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Why is it that it is more dangerous to jump from a certain altitude onto a concrete pavement than onto a loose sandy loom soil?
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Yes , high voltage can be applied on a body but it is dangerous and it can cause certain death of the person.
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There's any number of possibilities. It's important to know how much volume is in a pipe of a certain diameter, for example oil or water pipes. Buildings that use concrete pillars for support will need to know how much concrete to pour in the cylindrical forms. There are many more examples possible.
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Yes. Infrared are currently considered to be the best option to detect gas leaks. They use the absorption of infrared radiation at certain wavelengths to detect dangerous levels of toxic and combustible gases.
Why is a person hit harder when he falls on a concrete floor than he falls on a heap of sand from the same height?
It is because the the person has a certain amount of energy when he is falling. He has to dissipate all of the energy to come to a stop. The amount of energy absorbed by the contact is equal to the Force times the Distance. The sand allows the person to sink into it when he hits it so the sand requires less Force. When the person hits concrete he does not sink in very a very far distance (in fact it is the person that takes most of the deforming) and so it requires a much greater force to absorb the energy.
Why do cracks develop in concrete?
Concrete is strong when compressed but relatively weak and brittle when stretched.If the soil under the pavement is eroded, or expands during freezing, or is lifted enough by tree roots, the pavement will bend and crack on the convex side.When concrete is poured, it warms as it hardens and then contracts slightly as it cools back down. If the poured block is long enough, then it will have enough contact with the Earth so the ends resist such movement, and the block will pull itself apart.Highway pavement has steel mesh or even rebar (reinforcement bars) to resist the tensile (stretching) forces. It can only help to a certain extent. If such a pavement block is long enough, then normal environmental forces will exceed the reinforcement; heating and cooling the pavement, for example.In addition, highway pavement is subject to high pressure from freight trucks and shock waves from high speed traffic. It is also poured in very long continuous sections. If there are not enough (closely spaced) contraction joints to attract inevitable cracking, then they will occur between contraction joints at random.Answer:Due to temperature stresses during hydration process, longitudinal and transverse cracks develop on concrete pavements.- K @ $ !civil engineering - GITAM UNIVERSITY
Why do cracks develop in concrete pavements?
Concrete is strong when compressed but relatively weak and brittle when stretched.If the soil under the pavement is eroded, or expands during freezing, or is lifted enough by tree roots, the pavement will bend and crack on the convex side.When concrete is poured, it warms as it hardens and then contracts slightly as it cools back down. If the poured block is long enough, then it will have enough contact with the Earth so the ends resist such movement, and the block will pull itself apart.Highway pavement has steel mesh or even rebar (reinforcement bars) to resist the tensile (stretching) forces. It can only help to a certain extent. If such a pavement block is long enough, then normal environmental forces will exceed the reinforcement; heating and cooling the pavement, for example.In addition, highway pavement is subject to high pressure from freight trucks and shock waves from high speed traffic. It is also poured in very long continuous sections. If there are not enough (closely spaced) contraction joints to attract inevitable cracking, then they will occur between contraction joints at random.Answer:Due to temperature stresses during hydration process, longitudinal and transverse cracks develop on concrete pavements.- K @ $ !civil engineering - GITAM UNIVERSITY
What is distress in concrete?
The cracks in concrete and its inability to support certain structures is what is called distress in concrete.
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certain things on the pavement such as oil and other objects will run in to water sources and they arent good for the water causing pollution
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Concrete skills are a skill you preform on a certain task.
What is concrete testing equipment actually testing?
Concrete testing equipment is testing for consistency within a given batch of concrete. Concrete needs to be a certain consistency in order to flow out of the trucks and into the space correctly. It also needs to have a certain consistency in order to set properly.
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Height of an object above sea level?
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