Bengaluru to Use Ultra High-Performance Fiber Reinforced Concrete Technology for New Elevated Corridors

Bengaluru is set to witness a major advancement in urban infrastructure with the adoption of Ultra High-Performance Fiber Reinforced Concrete (UHPFRC) technology for its proposed elevated corridor projects. The technology will be used for the first time in Karnataka as part of the ambitious plan to construct 11 elevated corridors aimed at easing traffic congestion across the city.

The project is being implemented by B-SMILE, a special purpose vehicle established to accelerate key mobility infrastructure projects in Bengaluru. Officials believe the use of UHPFRC will significantly improve construction quality while reducing project timelines.

According to project authorities, UHPFRC is a highly advanced concrete material capable of withstanding pressures of up to 150 MPa, nearly three times stronger than conventional concrete used in flyovers and elevated structures. Unlike traditional construction methods, the technology requires minimal reinforcement and offers superior crack resistance, making structures more durable and longer lasting.

One of the biggest advantages of the technology is its ability to support longer spans. While conventional flyovers and metro structures typically have spans ranging between 20 and 30 metres, UHPFRC can enable spans of up to 50 metres. This reduces the number of support structures required and improves both construction speed and visual appeal.

The overall project cost is estimated at approximately ₹4,755 crore, including land acquisition and associated expenses. Civil construction costs alone are estimated at ₹3,530 crore. B-SMILE has already floated tenders for multiple flyovers and grade separators under the programme.

In a move aimed at ensuring accountability and quality, the elevated corridor projects will also include a mandatory 10-year maintenance period, making it one of the first major infrastructure initiatives in Bengaluru to adopt such stringent maintenance requirements.

While the project has generated discussion among urban planners and transport experts, authorities maintain that the elevated corridors will play an important role in improving traffic flow and reducing travel times across key routes in Bengaluru. The use of UHPFRC technology is expected to set a new benchmark for future infrastructure projects in Karnataka.