What are the advantages and disadvantages of prestressed concrete over reinforced concrete?

Prestressed concrete members are able to bear reversal of stresses, impact, vibration and shock due to the absence of cracks. Practically, dead loads are neutral in a prestressed concrete beam. Consequently, the dead load weight of the structure is decreased which results in reduced consumption of materials.

How is prestressed concrete different from reinforced concrete?

While reinforced concrete is formed at rest, prestressed concrete is formed under stress. Steel bars are placed in a form and stretched at both ends as the concrete is poured in.

Which do you prefer reinforced concrete or prestressed concrete Why?

Construction(Reinforced Concrete)  Mild Steel bars are placed according to the design.  No wires cables and tendons are needed in RCC. Construction(Prestressed Concrete)  In slab-on-ground construction, unbonded tendons are typically prefabricated at a plant and delivered to the construction site, ready to install.

What are the advantages of prestressed concrete sleepers?

Advantages of Prestressed Concrete Sleepers:

• As high tensile wires used and the concrete is Prestressed, they are less liable to cracking.
• They are very strong in resisting tension and do not creep under stress.
• They are very cheap in the long run due to their long life.

Why is prestressed concrete stronger?

Pressing on concrete is known as a compressive force, while pulling or bending the concrete is known as exerting a tensile force. Each type of reinforcement is designed to combat a specific type of stress, and prestressing the concrete makes it particularly resistant to tensile forces.

What are the advantages of concrete sleepers?

Advantages of concrete sleeper

• Strong stability. Compared with wooden sleeper, concrete sleeper with extra weight makes track more stable.
• Long service life.
• Better withstand fire hazards.
• Good insulation.
• Low maintenance cost.
• Environmental protection.