MUMBAI, India, July 11 -- Intellectual Property India has published a patent application (202541060687 A) filed by Sona College Of Technology, Salem, Tamil Nadu, on June 25, for 'replacement of fine aggregates with glass powder in fly ash brick.'
Inventor(s) include Dr. R Malathy; Dr. M. Logesh Kumar; Dr. S. R. R Senthil Kumar; Ms. Tejal Venu Gopal; Ms. Thanusri Ragavan; and Mr. Dharshan Venkatachalam.
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 growing demand for sustainable and eco-friendly construction materials has led to the exploration of waste materials in brick manufacturing. This study investigates the feasibility of replacing fine aggregate with waste glass powder in fly ash bricks to enhance their performance while promoting waste utilization. Fly ash bricks were prepared by partially replacing fine aggregate with varying proportions of waste glass powder (30%, 40% and 50%). The prepared bricks were tested for compressive strength, water absorption, and durability in accordance with standard guidelines. The results indicate that the incorporation of waste glass powder positively influences the strength properties of the bricks while reducing dependency on natural fine aggregate. The compressive strength of the modified bricks (50% replacement of fly ash and 40% replacement of waste glass powder) shows best results, ensuring structural adequacy. Additionally, the water absorption values were within the acceptable range, indicating good durability and reduced porosity. The presence of waste glass powder also contributes to enhanced binding properties and improved surface finish. This study demonstrates that waste glass powder can be effectively utilized in fly ash brick production without compromising quality, offering an environmentally friendly and cost-effective alternative. The findings encourage the adoption of sustainable practices in the construction industry by minimizing waste disposal issues and conserving natural resources."
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