MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641052050 A) filed by Sudagani Venkata Giri Babu; and Dr. S. Krishnaiah, Kakinada, Andhra Pradesh, on April 23, for 'a non-autoclaved fly ash-carbon black aerated lightweight brick composition and a method thereof for sustainable construction applications.'
Inventor(s) include Sudagani Venkata Giri Babu; and Dr. S. Krishnaiah.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a non-autoclaved fly ash-carbon black aerated lightweight brick composition and a method thereof for sustainable construction applications. The composition comprises fly ash, carbon black, cement, gypsum, polycarboxylate ether, aluminium powder, and water, wherein the aluminium powder generates controlled porosity within an alkaline cementitious matrix. Cement is present in the range of 5% to 15%, gypsum in the range of 1.0% to 2.0%, polycarboxylate ether in the range of 0.4% to 1.5%, and aluminium powder in the range of 0.10% to 0.25%, while fly ash and carbon black together form the remaining matrix. The manufacturing method includes dry mixing, slurry formation, controlled addition of aluminium dispersion, casting without heavy compaction, initial setting, demoulding, and curing without autoclaving. The resulting bricks exhibit density in the range of 1100 kg/m to 1380 kg/m, compressive strength in the range of 2.86 MPa to 4.19 MPa, and water absorption in the range of 8.53% to 18.59%, thereby providing a sustainable, lightweight, and mechanically suitable masonry product."
Disclaimer: Curated by HT Syndication.
