Concrete

IIT Guwahati Develops Radiation-Resistant Cement Mortar

Modified mortar offers structural strength and radiation shielding

Published

7 months ago

March 27, 2026

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Researchers at the Indian Institute of Technology Guwahati (IIT Guwahati) have developed a cement mortar that is stronger, more durable and more effective at blocking harmful radiation for nuclear facilities. The modified mortar is designed to act as both a structural component and a radiation shielding barrier by increasing density and durability to limit radiation penetration. Concrete made with the enhanced mortar is expected to reduce the risk of radiation leakage and to support protective structures over extended periods.

To achieve this, the team incorporated four types of microparticles into the cement mortar: boron oxide, lead oxide, bismuth oxide and tungsten oxide. These microparticles were added in small quantities to assess their impact on compressive strength after 28 days and on the material’s ability to shield mixed radiation fields comprising gamma rays and neutrons. The study reported distinct effects for each microparticle, indicating trade-offs between mechanical strength, workability and radiation attenuation.

Professor Hrishikesh Sharma of the Department of Civil Engineering at IIT Guwahati said the safety of nuclear infrastructure depends on the performance of containment materials under extreme mechanical and radiation environments and that the study showed microparticle modifications can improve structural integrity and shielding. The research offers a framework for developing cement-based materials for nuclear power plants, small modular reactors and medical radiation facilities by enhancing resistance to heat, structural loads and radiation. The study was published in Materials and Structures and was co-authored by Professor Sharma, research scholar Sanchit Saxena and Dr Suman Kumar of CSIR-Central Building Research Institute, Roorkee.

Future work will scale up the developed mortar to a full concrete mix design, conduct structural-level testing of reinforced concrete elements and optimise microparticle dosage to balance mechanical strength, workability, durability and shielding performance. The team is seeking collaborations with nuclear energy agencies, material manufacturers and infrastructure firms for real-world testing and pilot applications. These steps aim to validate performance under simulated field conditions and support safer, more resilient nuclear infrastructure.

Related Topics:cement mortar IIT Guwahati radiation shielding

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JSW Cement commissions additional 1 MTPA grinding unit in Rajasthan

The Nagaur expansion takes JSW Cement’s total grinding capacity to 25.10 MTPA.

Published

3 hours ago

October 8, 2026

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JSW Cement has commissioned an additional 1 million tonne per annum (MTPA) cement grinding unit at its Nagaur Integrated Plant in Rajasthan. The commissioning takes the company’s total cement grinding capacity to 25.10 MTPA.

JSW Cement’s total clinker manufacturing capacity, including its joint venture JSW Cement FZC, now stands at 9.74 MTPA.

The company began operations in North India in March 2026 with the Nagaur Integrated Plant, comprising a 3.30 MTPA clinkerisation unit and a 2.50 MTPA cement grinding unit. With the latest expansion, the plant’s total grinding capacity has increased to 3.50 MTPA.

The additional capacity will cater to cement demand across Rajasthan, Haryana, Punjab and the National Capital Region (NCR). The expansion has been funded through a combination of equity and long-term debt.

During the quarter ended September 30, 2026, JSW Cement also commissioned an Alternate Fuel Handling System and a Waste Heat Recovery System (WHRS) at the Nagaur plant.

Nilesh Narwekar, CEO, JSW Cement, said the additional grinding capacity was a strategic priority for the company’s expansion in North India. He added that the Alternate Fuel Handling System and WHRS were expected to reduce production costs.

Concrete

JSW Cement Boards Approve Proposed Shiva Cement Merger

JSW Cement will issue five shares for every 41 Shiva Cement shares

Published

3 hours ago

October 8, 2026

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The Boards of Directors of JSW Cement and its listed subsidiary Shiva Cement have approved a scheme of arrangement for the amalgamation of Shiva Cement with and into JSW Cement. The proposed merger is intended to create a unified cement platform and generate operational, financial and management synergies.

The consolidation will pool the companies’ financial, managerial, technical, distribution and marketing resources. It will also support backward integration through Shiva Cement’s clinker facility, which is expected to reduce reliance on external procurement and improve supply chain efficiency.

The companies said the transaction would provide greater funding flexibility, reduce financing costs and eliminate inter-company guarantees. It is also expected to simplify the corporate structure by reducing administrative duplication, compliance requirements and consolidation efforts, while aligning the financial statements of both entities.

Under the approved share-exchange ratio, JSW Cement will issue five equity shares with a face value of Rs. 10 each for every 41 equity shares with a face value of Rs. 2 each held in Shiva Cement. The issuance will apply to Shiva Cement shareholders other than JSW Cement and will give the subsidiary’s public shareholders direct ownership in a larger listed company.

The scheme remains subject to approvals from the stock exchanges, the Securities and Exchange Board of India, the National Company Law Tribunal, the Odisha Industrial Infrastructure Development Corporation and other applicable statutory and regulatory authorities. Approval from the companies’ shareholders and creditors may also be required under applicable laws or directions from the tribunal. The transaction is expected to be completed within 12 to 14 months, subject to the timely receipt of these approvals.

Concrete

JSW Cement commissions additional 1 MTPA grinding unit at Nagaur

Published

9 hours ago

October 8, 2026

admin

With this commissioning, JSW Cement’s total cement grinding capacity has increased to 25.10 MTPA,
Mumbai

JSW Cement, one of India’s leading green cement producers and part of the diversified JSW Group, today announced the successful commissioning of an additional 1.00 MTPA cement grinding unit at Nagaur, Rajasthan. The commissioning marks another significant milestone in the Company’s growth strategy.

With this commissioning, JSW Cement’s total cement grinding capacity has increased to 25.10 MTPA, while its total clinker manufacturing capacity, including clinker capacity at its joint venture, JSW Cement FZC, stands at 9.74 MTPA.

JSW Cement had commenced operations in North India in March 2026 with the Nagaur Integrated Plant, comprising a 3.30 MTPA clinkerisation unit and 2.50 MTPA cement grinding unit. With the commissioning of the additional 1.00 MTPA cement grinding unit, the plant’s total cement grinding capacity has increased to 3.50 MTPA, enhancing the company’s ability to cater to the growing cement demand across Rajasthan, Haryana, Punjab and the National Capital Region (NCR). The expansion has been funded through a strategic mix of equity and long-term debt.

During the quarter ended 30th September 2026, JSW Cement has also commissioned the Alternate Fuel Handling System and the Waste Heat Recovery system (WHRS) at the Nagaur Integrated Plant.

Nilesh Narwekar, CEO, JSW Cement, said: “The commissioning of additional 1.00 MTPA grinding capacity at Nagaur is a key strategic priority for us and will accelerate JSW Cement’s expansion into North India. We look forward to servicing the growing needs of the region and contributing to the economic growth of Rajasthan, Haryana, Punjab and the NCR area. I am delighted to share that the company has commissioned this grinding unit within the expected timeline, showcasing our project execution capabilities. Further, the Alternate Fuel Handling System and the Waste Heat Recovery system (WHRS) are expected to substantially reduce our production costs going forward.”