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Baya Bird Nest Inspires Bricks from Plastic Waste

Infra News - Published on Tue, 03 Dec 2019

Image Source: Bird Nest Plastic Bricks
De Montfort University Leicester Mechanical Engineering senior lecturer Dr Karthikeyan Kandan has created a novel brick made entirely from recycled plastic waste. Believed to be the first of its kind, the brick is constructed using 3D printing and lattice architecture technologies, which involves criss-crossing strips of the plastic materials to form a grid or weave. The design is inspired by nature, after Dr Kandan examined the structure of the Baya weaver bird’s nest; renowned for its elaborately woven construction. Dr Kandan said “The Baya weaver bird’s nest’s ingenious construction gives it excellent thermal insulation and mechanical properties for inhabitation. Inside there is a central nesting chamber, which makes it the ideal micro-climate for inhabitation. By replicating this structure, we have manufactured a brick that improves energy efficiency of modern buildings and therefore can reduce carbon foot print.”

PhD student at DMU Saad Alqahtani carried out controlled experiments on the plastic bricks. To test its thermal insulation characteristics, Saad placed the brick in a hot-box calorimeter, a piece of equipment used to measure the U-value of an object, which can be set up to simulate the regulatory standard for buildings. The results showed the new design delivered an impressive U-value of 0.25 Watts per Metre Kelvin. This is 10 times more effective than a clay brick, which delivers an average of 2.94 W/m²K.

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Posted By : Yogender Pancholi on Tue, 03 Dec 2019
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