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AAC blocks are eco-friendly and sustainable

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Narayan Saboo, Chairman, Bigbloc Construction, discusses the qualities of AAC blocks and its environmentally friendly properties.

What is the composition of Autoclaved Aerated Concrete (AAC) blocks?
AAC is a lightweight, precast, cellular concrete. It is a green building material composed of fly ash, gypsum, lime, portland cement, water and aluminum powder. AAC blocks are made in rectangular prism shape only.

What is the core functionality of the blocks?
AAC blocks are widely used in the construction of apartments and other types of residential properties, industrial and commercial buildings. Owing to their excellent heat insulation capacity and thermal resistance, AAC blocks find application in interior and exterior construction.

What brings strength and durability to these blocks?
These materials include cement, lime, fly ash, gypsum, aluminum powder and some other additives. The precise combination and proportion of these materials contribute to their overall strength.

How do you ensure quality standards?
We make AAC blocks as per BIS code IS 2185 Part 3, guidelines in IS code to ensure quality standards.

What are the key advantages of using these blocks as building materials?
AAC blocks are eco-friendly and sustainable. They are lightweight, thermally insulated, energy efficient and fire resistant. Their other qualities include acoustics performance, easy workability, design flexibility and faster construction. AAC Blocks are one-third in weight as compared to red bricks thereby reducing the dead load on the building and resulting in huge saving of structural costs. Also, as the size is equivalent to almost nine red bricks, construction is much faster; the labour required is less; joints in the wall are also less thereby resulting in mortar savings, too.

How does it impact the environment?
AAC blocks are eco-friendly and sustainable. They are green lightweight building materials, with less transport cost. This material warms the room during the winter and cools it during the summer, reducing air-conditioning system usage by at least 25 per cent. Non-toxic and pest repellent, they prevent soil erosion and consume less water. Use of red bricks results in an upper layer of soil erosion, which makes the land barren or infertile in the long run.

What innovations can we expect from you?
We are starting with the manufacturing of ALC panels, which is further advancement of technology as ALC panels are a new age building material that is a further advancement of AAC Blocks.
Panels are reinforced with steel and they will make construction much faster, too. Also, we are looking to get many other new age building materials in our partnership with SCG.

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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Concrete

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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Concrete

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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