MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202641081594 A) filed by Vallurupalli Nageswara Rao Vignana Jyothi Institute Of Engineering Technology on July 02, 2026, for Sustainable High-Strength Concrete Composition With Partial Replacement Of Natural Coarse Aggregate By Tandoor Stone Waste.
Inventors include Dr. G. Lalitha; and M. Vinod Kumar.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The sudden depletion of natural aggregates and escalating environmental concerns have led to the use of other types of waste in concrete production. This study examines the performance of M50 grade concrete by substituting natural coarse aggregate with tandoor stone (TSW) at replacement levels of 0%, 10%, 20%, 30%, and 40%. The physical properties of materials were evaluated before casting. The specific gravity values were found to be 3.13 for cement,2.85 for GGBS, 2.60 for fine aggregate, 2.70 for natural coarse aggregate, and 2.61 for TSW. The fineness modulus of normal Coarse, TSW, and fine aggregate were 5.1, 7.68, and 2.36, respectively. Concrete specimens were tested for compressive strength, split tensile strength, and flexural strength at 7 and 28 days. The experimental results indicate that strength properties improve with increasing TSW replacement up to 30% replacement. At 30%, the concrete exhibited optimum performance with enhanced compressive, tensile, and flexural strengths compared to conventional concrete. Beyond 30% replacement, a reduction in strength. Additionally. The study concludes that Tandoor Stone Waste can effectively replace natural coarse aggregate up to 30% in M50 grade concrete, promoting sustainable construction while maintaining structural performance. Therefore, the “Development of Sustainable Concrete with Tandoor Stone Waste and Ground Granulated Blast Furnace Slag (GGBS)” presents a sustainable and efficient solution for construction in Stone industry locations while also utilizing industrial by-products to reduce environmental impact.
Disclaimer: Curated by HT Syndication.
