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ACC Ltd: Marching ahead

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ACC Ltd is one of the front runners in the cement industry in India and produces some of the best quality cement in the country. It has a significant market share in the segments of housing, real estate, infrastructure and other development projects. With more and more developmental projects coming up, the profit and the market share of the company is expected to rise at a considerable rate.
In an era when mergers and acquisition were unknown, 10 cement companies belonging to the Tatas, Khataus, Killick Nixon and F E Dinshaw came together in the year 1936 and merged into a single entity, which is today known as ACC Ltd. The company has a pan-India presence, with operation spread across the country with 14 modern cement factories having a total installed capacity of 22.4 MTPA, a string of 20 sales offices and a countrywide distribution network of over 9,000 dealers. It has a workforce of more than 10,000 persons.

ACC has been credited of introducing many firsts in India. In 1947, India’s first indigenous cement plant was built by at Chaibasa by ACC. The company commissioned the country’s first million tonne kiln at Wadi in 1982, and has erected the world’s largest cement kiln with a daily capacity of 12,500 tonne. From a production capacity of one million tonne per annum in 1936, the company has achieved a capacity of 22.5 MTPA. ACC also set many trends in the cement industry. One of the most significant was the introduction of blended cements. It used industrial waste like slag and fly ash, which helped in lowering greenhouse emission and conserving mineral wealth.

Products offered

The company manufactures 43 Grade Cement (OPC 43 Grade), 53 Grade Cement, Fly-ash based Portland Pozzolana Cement, and Portland Slag Cement. The OPC 43 Grade is the most commonly used cement in all constructions including plain and reinforced cement concrete, brick and stone masonry, floors and plastering. It is also used in the finishing of all types of buildings, bridges, culverts, roads, water retaining structures, etc. It has surpassed BIS Specifications (IS 8112-1989 for 43 grade OPC) on compressive strength levels. The 53 Grade Cement is an Ordinary Portland Cement which surpasses the requirements of IS: 12269-53 Grade. It is produced from high quality clinker ground with high purity gypsum. It provides high strength and durability to structures because of its optimum particle size distribution, superior crystalline structure and balanced phase composition. The fly-ash based Portland Pozzolana Cement is special blended cement, produced by inter-grinding higher strength ordinary Portland cement clinker with high quality processed fly ash-based on norms set by the ACC’s R&D division. This unique, value-added product has hydraulic binding properties not found in ordinary cements. The Portland Slag Cement is slag-based blended cement that imparts strength and durability to all structures. It is manufactured by blending and inter-grinding OPC clinker and granulated slag in suitable proportions as per norms of consistent quality. PSC has many superior performance characteristics which give it certain extra advantages when compared to ordinary Portland cement. The PSC is eco-friendly cement as reduces CO2 emissions and helps in conserving energy.

Plants

The cement plants of ACC are located in various regions of the country in a number of states. The gadgets and equipment are of high standards and comply with the international standards. Presently there are around 15 cement plants of ACC which cater to the different market segments of the country. The cement plants work in coordination with each other and also independently to increase the market share. All these cement plants use cutting edge technologies and services are equipped with advanced technological facilities which make them completely environment-friendly. The plants use some of the sophisticated pollution control devices in various parts such as raw mills, power plants, cement kilns, coolers and other equipments. In addition, the mining technologies that have been implemented in the cement plants of ACC are also based on environment safeguard norms. ACC’s cement plants consist of high quality Zero Water Discharge facilities which help in proper water management. The water that is used in the plant for the process of industrial cooling is recycled by the use of tanks, water ponds and cooling towers. Through this process, the company has been successful in water harvesting.

Subsidiary and associates

The subsidiary and associates of the company are ACC Concrete Ltd, ACC Mineral Resources Ltd, Bulk Cement Corporation (India) Ltd, National Limestone Company Pvt Ltd and Encore Cement & Additives Private Ltd. ACC set up India’s first commercial Ready Mix Concrete (RMX) plant in Mumbai in 1994. Today this business has been re-organised as a separate company called ACC Concrete Ltd which is one of the largest manufacturers of RMX in India with over 55 modern plants in major cities such as Mumbai, Bangalore, Kolkata, Chennai, Delhi, Hyderabad, Goa, Pune and Ahmedabad. ACC’s wholly owned subsidiary, The Cement Marketing Company of India Ltd, was renamed as ACC Mineral Resources Ltd (AMRL) in May 2009 with an objective of securing valuable mineral resources, such as coal for captive use. ACC Mineral Resources Ltd has entered into joint venture arrangements for prospecting, exploration and mining coal from the coal blocks in Madhya Pradesh and West Bengal. The company is also exploring other opportunities for securing additional coal and gypsum resources in India and abroad. The Bulk Cement Corporation (India) Ltd is situated at Kalamboli, Navi Mumbai and caters to bulk cement requirements. It has two cement storage silos with a capacity of 5,000 tonne each. The plant receives cement in bulk from ACC plants at Wadi. The plant has its own special purpose railway wagons and rakes and its own railway siding. A first of its kind in India, it is equipped with all the facilities required by increasingly sophisticated construction sites in a bustling metropolis, including a laboratory, a fleet of specialised trucks and site silos for the convenience of customers and is capable of offering loose cement in bulk-tanker vehicles as well as packed cement in bags of varying sizes from 1 ton down to 25 kg bags. It is situated strategically on the outskirts of Mumbai, just off the Mumbai-Pune Expressway and is spread over 30 acres of land. ACC acquired 100 per cent of the equity of Lucky Minmat Pvt Ltd. This company holds limestone mines in the Sikar district of Rajasthan, and helps supplement limestone supply to the Lakheri Plant. National Limestone Company Pvt Ltd is a wholly owned subsidiary and is engaged in the business of mining and sale of limestone. It holds mining leases for limestone in the state of Rajasthan. ACC acquired 100 per cent of the financial equity of Encore Cement & Additives Pvt Ltd which is a slag grinding plant in Vishakhapatnam in coastal Andhra Pradesh. This company became a wholly-owned subsidiary of ACC in January 2010.

Corporate Social Responsibly

The CSR activities of ACC revolves around the underprivileged community that lives in the immediate vicinity of cement plants and is thus more dependent on their welfare. The range of activities begins with extending educational and medical facilities and goes on to cover vocational guidance and supporting employment-oriented and income-generation projects like agriculture, animal husbandry, cottage industries by developing local skills, using local raw materials and helping create marketing outlets. At all the cement factories of ACC the amenities and facilities are shared with members of the local community. This includes sharing education and medical facilities, sports and recreation. The company also shares access to bore wells, drinking water and the usage of colony roads. In its endeavor towards greenery, the company has also started various types of afforestation, horticulture and tree planting programmes near its cement plants. It not only reduces pollution but also helps conserve the mineral resources. The vacant spaces in the mines and the cement plans are being utilised for the purpose of planting of trees. In cement plants at Chaibasa, Kymore, Jamul and Gagal, greenery has been added to around 40 per cent of the total area which is around 10 per cent more than the normal norms that has been set. The management of these plants is stressing on the green belt development programmes. Due to the high production as well as the dedicated effort towards maintaining ecological balance and nature conservation, the company and its cement plans have been the recipient of a number of prestigious awards.

Awards & Accolades

ACC was the first recipient of ASSOCHAM’s first ever National Award for outstanding performance in promoting rural and agricultural development activities in 1976. Decades later, PHD Chamber of Commerce and Industry selected ACC as winner of its Good Corporate Citizen Award for the year 2002. Over the years, the company has received many awards and felicitations for achievements in rural and community development, safety, health, tree plantation, afforestation, clean mining, environment awareness and protection.

The Wadi cement plant of ACC Limited, in India’s southern state of Karnataka, now enjoys the distinction of being the world’s largest cement plant. The company recently completed this challenging integrated cement project in Karnataka comprising an expanded clinkering line of 12,500 TPD at Wadi together with two satellite cement grinding plants manufacturing Portland Slag cement and flyash based Portland Pozzolana Cement.

All operations at Wadi are now mammoth in scale and setting new trends and benchmarks – the largest limestone mining operations, the largest captive power plant in the industry, largest in inward and outbound logistics and the largest in bulk cement operations. The project reinforces ACC’s commitment to environment conservation in more ways than one. The plant incorporates sophisticated environment management systems and equipment that are designed to maintain very high levels of emission control.

Marching ahead With the government’s determined focus on infrastructure development and an optimistic outlook for overall GDP growth, the demand for cement will receive a considerable boost. The future for ACC looks bright and it is poised to grow at a much faster rate in coming decades due to its strong pan India presence, well entrenched dealership network, technical excellence, human resources, brand equity and market growth. Awards received by ACC National Award for Excellence in Water Management by Confederation of Indian Industry (CII)

  • Outstanding Corporate Vision, Triple Impact Business Performance Social & Environmental Action and Globalisation for 2009-10 from Federation of Indian Chambers of Commerce and Industry
  • Asia Pacific Entrepreneurship Award in two categories, Green Leadership and Community Engagement by Enterprise Asia.
  • Indira Priyadarshini Vrikshamitra Award by The Ministry of Environment and Forests for ?extraordinary work? carried out in the area of afforestation.
  • Subh Karan Sarawagi Environment Award – by The Federation of Indian Mineral Industries for environment protection measures.
  • Drona Trophy – By Indian Bureau of Mines for extra ordinary efforts in protection of Environment and mineral conservation in the large mechanized mines sector.
  • Indira Gandhi Memorial National Award – for excellent performance in prevention of pollution and ecological development
  • Excellence in Management of Health, Safety and Environment : Certificate of Merit by Indian Chemical Manufacturers Association
  • Good Corporate Citizen Award – by PHD Chamber of Commerce and Industry
  • FIMI National Award – for valuable contribution in Mining activities from the Federation of Indian Mineral Industry under the Ministry of Coal.
  • Rajya Sthariya Paryavaran Puraskar – for outstanding work in Environmental Protection and Environment Performance by the Madhya Pradesh Pollution. Control Board.
  • National Award for Fly Ash Utilisation – by Ministry of Power, Ministry of Environment & Forests and Dept of Science & Technology, Govt of India – for manufacture of Portland Pozzolana Cement.

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Economy & Market

Fornnax Names Lukas Baur as Authorised Service Partner to Bolster EU Operations

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Strapline: Fornnax Technology has appointed NOBA Maschinenservice’s Lukas Baur as its authorised service partner for the European Union, strengthening its commitment to delivering fast, reliable, and localised after-sales support across the region.

Fornnax Technology, a leading manufacturer of industrial shredding solutions, has announced the appointment of Mr. Lukas Baur of NOBA Maschinenservice as its authorised service partner for the European Union. The partnership, formalised under the authorisation of Fornnax CEO Mr. Jignesh Kundaria, reinforces the company’s commitment to providing dependable, localised service support to its expanding customer base across Europe.

Strengthening Service Through Proven Expertise

With over two decades of experience in servicing, maintaining, and overhauling industrial shredders, Mr. Baur brings extensive technical expertise to the partnership. His capabilities span welding, hardfacing, shaft and knife rebuilding, complex assembly, hydraulics, and complete electrical engineering services, delivered in collaboration with a trusted partner company based in Halle/Saale.

Operating from Worbis, Germany, Mr. Baur is strategically positioned to provide emergency support across the European Union within 24 hours, covering an operational radius of approximately 1,000 kilometres.

Supporting this capability is a well-equipped service infrastructure comprising 12 Mercedes Sprinter service vans, a team of 24 skilled technicians, specialised bearing-change tools, a fully equipped hydraulic workshop, and a 1,000-square-metre facility with a five-ton crane track. Together, these resources position his team to manage the complete spectrum of Fornnax’s European service requirements efficiently and reliably.

Partnership Driven by Industry Insight

Having spent years servicing Eldan, Lindner, and Vecoplan shredders across the European recycling industry, Mr. Baur’s decision to collaborate with Fornnax is rooted in his understanding of market needs and customer expectations. His experience has provided valuable insight into what recycling plant operators require—not only from their machinery but also from the service teams supporting them.

According to Mr. Baur, Fornnax’s reputation for robust machine construction, superior wear protection, and maintenance-friendly design made the partnership a natural fit.

The collaboration comes at a time when Europe’s tyre recycling industry is facing mounting challenges, including rising cost pressures, shrinking margins, delayed investments, and a shortage of skilled labour. Mr. Baur believes these conditions reinforce the need for technically strong service partners capable of delivering rapid, dependable support.

Commenting on the partnership, he said, “Fornnax, with its exceptional price-performance ratio and superior quality, has the potential to become a market leader in Europe. We would like to be their service partner in this journey.”

Comprehensive Support Across the Equipment Lifecycle

As Fornnax’s authorised service partner, Mr. Baur will oversee the complete lifecycle support of the company’s equipment throughout the European Union. His responsibilities will include installation, commissioning, preventive maintenance, emergency repairs, and spare parts support across mechanical, hydraulic, and electrical systems.

Looking ahead, he also plans to develop a centralised spare parts distribution hub for European customers, particularly if Fornnax establishes a warehouse facility in Worbis to facilitate faster deliveries. To further strengthen service coverage, Mr. Baur intends to expand operations by adding two to three additional service teams and vehicles each year, progressively increasing capacity across the continent.

A Shared Commitment to Customer Excellence

Highlighting the strategic importance of the partnership, Mr. Jignesh Kundaria, Director and CEO of Fornnax, said:

“We strongly believe that by continuously improving our service quality and customer satisfaction index, we can build long-term relationships with our customers. Higher customer satisfaction leads to greater trust, which significantly increases repeat orders and ultimately drives sustained growth in our sales revenue.”

This customer-first philosophy underpins Fornnax’s strategy of building a dedicated European service partner network instead of relying solely on remote support. With Mr. Baur joining this network, customers across the European Union will benefit from faster response times, expert technical assistance, and dedicated on-ground support from a partner with extensive experience in high-throughput shredding operations.

Mr. Baur’s appointment also reflects Fornnax’s broader ambition to establish itself as the preferred shredding solutions provider for the European recycling industry, marking another important milestone in the company’s international growth strategy.

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Concrete

Nuvoco Vistas launches Limla cement plant, expands Gujarat footprint

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Nuvoco Vistas opens a 2 MMTPA grinding unit at Limla, entering Gujarat and advancing its target of 35 MMTPA capacity by FY 2028.

Surat (Gujarat)

Nuvoco Vistas Corporation Ltd, a part of Nirma Group and one of India’s leading building materials company, has inaugurated the Limla Cement Plant in Surat (Gujarat), one of Vadraj Cement Limited’s (VCL) principal manufacturing facilities. The commissioning represents a key milestone in Nuvoco’s acquisition and restoration of VCL, while supporting the company’s expansion across the Western Indian cement market.

Vadraj Cement Limited is a subsidiary of Nuvoco Vistas Corporation Limited and has installed cement capacity of 6 MMTPA across its assets. The Limla inauguration therefore represents the first operational step in the acquired platform’s wider revival, while the Kutch facilities provide clinker supply, mineral security and coastal logistics support for the western business.

Nuvoco completed its acquisition of Vadraj Cement Limited, then under the Corporate Insolvency Resolution Process, after paying a consideration of Rs 1,800 crore in June 2025. VCL’s asset portfolio comprises a clinker unit at Kutch and a grinding unit at Limla in Surat. It also includes high-quality captive limestone reserves and a captive jetty at Kutch, supporting more efficient logistics. Following the takeover, Nuvoco began an extensive programme of restoration, refurbishment and expansion at both locations, leading to the commissioning of the Limla plant.

The Limla Cement Plant is expected to support a phased increase in sales volumes across Gujarat. It will also help Nuvoco supply neighbouring markets in Western Maharashtra and release cement capacity from its northern plants, which can consequently be redirected towards markets in North India. The plant will manufacture a full portfolio comprising Ordinary Portland Cement, Portland Slag Cement, Portland Pozzolana Cement and Portland Composite Cement. It will additionally produce the complete Nuvoco Duraguard range, including the premium Nuvoco Duraguard Microfibre product. The acquisition is also expected to generate operational synergies with Nuvoco’s existing plants at Nimbol and Chittorgarh in Rajasthan, improving logistics optimisation and market reach across important regional markets.

The grinding unit at the Limla Cement Plant was completed ahead of schedule, with 2 MMTPA of capacity now inaugurated to expand Nuvoco’s operating scale and customer reach. After Vadraj Cement’s assets become fully operational, plants in North and West India are expected to account for nearly 40 per cent of Nuvoco’s total cement capacity. This will broaden the company’s manufacturing network, strengthen access to high-growth markets and support its plan to increase consolidated cement capacity to 35 MMTPA by FY 2028, reinforcing its longer-term growth strategy.

Commenting on the development, Jayakumar Krishnaswamy, Managing Director, Nuvoco Vistas Corp Ltd, said: “The inauguration of the Limla Grinding Unit in Surat is an important milestone in Nuvoco’s growth journey and demonstrates our commitment to disciplined, value-accretive expansion. Gujarat is strategically significant for Nuvoco, with substantial opportunities arising from infrastructure investment, industrial growth, rapid urbanisation and continuing demand from the housing and construction sectors. The facility strengthens our regional footprint, improves operational flexibility and increases our ability to serve customers across northern and western markets with greater reliability and efficiency.”

He added: “Through the Vadraj acquisition, we have refurbished and restarted a strategically important asset, returning it to operations in record time through strong execution and collaboration between teams. The achievement demonstrates our ability to create value from acquired assets, fulfil our commitments and retain the confidence of stakeholders. It also highlights the strength of our project delivery capabilities and our continued focus on building sustainable, profitable growth over the long term.”

Nuvoco Vistas Corporation Limited is a building materials company whose vision is to build a safer, smarter and more sustainable world. It is among the leading players in East India and has a significant presence across North and West India. Nuvoco began operations in 2014 with a greenfield cement plant at Nimbol, Rajasthan. It later acquired Lafarge India Limited, which had entered India in 1999, followed by Emami Cement Limited in 2020 and Vadraj Cement Limited in April 2025. The company has also announced an expansion in eastern India through a new grinding mill at the Arasmeta Cement Plant, supported by several debottlenecking programmes involving equipment upgrades, process improvements and internal capacity initiatives. These developments place Nuvoco on track to achieve total cement capacity of approximately 35 MMTPA. The company reported total income of Rs 11,362 crore in FY 2025-26, reflecting its continuing growth trajectory.

Nuvoco operates a diversified portfolio across three segments: Cement, Ready-Mix Concrete and Modern Building Materials. Its cement portfolio includes Concreto, Duraguard, Double Bull, PSC, Nirmax and Infracem, covering Ordinary Portland Cement, Portland Slag Cement, Portland Pozzolana Cement and Portland Composite Cement. Its pan-India RMX business provides value-added products under Concreto for performance concrete, Artiste for decorative concrete, InstaMix for ready-to-use bagged concrete, X-Con covering M20 to M60 grades, and Ecodure for specialised green concrete. Nuvoco has supplied materials to projects including the Mumbai-Ahmedabad Bullet Train, Birsa Munda Hockey Stadium in Rourkela, Aquatic Gallery at Science City in Ahmedabad, and metro railway projects in Delhi, Jaipur, Noida and Mumbai.

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Concrete

Green Construction Through Cement Innovation

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Indian Cement Review (ICR) and Fuller Technologies brought industry, policy and technology leaders together to discuss how cement innovation can drive green construction at scale, writes Rakesh Rao.

India is building at a pace few countries can match. Highways, airports, housing, logistics parks, industrial corridors and urban infrastructure are reshaping the country’s economic geography. But beneath this growth story lies a difficult question: can India continue to build at scale without locking itself into a high-carbon future?

That question formed the core of an online panel discussion titled “Driving Green Construction Through Cement Innovation”, organised by Indian Cement Review (ICR) in association with Fuller Technologies as the Presenting Partner on June 25, 2026. The webinar brought together experts from cement technology, R&D, global industry platforms, building performance policy and international development cooperation to examine how low-carbon cement and material innovation can accelerate India’s green construction transition.

The discussion came at a crucial time. India has committed to achieving net-zero emissions by 2070 and reducing the carbon intensity of its economy by 45 per cent by 2030. At the same time, the country’s construction sector is expanding rapidly, driven by urbanisation, infrastructure development, housing demand and industrial growth. Cement, as one of the most widely used construction materials, sits at the heart of this transition. It is indispensable to development, but also central to the challenge of reducing embodied carbon in buildings and infrastructure.

Moderated by Nitika Krishan, Senior Urban Infrastructure and Sustainable Policy Consultant, the panel featured:

  • Kiranmai Sanagavarapu, Director, Low Carbon Solutions, Fuller Technologies;
  • Dr Hemantkumar Aiyer, VP and Head R&D, Nuvoco Vistas Corp Ltd;
  • Devika Wattal, Innovation Lead, Global Cement and Concrete Association (GCCA);
  • Dr Sunita Purushottam, MD, GBPN India (Global Buildings Performance Network); and
  • Vaibhav Rathi, Senior Technical Advisor, GIZ (the German Agency for International Cooperation)

Setting the tone for the discussion, Nitika Krishan underlined the scale of the challenge before the sector. “The question before us is no longer whether we build, but how we build sustainably,” she said. She pointed out that construction accounts for nearly 40 per cent of global energy-related carbon emissions when both operational and embodied carbon are considered. Cement production, she added, remains one of the hardest industrial processes to decarbonise.

For India, this is not merely an environmental issue. It is a development issue, a competitiveness issue and increasingly, a market issue. As one of the world’s largest cement producers and among the fastest-growing construction markets, India’s material choices will influence the carbon trajectory of its built environment for decades. As Krishan observed, sustainability solutions in economies such as India must not remain limited to laboratory success. They must be scalable, commercially viable and practical at national level.

The innovation gap: From technology to market

Experts believe that there is a need to bridge the innovation gaps for making decarbonisation in cement and concrete scalable. Devika Wattal of GCCA, explained, “The starting point must be the core cement manufacturing process itself. The first and foremost is the heart of our process, the heart of cement manufacturing. How do we reduce clinker? That is always a topic where industry is working very intrinsically.”

Clinker reduction remains one of the most important pathways for lowering emissions in cement. Since clinker production is energy-intensive and chemically emits carbon dioxide, reducing the clinker factor through supplementary cementitious materials (SCMs), blended cements and new chemistries can have a significant impact. Wattal also noted that carbon capture, utilisation and storage (CCUS) will have a role, though it may not be the first lever for all markets.

However, she stressed that innovation cannot stop at technology development. A solution that works in the lab must also be adaptable to industry, scalable in production and acceptable in construction practice. “It is important for that innovation to be adaptable, to be scalable, and so that it can be executed in real time,” she said.

Wattal also called for stronger enabling systems around innovation. These include performance-based standards, product-level embodied carbon databases and clearer frameworks for evaluating green materials. Without these, low-carbon cement products may struggle to compete with conventional materials in procurement and design.

R&D must balance carbon, cost and performance

Bringing in the R&D perspective into the discussion, Dr Hemantkumar Aiyer of Nuvoco Vistas emphasised that low-carbon cement development cannot be treated as a single-variable exercise. Cement must perform in real construction conditions. It must deliver strength, durability, consistency and cost competitiveness, while also reducing carbon.

“The root of understanding and balancing all these aspects lies in materials, and knowing the materials,” he said.

According to Dr Aiyer, R&D teams must understand the variability of raw materials such as fly ash, slag and clinker. Different sources produce different material behaviours. This makes mix optimisation, material characterisation and processing-property relationships critical. When performance is affected, cement manufacturers must understand how strength enhancers, admixtures and other performance chemicals interact with the material system.

He also linked material science with process efficiency. Clinkerisation takes place at extremely high temperatures, around 1,400 to 1,450 degrees Celsius. Any improvement in raw mix design, process control or energy optimisation can, therefore, help reduce emissions and cost. Dr Aiyer pointed to artificial intelligence-based optimisation, Cement 4.0 tools and advanced software as important enablers for real-time process and material control.

“The more you understand the materials, the more you can control it,” he said.

LC3: The promise is proven, the sequencing is not

Limestone calcined clay cement, commonly referred to as LC3, has attracted global attention because it can reduce clinker content significantly by using calcined clay and limestone while maintaining performance in many applications. Kiranmai Sanagavarapu of Fuller Technologies said the technology itself has already moved beyond proof of concept. Fuller Technologies has worked with calcined clay technology for nearly two decades and has seen plants running in France and Ghana. These plants, she said, are meeting local and national specifications, while the economics are beginning to make sense.

“The calciner is performing, the economics is stacking up, it is making business sense to produce,” she said.

But if the technology is viable, why has adoption not scaled faster? For Sanagavarapu, the answer lies in project sequencing. Too often, clay characterisation happens after equipment is specified. This, she warned, is a backward approach because calciner design depends on clay mineralogy, kaolinite content, iron levels, reactivity, moisture and other variables.

“If you don’t know what your deposit looks like before you commit for the equipment, you are, in a way, going blind into designing,” she said.

She also identified permitting and plant integration as major bottlenecks. Environmental clearances, mining permissions and local regulatory approvals must begin early. Similarly, calcined clay must be integrated into existing grinding, blending and logistics systems from the design stage, not treated as an afterthought during commissioning.

India already has IS 18189:2023 standard for LC3, but Sanagavarapu pointed out that the standard is not yet visible enough in procurement documents. “The gap between what is technically being permitted and what the procurement is asking is the single biggest bottleneck,” she said.

In her view, successful scale-up depends on getting the sequence right: clay characterisation first, permitting in parallel, standards aligned with construction, and integration built into plant design.

India’s LC3 journey: Progress, but demand remains thin

Providing details of India’s LC3 commercialisation experience, Vaibhav Rathi of GIZ noted that JK Cement carried out the first commercial production of LC3 at its Rajasthan plant, followed by JK Lakshmi Cement three months later. These initiatives were supported by the International Climate Initiative of the Government of Germany, with IIT Delhi contributing deep institutional knowledge on LC3 research and BIS certification.

Rathi said India’s early experience has produced clear lessons. One of the biggest was the need to build capacity among regulators. While BIS certification existed, State Pollution Control Boards were unfamiliar with the technology and unsure about the approval pathway.

“The capacity building is not just needed amongst the producer and the users of the cement, but also the regulators who are working with this technology for the first time,” he said.

He also highlighted the need for better information on China clay deposits. Since China clay is currently classified as a minor mineral, centralised data on availability, quality and location is limited. If cement manufacturers are to adopt LC3 at scale, stronger mineral intelligence will be important.

The third issue is demand. LC3 has already been used in projects such as Palava City in Mumbai and Noida International Airport, but these remain limited examples. “It is in a chicken and egg situation,” Rathi said. “Cement companies are saying we need more demand, and users are saying there is not enough cement available.”

Public procurement, he suggested, could help break this cycle. If agencies such as CPWD and other public bodies begin testing, accepting and specifying LC3, it could create the market confidence needed for cement companies to invest in production and storage.

Building codes must catch up with innovation

Dr Sunita Purushottam of GBPN India argued that material choices will determine built environment emissions over the long term, but India’s current policy signals remain fragmented. Although LC3 has received BIS recognition, she pointed out that building codes, municipal bylaws, schedules of rates and sustainability codes do not yet provide uniform guidance on low-carbon cement.

“The current cement regulations are largely prescriptive and favouring traditional materials,” she said. This limits the ability of alternative materials to compete on performance, durability and emissions.

Dr Purushottam also raised the issue of taxation. Cement, including LC3, currently falls under the same GST bracket as conventional cement. A differentiated tax structure, she argued, could help accelerate market adoption. “In order for the market to demand LC3, that differentiation in the GST could go a long way,” she said.

She noted that green building certifications such as IGBC and GRIHA are already creating demand for low-carbon materials by assigning points for embodied carbon and sustainable material use. However, she said large-scale adoption will require regulatory mandates, particularly through building codes and state-level notifications.

She also cautioned that low-carbon cement alone does not solve the entire building performance problem. A material may reduce embodied carbon, but the operational carbon of a building depends on thermal performance, design, insulation and energy use. “The energy part has two elements,” she said. “One is the embodied carbon of the material itself, and the other is the operational carbon.”

Collaboration is the bridge between invention and impact

Wattal said GCCA sees innovation as a strategic priority and works through platforms that connect industry with academia and start-ups. “There is no way we will decarbonise our sector without innovation,” she said.

However, she stressed that research must be connected to actual industry challenges. Innovations developed in isolation may fail when they encounter real-world barriers such as raw material variability, plant integration, cost, standards and finance. Start-ups, too, need industry mentorship and scale-up pathways.

Wattal also flagged the importance of finance. Even strong technologies may struggle to attract investment if there is no common understanding of bankability. “We have always put projects into, is this a bankable project? But the definition of a bankable project has never been defined,” she said.

For India, she saw strong potential in its academic and start-up ecosystem, but said the challenge lies in alignment and prioritisation. The country has the research base, industrial capacity and market size. What it now needs is a coordinated route from innovation to deployment.

There is a practical concern for cement manufacturers: how can existing plants be adapted for lower emissions without compromising reliability or commercial viability?

Kiranmai Sanagavarapu addressed, “The reliability risk in calcined clay retrofit is definitely real, but it is almost always self-inflicted. The risk arises when a new process is added to an existing circuit without properly redesigning grinding and blending configurations.”

Existing cement plants, she explained, can take two broad routes. The first is external sourcing of calcined clay combined with mill optimisation. This requires lower capital investment and can potentially move in 12 to 18 months if other conditions are in place. It may reduce emissions by around 20 to 30 per cent. The second route is integrated calcination on site, which requires higher capital expenditure and longer lead times, but provides greater control over quality, supply and emissions reduction potential.

For Sanagavarapu, the principle is simple: low-carbon retrofits must be designed with intent. “Design it with an intent properly from the start. Start in the market conditions where the economics are already working,” she said.

Circularity: The overlooked advantage

According to Vaibhav Rathi, fly ash and slag are already well established in cement and construction (C&D), but construction and demolition waste remains underutilised. “C&D waste is a growing business opportunity which not many have taken up,” he said. India’s continuous construction and demolition activity creates huge volumes of waste, much of which contributes to air pollution, land degradation and material inefficiency. With the right processing and standards, this waste can be converted into useful construction products.

Rathi also pointed out that LC3 has a circular economy dimension that is often overlooked. It can use low-grade kaolin-rich clay left behind after high-grade clay is extracted for other applications. “LC3 is not only a low-carbon solution, but also a circular economy solution,” he said.

At the same time, he cautioned that LC3 in India is not yet cheap because it has not reached scale. Site-specific techno-commercial feasibility studies, supported jointly by development agencies and industry, could help companies assess whether LC3 production makes technical and financial sense at a given location.

Dr Purushottam added that India must address both low-carbon cement and construction waste together. “Both low-carbon cement and C&D waste go hand in hand. India does not have an option but to work on both,” she said.

Dr Aiyer called for policy shifts from both government and industry, including preferential purchasing of sustainable materials, minimum supplementary cementitious material requirements in public and public-private projects, and faster regulatory implementation. “If we can fast-track the regulatory standards and their implementation on the ground, that is the way to go,” he said.

From green ambition to green construction

Cement innovation is no longer only about chemistry. It is about systems. Low-carbon cement will scale only when technology, standards, procurement, finance, regulation, education and construction practice move together.

LC3 and other low-carbon technologies have shown promise. India has early commercial examples, strong research capability and growing market interest. But mainstream adoption will depend on whether demand can be created, regulators can be capacitated, standards can be embedded in procurement, and manufacturers can see a clear business case.

For a country building at India’s scale, the opportunity is enormous. Cement will continue to be central to infrastructure and urban development. The challenge now is to ensure that the cement used in India’s growth story carries a lower carbon burden.

  • Rakesh Rao

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