Concrete
Strength of a refractory material changes with temperature
Published
2 years agoon
By
admin
Tushar Khandhadia, General Manager – Production, Udaipur Cement Works Limited, takes us through the workings of refractories at a cement plant while giving important inputs about their maintenance.
Tell us about the types of refractoriesused in your organisation and their respective purposes.
In our organisation, various types of refractories are utilised to withstand the extreme conditions present in the production of cement. These refractories are chosen based on their properties and suitability for specific areas within the cement manufacturing process. Here are common types of refractories used in our plant and their respective purposes:
Alumina refractories: Alumina refractories, typically made from alumina (Al2O3), are used in the kiln and cooler areas of the cement plant due to their high refractoriness and resistance to alkalis and abrasion.
Magnesia (magnesite) refractories: Magnesia refractories, made from magnesite (MgO), are used in the burning zone of the rotary kiln where temperatures are extremely high. They exhibit excellent resistance to alkaline materials present in the cement process.
Silica refractories: Silica refractories, composed primarily of silica (SiO2), are utilised in the lower temperature zones of the cement kiln and preheater. They provide good resistance to acidic materials and thermal shock.
Basic refractories (such as magnesia-chrome and magnesia-spinel): Basic refractories containing magnesia or chrome are employed in cement plant areas where the conditions are more basic (alkaline). They are used in high-temperature zones and exhibit resistance to alkaline materials.
Chrome-magnesia refractories: Chrome-magnesia refractories, combining chrome and magnesia, are utilised in areas exposed to higher temperatures and wear, such as cement kiln burners and coolers.
Insulating refractories (lightweight insulating bricks, ceramic fibres): Insulating refractories are used to reduce heat loss and improve energy efficiency in cement plant applications. They are employed in areas like the preheater and cooler to minimise thermal conductivity and conserve energy.
High-alumina refractories: High-alumina refractories, containing high levels of alumina, are used in areas where both high refractoriness and resistance to abrasive materials are needed, such as the transition zone of the cement kiln.
What are the key materials used in building a refractory lining to the kiln?
The key materials used during the refractory lining in a kiln include:
Alumina bricks – purpose: Alumina bricks, made of alumina (aluminum oxide), are crucial for high-temperature resistance in critical areas of the kiln, providing durability and thermal stability.
Basic bricks – purpose: Basic bricks, typically made from materials like magnesia or dolomite, are resistant to alkaline conditions. They are used in high-temperature zones of the kiln.
Key bricks – purpose: Key bricks are special bricks used to secure the refractory lining with closing each ring, providing stability and structural integrity to the overall refractory structure within the kiln.
Ceramic fibbers – purpose: Ceramic fibres, made from alumina-silicate or other compositions, serve as effective insulation in the refractory lining. They reduce heat loss and improve energy efficiency in the kiln.
Sodium silicate and mortar solution – purpose: Used as a binder or for coating refractory materials to enhance their properties and adhesion, improving the integrity and longevity of the refractory lining. The physical and chemical properties of mortars must be matched to the type of brick being installed.
Shim – purpose: Shims are thin, flat pieces of material used to fill small gaps or adjust the alignment of refractory bricks, ensuring a snug fit and proper construction of the refractory lining.
What are the key properties of a refractory that support the cement making process?
The key properties of a refractory that support the cement making process are:
- High refractoriness
- Chemical inertness and resistance
- Thermal shock resistance
- Abrasion and erosion resistance
- Porosity and permeability
- Mechanical strength and load-bearing capacity
- Resistance to alkali and alkali vapours
- Chemical composition and raw materials selection
Tell us more about the porosity and permeability of the refractory.
The porosity and permeability of refractories are important properties that influence their performance in high-temperature applications such as furnaces, kilns and other thermal processing equipment.
- Porosity in refractories refers to the volume percentage of voids or pores within the material. It affects the refractory’s ability to retain and release gases, liquids and thermal conductivity. Low porosity is generally desirable in refractories as it leads to better thermal and chemical resistance. High porosity can result in reduced strength and thermal conductivity.
- Permeability is the ability of a refractory material to allow the flow of gases or liquids through its pores or interconnected voids. It is influenced by the porosity and the connectivity of the pores within the material. Permeability is an essential property for refractories used in applications where gases or liquids need to flow through the refractory material, such as cement kiln.
The specific values of porosity and permeability for refractories can vary widely depending on the type of refractory material, its composition, manufacturing process, and intended application. Refractories can range from low-porosity dense materials to highly porous insulating materials, each designed for specific use cases.
What is the maximum temperature that a refractory can withhold? How does its strength differ from ambient temperature to high temperature?
Name of the spinel group mineral Composition Melting point. (oC)
Spinel MgAl2O4 (MgO. Al2O3) 2135
Hercynite FeAl2O4 (FeO. Al2O3) 1780
Picro-chromite MgCr2O4 (MgO. Cr2O3) 2350
Chromite FeCr2O4 (FeO. Cr2O3) 2075
Magnetite Fe3O4 (FeO.Fe2O3) 1591
- silica bricks: 1400-1500°C
- fireclay bricks: 1100-1400°C
- high-alumina bricks: 1400-1700°C
- magnesia/ doloma bricks: 1500-1800°C
The maximum temperature that a refractory can withstand is known as its refractoriness. Refractories are generally categorised into three main types based on their refractoriness:
- Fireclay refractories: These have a refractoriness of around 1600oC to 1800oC.
- High alumina refractories: They have a refractoriness ranging from about 1750oC to 1900oC.
- Basic refractories: Spinel, Hercynite, Chromite etc. They have a refractoriness ranging from about 1750oC to 2100oC.
- Silica refractories: Silica refractories have a refractoriness of approximately 1800oC to 1950oC
Strength of a refractory material changes with temperature. At ambient or room temperature, refractories generally have their highest mechanical strength. As the temperature increases, the strength of the refractory typically decreases due to thermal expansion, softening and possible chemical reactions. The rate and extent of this strength reduction vary based on the type of refractory and its composition.
Tell us about the installation and operating process of refractories in the kiln.
Here’s an overview of the installation and operating process of refractories in a cement kiln:
Installation of refractories
- Preparation and inspection: Before installation, inspect the kiln’s interior to assess the condition of the existing refractory lining and identify any areas requiring repair or replacement. After selection of area clean the kiln shell area properly for fixing of bricks lining.
- Material selection: Choose appropriate refractory materials based on the specific zone of the kiln (e.g., calcination, upper transition, burning zone, lower transition and cooling). Different
- zones have varying temperature and chemical exposure requirements.
- Laying the refractory bricks: Use skilled masons or technicians to install the refractories according to the design specifications. Refractory materials are laid in specific patterns to create the desired lining by using brick lining machine or kiln jack. Using of mortar are optional depend on past experience and kiln shell condition
- Sim fastening and inspection: To tighten each ring of bricks lining use sim fastening specially in alumina bricks lining, tab each line with wooden or rubber hammer for checking tightness of ring if it is found loose reapply sim.
- Drying and curing: Allow the refractory lining to dry and cure according to the manufacturer’s guidelines. Controlled heating and drying help to prevent cracking and ensure proper bonding.
Operating Process
• Start-up and warm-up: Gradually heat up the kiln to the desired operating temperature to avoid thermal shock to the refractories. The start-up process involves slowly increasing the temperature over few hours or days for drying out the refractories and ring tighten after expansion of the bricks.
• Monitoring and Control: Use advanced monitoring (shell scanner) systems to measure and controls the temperature and other critical parameters. Monitoring helps optimise the firing process and prevent damage to the refractory lining.
• Refractory maintenance: Regularly inspect the refractory lining through shell temperature for signs of wear, erosion, cracks or hot spots. Start a proactive maintenance programme to repair or replace damaged refractory sections promptly.
• Refractory repair and replacement: When necessary, schedule shut-downs for refractory repair or replacement. Use skilled personnel to execute repairs and ensure the new refractories are properly anchored and cured before restarting the kiln.
• Cool-down: After the cement production process or maintenance activities, gradually cool down the kiln to avoid thermal stress on the refractories. Controlled cooling is essential for prolonging the refractory life.
• Quality Control: Regularly assess the performance of the refractories, analyse their wear patterns, and gather data to optimise the refractory selection for future installations.
Efficient installation and careful operation of refractories in a cement kiln are vital for achieving optimal productivity, reducing downtime and extending the service life of the refractory lining. Properly maintained and installed refractories contribute to cost-effective and sustainable cement production.
What are the standards set for refractories in a cement kiln?
There are two standard shapes used in kiln for straight portion, viz. ISO shape and VDZ shape. ISO (International Organisation for Standardisation) is as per international standard and VDZ (Verein Deutsche Zementwerke) is German standard. In case of ISO brick, cold face thickness is fixed, i.e., 103 mm and in case of VDZ shape it is less than 80 mm. The average thickness for VDZ shape is fixed for all shape, i.e., 71.5 mm, that means weight for both combination shape used during lining will be same. But in case of ISO shape weight of the two types of bricks used in combination are different.
VDZ shape is prefixed with B, whereas ISO series bricks are prefixed with 3K. The last two digit represents the height of the brick or thickness of the lining in cm. e.g., B 322 means it is VDZ series brick (as B is prefix) and is having lining thickness 22 cm.
In case of basic bricks, VDZ shape is used in most of the kilns except for large kiln diameter like 6 M, where ISO shape is used for basic brick also. In case of alumina bricks, ISO shape is used in most of the kilns. However, up to 5 M dia kiln it is better to use VDZ shape for the entire length because of the following advantages:
- Better contact / arch effect with kiln shell for VDZ shape.
- Weight of VDZ shape brick is lower, hence easier to handle.
- Average thickness of VDZ shape is ~20 – 25 mm lower than ISO shape.
- Uniform compactness is achieved during green pressing of VDZ shape.
- Uniform burning condition in case of VDZ shape during manufacturing.
- Easier to install and minimum handing damage in case of VDZ shape.
The thickness of the lining is typical function of the kiln diameter. Recommended thickness of brick linings according to the shell diameter of rotary furnaces:
Kiln diameter Refractory thickness
up to 3.6 m 180 mm
3.6 to 4.2 m 200 mm
4.2 to 5.2 m 220 mm
Above 5.2 m 250 mm
The above table indicates the length of different zone and kiln environment at corresponding area.
• Discharge zone: This is also known as cooling zone. The length of discharge zone depends on the position of burner pipe tip. Generally, it is 0 -1 times of kiln diameter i.e., for 4-meter dia. kiln, the length of this zone would be approximately 4 m. There will not be coating in this area. The brick used for this area should have high abrasion resistance. High alumina brick or spinel bonded magnesia brick is suitable for this area.
• Lower transition zone: The area in between cooling and burning zone is called lower transition zone. The length varies from 1 – 2 times of kiln diameter. In this zone the coating formation on brick is unstable. Hence the brick used in this zone should have high resistance against spalling, abrasion, and chemical corrosion. Spinel bonded or hercynite bonded magnesia brick can be considered suitable for this zone. In case of very severe kiln condition (high redox condition and high chemical corrosion) zirconia-based magnesia brick may be considered.
• Burning zone: The most important area of kiln where stable coating is observed is called burning or sintering zone. The length of this zone varies from three times the kiln diameter up to five times the kiln diameter. The refractory used for this area should have high temperature resistance and high chemical corrosion resistance. In low the alkali environment mag-chrome brick is apt, but in high alkali environment hercynite bonded or spinel bonded magnesia brick is suitable.
• Upper transition zone: The area in between burning and calcining zone, where unstable coating is formed, is denoted as upper transition zone. The length of this zone can be 2-3 times of kiln diameter. Due to instability of coating in this zone, bricks having high thermal shock resistance should be used. Hercynite bonded or spinel bonded magnesia bricks are suitable.
• Calcining zone: The area between upper transition and kiln inlet is named as calcining zone. When the calcined raw meal enters the kiln, it is usually calcined up to 92-96 per cent. Rest of the calcination of kiln feed takes place in this area. The length of this zone is 7-8 times of kiln diameter. Generally, no coating is found in this area. The brick used for this area should have high spalling resistance and resistance against alkali sulfates and chlorides. Clog shape high alumina brick having 60 and 50 per cent alumina is suitable for this area.
While using high alkali loading in kiln, phosphate bonded alkali resistant bricks are
also recommended.
Concrete
Smart Logistics is Rewriting Rules of Competition
Published
32 minutes agoon
April 13, 2026By
admin
Professor Procyon Mukherjee explains how end-to-end logistics, driven by network redesign, digital control towers and multimodal integration, is emerging as the primary lever of competitive advantage in the cement industry.
On the surface, cement is a commodity business—heavy, low-margin, and seemingly undifferentiated. But beneath that simplicity lies one of the most complex logistics challenges in global industry. Moving raw materials, clinker, and finished cement across vast geographies—often under volatile demand and razor-thin margins—means that logistics is not just a support function. It is the strategy.
In many markets, logistics accounts for up to 30 per cent of total cost. The implication is stark: companies that redesign their end-to-end logistics—from inbound flows to last-mile delivery—can fundamentally alter their competitive position. Across India, Europe, and China, leading cement players are doing exactly that. Their playbook offers a powerful lesson: the future of cement lies not in production efficiency alone, but in logistics intelligence.
From plant-centric to market-centric networks
For decades, cement companies designed their networks around limestone availability. Plants were built near quarries, and finished cement was transported long distances to markets. This model, while logical from a production standpoint, created massive outbound logistics costs.
Indian cement companies have begun to challenge this logic. The shift: decoupling clinker production from cement grinding. Clinker plants remain near limestone reserves, but grinding units are increasingly located close to consumption centers.
Case in point: India’s split-network model
Leading players such as UltraTech and Shree Cement have invested heavily in grinding units near urban demand clusters. The result:
• Lead distances reduced from 400–500 km to nearly 100–150 km
• Freight costs per ton significantly lowered
• Faster response to regional demand spikes
The insight is simple but powerful: move semi-finished goods (clinker), not finished goods (cement).
European players took a different but equally effective route.
Case: Port-centric logistics in Europe
Companies like Holcim and Cemex use
coastal shipping to move clinker and bulk
cement to strategically located port terminals. These terminals act as processing and distribution hubs. This model delivers:
• Lower inland transportation costs
• Flexibility to serve multiple markets
• Reduced carbon footprint through maritime transport
China, operating at an entirely different scale, has optimised networks through density and integration.
Case: China’s regional cluster model
Large producers coordinate production and distribution across tightly integrated regional
clusters, supported by rail and inland waterways. Centralised planning systems dynamically allocate supply across markets.
The common thread across all three regions is unmistakable: network design has shifted from production efficiency to market responsiveness.
The overlooked lever: Inbound logistics
While outbound logistics gets most of the attention, inbound flows—limestone, coal, gypsum, and alternative fuels—are equally critical. Yet, many companies still treat inbound logistics as a static function. In almost all firms inbound is still separate from outbound organisationally. Leaders are taking a different approach.
Case: Conveyor and short-haul rail systems (India and China)
Instead of relying on trucks, companies are investing in conveyor belts and dedicated rail links between quarries and plants. This reduces:
• Transportation cost variability
• Fuel dependency
• Operational disruptions
Case: Alternative fuel logistics (Europe)
European cement companies are aggressively using biomass and waste-derived fuels. This requires reverse logistics networks to collect, process, and transport waste materials. The payoff:
• Lower fuel costs
• Reduced emissions
• Greater supply resilience
The emerging principle: inbound logistics is not just about cost—it is about securing continuity and flexibility in production.
Winning the last mile
If inbound logistics ensures production continuity, outbound logistics determines market success.
Cement demand is fragmented, unpredictable, and often time-sensitive. Construction sites require reliable, just-in-time delivery. Delays can halt projects, making service reliability a key differentiator.
Case: Direct-to-site delivery in India
Cement companies are increasingly bypassing traditional dealer networks for large customers, delivering directly to construction sites. This model:
• Reduces handling and damage
• Improves delivery predictability
• Strengthens customer relationships
Case: Ready-Mix Concrete (RMC) integration
The rise of RMC has transformed cement logistics into a service business. Cement is no longer just transported—it is integrated into time-sensitive delivery cycles. This requires:
• Tight coordination between batching plants and delivery trucks
• Real-time scheduling
• Minimal buffer times
The lesson: logistics is no longer about moving products—it is about delivering outcomes.
The digital backbone: Real-time data
Perhaps the most transformative shift in cement logistics is the adoption of real-time data systems. Historically, cement supply chains operated with limited visibility. Dispatch decisions were often reactive, based on static plans and delayed information. That is changing rapidly.
Case: Holcim India’s Transport Analytics Centre
Holcim has built a centralised system connecting tens of thousands of trucks across its network. The platform tracks:
• Vehicle location
• Route efficiency
• Driver behaviour
• Fuel consumption
This enables dynamic routing, improved safety, and lower emissions.
Case: Dalmia Cement’s smart fleet management
Dalmia uses GPS-enabled tracking and analytics to optimise fleet utilisation. Real-time insights allow:
• Faster dispatch decisions
• Reduced idle time
• Improved on-time delivery
Case: Integrated Transport Management Systems (global)
Leading companies are deploying end-to-end TMS platforms that connect:
• Plants
• Warehouses
• Transporters
• Customers
The impact:
• Significant reduction in delivery delays
• End-to-end visibility
• Better coordination across stakeholders
The shift is profound: from fragmented logistics operations to centralised, data-driven control towers.
Inventory: From buffers to flow
Inventory has traditionally been the safety net of cement supply chains. Companies maintained high stock levels at depots to manage demand uncertainty.
But this came at a cost:
• High working capital
• Storage inefficiencies
• Risk of obsolescence
Leaders are now rethinking this approach.
Case: IoT-enabled inventory management (India)
Companies like ACC have deployed sensors in silos and warehouses to monitor stock levels in real time. This enables:
• Continuous visibility
• Automated replenishment
• Reduced stockouts and excess inventory
Case: Predictive replenishment (Europe and China)
Using demand forecasting models, companies dynamically adjust inventory levels across their networks. The result:
• Lower inventory holding costs
• Improved service levels
• Faster response to demand fluctuations
The new model is clear: inventory is no longer a buffer—it is a flow variable optimised in real time.
Multimodal logistics: the cost advantage
Given cement’s low value-to-weight ratio, transportation mode selection is critical.
Case: Ambuja Cement’s captive port strategy (India)
Ambuja has invested in ports and ships to move bulk cement and clinker along India’s coastline.
Benefits include:
• Lower transportation cost per ton
• Reduced dependency on road transport
• Improved delivery reliability
Case: Inland waterways in Europe and China
Both regions extensively use rivers and canals for bulk transport, significantly reducing costs and emissions. The takeaway: cost leadership in cement increasingly depends on multimodal integration.
Sustainability as strategy
Logistics is also central to the cement industry’s decarbonisation efforts.
Case: LNG-powered trucks (India)
Companies are experimenting with cleaner fuels to reduce emissions in road transport.
Case: CO2 transport networks (Europe)
As carbon capture technologies scale, logistics networks are being designed to transport captured CO2 for storage or reuse. Sustainability is no longer a compliance issue—it is becoming a source of competitive advantage.
Conclusion
In an industry where margins often hover in the single digits, logistics is no longer a back-end efficiency lever—it is the profit engine. With logistics accounting for 20 per cent to 30 per cent of total cement costs, even a 5 per cent to 10 per cent optimisation can expand EBITDA margins by 150–300 basis points—a swing large enough to redefine market leadership. Companies that have invested in network redesign, multimodal transport, and real-time control towers are already seeing double-digit reductions in freight costs and 20 per cent to 30 per cent improvements in delivery reliability. The implication is clear: in cement, the next wave of competitive advantage will not be mined from quarries—it will be engineered through smarter, faster, and more intelligent logistics networks.
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.
Concrete
Reimagining Logistics: Spatial AI and Digital Twins
Published
1 hour agoon
April 13, 2026By
admin
Digital twins and spatial AI are transforming cement logistics by enabling real-time visibility, predictive decision-making, and smarter multi-modal operations across the supply chain. Dijam Panigrahi highlights how immersive AR/VR training is bridging workforce skill gaps, helping companies build faster, more efficient, and future-ready logistics systems.
As India accelerates infrastructure investment under flagship programs such as PM GatiShakti and the National Infrastructure Pipeline, the pressure on cement manufacturers to deliver reliably, efficiently, and cost-effectively has never been greater. Yet for all the modernisation that has taken place on the production side, the end-to-end logistics chain, from clinker dispatch to the last-mile delivery of bagged cement to construction sites, remains a domain riddled with inefficiencies, opacity and manual decision-making.
The good news is that a new generation of spatial computing technologies is now mature enough to transform this reality. Digital twins, spatial artificial intelligence (AI) and immersive augmented and virtual reality (AR/VR) training platforms are converging to offer cement producers something they have long sought: real-time visibility, autonomous decision-making at the operational edge, and a scalable solution to the persistent skills gap that hampers workforce performance.
Advancing logistics with digital twins
The cement supply chain is uniquely complex. A single integrated plant may manage limestone quarrying, kiln operations, grinding, packing and despatch simultaneously, with finished product flowing through rail, road, and waterway networks to reach hundreds of regional depots and distribution points. Coordinating this network using spreadsheets, siloed ERP data, and phone calls is not merely inefficient; it is a structural liability in a competitive market where delivery reliability is a key differentiator.
Digital twin technology offers a way out. A cement logistics digital twin is a continuously updated, three-dimensional virtual replica of the entire supply chain, from the truck loading bays at the plant to the inventory levels at district depots. By ingesting data from IoT sensors on conveyor belts and packing machines, GPS trackers on road and rail fleets, weighbridge records, and weather feeds, the digital twin provides planners with a single, authoritative picture of where every ton of cement is, in real time.
The value, however, goes well beyond visibility. Because the digital twin mirrors the physical system in dynamic detail, it can run scenario simulations before decisions are executed. If a primary rail corridor is disrupted, logistics managers can model alternative routing options, shifting volumes to road or coastal shipping, and assess the cost and time implications within minutes rather than days. If a packing line at the plant is running below capacity, the twin can automatically recalculate dispatch schedules downstream and alert depot managers to adjust receiving resources accordingly.
For cement companies operating multi-plant networks across geographies as varied as Rajasthan and the North-East, this kind of end-to-end situational awareness is transformative. It collapses information latency from hours to seconds, enables proactive rather than reactive logistics management, and creates the data foundation upon which AI-driven decision-making can be built. Companies that have deployed logistics digital twins in comparable heavy-industry contexts have reported reductions in transit time variability of up to 20 per cent and meaningful decreases in demurrage and detention costs, savings that flow directly to the bottom line.
Smart logistics operations
A digital twin is only as powerful as the intelligence layer that sits on top of it. This is where Spatial AI becomes the critical differentiator for cement logistics.
Traditional logistics management systems are reactive. They record what has happened and flag exceptions after the fact. Spatial AI systems, by contrast, are proactive. They continuously analyse the state of the logistics network as represented in the digital twin, identify emerging bottlenecks before they crystallise into delays, and recommend corrective actions.
At the plant gate, AI-powered visual inspection systems using spatial depth-sensing cameras can assess truck conditions, verify load integrity and confirm seal tamper status in seconds, replacing the manual checks that currently slow throughput. At the depot level, Spatial AI can monitor stock drawdown rates in real time, cross-reference them against pending customer orders and inbound shipment ETAs, and automatically trigger replenishment orders when safety thresholds are approached. In transit, AI systems processing GPS and telematics data can detect anomalous vehicle behaviour, including extended stops, route deviations, speed irregularities and alert fleet managers instantly.
Perhaps most significantly for Indian cement logistics, Spatial AI can optimise the complex multi-modal routing decisions that are central to competitive cost management. Given the variability in road quality, seasonal accessibility, rail rake availability, and regional demand patterns across India’s vast geography, the combinatorial complexity of routing optimisation is beyond human planners working with conventional tools. AI systems can process this complexity continuously and adapt routing recommendations as conditions change, reducing empty running, improving vehicle utilisation and cutting fuel costs.
The agentic dimension of modern AI is particularly relevant here. Agentic AI systems do not merely analyse and recommend; they act. In a cement logistics context, this means an AI system that can, within pre-authorised boundaries, directly communicate revised dispatch instructions to plant teams, update booking confirmations with freight forwarders and reallocate available rail rakes across plant locations, all without waiting for a human to process a recommendation and make a call. For logistics executives, this represents a genuine shift from managing a workforce to setting the rules of engagement and reviewing outcomes. The operational tempo achievable with agentic AI simply cannot be matched by human-in-the-loop systems working at the pace of emails and phone calls.
Bridging the skills gap
Technology investments in digital twins and spatial AI will deliver diminishing returns if the human workforce cannot operate effectively within the new systems they create. This is a challenge that India’s cement industry cannot afford to underestimate. The sector relies on a large, geographically dispersed workforce, including truck drivers, depot managers, despatch supervisors, fleet maintenance technicians, many of whom have been trained on paper-based processes and manual workflows. Retraining this workforce for a digitised, AI-augmented environment is a substantial undertaking, and conventional classroom or on-the-job training methods are poorly suited to the scale and pace required.
Immersive AR and VR training platforms offer a fundamentally different approach. By creating photorealistic, interactive simulations of logistics environments, such as a plant dispatch bay, a depot yard, the interior of a cement truck cab, allow workers to practice complex procedures and decision-making scenarios in a safe, consequence-free virtual environment. A depot manager can work through a simulated rail rake delay scenario, making decisions about customer allocation and communication
without the pressure of real orders being affected. A truck driver can practice the correct procedure for securing a load of bagged cement without the risk of a road incident.
The learning science case for immersive training is compelling. Studies consistently show that experiential, simulation-based learning produces faster skill acquisition and higher retention rates than didactic instruction, with some research indicating retention rates three to four times higher for VR-based training compared to classroom methods. For complex operational procedures where muscle memory and situational awareness matter as much as conceptual knowledge, the advantage of immersive simulation is even more pronounced.
Today’s leading cloud-based spatial computing platforms enable high-fidelity AR and VR training experiences to be delivered on standard mobile devices, removing the hardware barrier that has historically made immersive training impractical for large, distributed workforces. This is particularly relevant for cement companies with depots and logistics operations in tier-two and tier-three locations, where access to specialised training hardware cannot be assumed.
The integration of AR into live operations also creates ongoing learning opportunities beyond formal training programs. As an example, maintenance technicians equipped with AR overlays can receive step-by-step guidance for equipment procedures directly in their field of view, reducing error rates and service times for critical plant and fleet assets.
New strategy, new horizons
India’s cement industry is entering a period of intensifying competition, rising logistics costs, and demanding customers with shrinking tolerance for delivery variability. The companies that will lead over the next decade will be those that treat logistics not as a cost centre to be minimised, but as a strategic capability to be built.
Digital twins, spatial AI and immersive AR/VR training are not distant future technologies, they are deployable today on infrastructure that Indian cement companies already operate. The question is not whether to adopt them, but how quickly to do so and where to begin.
About the author:
Dijam Panigrahi is Co-Founder and COO of GridRaster Inc., a provider of cloud-based spatial computing platforms that power high-quality digital twin and immersive AR/VR experiences on mobile devices for enterprises. GridRaster’s technology is deployed across manufacturing, logistics and infrastructure sectors globally.
The right packaging does more than protect a product; it protects reputation, efficiency and brand value. Marta Bortolotti, Division Manager Consumables, Haver & Boecker, discusses smart packaging solutions that are becoming a strategic priority for manufacturers.
When it comes to product packaging, every element, from design and materials to compatibility with machinery, product and closure type, plays a vital role in achieving both efficient function and a positive brand image. To maintain a competitive edge, producers must carefully evaluate their packaging choices.
Partner with an expert
Unlike providers who specialise solely in packaging, full-service manufacturers can combine their expertise in packing equipment and product analysis. They can provide bag recommendations that integrate seamlessly with machinery. This approach enhances efficiency, expedites the filling process and ensures operational flow — all while saving resources, preserving product and strengthening brand perception.
A full-service approach tackles common issues like bag leaks, poor sealing or inefficiencies in bag performance. By leveraging detailed testing processes, such as bag volume checks and valve inspections, some manufacturers ensure the bag material and design are tailored to each packing line and product. This precision minimises production disruptions, optimises workflow and delivers packaging that enhances brand visibility and market impact.
Analyse your operational needs
Some manufacturers conceptualise the full-service philosophy as a practical framework that ensures bags, equipment and products work as a cohesive system. By aligning all three pillars, they can create solutions that reduce waste, save resources, improve operational efficiency and maximise output to achieve the perfect flow.
To begin, an expert will analyse the product to define the ideal machine technology and design a packaging solution that fits seamlessly into the operation’s preexisting process. This holistic approach ensures each packing facility can tackle even the most challenging requirements with precision and efficiency. Whether an operation is making a switch from open-mouth to valve-bag equipment and wants to ensure it goes smoothly or is simply looking for inefficiencies with their current packing line, analysing your bags should be a part of the equation.
Test and fine-tune your production line
The process begins with consultations and testing to gain a full understanding of the facility’s products and systems. The manufacturer’s engineers then create a custom bag report and fine-tune designs after thorough testing with the machinery. Finally, look for a manufacturer that can manage the entire supply chain, from bag testing to supply, ensuring a smooth and hassle-free experience. Some manufacturers also provide bag optimisation plans focused solely on the performance of existing bags to ensure they align with the demands of the production line. Through analysis, these manufacturers identify areas for improvement, offering specific recommendations to enhance bag materials, structure and compatibility. This method not only increases productivity and efficiency but also ensures cost-effectiveness and reliability by minimising downtime, reducing waste, optimising resource use and delivering consistent results across all operations.
A bag that reflects your brand
More than just a functional component, a bag serves as a powerful branding tool and a visual business card for each company. While some companies work with multiple providers for packaging, partnering with a single OEM expert, who understands the product, equipment, and production goals, provides unbeatable efficiency and peace of mind. With an integrated approach, every bag becomes a powerful asset for the brand and business.
About the author:
Marta Bortolotti, Division Manager , Consumables, Haver & Boeckers a driven packaging solutions leader focused on consumables, helping businesses achieve efficient operations, consistent quality, and long-term competitiveness through continuous learning and innovation.
Smart Logistics is Rewriting Rules of Competition
Reimagining Logistics: Spatial AI and Digital Twins
Seamless Packaging Means Elevated Branding
Beyond Despatch: Building a Strategic Supply Chain Process
Ultra Concrete Age
Smart Logistics is Rewriting Rules of Competition
Reimagining Logistics: Spatial AI and Digital Twins
Seamless Packaging Means Elevated Branding
Beyond Despatch: Building a Strategic Supply Chain Process

