Concrete
Change is inevitable and businesses must be ready
Published
4 years agoon
By
admin
Anil Sharma, Chief Financial Officer (CFO), HeidelbergCement India, shares his views on managing finances, investments and costs, in the face of inevitable changes in the cement sector.
Cement industry is capital intensive.
How does HeidelbergCement deal with its capex requirement?
Cement is one of the most highly consumed materials amongst all materials. The Government of India also looks at the growth of the industry but it requires a large capital to establish and set up the plant, maintain and adhere to all the compliances set for the industry.
At HeidelbergCement, we have a systematic way of assessing the capex requirement. We work in advance with a plan of three years in hand. During our planning, we split the capex requirement into various categories. Starting environmental, safety and legal capex requirements as they are mandatory and cannot be deferred. Then we plan for replacement capex, by lapse of time we need to complete for the maintenance of plants etc. Thereafter, we look for improvement in capex. With passing time and advancement of technology, we have to look for upgrades in the plants, which could be in the process, efficiency or productivity area. The improvement capex is used here. The last category of capex is the expansion or strategy capex, which is used for new product development, for entering new markets, etc.
When we do the assessment of capex for our organisation, we split the requirement into own versus hire. Example, if we need a bus to transport our employees, we need not buy it, the same can be hired. In HeidelbergCement, this is a very systematic way of assessing our asset capex requirement. We analyse the use, evaluate risk, profitability and payback and if the result is in favour of the organisation, then an authorisation is created for the capex to own a certain asset with all details of its requirement, wear and tear etc. Only upon approval of the same, the process is taken further and procurement is done. As a thumb rule in HeidelbergCement, we maintain 40 per cent of our annual depreciation as a sustainable capex.
This is not the end of the story – capex is a big thing at our organisation. We always go in for a post investment review. One part is to complete the capex cycle and the next is to assess if that decision was correct. This assessment is done a year after the project commenced and another assessment is done by the corporate finance department. They check if the assumptions taken into account were correct and projected results have been achieved. During the post investment reviews, we come across insights, which are shared with other departments and plants. It helps fine tune their workings on the same.
What are the major cost elements for producing cement and how have these cost dynamics changed in the recent past?
Cement manufacturing is a simple process. But the cement production costs are very dynamic. It changes with various changes in elements of the cost and it is also advisable to be flexible while taking cost decisions for the product.
India is a very competitive market for cement and to be relevant for the same, the cost should be competitive and brands should also be cost efficient. To decide the cost of the end product, the method is not a simple straight line, it needs to be broken down into different cost elements. In our organisation, we have the process of splitting cost in two parts, i.e., variable cost and fixed cost.
The variable costs are further split into the cost of various elements starting with limestone, the key raw material for cement manufacturing. It is acquired from our own mines and sometimes additives have to be purchased to bring it to a certain quality. Once the limestone is obtained, crushed and sent to the plant, the second cost element utilised is the power and fuel. This is the biggest cost element for the manufacturing of cement and currently with increase in fuel and energy cost, it accounts for approximately 30 to 40 per cent of the total cost. Power is either taken from the grid or purchased from the third party. In recent times, we have started using renewable power by setting up our own plants or by using power from wastage recovery power. The third element to cost are other cementitious materials like fly ash, slag and other packing materials that also play a big role in the manufacturing of cement.
Another category that accounts for variable cost is logistics. Materials in bulk are brought into the plant and end products are taken out of there. The outward transportation contributes to approximately 20 per cent of the total cost and is the second largest category of variable cost.
Fixed costs are also divided into three categories i.e., fixed production cost, sales and marketing costs and other administrative costs.
Fixed production costs include tax, duty, etc. that are an essential in the cement manufacturing process. The sales and marketing costs include the budgeted amounts for promotion, cost of sales offices, warehouses, etc. Administrative costs include travel of personnel, office rent etc. Fixed cost account to approximately 15 per cent of the total cement cost.
What initiatives has the company taken to optimise its cost?
In cement, we always say that there is room for improvement. Although the process is set and manufacturing is done for about 150 years, experience tells us that there are always methods to optimise costs for the industry. In our organisation, we have a continuous improvement programme, where we allow our people to look into various elements of processes and costs, give suggestions and with that we improve processes, efficiency and productivity.
HeidelbergCement has taken multiple measures to optimise cost. First it has taken into account the fuel cost. We have brought flexibility in fuels that we use for clinker manufacturing depending upon their cost. The fuel that is lesser in cost, we use that for the production process. We have also implemented an alternative fuel plant in the manufacturing process and use many kinds of alternative fuels like biomass, municipal waste, pharma waste etc. that helps us optmise our costs and reduce carbon footprint.
Another cost optimisation effort has been taken into the power category where we use power from renewable sources. We have set up our own solar power plants and have also entered into a long term agreement with a power developer who supplies power around the clock from renewable sources. Of our total power consumption currently, we are using 25 per cent green power for our plants. We are also working towards reducing our dependence on grid power which will help us optimise our costs.
In the recent past, we have taken up some debottlenecking projects to optimise logistics cost. We have made despatch flexibile between road and rail depending upon which costs less at the time of despatch. This helps us bring more quantity of material in and out of the plant.
Internal production processes need to be simplified to create an environment of efficiency and productivity that will also help us optimise our costs.
What are the various types of direct / indirect tax, cement industry undergoes?
The cement industry is a highly tax levied industry. GST is the highest and known to the people tax at 28 per cent. But there are other taxes like royalty on limestone or other minerals, district mineral funds, electricity duties, import duty, custom duties etc. All taxes combined amount to approximately 40 per cent of net sales of the total production.
Share your experience on the transformation of indirect taxes under the GST regime? Are there any challenges due to GST implementation? What initiatives are taken to overcome them?
GST has been one of the biggest tax reforms in India. Earlier there were many taxes, which were different in different states, but with GST it has become one nation, one tax system which is a welcome decision for the industry. It has brought an ease to doing business when we deal with many states for materials etc. When the taxes were different, the processes were also different and paperwork was cumbersome. GST implementation has made processes smoother and transparent, thus, easing logistics and procurement for the industry. Calculation methodology of GST is simple. The organisation may deal with one state or multiple, all information is available on government portals making work flow smooth and transparent.
The change from state wise tax to one nation tax, GST, came with its own set of challenges. This meant changing of calculation, different invoicing, and a lot of rework of methods like stock transfer from state to state. The initial transition with GST was full of challenges especially with the MSME sector who were not digitised and informed enough. The hiccups that our smaller vendors were experiencing in the shift to GST was coming back to us and causing a delay in the entire chain of processes.
We educated our employees and vendors about the new taxation system with the help of consultants who were experts in this field, to help them understand and transition smoothly. We created points of contacts for these vendors that helped them file their taxes.
In nutshell, GST became a catalyst for smooth business function in India.
How has digitalisation and automation played a game-changing role in the finance sector for the cement industry?
Our business is volume driven and all transactional activities are in large numbers and quantities.
Raising invoices, debit notes, credit notes etc. is done everyday, multiple times a day. These jobs require a lot of labour and can also lead to a lot of errors when done manually at such a large scale. Digitalisation has been a game changer for the industry. For optimising costs, for removing errors and a lot more. The concept of bringing technology to the business was a costly proposition, but now people are understanding that it is for the betterment of the business.
In HeidelbergCement, digital transformation is changing the landscape of the business, not only in the finance department but also in the manufacturing activity. We have made this a project on a global level and have identified three pillars for digitalisation for the business.
H-Connect: The real time, end to end experience for our customers. Through this portal customers can know about the statement of account, dispatch of material, track it, place order etc.
H-Produce: This portal is related to our manufacturing system. We have moved to the next mile with respect to digitalisation where we are bringing technology to our production, be it maintenance of equipment, track all KPIs of production parameters reducing maintenance cost and increasing productivity of man and machine.
H-Service: All the service related processes are digitised through this portal. We have implemented Robotic Process Automation (RPA), which is also gaining momentum in our manufacturing side where mundane human tasks are done by robots.
What are the risks / concerns for the cement industry in the short to medium term?
Cement industry is going through a difficult time. The biggest short term risk is the increase in the input cost of the cement, which has increased significantly. Similarly, the energy and fuel price have increased in the recent past and all of the increased cost burden cannot be passed on to the market. The demand in recent times has also been moderate, and not increased as expected. One of the major reasons for this increase in cost and lack of demand is inflation. This can be a further risk as our Indian rupee weakens in comparison to the dollar, which would still increase the input costs.
Another risk is the liquidity crunch in the market. Not only in business, but with a higher fiscal deficit of the central government, it leaves less room for them to bring rapid development in infrastructure growth as planned in the short to medium term which can make the growth of cement industry slower. This will also lead to unemployment which will also impact GDP growth. If this is not timely controlled, the cycle of inflation to purchasing capacity will remain imbalanced and it shall impact the top line and bottom line of companies and business due to lack of consumption. This will also defer new investments in the business. These challenges have to be overcome in the short term, otherwise its impact shall stay on the industry for a longer duration than expected.
In the cement industry, the input cost increase and liquidity will impact other impacts and services, but the risk that I foresee is the availability of cementitious materials. One of the biggest materials is fly ash, and the availability is not the same as it was 10 years ago. Sometimes, it needs to be procured from farther areas. Similarly, slag which is the by-product of steel companies, is also getting scarce. These being contributors to decarbonising of cement will be much in demand and lower in supply. These materials can be a risk medium to long term. The industry must invest in research and development in identifying newer alternative raw materials and supporting the environment.
What are the key priorities for the next two-three years? What recommendations do you have for the Indian business ecosystem?
The foremost priority for us at the moment is to reduce our carbon footprint. The process of calcination of the limestone, emits carbon. We need to reduce this emission from the entire cement manufacturing process.
There are two ways to reduce carbon emission from the cement manufacturing process. First would be to increase the use of cementitious materials and make more blended cements, and the other would be to use alternative fuels for the process of clinker making.
We have already started the process and our current alternative fuel consumption is in the range of 8 to 10 per cent of thermal substitution rate of total fuel and target to increase it to 20 per cent. There are many constraints in the availability and quality of alternative fuels, obtaining municipal waste of the required standard, logistic cost of acquiring the same etc. We have to do a cost analysis of alternative fuel to fossil based fuel to understand, which is beneficial to the business.
These are the key priorities for the business to reduce carbon footprint.
Another focus we have is to increase the use of renewable power. We purchase power and if that purchased power is thermal power, then it contributes to the carbon footprint. Thus, we want to increase the percentage of renewable power consumption in our total power consumption. capex is set aside in that direction and steps are being taken to bring this in action.
The third focus is automation and technology which is the need of the hour. If the business needs to reach a certain level of maturity, customer satisfaction and adapt to newer methods of business that are quick and real time, the solution is to integrate systems and processes to the automation and digital tools. This would also include integrating vendors, third parties and customers in this process.
In my experience, the recommendation I can give to any business especially in the post pandemic era is to always be ready with a plan B. There are a lot of uncertainties in business and plans should be made in a manner to accommodate change and keep it flexible. Change is inevitable and businesses must be ready to adapt to these changes that are coming in the dynamic world.
Another recommendation to any business should be to evaluate their risks. They must take all kinds of steps to understand and mitigate risks that are to come to any task. They should always do a risk-benefit analysis and not put all their resources in a single project, rather allocate the same in the one that stands out in your analysis.
In our organisation, we split our risk evaluation matrix into four baskets called risk atlas. Market risk would include competition, new product launch, change in customer behaviour. Second would be legal and compliances risk, which would include risks arising from new policies, new regulations, compliances etc. Third risk would be operational risk that are related to production, availability of raw material, dependency on vendors, etc. Lastly, financial risk, which would include bad debts, working capital requirements, tax risk, etc. We always have the processes and policies in place where we deliberate and prioritise tasks and decide where the funds and resources should be allocated.
A very important recommendation is the cash reserve. Any business must focus on their cash resources and availability. They must prioritise spending to support their growth. They must focus on cash inflow and optimise their cash conversion cycle. It is important to keep inventory moving and not blocking their funds.
Last recommendation for the entire business ecosystem would be to allow the next generations to come on this planet to live with all the resources we have and in a safe environment. That is called sustainability. It could be a cost centre by businesses but it actually is an investment towards the future of any business. If businesses are not woke today and don’t bring down the carbon footprint or give back to the society there will not be any real growth in the business environment and it is not justified for the same.
-Kanika Mathur
Concrete
Refractory demands in our kiln have changed
Published
3 days agoon
February 20, 2026By
admin
Radha Singh, Senior Manager (P&Q), Shree Digvijay Cement, points out why performance, predictability and life-cycle value now matter more than routine replacement in cement kilns.
As Indian cement plants push for higher throughput, increased alternative fuel usage and tighter shutdown cycles, refractory performance in kilns and pyro-processing systems is under growing pressure. In this interview, Radha Singh, Senior Manager (P&Q), Shree Digvijay Cement, shares how refractory demands have evolved on the ground and how smarter digital monitoring is improving kiln stability, uptime and clinker quality.
How have refractory demands changed in your kiln and pyro-processing line over the last five years?
Over the last five years, refractory demands in our kiln and pyro line have changed. Earlier, the focus was mostly on standard grades and routine shutdown-based replacement. But now, because of higher production loads, more alternative fuels and raw materials (AFR) usage and greater temperature variation, the expectation from refractory has increased.
In our own case, the current kiln refractory has already completed around 1.5 years, which itself shows how much more we now rely on materials that can handle thermal shock, alkali attack and coating fluctuations. We have moved towards more stable, high-performance linings so that we don’t have to enter the kiln frequently for repairs.
Overall, the shift has been from just ‘installation and run’ to selecting refractories that give longer life, better coating behaviour and more predictable performance under tougher operating conditions.
What are the biggest refractory challenges in the preheater, calciner and cooler zones?
• Preheater: Coating instability, chloride/sulphur cycles and brick erosion.
• Calciner: AFR firing, thermal shock and alkali infiltration.
• Cooler: Severe abrasion, red-river formation and mechanical stress on linings.
Overall, the biggest challenge is maintaining lining stability under highly variable operating conditions.
How do you evaluate and select refractory partners for long-term performance?
In real plant conditions, we don’t select a refractory partner just by looking at price. First, we see their past performance in similar kilns and whether their material has actually survived our operating conditions. We also check how strong their technical support is during shutdowns, because installation quality matters as much as the material itself.
Another key point is how quickly they respond during breakdowns or hot spots. A good partner should be available on short notice. We also look at their failure analysis capability, whether they can explain why a lining failed and suggest improvements.
On top of this, we review the life they delivered in the last few campaigns, their supply reliability and their willingness to offer plant-specific custom solutions instead of generic grades. Only a partner who supports us throughout the life cycle, which includes selection, installation, monitoring and post-failure analysis, fits our long-term requirement.
Can you share a recent example where better refractory selection improved uptime or clinker quality?
Recently, we upgraded to a high-abrasion basic brick at the kiln outlet. Earlier we had frequent chipping and coating loss. With the new lining, thermal stability improved and the coating became much more stable. As a result, our shutdown interval increased and clinker quality remained more consistent. It had a direct impact on our uptime.
How is increased AFR use affecting refractory behaviour?
Increased AFR use is definitely putting more stress on the refractory. The biggest issue we see daily is the rise in chlorine, alkalis and volatiles, which directly attack the lining, especially in the calciner and kiln inlet. AFR firing is also not as stable as conventional fuel, so we face frequent temperature fluctuations, which cause more thermal shock and small cracks in the lining.
Another real problem is coating instability. Some days the coating builds too fast, other days it suddenly drops, and both conditions impact refractory life. We also notice more dust circulation and buildup inside the calciner whenever the AFR mix changes, which again increases erosion.
Because of these practical issues, we have started relying more on alkali-resistant, low-porosity and better thermal shock–resistant materials to handle the additional stress coming from AFR.
What role does digital monitoring or thermal profiling play in your refractory strategy?
Digital tools like kiln shell scanners, IR imaging and thermal profiling help us detect weakening areas much earlier. This reduces unplanned shutdowns, helps identify hotspots accurately and allows us to replace only the critical sections. Overall, our maintenance has shifted from reactive to predictive, improving lining life significantly.
How do you balance cost, durability and installation speed during refractory shutdowns?
We focus on three points:
• Material quality that suits our thermal profile and chemistry.
• Installation speed, in fast turnarounds, we prefer monolithic.
• Life-cycle cost—the cheapest material is not the most economical. We look at durability, future downtime and total cost of ownership.
This balance ensures reliable performance without unnecessary expenditure.
What refractory or pyro-processing innovations could transform Indian cement operations?
Some promising developments include:
• High-performance, low-porosity and nano-bonded refractories
• Precast modular linings to drastically reduce shutdown time
• AI-driven kiln thermal analytics
• Advanced coating management solutions
• More AFR-compatible refractory mixes
These innovations can significantly improve kiln stability, efficiency and maintenance planning across the industry.
Concrete
Digital supply chain visibility is critical
Published
3 days agoon
February 20, 2026By
admin
MSR Kali Prasad, Chief Digital and Information Officer, Shree Cement, discusses how data, discipline and scale are turning Industry 4.0 into everyday business reality.
Over the past five years, digitalisation in Indian cement manufacturing has moved decisively beyond experimentation. Today, it is a strategic lever for cost control, operational resilience and sustainability. In this interview, MSR Kali Prasad, Chief Digital and Information Officer, Shree Cement, explains how integrated digital foundations, advanced analytics and real-time visibility are helping deliver measurable business outcomes.
How has digitalisation moved from pilot projects to core strategy in Indian cement manufacturing over the past five years?
Digitalisation in Indian cement has evolved from isolated pilot initiatives into a core business strategy because outcomes are now measurable, repeatable and scalable. The key shift has been the move away from standalone solutions toward an integrated digital foundation built on standardised processes, governed data and enterprise platforms that can be deployed consistently across plants and functions.
At Shree Cement, this transition has been very pragmatic. The early phase focused on visibility through dashboards, reporting, and digitisation of critical workflows. Over time, this has progressed into enterprise-level analytics and decision support across manufacturing and the supply chain,
with clear outcomes in cost optimisation, margin protection and revenue improvement through enhanced customer experience.
Equally important, digital is no longer the responsibility of a single function. It is embedded into day-to-day operations across planning, production, maintenance, despatch and customer servicing, supported by enterprise systems, Industrial Internet of Things (IIoT) data platforms, and a structured approach to change management.
Which digital interventions are delivering the highest ROI across mining, production and logistics today?
In a capital- and cost-intensive sector like cement, the highest returns come from digital interventions that directly reduce unit costs or unlock latent capacity without significant capex.
Supply chain and planning (advanced analytics): Tools for demand forecasting, S&OP, network optimisation and scheduling deliver strong returns by lowering logistics costs, improving service levels, and aligning production with demand in a fragmented and regionally diverse market.
Mining (fleet and productivity analytics): Data-led mine planning, fleet analytics, despatch discipline, and idle-time reduction improve fuel efficiency and equipment utilisation, generating meaningful savings in a cost-heavy operation.
Manufacturing (APC and process analytics): Advanced Process Control, mill optimisation, and variability reduction improve thermal and electrical efficiency, stabilise quality and reduce rework and unplanned stoppages.
Customer experience and revenue enablement (digital platforms): Dealer and retailer apps, order visibility and digitally enabled technical services improve ease of doing business and responsiveness. We are also empowering channel partners with transparent, real-time information on schemes, including eligibility, utilisation status and actionable recommendations, which improves channel satisfaction and market execution while supporting revenue growth.
Overall, while Artificial Intelligence (AI) and IIoT are powerful enablers, it is advanced analytics anchored in strong processes that typically delivers the fastest and most reliable ROI.
How is real-time data helping plants shift from reactive maintenance to predictive and prescriptive operations?
Real-time and near real-time data is driving a more proactive and disciplined maintenance culture, beginning with visibility and progressively moving toward prediction and prescription.
At Shree Cement, we have implemented a robust SAP Plant Maintenance framework to standardise maintenance workflows. This is complemented by IIoT-driven condition monitoring, ensuring consistent capture of equipment health indicators such as vibration, temperature, load, operating patterns and alarms.
Real-time visibility enables early detection of abnormal conditions, allowing teams to intervene before failures occur. As data quality improves and failure histories become structured, predictive models can anticipate likely failure modes and recommend timely interventions, improving MTBF and reducing downtime. Over time, these insights will evolve into prescriptive actions, including spares readiness, maintenance scheduling, and operating parameter adjustments, enabling reliability optimisation with minimal disruption.
A critical success factor is adoption. Predictive insights deliver value only when they are embedded into daily workflows, roles and accountability structures. Without this, they remain insights without action.
In a cost-sensitive market like India, how do cement companies balance digital investment with price competitiveness?
In India’s intensely competitive cement market, digital investments must be tightly linked to tangible business outcomes, particularly cost reduction, service improvement, and faster decision-making.
This balance is achieved by prioritising high-impact use cases such as planning efficiency, logistics optimisation, asset reliability, and process stability, all of which typically deliver quick payback. Equally important is building scalable and governed digital foundations that reduce the marginal cost of rolling out new use cases across plants.
Digitally enabled order management, live despatch visibility, and channel partner platforms also improve customer centricity while controlling cost-to-serve, allowing service levels to improve without proportionate increases in headcount or overheads.
In essence, the most effective digital investments do not add cost. They protect margins by reducing variability, improving planning accuracy, and strengthening execution discipline.
How is digitalisation enabling measurable reductions in energy consumption, emissions, and overall carbon footprint?
Digitalisation plays a pivotal role in improving energy efficiency, reducing emissions and lowering overall carbon intensity.
Real-time monitoring and analytics enable near real-time tracking of energy consumption and critical operating parameters, allowing inefficiencies to be identified quickly and corrective actions to be implemented. Centralised data consolidation across plants enables benchmarking, accelerates best-practice adoption, and drives consistent improvements in energy performance.
Improved asset reliability through predictive maintenance reduces unplanned downtime and process instability, directly lowering energy losses. Digital platforms also support more effective planning and control of renewable energy sources and waste heat recovery systems, reducing dependence on fossil fuels.
Most importantly, digitalisation enables sustainability progress to be tracked with greater accuracy and consistency, supporting long-term ESG commitments.
What role does digital supply chain visibility play in managing demand volatility and regional market dynamics in India?
Digital supply chain visibility is critical in India, where demand is highly regional, seasonality is pronounced, and logistics constraints can shift rapidly.
At Shree Cement, planning operates across multiple horizons. Annual planning focuses on capacity, network footprint and medium-term demand. Monthly S&OP aligns demand, production and logistics, while daily scheduling drives execution-level decisions on despatch, sourcing and prioritisation.
As digital maturity increases, this structure is being augmented by central command-and-control capabilities that manage exceptions such as plant constraints, demand spikes, route disruptions and order prioritisation. Planning is also shifting from aggregated averages to granular, cost-to-serve and exception-based decision-making, improving responsiveness, lowering logistics costs and strengthening service reliability.
How prepared is the current workforce for Industry 4.0, and what reskilling strategies are proving most effective?
Workforce preparedness for Industry 4.0 is improving, though the primary challenge lies in scaling capabilities consistently across diverse roles.
The most effective approach is to define capability requirements by role and tailor enablement accordingly. Senior leadership focuses on digital literacy for governance, investment prioritisation, and value tracking. Middle management is enabled to use analytics for execution discipline and adoption. Frontline sales and service teams benefit from
mobile-first tools and KPI-driven workflows, while shop-floor and plant teams focus on data-driven operations, APC usage, maintenance discipline, safety and quality routines.
Personalised, role-based learning paths, supported by on-ground champions and a clear articulation of practical benefits, drive adoption far more effectively than generic training programmes.
Which emerging digital technologies will fundamentally reshape cement manufacturing in the next decade?
AI and GenAI are expected to have the most significant impact, particularly when combined with connected operations and disciplined processes.
Key technologies likely to reshape the sector include GenAI and agentic AI for faster root-cause analysis, knowledge access, and standardisation of best practices; industrial foundation models that learn patterns across large sensor datasets; digital twins that allow simulation of process changes before implementation; and increasingly autonomous control systems that integrate sensors, AI, and APC to maintain stability with minimal manual intervention.
Over time, this will enable more centralised monitoring and management of plant operations, supported by strong processes, training and capability-building.
Concrete
Redefining Efficiency with Digitalisation
Published
3 days agoon
February 20, 2026By
admin
Professor Procyon Mukherjee discusses how as the cement industry accelerates its shift towards digitalisation, data-driven technologies are becoming the mainstay of sustainability and control across the value chain.
The cement industry, long perceived as traditional and resistant to change, is undergoing a profound transformation driven by digital technologies. As global infrastructure demand grows alongside increasing pressure to decarbonise and improve productivity, cement manufacturers are adopting data-centric tools to enhance performance across the value chain. Nowhere is this shift more impactful than in grinding, which is the energy-intensive final stage of cement production, and in the materials that make grinding more efficient: grinding media and grinding aids.
The imperative for digitalisation
Cement production accounts for roughly 7 per cent to 8 per cent of global CO2 emissions, largely due to the energy intensity of clinker production and grinding processes. Digital solutions, such as AI-driven process controls and digital twins, are helping plants improve stability, cut fuel use and reduce emissions while maintaining consistent product quality. In one deployment alongside ABB’s process controls at a Heidelberg plant in Czechia, AI tools cut fuel use by 4 per cent and emissions by 2 per cent, while also improving operational stability.
Digitalisation in cement manufacturing encompasses a suite of technologies, broadly termed as Industrial Internet of Things (IIoT), AI and machine learning, predictive analytics, cloud-based platforms, advanced process control and digital twins, each playing a role in optimising various stages of production from quarrying to despatch.
Grinding: The crucible of efficiency and cost
Of all the stages in cement production, grinding is among the most energy-intensive, historically consuming large amounts of electricity and representing a significant portion of plant operating costs. As a result, optimising grinding operations has become central to digital transformation strategies.
Modern digital systems are transforming grinding mills from mechanical workhorses into intelligent, interconnected assets. Sensors throughout the mill measure parameters such as mill load, vibration, mill speed, particle size distribution, and power consumption. This real-time data, fed into machine learning and advanced process control (APC) systems, can dynamically adjust operating conditions to maintain optimal throughput and energy usage.
For example, advanced grinding systems now predict inefficient conditions, such as impending mill overload, by continuously analysing acoustic and vibration signatures. The system can then proactively adjust clinker feed rates and grinding media distribution to sustain optimal conditions, reducing energy consumption and improving consistency.
Digital twins: Seeing grinding in the virtual world
One of the most transformative digital tools applied in cement grinding is the digital twin, which a real-time virtual replica of physical equipment and processes. By integrating sensor data and
process models, digital twins enable engineers to simulate process variations and run ‘what-if’
scenarios without disrupting actual production. These simulations support decisions on variables such as grinding media charge, mill speed and classifier settings, allowing optimisation of energy use and product fineness.
Digital twins have been used to optimise kilns and grinding circuits in plants worldwide, reducing unplanned downtime and allowing predictive maintenance to extend the life of expensive grinding assets.
Grinding media and grinding aids in a digital era
While digital technologies improve control and prediction, materials science innovations in grinding media and grinding aids have become equally crucial for achieving performance gains.
Grinding media, which comprise the balls or cylinders inside mills, directly influence the efficiency of clinker comminution. Traditionally composed of high-chrome cast iron or forged steel, grinding media account for nearly a quarter of global grinding media consumption by application, with efficiency improvements translating directly to lower energy intensity.
Recent advancements include ceramic and hybrid media that combine hardness and toughness to reduce wear and energy losses. For example, manufacturers such as Sanxin New Materials in China and Tosoh Corporation in Japan have developed sub-nano and zirconia media with exceptional wear resistance. Other innovations include smart media embedded with sensors to monitor wear, temperature, and impact forces in real time, enabling predictive maintenance and optimal media replacement scheduling. These digitally-enabled media solutions can increase grinding efficiency by as much as 15 per cent.
Complementing grinding media are grinding aids, which are chemical additives that improve mill throughput and reduce energy consumption by altering the surface properties of particles, trapping air, and preventing re-agglomeration. Technology leaders like SIKA AG and GCP Applied Technologies have invested in tailored grinding aids compatible with AI-driven dosing platforms that automatically adjust additive concentrations based on real-time mill conditions. Trials in South America reported throughput improvements nearing 19 per cent when integrating such digital assistive dosing with process control systems.
The integration of grinding media data and digital dosing of grinding aids moves the mill closer to a self-optimising system, where AI not only predicts media wear or energy losses but prescribes optimal interventions through automated dosing and operational adjustments.
Global case studies in digital adoption
Several cement companies around the world exemplify digital transformation in practice.
Heidelberg Materials has deployed digital twin technologies across global plants, achieving up to 15 per cent increases in production efficiency and 20 per cent reductions in energy consumption by leveraging real-time analytics and predictive algorithms.
Holcim’s Siggenthal plant in Switzerland piloted AI controllers that autonomously adjusted kiln operations, boosting throughput while reducing specific energy consumption and emissions.
Cemex, through its AI and predictive maintenance initiatives, improved kiln availability and reduced maintenance costs by predicting failures before they occurred. Global efforts also include AI process optimisation initiatives to reduce energy consumption and environmental impact.
Challenges and the road ahead
Despite these advances, digitalisation in cement grinding faces challenges. Legacy equipment may lack sensor readiness, requiring retrofits and edge-cloud connectivity upgrades. Data governance and integration across plants and systems remains a barrier for many mid-tier producers. Yet, digital transformation statistics show momentum: more than half of cement companies have implemented IoT sensors for equipment monitoring, and digital twin adoption is growing rapidly as part of broader Industry 4.0 strategies.
Furthermore, as digital systems mature, they increasingly support sustainability goals: reduced energy use, optimised media consumption and lower greenhouse gas emissions. By embedding intelligence into grinding circuits and material inputs like grinding aids, cement manufacturers can strike a balance between efficiency and environmental stewardship.
Conclusion
Digitalisation is not merely an add-on to cement manufacturing. It is reshaping the competitive and sustainability landscape of an industry often perceived as inertia-bound. With grinding representing a nexus of energy intensity and cost, digital technologies from sensor networks and predictive analytics to digital twins offer new levers of control. When paired with innovations in grinding media and grinding aids, particularly those with embedded digital capabilities, plants can achieve unprecedented gains in efficiency, predictability and performance.
For global cement producers aiming to reduce costs and carbon footprints simultaneously, the future belongs to those who harness digital intelligence not just to monitor operations, but to optimise and evolve them continuously.
About the author:
Professor Procyon Mukherjee, ex-CPO Lafarge-Holcim India, ex-President Hindalco, ex-VP Supply Chain Novelis Europe, has been an industry leader in logistics, procurement, operations and supply chain management. His career spans 38 years starting from Philips, Alcan Inc (Indian Aluminum Company), Hindalco, Novelis and Holcim. He authored the book, ‘The Search for Value in Supply Chains’. He serves now as Visiting Professor in SP Jain Global, SIOM and as the Adjunct Professor at SBUP. He advises leading Global Firms including Consulting firms on SCM and Industrial Leadership and is a subject matter expert in aluminum and cement. An Alumnus of IIM Calcutta and Jadavpur University, he has completed the LH Senior Leadership Programme at IVEY Academy at Western University, Canada.
Refractory demands in our kiln have changed
Digital supply chain visibility is critical
Redefining Efficiency with Digitalisation
Cement Additives for Improved Grinding Efficiency
Digital Pathways for Sustainable Manufacturing
Refractory demands in our kiln have changed
Digital supply chain visibility is critical
Redefining Efficiency with Digitalisation
Cement Additives for Improved Grinding Efficiency
Digital Pathways for Sustainable Manufacturing
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