**Executive Summary**
On January 24, 2026, CSIR-CRRI and JSW Steel Limited, Salem Works, entered a strategic partnership to use steel slag in road construction in Tamil Nadu. The collaboration aims to convert steel slag into valuable construction material, aligning with the "From Waste to Wealth" national vision. This initiative will enable the first implementation of Steel Slag Road technology in Tamil Nadu.
**Key Points / Main Content**
* **Partnership Purpose and Goals:**
* Utilize steel slag, an industrial by-product, in the construction of durable and eco-friendly roads.
* Promote the scientific valorization of steel slag and its effective utilization in steel slag road construction.
* Contribute to India's circular economy, resource efficiency, and green infrastructure goals.
* **Project Details:**
* Project Title: "Development of Customized Steel Slag Valorisation Process for Techno-economic Conversion of EOF and LRF Steel Slag for Various Road Applications at JSW Salem Works."
* Focuses on converting Electric Optimization Furnace (EOF) and Ladle Refining Furnace (LRF) steel slag into processed slag aggregates suitable for use in bituminous road construction.
* Involves laboratory characterization of steel slag, development of customized processing protocols, construction of a demonstration road section near Salem, and long-term performance monitoring to validate field performance.
* **Significance and Alignment:**
* Aligns with Government of India policies on resource efficiency, reduction of carbon footprint, and large-scale adoption of green technologies.
* Aligns with national priorities such as Aatmanirbhar Bharat, sustainable development, and circular economy practices.
* Aims to minimize industrial waste, reduce dependence on natural aggregates, and lower the carbon footprint of road construction.
* **Implementation and Expected Outcomes:**
* Build steel slag roads in Tamil Nadu.
* Serve as a replicable model for other steel plants.
* Support wider adoption of steel slag in road infrastructure across the country.
**Impact Analysis**
**JSW Steel Limited, Salem Works**
* **Impact:** The company is a key partner in the project, utilizing its steel slag for road construction, aligning with sustainable practices and government initiatives.
* **Action Required:** Provide steel slag, participate in the development of customized processing protocols, assist in the construction of a demonstration road section near Salem.
**CSIR-CRRI**
* **Impact:** CSIR-CRRI provides technical guidance and expertise in steel slag road technology, contributing to the project's success.
* **Action Required:** Conduct laboratory characterization of steel slag, develop customized processing protocols, monitor long-term field performance.
**Tamil Nadu State Government**
* **Impact:** Benefits from the implementation of Steel Slag Road technology, leading to more durable and eco-friendly roads in the state.
* **Action Required:** Support the initiative by providing necessary approvals and facilitating the construction of steel slag roads.
**Other Steel Plants in India**
* **Impact:** Can replicate the model and adopt steel slag road construction technology, promoting sustainability and resource efficiency.
* **Action Required:** Explore partnerships with CSIR-CRRI and other relevant stakeholders to implement steel slag road construction in their respective regions.
**Citizens of Tamil Nadu**
* **Impact:** Benefit from durable, eco-friendly roads constructed using steel slag, resulting in improved infrastructure and reduced environmental impact.
* **Action Required:** None.
Key Entities Referenced
CSIR-Central Road Research Institute (CSIR-CRRI): Indian national laboratory that partnered with JSW Steel to utilize steel slag in road construction.
JSW Steel Limited, Salem Works: A steel manufacturing plant partnering with CSIR-CRRI to implement steel slag road technology.
Tamil Nadu: Indian state where the steel slag road construction project will be implemented.
From Waste to Wealth: National vision to convert industrial waste into valuable construction material for road infrastructure.
Steel Slag Road® technology: Technology developed by CSIR-CRRI to construct roads using steel slag.
Ministry of Science & Technology
From Waste to Wealth: CSIR-CRRI and JSW
Steel, Salem Partner to Build Steel Slag Roads in
Tamil Nadu
प्रव तथ: 25 JAN 2026 5:19PM by PIB Delhi
On 24 January 2026, in a significant step towards promoting sustainable infrastructure and the circular
economy, the CSIR–Central Road Research Institute (CSIR-CRRI) and JSW Steel Limited, Salem Works
have entered into a strategic partnership to utilize steel slag—an industrial by-product—in the construction
of durable and eco-friendly roads in Tamil Nadu.
The collaboration aims to convert steel slag, traditionally considered industrial waste, into a valuable
construction material for road infrastructure, thereby exemplifying the national vision of “From Waste to
Wealth.” The initiative aligns with Government of India policies on resource efficiency, reduction of
carbon footprint, and large-scale adoption of green technologies in public infrastructure.
The collaboration aims to promote the scientific valorisation of steel slag and its effective utilization in
steel slag road construction, contributing to India’s circular economy, resource efficiency, and green
infrastructure goals. JSW Steel Limited, Salem Works, one of the major steel manufacturing units of the
JSW Group entered into this partnership with CSIR-CRRI under a sponsored research project titled
“Development of Customized Steel Slag Valorisation Process for Techno-economic Conversion of EOF
and LRF Steel Slag for Various Road Applications at JSW Salem Works.” The project focuses on
converting Electric Optimization Furnace (EOF) and Ladle Refining Furnace (LRF) steel slag into
processed slag aggregates suitable for use in bituminous road construction.
The MoA signing ceremony was held at JSW Steel Limited, Salem Works, in the distinguished presence
of Dr. N. Kalaiselvi, Director General, CSIR and Secretary, Department of Scientific and Industrial
Research (DSIR). Addressing the gathering, the DG, CSIR highlighted the national and global impact of
CSIR-CRRI’s Steel Slag Road® technology, which has already been successfully implemented across
multiple states in India by leading steel producers such as AMNS India, Tata Steel, JSW Steel, Rashtriya
Ispat Nigam Limited (RINL), Jindal Steel, and Arjas Steel, under CSIR-CRRI’s technical guidance. She
noted that the present initiative would enable the first implementation of Steel Slag Road technology in
the state of Tamil Nadu.
The agreement was formally exchanged between Dr. Chalumuri Ravi Sekhar, Director, CSIR-CRRI, and
Shri B. N. S. Prakash Rao, Executive Vice President and Plant Head, JSW Steel Salem Works, marking
the official commencement of the project. Senior officials from CSIR-CRRI, including Dr. Vinod Karar,
Head, PME Division, and Mr. Satish Pandey, Senior Principal Scientist and inventor of the Steel Slag
Road® technology, were present at the ceremony. The event was also attended by senior leadership from
JSW Steel Salem Works, reflecting a strong institutional commitment from both organizations.
The project will involve laboratory characterization of steel slag, development of customized processing
protocols, construction of a demonstration road section near Salem, and long-term performance
monitoring to validate field performance. By reducing dependence on natural aggregates, minimizingindustrial waste, and lowering the carbon footprint of road construction, the initiative aligns with national
priorities such as Aatmanirbhar Bharat, sustainable development, and circular economy practices. The
partnership is expected to serve as a replicable model for other steel plants and support wider adoption of
steel slag in road infrastructure across the country.*****
NKR/AK
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