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Knitting a road with stones and string


S
INCE THE Romans began doing it with great panache more than 2,000 years ago, road-building has been a sweaty, grubby business, involving heaving great quantities of rocks and stones into place and, in more recent times, covering the surface with asphalt or concrete. Now a group of Swiss researchers think they have come up with a more elegant solution. Strange as it may seem, this involves knitting.
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Martin Arraigada and Saeed Abbasion of the Swiss Federal Laboratories for Materials Science and Technology use a robotic arm to lay out string in a series of elaborate patterns. As the knitting takes shape, layers of stones are added and tamped down. The string entangles the stones, keeping them in place. The result is a structure that is surprisingly stable and strong. In one experiment a section of pavement put together in this way withstood a load of half a tonne. The encapsulated stones hardly moved ....

New South Wales , Martin Arraigada , Saeed Abbasion , Gramazio Kohler , Gergana Rusenova , Swinburne University Of Technology , Swiss Federal Laboratories , Materials Science , Swinburne University , புதியது தெற்கு வேல்ஸ் , ஸ்வின்பர்ன் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , சுவிஸ் கூட்டாட்சியின் ஆய்வகங்கள் , பொருட்கள் அறிவியல் , ஸ்வின்பர்ன் பல்கலைக்கழகம் ,

Knitting a road with stones and string


SINCE THE Romans began doing it with great panache more than 2,000 years ago, road-building has been something of a sweaty and grubby business, involving heaving great quantities of rocks and stones into place and, in more recent times, covering the surface with asphalt or concrete. Now a group of Swiss researchers think they have come up with a more elegant solution. Strange as it may seem, this involves knitting.
Martin Arraigada and Saeed Abbasion of the Swiss Federal Laboratories for Materials Science and Technology use a robotic arm to lay out string in a series of elaborate patterns. As the knitting takes shape, layers of stones are added and tamped down. The string entangles the stones, keeping them in place. The result is a structure that is surprisingly stable and strong. In one experiment a section of pavement put together in this way withstood a load of half a tonne. The encapsulated stones hardly moved at all. ....

New South Wales , Martin Arraigada , Saeed Abbasion , Gramazio Kohler , Gergana Rusenova , Swinburne University Of Technology , Swiss Federal Laboratories , Materials Science , Swinburne University , புதியது தெற்கு வேல்ஸ் , ஸ்வின்பர்ன் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , சுவிஸ் கூட்டாட்சியின் ஆய்வகங்கள் , பொருட்கள் அறிவியல் , ஸ்வின்பர்ன் பல்கலைக்கழகம் ,