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Last edited 25 Sep 2017
How to rebuild using the debris from disasters
In Amsterdam, a mobile factory the size of two shipping containers ingests rubble at one end, liquifies it into cement, and spurts out LEGO-shaped building blocks. Call it 'rubble for the people', converting the deadly debris from disasters into homes and hospitals, cheaply and quickly.
It’s the brainchild of Gerard Steijn, a 71-year-old sustainable development consultant turned social entrepreneur, who leads the Netherlands-based project to recycle the rubble from natural disasters and wars.
“But what happens if you are poor? In disasters it is the poorest people who live in the weakest houses and they loose their homes first. I thought, what if you recycled the rubble to build back better homes for poor people?”
Three brightly painted concept homes stand in an industrial park in Amsterdam. Hennes de Ridder, an engineering professor at the University of Delft who donates his time to the Mobile Factory, exudes a child’s excitement in describing their sparse structural elements.
Each 20 x 10 x 10 cm (8 x 4 x 4 inches), snaps together LEGO-style without cement or mortar allowing the home to flex under stress, he explains. Bamboo poles inserted into the walls provide extra stability, while two bamboo poles and a steel cable anchor the roof, he explains.
Unskilled people can build the homes with the blocks, which meet demanding Dutch construction standards to ensure they will last for many years. De Ridder expects further stress tests will show the homes can withstand tremors of at least 6 on the Richter scale.
Written by Stella Dawson Chief Correspondent, Thomson Reuters Foundation
--Future of Construction 14:53, 16 Jun 2017 (BST)
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