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An subordinate prof from the Indian Institute of Technology (IIT) Roorkee has written to the Karnataka authorities to conception a proceedings roadworthy conception utilizing bio-bitumen technology, claiming that the innovation could trim roadworthy operation costs by up to 20% portion offering biology benefits.
The projected bio-binder is produced by blending 25% Class C sugarcane molasses with 75% virgin bitumen done a controlled chemic absorption process. This volition trim the usage of bitumen and besides over-reliance connected it.
According to Nikhil Saboo, subordinate prof successful the Department of Civil Engineering, IIT Roorkee, helium has been researching with a squad and processing the exertion for the past 5 years, with extended laboratory investigations, show testing, and tract implementation already completed. The tract implementation has besides yielded affirmative results successful different states, according to him.
The connection has travel astatine a clip erstwhile the outgo of bitumen has accrued multifold pursuing the West Asia crisis. The complaint of bitumen is yet to stabilise, arsenic it is inactive fluctuating astir ₹60,000 per tonne, portion the outgo was ₹45,000 earlier the situation began.
In addition, civic agencies successful Bengaluru person been experimenting and adopting caller technologies related to roadworthy construction. Recently, the B-SMILE announced that for the archetypal clip successful Karnataka, Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) exertion would beryllium utilized to conception elevated corridors.
In a missive addressed to the Public Works Department (PWD) and the Chief Minister’s Office, Mr. Saboo sought the State government’s support for a aviator task to show the viability of the technology.
Highlighting the economical advantages of the technology, Mr. Saboo said the usage of sugarcane molasses, a by-product of the sweetener industry, could trim binder costs significantly. While virgin bitumen presently costs astir ₹85 per kg, the terms of molasses typically ranges betwixt ₹10 and ₹15 per kg. Since nary specialised infrastructure is required, the superior outgo of adopting the exertion would beryllium none, helium noted.
“The exertion tin beryllium readily adopted utilizing existing drum premix works facilities without requiring immoderate further infrastructure,” the missive stated, adding that the cardinal operational request is maintaining due accumulation temperatures during the mixing process.
The missive besides pointed retired that India is the world’s second-largest shaper of sugarcane molasses, with yearly accumulation estimated astatine 13 to 14 cardinal tonnes, ensuring capable availability of the earthy material.
Speaking to The Hindu, Mr. Sahoo said the exertion has already been tested successful 3 tract trials. Among them is simply a 650-metre trial agelong connected National Highway 709AD successful Uttar Pradesh, constructed successful November 2022. It besides includes 2 stretches successful Uttarakhand.
“The roadworthy section, which utilized bio-bitumen successful the aboveground layer, has performed satisfactorily and remained maintenance-free for much than 3 years contempt carrying postulation loads of astir 200 cardinal modular axles,” helium said.
In the letter, the subordinate prof has besides offered implicit method enactment from the probe squad astatine the IIT Roorkee for tract implementation and show valuation of the projected proceedings conception successful Karnataka. Citing the exertion arsenic sustainable and cost-effective, the prof requested the State authorities to see an aboriginal aviator task to measure the technology’s applicable feasibility nether section conditions.
A authorities root adjacent to the improvement told The Hindu that the PWD section was funny successful the task and would sermon further astir piloting the technology.
