Fiber Reinforced Polymer (FRP) is increasingly used in Civil Engineering primarily because of its
- ALow cost compared to structural steel.
- BHigh strength-to-weight ratio and excellent corrosion resistance.Correct
- CAbility to be easily welded on-site.
- DHigh melting point compared to ceramic materials.
Solution
Concept
Fiber Reinforced Polymer (FRP) Properties
Formula
N/A
Step-by-step solution
1. Review the given question about the primary reasons for using Fiber Reinforced Polymer (FRP) in Civil Engineering. 2. Recall the key properties of FRP, which include high strength, light weight, and non-corrosive behavior. 3. Compare the properties with the given options and select Option (b) as the correct choice.
Explanation
Fiber Reinforced Polymer (FRP) is strong like steel but much lighter in weight, which makes structures easier to build and handle. Additionally, unlike traditional steel, FRP does not rust or corrode when exposed to water, weather, or harsh chemicals, making it last much longer with minimal maintenance.
Shortcut
To remember the key advantages of FRP in Civil Engineering, use the mnemonic "FRP = Feather-light, Rust-proof, Powerful": - Feather-light & Powerful: High strength-to-weight ratio (stronger than steel, but much lighter). - Rust-proof: Excellent corrosion resistance (does not rust or corrode like steel).
Common mistake
A common mistake is selecting option A by incorrectly assuming that FRP is cheaper than structural steel. In reality, FRP has a higher raw material cost, but its primary advantages are its high strength-to-weight ratio and superior corrosion resistance. Another frequent mistake is selecting option C by confusing FRP polymers with metals and assuming they can be easily welded on-site.
Correct answer: B) High strength-to-weight ratio and excellent corrosion resistance.