calender_icon.png 10 August, 2025 | 2:31 AM

Andhra experiments with steel slag roads

05-08-2025 12:00:00 AM

kiranmai tutika | amaravati

In a pioneering move towards sustainable infrastructure and smart governance, the Andhra Pradesh government has launched an experimental road repair project using steel slag, a by-product of steel manufacturing. The initiative was formally launched by Minister for Roads, Buildings, Investments, and Infrastructure, BC Janardhan Reddy, near the Secretariat in Mandadam village.

This innovative effort is inspired by Chief Minister N. Chandrababu Naidu’s directive to deliver high-quality roads using advanced technologies that ensure durability, cost-efficiency, and environmental responsibility. The project is part of the broader “Waste to Wealth” vision, aimed at repurposing industrial waste for developmental use. “Our goal is to provide better roads to the people of Andhra Pradesh by adopting novel and eco-friendly solutions like steel slag,” the minister stated at the event.

At the heart of this experiment is Ecofix, a specially developed mix made from steel slag and bitumen. Unlike traditional repair materials, Ecofix does not require heating and can be applied directly, even in wet conditions, making it ideal for the monsoon season. This cold-mix solution is not only user-friendly and time-efficient but also significantly reduces fuel consumption and emissions, contributing to environmental conservation.

Experts from the Central Road Research Institute (CRRI) have tested Ecofix and rated it superior to conventional materials in terms of durability and cost-effectiveness. Its ability to set quickly, resist water damage, and reduce long-term maintenance costs makes it a promising alternative for pothole repairs. “By converting industrial waste into valuable infrastructure materials, we are setting a new standard in sustainable development,” Minister Reddy added.

The state government views this initiative as a significant step in integrating circular economy principles into public works. Apart from reducing environmental pollution caused by steel slag dumping, the use of Ecofix also promises financial savings through reduced material and operational costs.

If the pilot proves successful, officials say, steel slag-based repairs could be expanded across municipalities and highways statewide. As road engineers and technical experts monitor the pilot closely, Andhra Pradesh stands poised to become a national model in turning industrial waste into public wealth.