MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641025219 A) filed by Sir M. Visvesvaraya Institute Of Technology; Mrs. Ramya N; Dr. Pradeepa S; and Mrs. Vyshnavi D R, Bengaluru, Karnataka, on March 3, for 'smart-graded e-aggregate: a method for manufacturing is-compliant structural concrete using processed non-metallic e-waste.'

Inventor(s) include Mrs. Ramya N; Dr. Pradeepa S; and Mrs. Vyshnavi D R.

The application for the patent was published on March 13, under issue no. 11/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to a method of manufacturing structural concrete aggregate from non-metallic electronic waste. The method comprises segregation of non-metallic e-waste, removal of hazardous components, crushing, neutralization, and grading to obtain processed e-aggregate. The gradation is maintained in an approximate 60:40 ratio of larger to smaller particle sizes to achieve optimized particle packing. In certain embodiments, the e-aggregate is surface activated using a cementitious slurry coating to enhance bonding with the cement matrix. Further, The processed e-aggregate is incorporated as a partial replacement of natural coarse aggregate in the range of about 10-20%, optionally along with slag sand as a supplementary fine aggregate. The resulting concrete exhibits structural strength meeting applicable construction requirements, improved workability, and reduced density. The invention further provides a sustainable waste management solution by permanently encapsulating electronic waste within a stable cementitious matrix in compliance with relevant Indian Standards."

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