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How tar is 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.


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.


What encouraged industrialization to expand the eastern part of the United states to the west?

rail roads


Why do roads expand and contract?

Roads expand and contract due to changes in temperature. When temperatures increase, the road material expands, and when temperatures decrease, the road material contracts. This continuous expansion and contraction can put stress on the road surface, leading to cracks and damage over time.


What form of energy causes cracks in roads?

Thermal energy from the sun causes roads to expand and contract, leading to stress on the road surface. This stress, combined with regular wear and tear from vehicles, can eventually cause cracks to form in roads.


Why concrete roads have gaps?

because it expands and contracts depending on the temperature..the gaps allow the concrete some space to expand so that it will not crack..


Why do roads over bridges have small gaps in them?

To allow them to expand and contract with heat and cold. Without those, the road would end up buckling.


What is one example of a human made feature that a geographer might study?

One example of a human-made feature that a geographer might study is urban sprawl. Geographers would be interested in examining how cities expand over time, the factors driving this expansion, and the impact it has on the environment and society.


Why are roads called roads?

Because they are roads.


What are some of the way cities are dealing with urban sprawl?

As technology continues to improve, cities are continuing to grow and expand beyond their original borders. They are creating urban sprawl that is dealt with by increasing the number of roads around a city. The city may also expand their mass transit system to better meet the needs of its citizens.


Why are some roads asphalt and some concrete?

Asphalt is used because primarily because it is cheaper than concrete. Asphalt is also more pliable, and can expand and contract in changing weather. Concrete, however, cannot expand or contract as well, so gaps are placed periodically to ease this tension or compression. Also Asphalt creates less noise than Concrete. it helps me walk better on da ground yasss very much


How was distance marked on Roman roads?

Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.Distance was marked on Roman roads by milestones.