3.
Concrete
Properties: Gains strength over time, not weakened by moisture, mould or pests, best when in compression.
Longevity: usually 50+ years depending on the conditions, the main bane of concrete is the reinforced mesh or vegetation that creates cracks.
Process- cement are made from limestone, different ingredients are added then heated in a kiln, mixed with aggregates, water and others stuff depending on the purpose.
Uses- Slabs, Walls, Columns, beams, very common and versatile and cheap material, usually goes with steel mesh to add tensile strength to avoid cracks.
environmental impacts- concrete is generally recyclable and used as aggregate, despite the high energy to product it, it still is a lot less energy intensive than other common building materials.
Glass
Properties: Glass generally resit most acids, with the exception of hydrofluric.
Glass has high compression strength and good impact strength when tempered.
Light transmission is the main reason we use glass.
Longevity: lasts for very long time, extremely slow to regrade into dust.
Process- made from sand and soda ash and limestone and heated in a furnace.
Uses- windows, curtain wall.
environmental impacts- glass as construction waste is recyclable can be used as aggregate, cost a lot of energy to heat the ingredients to produce.
Steel
Properties: tensile strength, versatile.
weak without maintenance, as corrosion can occur when exposed to water and air, pretty weak aganist corrosion unless protection coating like zinc is applied.
Longevity: not very long, as it is vulnerable to corrosion.
Process- smelted with iron ore and coal in a furnace.
Uses- steel mesh, beams, column, trusses, roof/wall panel.
environmental impacts- very high processing energy consumption, easily recyclable.
Reflection
This week I found out why cement requires so much energy to produce, as it needs to go through a series of grinders than a thruster like flamethrower to refine the rocks, and further process it into cement. And also how fast cement mix flows into shape when poured effects the construction speed tremendously.
Properties: Gains strength over time, not weakened by moisture, mould or pests, best when in compression.
Longevity: usually 50+ years depending on the conditions, the main bane of concrete is the reinforced mesh or vegetation that creates cracks.
Process- cement are made from limestone, different ingredients are added then heated in a kiln, mixed with aggregates, water and others stuff depending on the purpose.
Uses- Slabs, Walls, Columns, beams, very common and versatile and cheap material, usually goes with steel mesh to add tensile strength to avoid cracks.
environmental impacts- concrete is generally recyclable and used as aggregate, despite the high energy to product it, it still is a lot less energy intensive than other common building materials.
Glass
Properties: Glass generally resit most acids, with the exception of hydrofluric.
Glass has high compression strength and good impact strength when tempered.
Light transmission is the main reason we use glass.
Longevity: lasts for very long time, extremely slow to regrade into dust.
Process- made from sand and soda ash and limestone and heated in a furnace.
Uses- windows, curtain wall.
environmental impacts- glass as construction waste is recyclable can be used as aggregate, cost a lot of energy to heat the ingredients to produce.
Steel
Properties: tensile strength, versatile.
weak without maintenance, as corrosion can occur when exposed to water and air, pretty weak aganist corrosion unless protection coating like zinc is applied.
Longevity: not very long, as it is vulnerable to corrosion.
Process- smelted with iron ore and coal in a furnace.
Uses- steel mesh, beams, column, trusses, roof/wall panel.
environmental impacts- very high processing energy consumption, easily recyclable.
Reflection
This week I found out why cement requires so much energy to produce, as it needs to go through a series of grinders than a thruster like flamethrower to refine the rocks, and further process it into cement. And also how fast cement mix flows into shape when poured effects the construction speed tremendously.
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