MUMBAI, India, Aug. 8 -- Intellectual Property India has published a patent application (202421008425 A) filed by Jsw Cement Limited, Maharashtra, on Feb. 7, 2024, for 'a durable low carbon cement (dlcc) and a process to produce the same.'
Inventor(s) include Dr. Jagabandhu Kole; Dr. Dilip Makhija; Mr. Manoj Rustagi; Mr. Anshuman Dowerah; Mr. Amol Satpute; Mr. J Suresh; and Dr. Priyapratim Patra.
The application for the patent was published on Aug. 8, under issue no. 32/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to development of Durable Low Carbon Cement (DLCC) by minimum usage of Portland cement clinker. The effect of activator clinker and anhydrite gypsum on the hydration rate, physical and strength properties are studied. The primary ingredient of the cement is GGBS ( 80%) where the hydration rate and strength properties are influenced by synergistic effect of anhydrite gypsum and the activator clinker. The physical and mechanical properties of different cement compositions are studied. The conversion of gypsum hydrate to anhydrite after calcination is studied by X-ray diffraction. Heat of hydration study in Isothermal calorimeter confirms low heat of hydration and low temperature rise inDLCC as compared to Portland cement. Absence of sulphate depletion peak in heat of hydration curve indirectly confirms that ettringite remains a stable phase in DLCC. The compressive strength is dependent on cement composition, anhydrite formation and blaine fineness of cement. The compressive strength of DLCC based concrete is increasing with time. DLCC based concrete has good compatibility with conventional concrete admixtures and concrete properties like workability and strength can be easily enhanced with admixtures."
Disclaimer: Curated by HT Syndication.
