The works include widening of two-lane roads into four-lane roads, upgrading intermediate lanes into two-lane roads with paved shoulders, and laying of new roads.
Contractors working with the Greater Bengaluru Authority said supplies of tar and bitumen have been inconsistent over the past few days, delaying scheduled maintenance works.
A 100-metre trial stretch using bio-bitumen has already been successfully laid on the Jorabat–Shillong Expressway (NH-40) in Meghalaya, demonstrating its feasibility on the ground, he said.
CRRI turns paddy stubble into bio-bitumen, successfully trialled in Guwahati and Nagpur-Mansar, tackling smog and pollution in North India, Hemant Kumar Rout finds out more.
