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Currently, we are not using fly ash in the cement and concrete blend due to regulatory issues

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Sudhir Hoshing, CEO-Roads, Reliance Infrastructure Though the regulatory systems are yet to evolve and embrace the new construction material, fly ash has already proved its worth in several large-scale construction projects all over the world. Fly ash has been used in tall building structures like the Petronas Towers in Malaysia. Eurotunnel, the second largest rail tunnel had fly ash mixed in the concrete. In India it has been used in Bhakhra Dam, Rihand Dam, Rajasthan Atomic Power Plant, private builders like Hiranandani Developers, DLF have been using fly ash in residential buildings. ICR interacts with Sudhir Hoshing, CEO-Roads, Reliance Infrastructure, to gauge how the trend is catching up in India.

What are the benefits of blending fly ash in cement?
Fly ash, being a by-product of coal combustion, offers environmental advantages by diverting the material from the waste stream, reducing the energy investment in processing virgin materials, conserving virgin materials, and by allaying pollution.

It also improves the performance and quality of concrete as it:

  • Affects the plastic properties of concrete by improving workability, reducing water demand, reducing segregation and bleeding, and by lowering heat of hydration.
  • Fly ash increases strength, reduces permeability, reduces corrosion of reinforcing steel, increases sulphate resistance, and reduces alkali-aggregate reaction.
  • Fly ash reaches its maximum strength more slowly than concrete made with only Portland cement.
  • Reduces requirement of cement for same strength of concrete thus making the mix economical.
  • No special technique is needed to use fly ash blended concrete. It is to be used as per standard established method.

Does blending vary, based on the type of fly ash or application?
Based on the type of coal used, two different types of fly ashes are produced. Anthracite and bituminous coal produces fly ash classified as Class F. Class C fly ash is produced by burning lignite or sub-bituminous coal. For sulfate environments, only Class F fly ash will be permitted and under no circumstances will Class C fly ash be used.

Class F fly ash will typically require an air entraining agent to be added. Class C fly ash will not.

How is the availability of good quality fly ash in the country?
In India fly ash is being used to produce fly ash based PPC. Because in India the power plants basically use lignite and sub-bituminous coal, the Class F fly ash is relatively easy to obtain.

Do you use fly ash in your cement/concrete blends? To what extent?
Currently, we are not using fly ash in cement/concrete blends due to regulatory issues. However, fly ash is permitted for use in embankments, earthwork, etc. Generally, 15 to 28 per cent fly ash is used in such applications.

No special technique is needed to use fly ash blended concrete.

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Concrete

Nuvoco Vistas Reports Record Q2 EBITDA, Expands Capacity to 35 MTPA

Cement Major Nuvoco Posts Rs 3.71 bn EBITDA in Q2 FY26

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Nuvoco Vistas Corp. Ltd., one of India’s leading building materials companies, has reported its highest-ever second-quarter consolidated EBITDA of Rs 3.71 billion for Q2 FY26, reflecting an 8% year-on-year revenue growth to Rs 24.58 billion. Cement sales volume stood at 4.3 MMT during the quarter, driven by robust demand and a rising share of premium products, which reached an all-time high of 44%.

The company continued its deleveraging journey, reducing like-to-like net debt by Rs 10.09 billion year-on-year to Rs 34.92 billion. Commenting on the performance, Jayakumar Krishnaswamy, Managing Director, said, “Despite macro headwinds, disciplined execution and focus on premiumisation helped us achieve record performance. We remain confident in our structural growth trajectory.”

Nuvoco’s capacity expansion plans remain on track, with refurbishment of the Vadraj Cement facility progressing towards operationalisation by Q3 FY27. In addition, the company’s 4 MTPA phased expansion in eastern India, expected between December 2025 and March 2027, will raise its total cement capacity to 35 MTPA by FY27.

Reinforcing its sustainability credentials, Nuvoco continues to lead the sector with one of the lowest carbon emission intensities at 453.8 kg CO? per tonne of cementitious material.

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Jindal Stainless to Invest $150 Mn in Odisha Metal Recovery Plant

New Jajpur facility to double metal recovery capacity and cut emissions

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Jindal Stainless Limited has announced an investment of $150 million to build and operate a new wet milling plant in Jajpur, Odisha, aimed at doubling its capacity to recover metal from industrial waste. The project is being developed in partnership with Harsco Environmental under a 15-year agreement.

The facility will enable the recovery of valuable metals from slag and other waste materials, significantly improving resource efficiency and reducing environmental impact. The initiative aligns with Jindal Stainless’s sustainability roadmap, which focuses on circular economy practices and low-carbon operations.

In financial year 2025, the company reduced its carbon footprint by about 14 per cent through key decarbonisation initiatives, including commissioning India’s first green hydrogen plant for stainless steel production and setting up the country’s largest captive solar energy plant within a single industrial campus in Odisha.

Shares of Jindal Stainless rose 1.8 per cent to Rs 789.4 per share following the announcement, extending a 5 per cent gain over the past month.

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Vedanta gets CCI Approval for Rs 17,000 MnJaiprakash buyout

Acquisition marks Vedanta’s expansion into cement, real estate, and infra

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Vedanta Limited has received approval from the Competition Commission of India (CCI) to acquire Jaiprakash Associates Limited (JAL) for approximately Rs 17,000 million under the Insolvency and Bankruptcy Code (IBC) process. The move marks Vedanta’s strategic expansion beyond its core mining and metals portfolio into cement, real estate, and infrastructure sectors.

Once the flagship of the Jaypee Group, JAL has faced severe financial distress with creditors’ claims exceeding Rs 59,000 million. Vedanta emerged as the preferred bidder in a competitive auction, outbidding the Adani Group with an overall offer of Rs 17,000 million, equivalent to Rs 12,505 million in net present value terms. The payment structure involves an upfront settlement of around Rs 3,800 million, followed by annual instalments of Rs 2,500–3,000 million over five years.

The National Asset Reconstruction Company Limited (NARCL), which acquired the group’s stressed loans from a State Bank of India-led consortium, now leads the creditor committee. Lenders are expected to take a haircut of around 71 per cent based on Vedanta’s offer. Despite approvals for other bidders, Vedanta’s proposal stood out as the most viable resolution plan, paving the way for the company’s diversification into new business verticals.

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