MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641068438 A) filed by Dayananda Sagar College Of Engineering on June 01, 2026, for A Hybrid Bio-Geo Stabilization Method For Expansive Soils Using Alkali-Treated Crumb Rubber And Microbially Induced Calcite Precipitation.
Inventors include Sridhar H N; Dr. Shiva Kumar G; Ujwal M S; Dr. H K Ramaraju; Dr. B. R. Manjunatha; and Dr. Vinay A.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present invention relates to a sustainable soil stabilization method for expansive soils using a hybrid approach combining alkali-treated crumb rubber (5–10%) and microbially induced calcite precipitation (MICP) employing Sporosarcina pasteurii. The alkali treatment enhances the surface reactivity of crumb rubber, improving its bonding with soil particles, while MICP facilitates calcite precipitation that binds soil grains. The synergistic interaction results in improved ductility, reduced brittleness, and enhanced compressive strength of the treated soil. The method offers an eco-friendly alternative to conventional stabilizers like lime and cement, while simultaneously addressing waste tire disposal issues. The stabilized soil is suitable for use in subgrades, embankments, and foundations in civil engineering applications. The proposed method provides a balanced mechanical response suitable for sustainable geotechnical applications.
Disclaimer: Curated by HT Syndication.
