MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202641127270 A) filed by Malla Reddy Mr Deemed To Be University; Dr. J. Selwyn Babu; and Mr. A. Naga Saibaba on October 26, 2026, for Jointless Concrete Pavement Structure With Pre-Stressed Tendons For Reduced Maintenance.
Inventors include Dr. J. Selwyn Babu; Mr. A. Naga Saibaba; Dr. Ravinuthala Prasanna Kumar; Dr. V. Gajendra; Mr. Erram Rakesh Reddy; Mr. G. Srinivas; and Dr. Govind Goud Kotha.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: The present invention relates to a jointless concrete pavement structure with pre-stressed tendons for reduced maintenance. The structure comprises a subgrade, a stabilised base, a low-friction interlayer and a continuous concrete slab free of intermediate transverse contraction joints along a pre-stressed section length. Longitudinal, and optionally transverse, pre-stressing tendons housed in corrosion-protected ducts are embedded in the slab and stressed against anchorage assemblies to impart a residual compressive stress that offsets traffic, shrinkage and thermal tensile stresses, thereby suppressing cracking. Terminal joint assemblies at the section ends accommodate slab movement. A staged stressing sequence and optional embedded sensors permit verification of the retained pre-stress. By eliminating vulnerable joints, the invention reduces joint sealing, dowel repair and slab replacement, shortens traffic closures, improves ride quality and lowers the lifecycle cost of highway and heavy-duty pavements.
Disclaimer: Curated by HT Syndication.
