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posted by martyb on Friday July 20 2018, @08:27AM   Printer-friendly
from the silence-is-golden^Wgreen dept.

Phys.org:

Noise barriers muffle the transmission of traffic noise and constitute a relevant factor in urban action plans. However, their effectiveness varies according to multiple factors. The new green noise barrier developed by two researchers from the School of Building at UPM [(Universidad Politécnica de Madrid)] use the raw material resulting from the pruning of plants and gardens. The combination of this vegetable waste with a local substrate and water result in a new mixture of suitable acoustic and structural characteristics for these types of barriers.

Today, the commercial noise barriers are made of different materials such as concrete, brick, wood, and glass that consume material resources in the manufacturing process and generate a large amount of waste at the end of their useful life.

Researchers have now developed barriers made of recycled elements that reduce the use of materials and reuse carpet waste, scraps of paper and fibrous materials. In this study, the raw materials used by UPM researchers come from garden waste, specifically palm leaves. Using local materials provides savings for both transport and environmental impact, offering a solution to the excessive amount of waste.

This one comes with electrolytes.


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  • (Score: 2) by BsAtHome on Friday July 20 2018, @12:14PM (1 child)

    by BsAtHome (889) on Friday July 20 2018, @12:14PM (#709875)

    Those alligators would be, like, road-decoration? Very flat road-decoration?

    One can only hope that they point in the right direction and have been eating reflectors ;-)

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  • (Score: 2) by JoeMerchant on Friday July 20 2018, @12:39PM

    by JoeMerchant (3937) on Friday July 20 2018, @12:39PM (#709876)

    On Alligator Alley they put up chain linked fences to keep the number of alligator speed bumps to a minimum on the highway.

    --
    🌻🌻 [google.com]