shorter) in cold weather. So the builders install an expansion strip every so many feet to allow the concrete to make these small but significant changes in length. If this were not done, the concrete, when warm, would expand, and having nowhere to go, would go up (roads) or out (buildings), thus ruining the road or building. These expansion joints are filled with pitch, tar, or mastic - they call it different things in different parts of the country - to keep out water. Water would freeze, and cause the same problems.
Why concrete roads snd floors always made in sections?
To allow for expansion. if it's not done in sections, slabs will crack and chip off in undetermined locations
Why do roads have the gaps between the large pieces of concrete?
They are expansion gaps that allow for the expansion and contraction of the concrete.
Why do concrete roads have gaps between large pieces of concrete?
As the weather varies the concrete expands and contracts. If there were no gaps the concrete would buckle and crack.
What is the property of matter where it changes volume when it changes temperature?
The property of solids in which they enlarge when warmed is thermal expansion. The opposite, shrinking when cooled, is thermal contraction. This property greatly effects how bridges, sidewalks, and concrete roads are made. They all have "expansion gaps," gaps between sections that allow the sections to expand in the heat of summer. Without those, the concrete would break and the bridges would warp and bend.
Are there concrete roads in Washington state?
No the roads are made out of asphalt.
What has the author D R Sharp written?
D. R Sharp has written: 'Concrete roads in Denmark, Western Germany and Holland, their layout, design and construction [by] D.R. Sharp [and] L.S. Blake' -- subject- s -: Concrete Roads, Europe, Roads, Roads, Concrete
What are roman roads made of?
concrete
When is concrete used without metal reinforcement bars?
Concrete are used without reinforcement bars on concrete roads.
What are some things concrete is used for?
Sidewalks and roads.
How did roads aqueducts and concrete contribute to life?
Hhh
Is tar useful in concrete roads?
Because the concrete will expand and the tar will become soft. So the concrete has room to expand. With out cracking.
