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Concrete are used without reinforcement bars on concrete roads.

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Q: When is concrete used without metal reinforcement bars?
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What is the purpose of compression reinforcement in beams?

Steel is stronger than concrete. By adding some reinforcement in the compression zone of a beam, it's bending strength can be increased without increasing the size of the beam. The steel increases the compression strength, while the concrete prevents the slender steel bars from buckling.


What is the purpose in using tie bars in concrete?

Reinforcement (to prevent crumbling and cracking under extreme pressure, weight or decay).


What is nominal cover to concrete?

it is the clear cover for stirrups. effective cover of the reinforcement = nominal cover+ diameter of stirrups+half diameter of main bars


What is the meaning of Fe in Fe415 grade reinforcement steel?

The abbreviation Fe stands for Ferrous material ie iron from which the reinforcement steel bars are manufactured.The reinforcement steel bars used in RCC (Reinforced Cement Concrete) are designated in grades of Fe250, Fe415 or Fe500 depending on their Yield Strength.(The numbers 215, 415 and 500 tell about this Yield Strength in N/mm2 the bars are designed and manufactured to have.)Fe415 indicates that the Yield Strength (tensile strength when it is subjected to elongation) of steel is 415 N/mm2.


What is the meaning of steel re bar?

Rebar is an informal term for steel "reinforcing bar". These are steel bars that are placed within the structure before the wet concrete is placed. Steel reinforcement is necessary for almost all structural concrete because concrete has virtually no tensile or shear strength. The rebar provides almost all of the resistance to tension and shear within the structure.

Related questions

Why do people use metal bars or mesh in the construction of concrete roads?

For reinforcement.


What is steel reinforcement for concrete pavement called?

The reinforcement may be in the form of "mesh" or rods. The steel reinforcing rods are colloquially called rebar(reinforcement bars).


What is the difference between lean concrete and mass concrete?

Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.


What are the differences between the mass concrete and reinforced concrete?

Mass concrete is concrete cast without Rebars. They are good in compression and are mostly used for the construction of gravity structures such as Dams. While reinforced concrete have reinforcement bars in them, which increases the tensile strenght of the concrete.


What is R.C.C?

RCC means reinforced cement concrete....in this case the reinforcement used is steel bars.....the purpose of using the steel bars in concrete it gives tensile strength to concrete to some extent.


What is the purpose of compression reinforcement in beams?

Steel is stronger than concrete. By adding some reinforcement in the compression zone of a beam, it's bending strength can be increased without increasing the size of the beam. The steel increases the compression strength, while the concrete prevents the slender steel bars from buckling.


How do you strengthen concrete?

you could strengthen it by putting metal bars inside the concrete


When do builders use metal bars in concrete?

When needed


What is the purpose in using tie bars in concrete?

Reinforcement (to prevent crumbling and cracking under extreme pressure, weight or decay).


Why steel bars are used for reinforcement of concrete instead of other metals?

strength versus cost of steel against otehr metals


What is reinforced concrete?

Reinforced concrete is concrete reinforced with steel bars because although concrete is very strong in compression (depending on its components) it is very weak in tension and the steel bars make up for the required tensile strength.


How can the choice of construction materials and construction techniques influence sustainability?

In a huge variety of ways. But since you didn't mention what you are building, I can't tell specifically. Here's an example though: If you're building let's say a garage with a concrete foundation, you have to use reinforcement bars. Concrete is worthless without those. because if the ground sinks by just a few millimeters in one corner and you haven't casted reinforcement bars into the concrete construction, it will crack and ultimately fall into pieces. Hope this sheds some light.