MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541122455 A) filed by Shruthi H G; Atme College Of Engineering, Mysuru; and Manuvijay, Mysuru, Karnataka, on Dec. 5, 2025, for 'performance assessment of nano-silica and metakaolin blended high-strength self-compacting concrete.'
Inventor(s) include Shruthi H G; Atme College Engineering, Mysuru; Manuvijay; Naveen Kumar S M; Kavan M R; and Dr Madhusudhan K V.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "Self-compacting concrete (SCC) represents a modern advancement in concrete technology, characterized by its ability to flow through heavily congested reinforcement zones and achieve full compaction under its own weight without segregation or bleeding. In this study, the influence of nano-silica (NS) and metakaolin (MK) on both the fresh and hardened properties of SCC has been evaluated. The investigation particularly focuses on workability characteristics in the fresh state, and mechanical as well as durability behaviour in the hardened state. The incorporation of nano-silica and metakaolin, along with compatible chemical admixtures, resulted in noticeable improvements in strength and durability parameters. NS and MK were introduced as partial replacements of cement at dosages of 1% and 10% by weight, respectively. The results indicate that an increase in nano-silica from 1% to 3% enhances compressive strength, with the optimal mechanical performance observed at 1% NS combined with 10% MK. Similarly, the fresh properties demonstrated superior flowability at this replacement level compared to other combinations. Beyond these limits, a reduction in strength performance was recorded. The study further highlights the behaviour of SCC incorporating NS and MK through durability assessments and microstructural examination."
Disclaimer: Curated by HT Syndication.
