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Prefabricated structures to prevail in building sites

SHANGHAI constructors will use "green" building technology in 20 percent of new housing projects by 2015 to reduce noise pollution and save energy.

Local construction groups say they are still improving on the skills required to raise construction efficiency. The method of prefabricated concrete structure is used in about 35 percent of housing projects in the United States and 35 to 40 percent in many European countries.

"Traditionally, we can build one story in six days. With the new method, it costs 14 days. We are still honing skills to raise the efficiency," said Zhi Wei, a manager with Shanghai No. 2 Municipal Engineering Ltd.

His company is currently building one of the city's largest budget housing projects in Pujiang Town, Pudong District. It plans to adopt the technology of prefabricated concrete structure for half of the buildings.

Instead of using concrete mixers and other machinery at the work site, building materials are prefabricated in factory, thus reducing dust and noise by as much as 91 percent and cutting the use of scaffolds by half, Zhi said.


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