MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202531127711 A) filed by National Institute Of Technology, Rourkela, Orissa, on Dec. 16, 2025, for 'eco-efficient geopolymer concrete utilizing crushed steel furnace slag waste and its method of manufacture.'
Inventor(s) include Siba Sankar Chanda; Shyamal Guchhait; Anurag Sharma; Jatin Anand; and Soukat Kumar Das.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides an eco-friendly geopolymer concrete system and its method of manufacture wherein the system comprising of a co-acting combination of crushed steel furnace slag (CSFS) as partial replacement of fine natural river sand and ground granulated blast furnace slag (GGBS) alongwith fly ash as primary binder and having ratio of natural sand to CSFS in the range of 100 to 0 : 0 to 100 % and said fly ash to GGBS in the range of 100 to 0 : 0 to 100 % in presence of alkaline activators selected from mixture of Na2SiO3 and NaOH in ratio of 1.5 to 1 : 3.5 to 1,favours ambient temperature curable dense concrete microstructure having calcium-sodium aluminosilicate hydrate C-A-S-H and N-A-S-H gel structures for achieved density in the range of 2456 to 2534 kg/m and related high compressive strength in the range of 34.8 to 51.2 MPa. The invention introduces a novel mix methodology based on selection of parameters by the Taguchi approach to achieve high mechanical strength, density, and durability under ambient curing conditions, eliminating the need for heat curing."
Disclaimer: Curated by HT Syndication.
