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Economy & Market

India has caught up with the trend of AF use in cement production

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Ish Mohan Garg, Managing Director, Calderys

How is the overall refractory market growing in India over the past 5 years? What is the future prospect of growth of demand? Please tell us how you segment the refractory market for analysis.
After two years of depressed market, currently refractory market has stabilised a bit and it seems that recovery is underway in 2018. About 75 per cent consumption comes from steel market hence major dependence is on steel market and our market growth is tied with ups and downs of the steel industry. Many analysts are forecasting steel growth at around 5 per cent YoY for the next three years. We may see similar growth rate in our industry.

What is the trend of imports of refractory into our country? Are we importing mostly from China or from other countries as well? Are the imports happening because of lower prices or better technology? What are your plans, if any, to substitute these imports? Are you, as an industry body, recommending any hike of import duties to protect the domestic manufacturers?
At present, imports cover around 25-30 per cent of refractory, most of this is coming from China primarily because of lower prices. Refractory is essentially a Make in India business model where we import raw materials and create value-added products in India. While import duty on RM is 5 per cent that on finished product is 2.5 per cent. This mere difference of 2.5 per cent has to increase to encourage domestic manufacturing activity.

Talking now specifically about the cement industry, how big is cement industry as a consumer of refractory, vis a vis others such steel, fertilizers/chemicals, etc., in the Indian marketplace? do you see growth in both projects and replacement demands in cement sector? How can we compare these two different demand segments, in terms of price and quality expectations of customers? What is your view about the future growth possibilities in the cement industry?
Though cement is the second largest segment in refractory industry, it is and would continue to be small when we compare it with steel. Cement market growth remains healthy however major impact is on capacity utilisation. New capacity addition is only marginal, which means we may not see growth in new projects in the next three years however maintenance demand would remain steady.

Do you observe any major shifts happening in the applications market, such as for example, castables, chrome-free, magnesia, zircon, etc.? What are the latest technology trends in cement kiln refractory in the world, and how is India keeping pace?
In the past, the major focus had been on the kiln performance, primarily productivity but with stricter environmental norm there has been major shift on the cement kiln system refractories too. Well known hexavalent chrome problem associated with Mag Chrome refractories has made them unusable in cement kiln. In the kiln burning zone, Mag Chrome bricks have been substituted by wide range of alternate spinel products, e.g. MagAl, Hercenyte and others like zirconia containing magnesia, etc. Ammonia injection, once stricter NOx and SOx norms is implemented, would put significantly more stress on the refractory in the cement kiln system. Refractory manufacturers need to gear up for these upcoming regulatory norms.

Usage of alternate fuel for cement production has been in trend in Europe and other industrialised nations for a few decades. India has caught up with this trend and in today’s context pet coke is no longer is treated as alternate fuel.

Cement kilns in India are virtually being used as incinerator, where pharma and municipal wastes are common feed as fuel. This obviously has changed the kiln operating environment. This has resulted in increased coating build in kiln inlet as well as Spurrite ring formation within the kiln. In many occasions the clinker is dustier compared to the past. These changes obviously have called for refractories with different features. Incorporation of the requisite features has turned out to be much easier in monolithic, primarily castables, compared to bricks. Against this backdrop, castable in kiln inlet, tip casting, bull nose and cooler bench has become a standard practice. With the advent of shotcrete installation process, for identical castable formulations, faster installation extension of refractory life, by repair, has been possible.

India has been fairly successful in keeping pace with cement industry requirement by providing solution through monolithic refractories. The same, however, has not been the case for basic bricks for burning and transition zones, which primarily is due to non-availability of quality basic raw materials in India.

What are your new product offerings for the cement sector currently, and what are your future plans to introduce new items into the market in near future?
Our new product range consists of following product ranges:
SUPRAMON Series: Chemically-bonded castable
ACCSHOT Series: Customised shotcrete products
CALDE SUPERGUN Series: Gunning material Very soon, we plan to launch new products for precast prefired bull nose, tip casting and burner pipe blocks.

Given that application of refractory has a great impact on quality of installation, do you directly take part in application work at your customers’ sites, or do you partner with other application service providers?
Installation plays a vital role in the performance of refractory; therefore, we directly take part in the installation work. We work in following models depending upon the job type, complexity, etc.
Model 1: where we hire the manpower from our certified manpower suppliers and execute the job under the supervision of our very experienced Calderys staff
Model 2: where we get the job done through our contractor* under the supervision of our very experienced Calderys staff.
Model 3: a combination of model 1 & 2
*we have a team of certified contractors who are well versed with our installation safety and execution technique.

Refractory products are a classic example where total life cycle cost or TCO should determine purchasing decisions, and not the procurement price per se. This is particularly true for the cement kilns. Do you see the Indian cement plant managers are sensitive to total cost of ownership in making these procurement calls?
That’s true and we are increasingly seeing cement customers now focusing on total cost of ownership versus product price per kilogram. Given that industry is noticing healthy demand and players are seeing higher capacity utilisation, it’s key for them to buy high quality products with higher product life expectation in order to make sure that kiln keeps running. We expect that more and more procurement managers would focus on total lifecycle cost of refractory, since industry is moving towards all time high capacity utilisation levels in the next three years.

If you were to recommend a few actions to be taken by our government in order to help promote growth of the refractory industry, can you please share the top three or four such recommendations with our readers.
There are multiple aspects where active role government could support domestic industry. Primary axes of support from government are in following three fronts – technology development, developing young talent and sustainability. Following is what I mean by this:

Technology development: On behalf of IRMA, we have set up Centre of Excellence at IIT BHU aimed at technological advances for making industry globally competitive. We need to accelerate such advances multiple Institute of repute.

Developing young talent: At present, we have handful of reputed science and Engineering institutes to cater to Industry of Rs 7,000 crore. We foresee significant shortage of right talent in coming years to fulfill the needs of industry. Hence, the Government needs to take steps to nurture more such institutes.

Sustainability and recycling: For decades we have been dumping used refractory in landfills however more sustainable way is to extract key RMs from the same use it again for refractory. We trust Government should work with user industry to enable reverse supply chain of used refractory.

Is the Indian refractory manufacturing industry globally competitive? Are we, as a country, able to tap into the global/regional market? More specifically, what is your company’s export performance or export plans for the immediate future?
Raw materials being 60-70 per cent of the total cost of refractory makes it difficult for Indian refractory industry to become globally competitive, due to shear dependence of Indian manufactures on imported raw materials. As a country, our ability to tap into global/ regional market is very much restricted.

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Economy & Market

TSR Will Define Which Cement Companies Win India’s Net-Zero Race

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Jignesh Kundaria, Director and CEO, Fornnax Technology

India is simultaneously grappling with two crises: a mounting waste emergency and an urgent need to decarbonise its most carbon-intensive industries. The cement sector, the second-largest in the world and the backbone of the nation’s infrastructure ambitions, sits at the centre of both. It consumes enormous quantities of fossil fuel, and it has the technical capacity to consume something else entirely: the waste our cities cannot get rid of.

According to CPCB and NITI Aayog projections, India generates approximately 62.4 million tonnes of municipal solid waste annually, with that figure expected to reach 165 million tonnes by 2030. Much of this waste is energy-rich and non-recyclable. At the same time, cement kilns operate at material temperatures of approximately 1,450 degrees Celsius, with gas temperatures reaching 2,000 degrees. This high-temperature environment is ideal for co-processing, ensuring the complete thermal destruction of organic compounds without generating toxic residues. The physics are in our favour. The infrastructure is not.

Pre-processing is not the support act for co-processing. It is the main event. Get the particle size wrong, get the moisture wrong, get the calorific value wrong and your kiln thermal stability will suffer the consequences.

The Regulatory Push Is Real

The Solid Waste Management (SWM) Rules 2026 mandate that cement plants progressively replace solid fossil fuels with Refuse-Derived Fuel (RDF), starting at a 5 per cent baseline and scaling to 15 per cent within six years. NITI Aayog’s 2026 Roadmap for Cement Sector Decarbonisation targets 20 to 25 per cent Thermal Substitution Rate (TSR) by 2030. Beyond compliance, every tonne of coal replaced by RDF generates measurable carbon reductions which is monetisable under India’s emerging Carbon Credit Trading Scheme (CCTS). TSR is no longer a sustainability metric. It is a financial lever.

Yet our own field assessments across multiple Indian cement plants reveal a sobering reality: the primary barrier to scaling AFR adoption is not waste availability. It is the fragmented and under-engineered pre-processing ecosystem that sits between the waste and the kiln.

Why Indian Waste Is a Different Engineering Problem

Indian municipal solid waste is not the material that imported shredding equipment was designed for. Our waste streams frequently exceed 40 per cent to 50 per cent moisture content, particularly during monsoon cycles, saturated with abrasive inerts including sand, glass, and stone. Plants relying on imported OEM equipment face months of downtime awaiting proprietary spare parts. Machines built for segregated, low-moisture waste fail quickly and disrupt the entire pre-processing operation in Indian conditions.

The two most common failures we observe are what I call the biting teeth problem and the chewing teeth problem. Plants relying solely on a primary shredder reduce bulk waste to large fractions, but the output remains too coarse for stable kiln combustion. Others attempt to use a secondary shredder as a standalone unit without a primary stage to pre-size the feed, leading to catastrophic mechanical failure. When both stages are present but mismatched in throughput capacity, the system becomes a bottleneck. Achieving the 40 to 70 tonnes per hour required for meaningful coal displacement demands a precisely coordinated two-stage process.

Engineering a Made-in-India Answer

At Fornnax, our response to these challenges is grounded in one principle: Indian waste demands Indian engineering. Our systems are built around feedstock homogeneity, the holy grail of kiln stability. Consistent particle size and predictable calorific value are the foundation of stable kiln combustion. Without them, no TSR target is achievable at scale.

Our SR-MAX2500 Dual Shaft Primary Shredder (Hydraulic Drive) processes raw, baled, or loosely mixed MSW, C&I waste, bulky waste, and plastics, reducing them to approximately 150 mm fractions at throughputs of up to 40 tonnes per hour. The R-MAX 3300 Single Shaft Secondary Shredder (Hydraulic Drive), introduced in 2025, takes that primary output and produces RDF fractions in the 30 to 80 mm range at up to 30 tonnes per hour, specifically optimised for consistent kiln feeding. We have also introduced electric drive configurations under the SR-100 HD series, with capacities between 5 and 40 tonnes per hour, already operational at a leading Indian waste-processing facility.

Looking ahead, Fornnax is expanding its portfolio with the upcoming SR-MAX3600 Hydraulic Drive primary shredder at up to 70 tonnes per hour and the R-MAX2100 Hydraulic drive secondary shredder at up to 20 tonnes per hour, designed specifically for the large-scale throughput that higher TSR ambitions require.

The Investment Case Is Now

The 2070 Net-Zero target is not a distant goal for India’s cement sector. It starts today, with decisions being made on the plant floor.

The SWM Rules 2026 are already in effect, requiring cement plants to replace coal with RDF. Carbon credit markets are opening up, and coal prices are not going to get cheaper. Every tonne of coal a cement plant replaces with waste-derived fuel saves money on one side and generates carbon credit revenue on the other. Pre-processing infrastructure is no longer just a compliance requirement. It is a business investment with a measurable return.

The good news is that nothing is missing. The technology works. The waste is available in every Indian city. The government has provided the policy direction. The only thing standing between where the industry is today and where it needs to be is the commitment to build the right infrastructure.

The cement companies that move now will not just meet the regulations. They will be ahead of every competitor that waits.

About The Author

Jignesh Kundaria is the Director and CEO of Fornnax Technology. Over an experience spanning more than two decades in the recycling industry, he has established himself as one of India’s foremost voices on waste-to-fuel technology and alternative fuel infrastructure.

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Concrete

WCA Welcomes SiloConnect as associate corporate member

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The World Cement Association (WCA) has announced SiloConnect as its newest associate corporate member, expanding its network of technology providers supporting digitalisation in the cement industry. SiloConnect offers smart sensor technology that provides real-time visibility of cement inventory levels at customer silos, enabling producers to monitor stock remotely and plan deliveries more efficiently. The solution helps companies move from reactive to proactive logistics, improving delivery planning, operational efficiency and safety by reducing manual inspections. The technology is already used by major cement producers such as Holcim, Cemex and Heidelberg Materials and is deployed across more than 30 countries worldwide.

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Concrete

TotalEnergies and Holcim Launch Floating Solar Plant in Belgium

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TotalEnergies and Holcim have commissioned a floating solar power plant in Obourg, Belgium, built on a rehabilitated former chalk quarry that has been converted into a lake. The project has a generation capacity of 31 MW and produces around 30 GWh of renewable electricity annually, which will be used to power Holcim’s nearby industrial operations. The project is currently the largest floating solar installation in Europe dedicated entirely to industrial self-consumption. To ensure minimal impact on the surrounding landscape, more than 700 metres of horizontal directional drilling were used to connect the solar installation to the electrical substation. The project reflects ongoing collaboration between the two companies to support industrial decarbonisation through renewable energy solutions and innovative infrastructure development.

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