MUMBAI, India, Jan. 23 -- Intellectual Property India has published a patent application (202641001762 A) filed by Indian Institute Of Technology, Dharwad, Karnataka, on Jan. 7, for 'a lightweight construction block with high strength.'
Inventor(s) include Dr. Giridhar Rajesh Bande; and Dr. Giridhar Rajesh Bande.
The application for the patent was published on Jan. 23, under issue no. 04/2026.
According to the abstract released by the Intellectual Property India: "The present disclosure provides a lightweight construction block comprising 90% Class F fly ash and 10% high plasticity clay by weight, wherein the construction block is formed through a vitrification process involving static compaction at pressures up to 40 MPa followed by sintering at temperatures between 1100 C and 1150 C, and wherein the construction block achieves a compressive strength of at least 101 MPa and has a unit weight of approximately 1725 kg/m. The Class F fly ash contains spherical particles including cenospheres that undergo complete dissolution during vitrification at 1150 C. The high plasticity clay is processed by drying, pulverizing, and sieving through a 425-micron sieve. The construction block is formed by mixing the materials with deionized water, followed by static compaction, air drying, oven drying at 105 C for 24 hours, and sintering at a 5 C per minute heating rate with a 10-hour holding period. The proposed construction block is the lightest in weight reported to date with a compressive strength of 101 MPa. Such a lightweight construction block with high compressive strength has the potential to revolutionise the construction industry."
Disclaimer: Curated by HT Syndication.
