MUMBAI, India, Nov. 7 -- Intellectual Property India has published a patent application (202444035664 A) filed by Karpagam College Of Engineering, Coimbatore, Tamil Nadu, on May 6, 2024, for 'quarry dust and ggbs in concrete.'
Inventor(s) include B. T. Usha Priya; M. Pandiayyappan; A. Vasanthan; S. Boopathi; and K. Risanth.
The application for the patent was published on Nov. 7, under issue no. 45/2025.
According to the abstract released by the Intellectual Property India: "Concrete is been used for wide varieties of purpose to make it suitable in different conditions. In these conditions ordinary concrete may fails to exhibits the required durability. admixtures are added to modify the properties of concrete. The replacement of cement with admixture such as GGBS will reduce the unit water content necessary to obtain the same slump. The use of GGBS reduces the heat of hydration and reduces the permeabilities to the external agencies. The fine aggregate is been replaced by quarry dust. Quarry dust is often less expensive than natural sand, making it an attractive option for reducing construction costs. Using quarry dust as a replacement for sand reduces the demand for natural resources and helps in the sustainable utilization of quarry waste. Quarry dust can improve the workability of concrete mixtures due to its finer particle size and angular shape, which can enhance the packing density of the concrete mixture. Quarry dust can contribute to the strength and durability of concrete when properly proportioned and mixed. It can fill voids in the concrete matrix and improve the bond between aggregate particles and cement paste. Incorporating quarry dust in concrete mixtures can reduce the shrinkage potential of concrete, leading to improved dimensional stability over time."
Disclaimer: Curated by HT Syndication.
