MUMBAI, India, July 11 -- Intellectual Property India has published a patent application (202541060549 A) filed by Vignan's Institute Of Information Technology, Visakhapatnam, Andhra Pradesh, on June 25, for 'performance of fly ash concrete in aggressive environment.'

Inventor(s) include Mr. M. Padmakar; Mr. M. Baburao; Ms. K. Sree Sandhya; Mr. Adigarala Rajeev Naidu; Mr. Arnepalli Uday Kiran; Mr. Dukka Sai; and Mr. Kasi Shanmukha Naidu.

The application for the patent was published on July 11, under issue no. 28/2025.

According to the abstract released by the Intellectual Property India: "The invention of replacing fly ash with cement in construction materials is tied to the search for sustainable, eco-friendly alternatives to traditional concrete. Fly ash, a byproduct of burning coal in power plants, has long been used as a supplementary cementitious material (SCM) to enhance the properties of concrete. Over the years, researchers and engineers have explored various ways to optimize this substitution to improve the environmental impact and performance of concrete. Fly ash, which is rich in silica, alumina, and other oxides, can partially replace cement in concrete. This not only reduces the environmental footprint of concrete production but also enhances certain properties, such as durability, workability, and resistance to certain chemicals. Its potential to improve the mechanical properties of concrete, especially in terms of strength and resistance to sulfate attack, was realized. Over time, fly ash became a popular choice for replacing cement due to its ability to reduce the overall cost of concrete production, improve the workability, and increase the longevity of structures."

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