Green technology innovations by researchers at TN University have replaced 70% of the sand in concrete with shredded plastic.

A team of researchers at Sona Institute of Technology in Salem, Tamil Nadu have patented a unique method of replacing up to 70% of the sand in concrete with shredded plastic, two of the world’s biggest environmental problems in the 21st century. I am working on one. process.

This technology saves sand, the second most used natural resource, while helping to prevent landfills from rising with waste PET bottles.

How this green technology innovation addresses two environmental issues

India consumes about 70 million tonnes of sand annually to meet infrastructure demand, and this usage is increasing by 7% annually.

At the same time, more than 5 million tons of plastic are consumed each year, about a quarter is recycled and the rest is landfilled.

Surprisingly, sand is a fundamental component of construction, forming large chunks of concrete used in structures found in modern cities such as malls, offices and homes.

Innovations in converting plastic waste into usable construction materials can be used to partially replace traditional concrete components.

Who are the researchers behind this innovation?

The team of inventors at Sona College (Dr. R Marasy, Dr. SRR Sentil Kumar, N Carpasami, K Dineshbab) worked on patented inventions. ‘2019. The final patent was assigned in early 2022.

How innovative ideas were tested

Our invention makes good use of recycled plastic waste as a partial replacement for fine aggregate and natural sand in the manufacture of pavement blocks and precast bricks. Obtained a patent from the Indian Patent Office.

Waste PET (polyethylene terephthalate) bottles collected from Salem and its surroundings are crushed by a large machine to a size of less than 4.75 mm.

The inventor of Sona Colleges of the Department of Civil Engineering achieved 70% replacement of natural sand according to the IS 15658-2006 cordal, while matching the strength of the tri-arc paving stone block.

“By utilizing plastic waste and dramatically reducing the use of natural sand, our patented technology offers significant environmental and cost benefits,” said Dr. SRR Senthil Kumar, Principal of Sona Institute of Technology. I am saying.

About Sona Institute of Technology

Sona Institute of Technology, a self-governing body under Anna University, is known to meet ever-changing knowledge needs and skills requirements through 36 laboratories, and with deep industry ties, it is the best industry link by CII. It is recognized as an institution. -AICTE for the last 8 years.

The Sona Valliappa Group’s educational institutions have over 60 years of extensive experience in providing quality education throughout engineering, technology, and management through undergraduate, graduate, graduate, and doctoral programs.

Read: How to Save the World with a Sustainable Design Career

Read: The largest IIT Madras hostel in Rs. 146.75 cr has solar power generation and rainwater reuse, and is kind to people with disabilities.

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