alternative construction
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alternate constructionTRANSCRIPT
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Alternative Construction
Construction Technology
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Alternative Techniques
Adobe ConstructionRammed EarthPneumatic StructuresStraw and Clay ConstructionEarth Ship ConstructionCob Construction
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Rammed Earth Construction
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Rammed Earth
Earth Pressed Blocks Extremely stable
Each block can hold over 1000 lbs per sq. in. Can withstand winds over 140 mph.
Made quickly and easily at the site Machines are brought to the site.
Natural and Safe Non-toxic No off-gasing
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Rammed Earth
Other Features Energy Efficiency
Absorbs suns heat In the winter, it keeps the heat inside. In the summer, it keeps the excess heat in the
walls. Long Lasting
The are buildings still standing that are hundreds of years old.
Low Maintenance Virtually no maintenance
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Rammed Earth
Fast Can make 10
blocks per minute 600 blocks an
hour. Can be stacked
immediately No drying time
Cheap About six cents a
block Dirt is free and
available at the site.
Only paying for energy to make the blocks and labor
Simple: unskilled workers can do it.
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Rammed Earth
Earth Press Machine
John Deere – Diesel Powered20 – 60 thousand dollars
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Earthship Construction
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Earthship Construction
Natural and recycled materialsSolar PowerThermal Mass ConstructionIntegrated water systemsFew or no utility bills
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Earthship Construction
Natural and Recycled Materials Everything is recycled or natural
Tires, aluminum, wood, plastic, etc.
Thermal Mass Construction During the day, the heat is attracted
to the cold materials. During the night when the rest of the
house cools, those materials are now warmer, and they release the heat.
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Earthship Construction
Grey Water Systems Water from sinks
and showers are recycled in the greenhouse.
Composting Toilets Human waste is
turned to fluffy material that can be used as fertilizer.
Integrated Water Systems
Rain Water Catchment A cistern catches rainwater,
which is filtered and used in the house.
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Rainwater Catchment System
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Composting Toilets
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Cob Structures
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Cob Construction
Clay, straw, and Sand Clay holds the mixture together Straw reinforces the mixture Sand hardens the mixture.
Mixed by foot or with a cement mixer
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Cob Construction
Won’t Catch on FireCan withstand earthquakesEnergy EfficientExtremely DurableEnvironmentally FriendlyMaterials are readily available
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Cob Construction
Mixed into a dough like consistency,
Placed onto the walls up to two foot thick
Create any shape desired Like sculpting a house
Very Inexpensive
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Straw and Clay Construction
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Straw and Clay
Straw is mixed with clay and shaped into 1 foot thick blocks.They are stacked around a timber frame.
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Straw and Clay
Cheap: Readily available materialsExcellent InsulationCan be spackled overFire resistantRodent resistantThe walls can breath
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Pneumatic Structures
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Pneumatic Structures
Used for… Military purposes Relief Efforts Sporting Events
Easily Transported Folds up Just set in place and inflate
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Pneumatic Structures
Usually a frame of tubes that hold air.Frame is covered with a durable material Nylon Plastic Etc.
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Pneumatic Structures
Sometimes, they are just a giant sheet of material inflated with air.You have to go through an airlock to get in, so the air doesn’t escape.