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A Changsha, in Cina, in meno di 20 giorni è stato costruito un grattacielo di 57 piani. Va precisato che si tratta di blocchi prefabbricati. Le ditte impegnate hanno lavorato al ritmo di 3 piani al giorno.
Questa tecnica, afferma la società costruttrice, oltre a ridurre i tempi di costruzione è eco-sostenibile: sono stati risparmiati 15'000 viaggi di camion di calcestruzzo ed è stato ridotto al minimo il rilascio di polveri nell'aria.
Il palazzo, alto come quasi come due vote il Pirellone di Milano, ospiterà appartamenti e uffici per oltre 5'000 persone. Nella città di 6 milioni di abitanti è in progetto la realizzazione del grattacielo più alto del mondo.
ansa/mas
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