I dislike concrete but I had no option to build the foundation where the dome stands on due to time and lack of construction knowledge. Thickness of the concrete foundation is 5 cm.
Mixture ratio of making concrete I used.
Crushed stone : sand : cement = 3 (shovels) : 3 : 1.5
The steel geodesic dome
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five centimeters of concrete – 5 cm
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one layer of crushed stones – 2 cm to 2.5 cm
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one layer of plastic – water protection
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soil
05/09/2015
Water drain pipe installation
Wire mash installation
05/10/2015
Putting first layer of concrete
05/11/2015
Putting second layer of concrete
05/16/2015
05/17/2015
05/18/2015
05/19/2015