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Greening of industry is a method to attain sustainable economic growth and promote sustainable economies. It includes policymaking, improved industrial production processes and resource-efficient productivity.
The United Nations Industrial Development Organization (UNIDO) can be given credit of coining the term Green Industries Initiatives. A few years back, UNIDO coined the concept ‘Green Industry’ to place sustainable industrial development in the context of new global sustainable development challenges. Green industry means economies striving for a more sustainable pathway of growth, by undertaking green public investments and implementing public policy initiatives that encourage environmentally-responsible private investments.
Green Industry Initiatives create awareness, knowledge and capacities about what is sustainable. UNIDO works with different governments to support industrial institutions that in turn provide assistance to enterprises and entrepreneurs in all aspects relating to the greening of industry. As an organisation, UNIDO extends support for integrating corporate social responsibility, water management, energy and promotion of eco-friendly processes into the policy framework of an industry.
On the other hand, industrial pollution is generally referred to the undesirable outcome when factories emit harmful by-products and waste into the environment such as emissions to air or water bodies (water pollution), deposition on landfills etc. (land pollution) or emission of toxic chemicals into the atmosphere.
Earth’s atmosphere is a dynamic system of natural gases that are necessary to sustain life, and while it has a defence mechanisms to absorb small quantities of air pollutants, high levels of gases can cause ozone depletion and other problems for living organisms. The main sources of gaseous air pollutants are fuel combustion in stationary sources, such as coal-burning power plants, as well as emissions from automobiles. While these gases are not the only ones contributing to air pollution, they are regarded as dominant sources of this world-wide problem.Carbon oxides: Carbon monoxide (CO) is a poisonous gas, dangerous due to its lack of odour and colour that is released into the atmosphere with the incomplete combustion of fuels, such as coal, wood or other natural sources, as well as exhaust from automobiles. Carbon dioxide (CO2) is the greenhouse gas widely considered the main air pollutant in the earth’s atmosphere. Despite the fact that carbon dioxide is essential to support living organisms, it is considered a dangerous air pollutant caused by human activities such as deforestation and the burning of fossil fuels.
Responsible for more than half of the global warming trend, carbon dioxide restricts infrared radiation leaving the Earth’s surface, causing the "greenhouse effect."Nitrogen oxides: Nitrogen oxides (NOx) are air pollutants that contribute the most contaminants to the earth’s atmospheric. Like carbon oxides, vehicle emissions are a major source of nitrogen oxides, and these air pollutants are easily recognizable by the brown plume or haze that forms over areas with high concentrations of the gases. Nitrogen dioxide (NO2) is one of the most prominent and dangerous air pollutants, and this toxic gas is easily identifiable by its reddish-brown color and distinctive, sharp odour.Sulphur oxides: Sulphur oxides (SOx) are another group of gases polluting the earth’s atmosphere. Of particular concern is sulphur dioxide (SO2), one of the major components of smog and a primary cause of acid rain. While sulphur dioxide is naturally produced by erupting volcanoes, the combustion of sulphur-containing fuels such as petroleum oils and coal have caused this gas to become a dangerous air pollutant that is eating away at the Earth’s fragile atmosphere. Dangerous to both plants and animals, sulphur oxides can injure organic matter when deposited in high concentrations and cause respiratory problems by irritating air passages and lungs.
On November 8, 2017, Delhi earned the unenviable distinction of becoming the most polluted city on Earth. The pollution surged so high that some monitoring stations reported an Air Quality Index of 999, way above the upper limit of the worst category, hazardous. (An extra-sensitive air quality instrument at the US embassy got a reading of 1,010, as you can see in the chart).
The airborne particles and toxic chemicals that make up the smog had choked the 19 million residents of the metropolitan area, where merely breathing the air was, at its worst, like smoking 50 cigarettes in a day. Hospitals reported a 20 percent surge in patients with pollution-related illnesses, and doctors had declared a public health emergency.
We are bringing out a classic case before the readers just to point out that what reckless industrialisation can bring out. In the entire spectrum of pollutants, automobiles cause the highest pollution then comes the power generating plants and close to that is cement industry. Therefore it is pertinent that cement industry initiates green initiatives. Why to take green steps?

  • Cement production is the third ranking producer of anthropogenic (man-made) CO2 in the world after transport and energy generation
  • About 4 – 5 per cent of the worldwide total of CO2 emissions is caused by cement production
  • CO2 is produced at two points during cement production:
  • The first is as a by-product of burning of fossil fuels, primarily coal, to generate the heat necessary to drive the cement-making process. The second from the thermal decomposition of calcium carbonate in the process of producing cement clinker.
  • CaCO3 (limestone) + heat -> CaO (lime) + CO2
  • Production of one tonne of cement results in 780 kg of CO2
  • Of the total CO2 output, 30 per cent derives from the use of energy and 70 per cent results from de-carbonation

Important to realise is that although 5 per cent of the worldwide generation of CO2 is due to cement production, that level of output also reflects the unique and universal importance of concrete throughout the construction industry.Measures adopted by cement
The emission regulations moved from 250 mg/Nm3 to 30 mg/Nm3 progressively on par with the global best practices. The cement Industry is continuously adapting to the latest air pollution control technologies like Electrostatic Precipitators, Bag Filters for achieving lower stack emissions of 30 mg/Nm3. Cement Industry installed Continuous Emission Monitoring Systems and Continuous ambient air quality monitoring stations for on line reporting dust emissions. The provisions of Air (Prevention and Control of Pollution) Act, 1981, National Ambient Air Quality Standards has accelerated the Cement Industry’s efforts to pursue their initiatives more vigorously.Measures to control of water pollution: Cement Industry installed Sewage Treatment Plants and Effluent Treatment Plants to treat this water and to reuse for dust suppression & gardening. It is also doing huge amount of rain water harvesting in their mined out pits. Corporates like ACC, Ambuja and Dalmia Bharat have taken steps at few of their plants to become water positive. Sustainable mining and biodiversity conservation: All captive mines operated by Cement Industry strictly adhere to mining, environmental norms laid by Indian Bureau of Mines, Ministry of Environment & Forest & Climate Control , State Pollution Control Board for eco-friendly mining and safety norms by Directorate General of Mines Safety (DGMS) for safe mining. All cement plant and mine sites complies with earmarking 33 per cent of total land area for the green belt development and afforestation. Wild Life Protection Act (WPA) 1972 is further augmenting the Cement Industry’s efforts in preserving the biodiversity with clear guidance. Hazardous waste management & co-processing:Cement industry generates very limited quantity of hazardous waste such as spent oils and lubricants, grease, etc., which are either co-processed in cement kilns or sold to authorised recyclers. The Hazardous Waste (Management, Handling and Transboundary Movement) Rules, 2008 & amendment 2010 gives a clear guidance to the Industry for safe management, handling and disposal of hazardous waste. Apart from this industry also co-process various waste materials generated by other industry. The kiln of a cement plant is the best suited for processing of waste in the most cost effective manner which none other system offers world over. Today rapid urbanisation has created several problems of disposing off waste either industrial or domestic. The stock of fossil fuels is depleting very fast, we have to look for another source of energy. Therefore processing of waste in cement kilns has vast potential in our country. The technology as such is quite proven in Europe and other advance countries. We need to adapt it to local conditions. TSR (Thermal Substitution Rate) is a per cent age replacement of conventional fuel and the number for some of the countries is as high as 60 per cent where as in our case it is at meagre 4 per cent.
Apart from the above, the cement industry has following various innovations towards the sustainable development. Equipment Innovation: Cement
Industry has taken various energy conservation activities throughout the cement manufacturing process. Some of the notable initiatives are as given are
as under:

  • Advanced dry process kiln with energy efficient cooler with 6/7 stage pre heater
  • Low NOX burners and low NOX calciners to reduce NOX from the kiln
  • Energy-efficient grinding equipment like roller press and VRMs
  • Energy efficient compressors, pumps, lighting, variable speed drives, fans and motors
  • Process optimiser along with advanced energy management system, etc.,

Clinker factor improvement and natural resources conservation: Total cement grade limestone reserve available to meet the industry requirements is 89.86 billion tonne, which are expected to last only for another 40 years. Cement industry has carried out extensive research and development for substituting clinker and to absorbs huge quantities of industrial wastes like fly ash and slag. This not only helps in reduction in CO2 emission but also preserving natural resources like limestone and corrective materials.
Recycling of concrete as of date happens to be far stretched. Concrete mixture has the highest proportion of natural materials like stone chips, sand, water etc. If we are able to make use of used concrete we shall save our natural sources of sand and stones. Cement industry is expected to make investments in processing of used concrete which is not happening. With focus on infra development, the day is not far away when we shall be compelled to explore these options. With confidence we can say that Indian cement industry is on the right track though may be little late on few initiatives. The days ahead of us will see industry becoming greener.

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Concrete

Technology plays a critical role in achieving our goals

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Arasu Shanmugam, Director and CEO-India, IFGL, discusses the diversification of the refractory sector into the cement industry with sustainable and innovative solutions, including green refractories and advanced technologies like shotcrete.

Tell us about your company, it being India’s first refractory all Indian MNC.
IFGL Refractories has traditionally focused on the steel industry. However, as part of our diversification strategy, we decided to expand into the cement sector a year ago, offering a comprehensive range of solutions. These solutions cover the entire process, from the preheater stage to the cooler. On the product side, we provide a full range, including alumina bricks, monolithics, castables, and basic refractories.
In a remarkably short span of time, we have built the capability to offer complete solutions to the cement industry using our own products. Although the cement segment is new for IFGL, the team handling this business vertical has 30 years of experience in the cement industry. This expertise has been instrumental in establishing a brand-new greenfield project for alumina bricks, which is now operational. Since production began in May, we are fully booked for the next six months, with orders extending until May 2025. This demonstrates the credibility we have quickly established, driven by our team’s experience and the company’s agility, which has been a core strength for us in the steel industry and will now benefit our cement initiatives.
As a 100 per cent Indian-owned multinational company, IFGL stands out in the refractory sector, where most leading players providing cement solutions are foreign-owned. We are listed on the stock exchange and have a global footprint, including plants in the United Kingdom, where we are the largest refractory producer, thanks to our operations with Sheffield Refractories and Monocon. Additionally, we have a plant in the United States that produces state-of-the-art black refractories for critical steel applications, a plant in Germany providing filtering solutions for the foundry sector, and a base in China, ensuring secure access to high-quality raw materials.
China, as a major source of pure raw materials for refractories, is critical to the global supply chain. We have strategically developed our own base there, ensuring both raw material security and technological advancements. For instance, Sheffield Refractories is a leader in cutting-edge shotcreting technology, which is particularly relevant to the cement industry. Since downtime in cement plants incurs costs far greater than refractory expenses, this technology, which enables rapid repairs and quicker return to production, is a game-changer. Leading cement manufacturers in the country have already expressed significant interest in this service, which we plan to launch in March 2025.
With this strong foundation, we are entering the cement industry with confidence and a commitment to delivering innovative and efficient solutions.
Could you share any differences you’ve observed in business operations between regions like Europe, India, and China? How do their functionalities and approaches vary?
When it comes to business functionality, Europe is unfortunately a shrinking market. There is a noticeable lack of enthusiasm, and companies there often face challenges in forming partnerships with vendors. In contrast, India presents an evolving scenario where close partnerships with vendors have become a key trend. About 15 years ago, refractory suppliers were viewed merely as vendors supplying commodities. Today, however, they are integral to the customer’s value creation chain.
We now have a deep understanding of our customers’ process variations and advancements. This integration allows us to align our refractory solutions with their evolving processes, strengthening our role as a value chain partner. This collaborative approach is a major differentiator, and I don’t see it happening anywhere else on the same scale. Additionally, India is the only region globally experiencing significant growth. As a result, international players are increasingly looking at India as a potential market for expansion. Given this, we take pride in being an Indian company for over four decades and aim to contribute to making Aatma Nirbhar Bharat (self-reliant India) a reality.
Moving on to the net-zero mission, it’s crucial to discuss our contributions to sustainability in the cement industry. Traditionally, we focused on providing burnt bricks, which require significant fuel consumption during firing and result in higher greenhouse gas emissions, particularly CO2. With the introduction of Sheffield Refractories’ green technology, we are now promoting the use of green refractories in cement production. Increasing the share of green refractories naturally reduces CO2 emissions per ton of clinker produced.
Our honourable Prime Minister has set the goal of achieving net-zero emissions by 2070. We are committed to being key enablers of this vision by expanding the use of green refractories and providing sustainable solutions to the cement industry, reducing reliance on burnt refractories.

Technology is advancing rapidly. What role does it play in helping you achieve your targets and support the cement industry?
Technology plays a critical role in achieving our goals and supporting the cement industry. As I mentioned earlier, the reduction in specific refractory consumption is driven by two key factors: refining customer processes and enhancing refractory quality. By working closely as partners with our customers, we gain a deeper understanding of their evolving needs, enabling us to continuously innovate. For example, in November 2022, we established a state-of-the-art research centre in India for IFGL, something we didn’t have before.
The primary objective of this centre is to leverage in-house technology to enhance the utilisation of recycled materials in manufacturing our products. By increasing the proportion of recycled materials, we reduce the depletion of natural resources and greenhouse gas emissions. In essence, our focus is on developing sustainable, green refractories while promoting circularity in our business processes. This multi-faceted approach ensures we contribute to environmental sustainability while meeting the industry’s demands.

Of course, this all sounds promising, but there must be challenges you’re facing along the way. Could you elaborate on those?
One challenge we face is related to India’s mineral resources. For instance, there are oxide deposits in the Saurashtra region of Gujarat, but unfortunately, they contain a higher percentage of impurities. On the magnesite side, India has deposits in three regions: Salem in Tamil Nadu, Almora in Uttarakhand, and Jammu. However, these magnesite deposits also have impurities. We believe the government should take up research and development initiatives to beneficiate these minerals, which are abundantly available in India, and make them suitable for producing high-end refractories. This task is beyond the capacity of an individual refractories company and requires focused policy intervention. While the government is undertaking several initiatives, beneficiation of minerals like Indian magnesite and Indian oxide needs to become a key area of focus.
Another crucial policy support we require is recognising the importance of refractories in industrial production. The reality is that without refractories, not even a single kilogram of steel or cement can be produced. Despite this, refractories are not included in the list of core industries. We urge the government to designate refractories as a core industry, which would ensure dedicated focus, including R&D allocations for initiatives like raw material beneficiation. At IFGL, we are taking proactive steps to address some of these challenges. For instance, we own Sheffield Refractories, a global leader in shotcrete technology. We are bringing this technology to India, with implementation planned from March onwards. Additionally, our partnership with Marvel Refractories in China enables us to leverage their expertise in providing high-quality refractories for steel and cement industries worldwide.
While we are making significant efforts at our level, policy support from the government—such as recognising refractories as a core industry and fostering research for local raw material beneficiation—would accelerate progress. This combined effort would greatly enhance India’s capability to produce high-end refractories and meet the growing demands of critical industries.

Could you share your opinion on the journey toward achieving net-zero emissions? How do you envision this journey unfolding?
The journey toward net zero is progressing steadily. For instance, even at this conference, we can observe the commitment as a country toward this goal. Achieving net zero involves having a clear starting point, a defined objective, and a pace to progress. I believe we are already moving at an impressive speed toward realising this goal. One example is the significant reduction in energy consumption per ton of clinker, which has halved over the past 7–8 years—a remarkable achievement.
Another critical aspect is the emphasis on circularity in the cement industry. The use of gypsum, which is a byproduct of the fertiliser and chemical industries, as well as fly ash generated by the power industry, has been effectively incorporated into cement production. Additionally, a recent advancement involves the use of calcined clay as an active component in cement. I am particularly encouraged by discussions around incorporating 12 per cent to 15 per cent limestone into the mix without the need for burning, which does not compromise the quality of the final product. These strategies demonstrate the cement industry’s constructive and innovative approach toward achieving net-zero emissions. The pace at which these advancements are being adopted is highly encouraging, and I believe we are on a fast track to reaching this critical milestone.

– Kanika Mathur

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Concrete

The 15th Cement Expo and Conference

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With over 100 exhibitors, the Cement Expo witnessed 3,000+ business visitors, including CXOs, plant heads, technology leaders, procurement heads, government officials and major contractors and developers.

The 15th Cement Expo and Conference also served as a vibrant marketplace of ideas, technology advancements and strategic collaborations. Across the exhibition halls, visitors interacted with global OEMs, breakthrough start-ups and established service providers demonstrating solutions spanning digital optimisation, energy efficiency, wear protection, predictive maintenance and next-generation logistics. Live demos and technical walkthroughs enabled plant and procurement teams to evaluate equipment performance up close, leading to numerous qualified business enquiries and partnership discussions.
The atmosphere remained energetic throughout the two days, with exhibitors noting a marked increase in high-quality footfall and focused technical conversations. As India’s cement sector accelerates its shift toward automation, sustainability and higher-capacity operations, the Expo reaffirmed its position as a must-attend platform for companies seeking visibility, market expansion and technology-led differentiation.
Let’s look at the 15th Cement Expo snapshots:

Our partners for Indian Cement Review Conference & Awards and Cement Expo 2025
Powered By: PhillipCapital India
Platinum Partners: TIDC India & Shanthi Gears, and SS Gas Lab Asia
Gold Partners: Flender Drives, Fuller Technologies, Nanolike, and CG Power & Industrial Solutions
Presentation Partners: Humboldt Wedag India, Loesche India, ATS Conveyors, Hindustan Petroleum Corporation Limited, CEMENGAL, ROXUL ROCKWOOL, Thermofisher Scientific India, and VE Commercial Vehicles
Associate Partners: TKIL Industries (formerly Thyssenkrupp Industries India), and Star Cement
International Media Partner: Cement and its Application
Business Intelligence Partner: Impacct
Supported by: Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Heavy Industries, First Construction Council, Global Cement and Concrete Association (GCCA), Cement Manufacturers Association (CMA), Building Materials and Technology Promotion Council (BMTPC), Government e-Marketplace (GeM), Telangana Chambers of Commerce & Industry (TCCI), Indian Institute of Materials Management (IIMM).

Our sponsors For MultiLogistix Conference & Awards 2025:
Presented By: Infrastructure Today
Silver Partner: Isa Logistics
Media Partners: Cargo Connect, Indian Transport & Logistics News
Supported by: Ministry of Road Transport & Highways, Indian Maritime Centre, All India Transporter’s Welfare Association, The Air Cargo Agents Association of India, Invest India, National Highway Logistics Management Limited, Chartered Institute of Logistics and Transport, Brihanmumbai Custom Brokers Association, National Association of Container Freight Stations, Association Of Multimodal Transport Operators of India.

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Concrete

Indian Cement Review Conference 2025

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The ICR Conference explored the theme of driving sustainability through technology, wherein industry experts shared insights on policy, market synergies and technological pathways that are aiding low-carbon, efficient and sustainable construction. Through insightful panel discussions and presentations, innovative and path-breaking ideas emerged that would lead the Indian cement sector towards a brighter, greener future. The Multilogistix Conference was also held concurrently, which comprised building smarter, more sustainable supply chains and digital transformation.

The conference started with the VIP guests participating in the lamp lighting and ribbon cutting ceremonies, followed by a welcome speech by Pratap Padode, Founder, ASAPP Info Global Group & Editor-in-Chief Indian Cement Review; and an address by Sumit Banerjee, Director, JSW Cement and Former MD, ACC and Chairman of Editorial Advisory Board of Indian Cement Review. Guests of Honour Sudhanshu Pandey, Election Commissioner (UTs); Sagar Kadu, Director – Logistics Division, Ministry of Commerce and Industry, Government of India; and Sanjay Bhatia, Upalokayukta, Govt of Maharashtra, Chairman of MultiLogistix Committee, also enlightened the audience with their insights.
In his welcome speech Padode pointed out, “Today, we are talking about decarbonisation, which is the theme of our conference and of our annual issue, and we have COP30 going on in Brazil at the same time.
And yes, it’s a difficult subject to tackle in a year or a decade or even a couple of decades, but we are seriously recognising it—probably by force of nature—but we are. And I think government policy is supporting the move to make sustainability a part of the exercise that all companies have to undergo. Infrastructure is on a roll as far as our country is concerned. Eleven trillion rupees have been allocated in our budget, which is still short of what ought to be. We should be somewhere in the range of 16 to 17 trillion, as per the plan made by the government themselves earlier. But we can see visible changes in cities.”

Thoughts on decarbonisation
In his speech, Kadu said, “Today, when we speak about India’s Vision 2047 or the USD 32 trillion economic goal, logistics is playing an extremely important role. As all economic sectors evolve, the logistics sector is also rapidly transforming—adapting to change, embracing innovation, and strengthening collaboration. Conferences like this, and partnerships among stakeholders, allow us to exchange ideas, understand each other’s needs, and build the kind of cooperative ecosystem that lies at the core of government policies such as PM GatiShakti and the National Logistics Policy. Whether it is cement, steel or agriculture, bringing sectors together and learning from industry experience is central to how we design policies going forward.
Cement plays a vital role in major national programmes like Sagarmala, Bharatmala and various Pariyojanas, and therefore seamless infrastructure connectivity becomes essential from both the government and industry perspective.”
Giving insights on the theme, Pandey elaborated, “Collaboration is not just a slogan, it is a realistic path forward, which we all must encompass. The next decade offers unprecedented opportunities for the sector as India’s infrastructure growth history is unfolding gradually.
The alternative raw materials and fuels from industrial by-products like fly ash, slag to agricultural residues and green hydrogen, and the potential to replace carbon intensive inputs is immense. The carbon capture and utilisation technologies and converting it into construction material or chemicals are rapidly evolving. India can be a testbed for all such technologies. Circular economy is another area where we all have to work. The cement sector can play a central role in waste, co-processing, reducing landfill burdens and supporting the Swachh Bharat Mission in a big way. Green financing will give us to access climate finance, green bonds and ESG linked funding, which can accelerate adoption of clean technologies across the value chain.”
“I am very optimistic about what is happening in India. I was part of the team that prepared the Sagar Mala vision and later the Vision 2030 for shipping and ports. I remember deliberating across nearly 250 meetings with all kinds of stakeholders at that time, including the private sector. And now, I am actually seeing the results of that work. PM Gati Shakti is essentially a combination of Sagar Mala, Bharat Mala, the railways—all integrated together. I was pleasantly surprised to learn that there is now a PM Gati Shakti University dedicated entirely to logistics.
It is extremely encouraging to see a university working so comprehensively on this sector. The great work being done is now visible on the ground. I am from Mumbai, and if you have recently visited the city, you would have seen how completely it has transformed. The Coastal Road, Atal Setu, the metro, the Navi Mumbai International Airport, Samruddhi Marg joining Nagpur to Mumbai—all have been completed. Everything we used to plan in the war rooms at that time, whether with the Government of Maharashtra or the Prime Minister’s Office, is now beginning to show tangible results. That is why I am very optimistic about our progress—and cement is at the heart of this progress,” Bhatia expounded.
Later during the conference, Deepak Shetty, Former Secretary to the Government of India and Director General of Shipping, said, “All of us are aware that we are the fastest-growing economy in the world with by far a 6 to 7.7 per cent GDP growth rate, and by all accounts—be it the International Monetary Fund, the Asian Development Bank, the World Bank, the OECD— all of them prophesy, and the prognosis of all of them is that come 2050 India is poised to become global number two as an economy. That’s well beyond India’s 100 years of independence celebration. We are possibly poised to become number two next only to China, probably overtaking the US.”

Thought-provoking exchange of ideas
The panel discussions spanned across the two days of the conference and were interspersed with individual presentations from industry experts and brand partners. The panels comprised subject matter experts who led the conversation on decarbonisation of the cement sector.

Presentations by industry experts

Across the two-day conference, many industry experts also presented papers and showcased case studies highlighting the numerous innovations taking place in the industry, across different verticals that are helping take the Indian cement sector towards its Net Zero target. The keynote address was delivered by Parlikar who spoke about the importance of adopting circular economy principles to reduce environmental footprint and strengthen long-term economic resilience.

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