Table of Contents
Table of Contents
Gateway Arch (St.Louis, MO) |
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Stone
Advantages
- Stone is durable, strong and weather resistant.
- Minimal maintenance required after installment.
- Non-combustible material.
- High load carrying ability and recommended for buildings with high foot traffic.
- Low environmental impact.
Disadvantages
- Heavy material.
- Low tensile strength and seismic resistance [1].
- Time consuming construction method that requires skilled labour.
Five Stone Arch Bridges (Hillsborough, NH) |
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Concrete
Advantages
- High load carrying ability.
- Minimal maintenance required after installment.
- Non-combustible material.
- Concrete is an economical material. The production cost of concrete is low.
- The energy required for concrete production is low when compared to materials such as steel.
- Concrete can withstand water without serious deterioration. This makes concrete an effective option when encountering a stream or lake.
Disadvantages
- Heavy material.
- Long curing time.
- Relatively low tensile strength.
- Less ductile.
Canal Lake Concrete Arch Bridge (Kawartha Lakes, Ontario) |
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Steel
Advantages
- High load carrying ability using minimal material.
- Steel structures can withstand external pressures from earthquakes.
- Light weight nature.
- Scrap value.
- Water-tight and air tight construction.
Disadvantages
- Alloy of iron which makes it susceptible to corrosion [2].
- High maintenance costs (fireproofing, corrosion control).
- Reduced flexibility on site. It's difficult to make field corrections on site.
- Buckling.
Humber Bay Arch Bridge (Toronto, Ontario) |
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Contributors:
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