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Broad Sustainable Building (BSB), the developer of the proposed 838-metre pre-fabricated ?Sky City? in Changsha, China, calls its ?country?s new normal.?
It has built a 57-storey tower (J57) in 19 days time, building three floors in a day, reveals a time-lapse video released by company architect Xian Min Zhang shows the construction of J57, which claims the company built three floors per day.
The building has 19 atriums each of 10-metre high, 800 residential units and office space for 4,000 people.
According to Zhang, the use of its modular construction technique reduced the use of concrete by 15,000 trucks, which ?nearly eliminated all the dust that is released during conventional construction.?
He claims all of the air inside the building is 99.9 per cent pure due to the tight construction and built-in air conditioning system and is energy efficient saving more than 10,000 metric tons of carbon dioxide emission compared to a conventional building of the same size and use.