The Hong Kong’s artificial Lantau island reclamation scheme will not be relying on imported sand but will use local construction waste instead, said Hong Kong’s development secretary Michael Wong Wai-lun.
Wong said this in response to concerns that a shortage of sand for the Lantau Tomorrow Vision project might inflate costs, as reported in The South China Morning Post.
The Lantau scheme involves the construction of 1,700 hectares worth of artificial islands off Lantau Island in western Hong Kong, via reclamation from the sea.
“Construction waste will be a major component and form a considerable percentage of the amount of fill, but an exact figure can only be obtained after some engineering studies,” said Wong.
Hong Kong produces 15 million tonnes of construction waste every year, enough to reclaim 60 hectares of land, he added.
Construction waste was also used in the reclamation for the Hong Kong International Airport’s third runway, but according to government documents, they covered only 10 million square metres—or 10 per cent—of the 100 million square metre reclamation area. — Construction+ Online