Construction

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This house was 3D-printed in just 24 hours

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As we start to 3D-print everything — including houses, of all things — it’s pretty impressive that a company built one in just 24 hours.

Located in Russia, this 400-square-foot home (37 square meters) was built in just a day, at a cost of just over $10,000.

3D-printing company Apis Cor built the house using a mobile printer on-site.

Image: APIS COR

Image: APIS COR

The main components of the house, including the walls, partitions and building envelope were printed solely with a concrete mixture.

Fixtures like windows and furnishings were later added on, and a shiny coat of paint added to the exterior of the house. Read more…

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India is getting an undersea bullet train

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Drills for India’s first bullet train has begun, according to reports. Construction of the 7-kilometres (about 4.3 miles) undersea rail corridor between Mumbai and Ahmadabad in western India is slated to begin in 2018.

The drilling will help ascertain soil conditions under water. “Soil and rocks below the 70-meter-deep see are being tested as part of the geo-technical and geo-physical investigation undertaken for the entire project,” a senior Railway Ministry official reportedly said. 

Estimated to cost about Rs 97.6 billion ($14.5 billion), 80% of the project’s funding will come by way of a loan from Japan that operates the Shinkansen bullet train between Tokyo and Osaka. India will replicate that system. The project cost includes possible cost escalation, interest during construction and import duties.  Read more…

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Watch 19 buildings collapse into a giant dust cloud

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Controlled implosions of buildings are generally mesmerising to watch, and this one is no different.

19 buildings — each seven to 12 stories high — were destroyed simultaneously to make way for a new business center in Hankou, Hubei, central China. 

The implosion was reportedly the largest in China, covering 15 hectares in area and required more than 5 tons of explosives in 120,000 locations.

Watch how close the implosions were to surrounding buildings — and an adjacent operational train line.

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