MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202631044675 A) filed by Dr. Sudhir Chandra Sur Institute Of Technology And Sports Complex, Kolkata, West Bengal, on April 8, for 'a self-curing concrete composition and method using biogas slurry extract for enhanced hydration and strength development.'
Inventor(s) include Souradeep Roy; Baibaswata Das; and Krishnendu Kundu.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The invention discloses a sustainable self-curing concrete composition and a method for its production utilizing a refined Biogas Slurry Extract (BSE). The BSE is obtained through a multi-stage process of filtration, high-speed centrifugation, and low-temperature evaporation of anaerobic digestate to isolate biogenic polymers with superior water-retention and slow-release capabilities. When added to concrete at an optimal dosage of 0.5% by weight of cement, the BSE acts as an internal hydration agent, enhancing compressive strength by 6-10% and reducing autogenous shrinkage by 12-18%. The technology effectively reduces the demand for external curing water by 50-90%, mitigates early-age cracking by 22%, and improves overall durability by lowering permeability. This innovation provides a scalable, eco-friendly alternative to synthetic curing agents by valorising organic waste streams."
Disclaimer: Curated by HT Syndication.
