Week 9 Tasks

_Marble

_Process to make Material: Marble is mined material. After being mined, the marble is removed of dirt and  waste rocks. It is then taken to a factory where it is shaped.

_How long will it last: 3-4 Centuries

_What corrodes this material: Industrial waste gases, acid rain

_Pros: Visually Appealing, Can be durable if cared for

_Cons: Expensive, Scratches easily

_Typical Uses: Finishing on buildings, Statues, Decorations

_Environmental Impacts: Mining and shaping the marble has some environmental impacts due to the energy required

_Concrete

_Process to make Material: Concrete is made by combining water, cement and an aggregate

_How long will it last: 50-70 Years (Depends on Environment)

_What corrodes this material: Industrial waste gases, acid rain

_Pros: Recyclable, Relatively Cheap

_Cons: Vulnerable to failure through tension or shear

_Typical Uses: Common Building Material, Building Footings

_Environmental Impacts: The production of concrete contributes to the greenhouse effect, Material is recyclable, Material can pollute soils

_Glass

_Process to make Material: There are two main methods of glass production, glassblowing and float glass process. Float glass processing is more commonly used for structures

_How long will it last: Does not decompose

_What corrodes this material: Very few substances can corrode glass, only very specific acids can corrode and dissolve glass

_Pros: Can be manipulated in various ways to increase the visual appeal of the material 

_Cons: Fragile 

_Typical Uses: Windows

_Environmental Impacts: The production of glass contributes to the greenhouse effect