MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641024634 A) filed by National Institute Of Technology, Calicut, Kerala, on March 2, for 'a sodium silicate-silica fume pre-soaking method for improving the properties of recycled fine aggregate for restoration applications.'
Inventor(s) include Anila C Shaju; Praveen Nagarajan; Sudhakumar J; Blessen S Thomas; and Sudha Das.
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: "A method for improving the properties of recycled fine aggregate (RFA) obtained from construction and demolition waste, comprises the steps of: (a) preparing an aqueous treatment solution by mixing sodium silicate and silica fume; (b) immersing the RFA in the treatment solution for 24 hours with periodic stirring to allow penetration into micro-pores of adhered mortar; (c) draining the immersed RFA; (d) oven-drying the drained RFA at 102 5 C for 24 hours; and (e) air-drying the oven-dried RFA for 6 hours to obtain treated recycled fine aggregate (TRFA). The present invention also provides recycled fine aggregate with enhanced properties, produced by the method."
Disclaimer: Curated by HT Syndication.
