Every other news that pertains to the cement sector presents a gloomy picture and leading the posse are research analysts who are not very optimistic of cement stocks with the exception of a few leading companies that have consistently performed well even under duress. Indian Cement Review checks out whether it is time to call the doctor….The Indian cement industry had witnessed a dream run in the recent past. Consumption of cement in the country had grown at a CAGR of 9.9 per cent during the period FY 06-10. The cement demand growth had surpassed the economic growth rate during the same period. In FY10, cement demand grew at 11.1 per cent recording a multiplier of 1.4 times with the economic growth rate. However, in FY11, cement demand grew at merely 5.1 per cent on YoY basis. The multiplier of cement demand growth to the GDP growth declined below one. Construction activities remained subdued in the last fiscal owing to various reasons. Prolonged monsoon, heavy winter, delay in execution of infrastructural projects due to environmental hurdles and end of construction activities related to Commonwealth Games all together led to lower cement demand growth in FY11. Slowdown in the housing sector due to rising interest rates also impacted cement off take.The long-term cement demand in the country is expected to remain intactGoing forward, cement demand will largely be driven by the increased focus of the government on the infrastructure development and promotion of low-cost affordable housing in the country. The real estate sector continues to dominate as the largest cement-consuming sector in the country. Decent economic growth, rising income levels of a growing middle class, concept of nuclear families catching pace, tax incentives and modern attitudes towards home ownership (the average age of a new homeowner has declined to 32 years compared with 45 years a decade ago) will continue to boost the housing demand and real estate related to the retail segment. The measures announced in the recent budget also indicate continued support of the government to the affordable housing segment which will help the real estate sector to continue its growth momentum and in turn cement demand. CARE Research estimates that in the next four to five years, cement demand to the tune of about 250-260 mn tonne is expected to emanate from the construction of new dwellings in the urban region alone.Infrastructure sector will need more than 600 million tonne of cement during the Twelfth Five Year PlanCement demand is expected to pick up as government expenditure on infrastructure projects catches momentum. In the recent budget, GoI has taken various initiatives to attract foreign funds towards the infrastructural sector. Such measures will help in providing the much-needed financial support to the infrastructural projects and in turn enable faster execution which will boost the cement demand. GoI has envisaged an investment of more than Rs 4000 bn for infrastructure development under the Twelfth Five Year Plan. This will augur well for the cement industry, currently almost 25 per cent of the total cement consumption in the country is contributed by the infrastructure sector. Based on the cement component in the civil construction, CARE Research has estimated that the investments planned under various sub-sectors of the infrastructure sector during the Twelfth Five Year Plan will derive a cement demand of more than 600 million tonne. The share of the infrastructure sector in the total cement consumption is estimated to reach a level of 35 per cent by the end of FY17. Cement demand which is expected to emanate on the back of the planned investments under different infrastructure sub-segments in the Twelfth five year plan is shown in the following chart: Cement demand is expected to grow at a CAGR of 9.3 per cent during the period FY 12-14. The following table gives the overall cement demand-supply situation over next three years:Capacity utilisation rate to remain in the range of 74-76 per cent during FY 12-14In past few years, the gap between cement demand and capacity has been widening due to substantial capacity addition. The cement industry witnessed a capacity addition of about 142.2 million tonne during the period of FY05-11. Out of this, about 67 million tonne of capacity was added in last two fiscals which is almost 23 per cent of industry’s total capacity as on March 31, 2011. As a result, the overall utilisation rate of the industry dropped from the peak of 93 per cent in FY07 to 75 per cent in FY11.Cement industry is expected to add capacity of about 86 million tonne in the period FY 12-14. The industry will continue to face a surplus situation. The operating rate of the industry will remain in the narrow range of 74 – 76 per cent during FY 12-14.Even though the Break-even Cushion is at comfortable level, prices to remain under pressureEven with the decline in the operating rate to a level below 80 per cent, the cement industry has been able to hold the prices on the back of high break-even cushion value.Break-even CushionBreak-even cushion is defined as the ratio of overall capacity utilisation rate of the industry to the utilisation rate at the break-even point in a particular year.Although the break-even cushion value has declined in the past three years, it is still at the comfortable level of two times. With this, cement industry is in better position to avoid substantial price cuts. However, CARE Research expects cement prices to remain under pressure in the current fiscal.(Revati Kasture, Head – Industry Research & Chaitanya Raut, Sr. Manager CARE Ratings)Operating rates will be challenged, profitability headed towards decadal lowCRISIL Research expects cement profitability to decline to its lowest level in the past 10 years by 2012-13. A huge demand-supply imbalance, fueled by supply glut, will drive cement profitability down. The supply glut will slacken cement manufacturers’ operating rates, restricting their ability to pass on a sharp rise in power and fuel costs to consumers.Over the next two years, while cement capacities rise by 60 million tonne per annum (mtpa), demand will increase by a mere 30 mtpa. Operating rates of cement manufacturers will therefore plunge to around 72 per cent in 2012-13 from an already subdued 78 per cent in 2010-11. Cost of power and fuel, a major input for cement, will increase by around 18 per cent in 2011-12, given a steep increase in coal prices by the industry’s dominant supplier, Coal India Ltd. In addition, an increase in effective excise duty rates will lower cement manufacturers’ net price realisations by 2-4 per cent."The magnitude of the demand-supply imbalance and cost escalation will halve the cement industry’s EBITDA margins from the current 20 per cent to around 10 per cent in 2012-13 – the lowest level in the past 10 years," Prasad Koparkar, Head – Industry and Customised Research, CRISIL Research said. Small-sized cement manufacturers – with capacities of less than 2 mtpa – are likely to post losses of about 2 per cent at the EBITDA level in 2012-13. Large cement manufacturers – capacities of 10 mtpa or higher, however, will fare better than the industry average, with EBITDA margins of about 12 per cent.The key reasons for the better performance of large cement manufacturers will be their greater use of captive power and their inherent economies of scale. These companies meet three-fourth of their power requirements through captive generation. Small cement companies, in contrast, meet a mere 5 per cent of their power requirements through the captive route, and source the remainder from the more expensive grid power. "Captive power can make a critical difference to cement profitability," Ajay D’souza, Head, CRISIL Research explained. "Every 10 percentage point increase in captive power consumption can improve cement companies’ EBIT DA margins by 50 basis points."An expert from the industry however dismisses the fears and says that the environment is being painted gloomier than it actually is. "If you look at some established companies they have been doing well despite the hardships and constraints. We expect the agriculture sector to grow and with the good monsoons we have had so far, we are looking at greater rural demand – NREGA spending is up. In a bid to counter global slowdown the government is already planning to boost up internal spending on infrastructure."Sumit Banerjee, CEO, Reliance Cementation, has this to say on the scenario: "Cement sector is cyclical and what we are seeing today is hopefully the bottom of the cycle. The current imbalance in the demand-supply situation is temporary and that too regional in nature. While a near equilibrium exists between demand and supply in some regions, there is excess capacity in South. With consumption growth expected to remain under pressure on account of delays in infrastructure and reality projects, rising capital cost, etc. the average all India capacity utilisation level in FY 12 is expected to touch less then 75 per cent, lowest in the past decade, and then gradually climbing back to 77 per cent in FY 13 and more than 78 per cent in FY14. However, on a longer term basis, with a GDP growth back on track, and thrust on development of physical infrastructure, we expect the growth in cement demand to be robust at around 10% in future. Moreover, with fewer limestone deposits now available to support new plants, coupled with constraints of acquiring land and getting statutory approvals, capacity additions through new green field projects will also slacken in the coming few years. Together, both these factors are likely to result in shortening the down cycle time for the industry and 90 per cent capacity utilization level could be reached earlier than expected."On the drop of prices in the month of July he says, "The drop in cement prices in July is on expected lines due to onset of monsoon as there is an overall slowdown in construction activities. Prices are expected to remain under pressure until Oct 11 and thereafter we may see some upward correction."According to him the eastern and central regions are expected to show higher growth as compared to the other regions.Don’t call the doctor yet….Bleak as it looks, the industry has the capability to withstand the onslaught of varied negative factors and still come out a winner. Despite many analysts predicting dark days ahead for cement companies, shares of some of the larger companies have managed to hold their own while other sectors have dipped. Post the announcement of RBI on credit tightening, domestic benchmark indices have lost 12 per cent in value. The Bombay Stock Exchange’s benchmark Sensex lost 2,194.54 points, to close at 16,676.75 on August 30. But cement stocks have not only stood steady some of them have appreciated. At the time of going to press, UltraTech Cement had gained 7.1 per cent since then and Ambuja Cements was up by 1.4 per cent and ACC gained 0.4 per cent. While it may be true that the June quarter results may have something to do with their performance experts agree that it is definitely better than expected.True cement companies are facing problems that stretch from over-capacity, low price realisation to falling demand for building material, rising input costs, lack of major infrastructure projects and, a charge of cartelisation, but the days ahead still hold some hope. Comes the good news from some companies that dispatches are on the rise. Jaiprakash Associates has announced that its cement shipments in August rose 21 percent from a year earlier to 1.32 million tonne. ACC has announced that its production & despatch figures for the month of August 2011 recorded an increase in sales at 1.88 million tonne compared to 1.57 million tonne in the corresponding period. Also the production increased from 1.56 million tonne to 1.88 million tonne.With the monsoon coming to an end, demand is surely going to pick up soon. The government may also quick track many infrastructure projects to balance the global downgrade and help the economy and this also bodes well for the cement sector.10 Per cent growth, a possibilityWorldwide cement consumption is forecast to reach a record 3,859 million tonne in 2012, 17 per cent up from 2010 levels. Global cement consumption growth had slowed to 2.4 per cent in 2008, the crisis ridden year, recovered to 5.9 per cent in 2009 with volumes touching 2,998 million tonne and further to 3,294 million tonne in 2010, giving annual growth rate of 9.9 per cent. China dominates world cement statistics consuming 1,851 million tonne in 2010, almost double of 2004 levels, while India, the world’s second-largest consumer registered 212 million tonne in 2010. The United States, the third-largest consumer, saw demand fall down to 69 million tonne.What happened in India? The Indian cement industry sustained its growth rate even in the tough conditions of economic slowdown. According to FIRST Infocentre, the Indian cement industry witnessed tremendous growth on the back of continuously rising demand from the housing sector, increased activity in infrastructure, and construction boom. Recent industry developments and the government supportive policies are attracting global cement giants and sparking off a spate of mergers and acquisitions to spur growth. Numerous domestic and international cement companies are striving hard to establish their production base in the country.Majority of the cement companies expanded their installed capacity against the backdrop of government backed infrastructure construction projects as these projects created strong demand for cement. With the growth in real estate activities and boom in the development of infrastructure, cement industry was on a roll in India.Before venturing into forecast for 2012, it would be necessary to dwell into the base year, 2011. After growing by less than 5 per cent in 2010, cement consumption is projected to grow by 11 per cent to 240 million tonne in 2011.Cement consumption has a very strong correlation with the economic growth as construction activities pick-up with the rise income levels. Construction GDP is projected to grow 10 per cent.FIRST Infocentre provides three scenarios for cement consumption forecast for 2012 based on the correlation of past drivers, challenges, and opportunities for expansion;
The worst-case scenario forecast pegs cement consumption growth at 8 per cent in 2012 if real GDP grows by 6.5 per cent and prices of fuel inputs rise faster than in 2011.
The most likely scenario is around 10 per cent increase in cement consumption, wherein, the GDP will grow by 8 per cent and fuel costs move up moderately in line with the general inflation rate.
The optimistic projection pegs consumption growth at 12.2 per cent, assuming GDP grows 9.5 per cent and fuel prices rise slower than the general inflation rate.
Thoroughly examining all emerging trends and drivers fueling growth in the cement industry, the regional cement demand-supply dynamics varies from state to state. The Twelfth Five Year Plan is expected to spend over US$1 trillion on infrastructure sector over the five year period beginning 2012-13. During the first year, more of spill over projects will be targeted for completion, along with the addition of new plan projects. This will boost demand for cement in states that attract more investment projects. For example, Orissa has been seeing number of projects increasing rapidly.Courtesy: FIRST Infocentre
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.
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:
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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Specialised rail logistics will move fly ash from power plants to infrastructure industries.
New Delhi
Indian Railways is planning a large-scale green logistics initiative to transport fly ash from thermal power plants to industries where it can be reused in infrastructure and construction activities.
The initiative was discussed during a review meeting chaired by Union Minister for Railways Ashwini Vaishnaw. Union Ministers of State for Railways V Somanna and Ravneet Singh Bittu were also present.
India generates nearly 340 million tonnes of fly ash every year from thermal power plants. The proposed initiative aims to create an efficient rail-based transport system using specialised containers and dedicated logistics arrangements to move fly ash safely from power plants to end-use industries.
Fly ash is widely used in road construction, cement manufacturing, brick production, concrete, blocks and boards. By improving its movement through the railway network, the initiative is expected to support better utilisation of this industrial by-product while reducing environmental concerns linked to storage and disposal.
The move also aligns with India’s circular economy goals by converting waste from thermal power generation into a useful raw material for the construction and infrastructure sectors. Wider availability of fly ash can help reduce material costs in areas such as bricks and cement, supporting more affordable infrastructure and housing development.
Through this initiative, Indian Railways aims to provide a cleaner, safer and more organised transport solution for fly ash, turning an environmental challenge into an infrastructure resource.
