MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202611028862 A) filed by Malaviya National Institute Of Technology Jaipur on March 11, 2026, for Modified Bitumen Composition Comprising Agricultural Waste And Ldpe Biochar And Applications Thereof.
Inventors include Ghanshyam Balotiya; Arun Gaur; Amit Sain; Prakash Somani; and Ishfaq Ul Abass.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: The present invention relates to a modified bitumen product developed using biochar derived from agricultural waste and low-density polyethylene (LDPE) plastic waste. The biochar is produced through a co-pyrolysis process wherein groundnut shell and LDPE are combined in predetermined weight ratios of 90:10, 80:20, 70:30, and 60:40 under oxygen-limited thermal conditions. The resulting biochar is processed to obtain a fine particle size of less than 75 microns and is incorporated into a base bitumen binder using high-shear mixing, with biochar dosages ranging from 3% to 15% by weight of bitumen. Storage stability evaluation indicates that biochar content beyond 12% results in phase separation; accordingly, a modified binder containing 12% LDPE-based biochar is identified as the optimum composition. The performance of the optimum modified binder is further evaluated through Marshall mix design of Dense Bituminous Macadam (DBM-II), demonstrating a substantial improvement in Marshall stability compared to conventional bitumen.
Disclaimer: Curated by HT Syndication.
