Which of the following plastics is used in fiber-reinforced composites for bridges and structural applications?
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A.
Acrylic
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B.
Acrylonitrile Butadiene Styrene
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C.
Epoxy resin
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D.
Nylon
Correct Answer:
C. Epoxy resin
Explanation:
The correct answer is Epoxy resin.
In the construction of bridges and other structural frameworks, fiber-reinforced composites typically utilize epoxy resin as the primary polymer matrix. This material is chosen for its exceptional adhesive properties, which allow it to bond effectively with reinforcing fibers like carbon or glass, as well as with concrete surfaces. Beyond its strength, epoxy resin provides high resistance to environmental factors such as corrosion and fatigue, making it ideal for maintaining the durability and load-bearing capacity of large-scale infrastructure. While other plastics like nylon or ABS have various industrial uses, they lack the specific mechanical and thermal stability required for the demanding conditions of bridge engineering.
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