Sunday 30 September 2012

Material Properties

Concrete

What is the process of making the material:
 - The cement is prepared then other ingredients are prepared to be mixed together such as aggregates and admixtures. The result mixed together forms concrete.
How long will the material last:
- Concrete lasting period depends on its environmental, service, and maintenance conditions but on average it will last around 50-75 years.
What makes the material corrode:
- Various actions towards its surrounding environment such as rain and gases.
What are the material's structural pros and cons:
- PROS - Strong in compression, easily cast, recyclable, good strength properties.
- CONS - Weak in tension, can often crack and fail in situations.
What is the material typically used for: 
- Footings, columns, walls, foundation of the building.
What are the material's environmental impacts:
- Creating concrete and emit amount of Carbon dioxide contributing to the greenhouse effect.
- Concrete dust from the demolition of buildings causing air pollution.

Glass

What is the process of making the material: 
- The first step is the input of the raw materials, then it undergoes a varied process within the furnace, and the last step is the output production.
How long will the material last:What makes the material corrode: 
- Glass doesn't decompose.
What are the material's structural pros and cons: 
- PROS - Can be cast into many shapes and provides transparency.
- CONS - Very brittle.
What is the material typically used for:
- Windows
What are the material's environmental impacts:
- With the use of heat to produce glass, it emits Carbon dioxide and contributes to the greenhouse effect.

Marble

What is the process of making the material: 
- The mined materials of marble are fed into the furnace to be refined and then is shaped through the processes of injection, cutting and cooling.
How long will the material last:What makes the material corrode: 
- 3-4 centuries.
What are the material's structural pros and cons: 
- PROS - Aesthetic appearance, durable.
- CONS - Low resistance to scratching and expensive.
What is the material typically used for:
- Statues, buildings, tomb stones, fireplace mantles, floor tiles, and countertops.
What are the material's environmental impacts:
- Energy consumption of marble factories uses an electric source minimalising the environmental impact from energy consumption sources.

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