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Logistics Untapped potential

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There are many elements that can make "Make-in-India" thrive. A sound industrial policy is one of them, and logistics is certainly another. Right now, logistics costs in India are 13-14 per cent! How it can be brought down to 10 per cent or even below? ICR takes a look.

Logistics-moving goods and connecting producers with consumers-is a critical part of the modern economy. India’s logistics sector is highly defragmented and the aim is to reduce the logistics cost from the present 14 per cent of GDP to less than 10 per cent by 2022, according to an update from the Department of Commerce. India’s logistics sector is very complex with more than 20 government agencies, 40 partnering government agencies (PGAs), 37 export promotion councils, 500 certifications, 10,000 commodities, and 160 billion market size. It also involves 12 million employment base, 200 shipping agencies, 36 logistic services, 129 ICDs, 168 CFSs, 50 IT ecosystems and banks and insurance agencies. Further, 81 authorities and 500 certificates are required for EXIM.

India has been grappling with high logistics costs of 16-18 percent to start with making exports uncompetitive vis-a-vis China, which has lower logistic costs of 8-10 per cent, in the US and Europe it is 8-9 per cent while in Japan it is 11 per cent.

Completing the dedicated freight corridor (DFC) project will free up some of the existing railway network for passenger trains. As Procycon Mukherjee points out in his article, the existing rail network has been designed to move passengers and not freight. Therefore, it is need based to have such a kind of project DFC. Appropriate technology will be used to enable Indian railways to regain its market share of freight transport by creating additional capacity and guaranteeing efficient, reliable, safe and cheaper options for mobility to its users. This is one step in the direction of reducing logistic cost.

DFCs: Regaining market share
Currently, the Indian Railways has lost a significant portion of its goods business to the road sector and has hoped that it would be able regain market share once DFC is operational. Some of the positives of DFC, Indian Railways will run freight train at the maximum speed of 100 km/per hour against the current maximum speed of 75 kmph on tracks. The average speed of freight trains will also be increased from existing speed of 26 kmph on Indian Railways lines to 70 kmph on DFC.

The Dedicated Freight Corridor Corporation of India Limited (DFCCIL) is a public sector undertaking corporation run by the Government of India’s Ministry of Railways to undertake planning, development, and mobilisation of financial resources and construction, maintenance and operation of the DFCs. While the western DFC will cover 1,504 km from Jawaharlal Nehru Port Trust near Navi Mumbai to Dadri in Uttar Pradesh through Vadodara-Ahmedabad-Palanpur-Phulera-Rewari, the Eastern DFC covers 1,856 km from Ludhiana in Punjab to Dankuni, near Kolkata in West Bengal, and will traverse the states of Haryana, Uttar Pradesh, Bihar and Jharkhand. The Railways plan to complete more than 60-70 per cent of the work in the two corridors this financial year and make them fully operational by 2021.

The three new DFCs will cover 5,769 km. The preliminary engineering and traffic system study of these corridors has already been completed. After the cabinet approval, DFCCIL-a special purpose vehicle set up in 2006 under the railways ministry?will undertake a detailed project planning including plans for land acquisition. While the East-West Corridor (2,328km) will be built between Kolkata and Mumbai, the North-South Corridor (2,327 km) is planned between Delhi and Chennai and the East Coast Corridor (1,114 km) between Kharagpur and Vijaywada.

Inland waterways: Untapped potential
India is blessed with 7,551 km of coastline and about 14,500 km of navigable inland waterways. Yet this sector has remained neglected despite universal acceptance that transportation through waterways, both coastal and inland, is fuel efficient, environment friendly and more economical than rail and road. Of the navigable inland waterways, 4,503 km are national waterways, the development and maintenance of which is the responsibility of the Indian government and the remaining portion is with state governments.

Using waterways for transporting people and goods is nothing new for India. Until about 100 years ago, the Ganga River was a busy waterway that was used for the movement of commodities such as tea, jute, and spices. But with the coming of the railways, this watercourse fell into disuse. At present, according to a World Bank report, India’s freight movement traverses mainly on roads (65 per cent). Railways come next (27 per cent); waterways account for just (0.5 per cent) of the movement. The freight movement on waterways across countries is also much higher in the West and China than in India: In the US, it’s about 8.3 per cent; in Europe 7 per cent; and in China it is 8.7 per cent. There are several reasons why the Centre is so enthusiastic about the waterways project. According to the World Bank, which is financing the National Waterway Project, the cost to transport one tonne of freight over one km for highways is Rs 2.28. It is Rs 1.41 for railways and Rs 1.19 for waterways. Second, its greener means less polluting.

"As per RITES Report of 2014 on "Integrated National Waterways Transportation Grid", one litre of fuel moves 24 tonne km by road, 95 tonne km on rail and 215 tonne km on inland water transport. Third, ferrying goods via waterways is faster than on congested road and rail networks, which slows the movement of cargo, adding to uncertainties, and increasing the costs of trade. Fourth is the pollution cost of traffic bottlenecks.

While there are several positives of the waterways project, any infrastructure development will have environmental costs, and those must be taken into account while evaluating the benefits of the project. This is because while the main infrastructure [waterway] is naturally available in this case, it needs to be "trained, maintained and upgraded" to ensure that the movement of cargo carriers is possible.

One important aspect of this "training" a waterway is dredging, which is required to ensure that the required water depth is maintained everywhere for the goods carriers to pass.

India has six national waterways: the Allahabad-Haldia stretch of the Ganga river (running through Uttar Pradesh and West Bengal); the Dhubri-Sadiya stretch of the Brahmaputra (Assam); the Kottappuram-Kollam stretch of the West Coast canal along with the Udyogamandal and Champakkara canals (Kerala); the Kakinada-Puducherry stretch along with the designated stretches of the Godavari and Krishna rivers (Andhra Pradesh, Puducherry); the designated stretches of the East Coast canal, the Brahmani river and the Mahanadi delta (Odisha); and the Lakhipur-Bhanga stretch of the Barak river (southern Assam). Ships that can travel freely through sea and river channels were first freed from a few provisions of the Merchant Shipping Act in 2011. Incidentally Merchant Shipping Act regulates the movement of ships in the river and in sea. This relaxation is now being significantly expanded to cover more ships. The changes in the Act on river-sea vessels were aimed at reducing the costs of constructing and operating vessels to encourage coastal shipping, inland water transport and trade. It was also designed to encourage the upgradation of existing inland vessels for coastal operations.

A seamless integration of river-sea trade using coastal ships is expected to provide an alternative means of quick discharge and dispersal of cargo from mother ships docking at big ports and their onward movement by sea to various smaller ports along the coast as well as inland locations. As ships built under the river-sea vessel regulations require very little depth to dock, they can load and unload cargo at smaller ports, which is not possible for bigger ships.

The Sagarmala programme is an initiative by the Ministry of Shipping to promote port-led development in the country through harnessing India’s 7,500 km long coastline, 14,500 km of potentially navigable waterways and strategic location on key international maritime trade routes. Sagarmala’s vision can have a potentially transformative impact on India’s logistics competitiveness and the wider economy.

Road transport and hurdles
There has been a significant increase in the commercial vehicles on the road in the recent times. Increase in commercial vehicles is a reflection of increasing demand for the movement of goods. According to surveys by the Indian Foundation of Transport Research and Training, one in every three trucks in the country is overloaded and they are to blame for 50 per cent of road accidents. In 2011, overloaded trucks accounted for 20 per cent of road accidents and in 2013, around 38,370 people were killed because of these overloaded vehicles.

Most trucks are found overloaded by 25-50 per cent. Senior fellow and coordinator of the Indian Foundation of Transport Research and Training (IFTRT), SP Singh, said: "When a truck is overloaded by 10 per cent, it’s steering and brake control is reduced by 50 and 40 per cent, respectively. Overloading also reduces the productive life of the road by 80 per cent and the productive life of the truck by 30 per cent."

But small-time operators and middlemen who run the majority of the country’s trucks consider overloading a necessary evil. Part of the problem is the industry’s skewed ownership pattern that makes accountability difficult. The problem lay in the lack of implementation of the Motor Vehicles Act. As an example, Singh mentioned the over 260 computerised weighbridges which has not stopped trucks in the capital from getting overloaded.

Around 5,000 cargo operators control the freight movement and only in about 2-3 per cent of the cases do customers access the truck owners directly to book for their goods. S Sriram, the professor of Transport Economics at Mumbai University, attributed the ownership structure to low capital requirements, easily available truck driving licenses, and easy availability of freight. He said the operators regularly loaded their trucks beyond the permissible axle load to maximise each vehicle’s earnings and the consignors of bulk commodities, like fertilisers, steel and cement, overloaded the vehicles in order to get freight service.

It’s a fact that when a truck is overloaded, the control on the steering and brake are reduced. In addition, frequent overloading reduces the productive life of the truck as well as the life of the road. In order to reduce the overloading of trucks and accidents, the Government has taken some major steps. For instance, a high penalty has been proposed in the Road Transport and Safety Bill for those who fail to comply with the new rules, with a suspension of permits for one month upon the first offense and a cancellation of permits if the offense is repeated. But these measurements are not enough to solve the problem as the truck owners or operators are still continuing to load their trucks beyond the permissible axle load to maximise each vehicle’s earnings.

Similarly, the consignors of bulk commodities like fertilizers, steel, and cement, overload the vehicles in order to save on the freight cost. Considering the trip economics, they are willing to pay higher prices to enter the city. In fact, there are a few states that have almost legalised overloading by issuing formal permits; illicit payments mostly clear the way for the vehicles. While there are weighing stations on the highways, it is surprising that many states or cities in India don’t even have check-posts to stop overloaded trucks from entering into the city or a dedicate area such as bridges. So, it appears that the main solution to overloading may lie in the proper implementation and enforcement of the Motor Vehicles Act.

In order to curb overloading, government or transport officers should more aggressively follow the Motor Vehicles Act and take strict actions against the rules violators. With such enforcement of the regulation, we can expect to see lower accidents, a lesser number of casualties and less damage on the Indian roads. All these will lead to higher productivity of the transport companies and that of the logistics sector.

Another problem which is often encountered by the truck operators is so called local truck owners not allowing "outside" truck operators to load consignment at few locations where local truck associations are very strong and classify themselves as local v/s outside. This results in the returning the truck empty after unloading the goods. It leads to waste of fuel and increase in transport cost. Turnaround time of truck is another pain point for easy truck movement. Normally at any factory gate you will find number of trucks parked in hundreds waiting to receive their load. Many factories call the trucks on ad-hoc basis, whereas very few have a system of first in and first out. Use of technology will only improve the scene.

After introduction of GST, crossing the border of a state has become little easy, yet at many places authorities still insist on paper documents creating stoppages to make quick money. Ministry can think of creating flying squads to arrest such harassments.

Rivigo experiment
India needs one million new truck drivers every year for the next 10 years to support the ecosystem and achieve our GDP growth aspiration. It is estimated that India will have 480 drivers for every 1,000 trucks on the road by 2022. The problem is not in the truck driver’s income or skill gaps but is deep-rooted in his terrible lifestyle away from his family. Long periods of absence leading to social disrespect, stigma and a risk perception of the job which makes their families push them to quit their job. Truck drivers play a vital role in freight transportation industry but unfortunately, drivers don’t get their fair share of economic growth. At Rivigo, a start up logistic company is working relentlessly to build a system that strives to improve their socio-economic conditions through couple of measures. It follows relay models that helps over 95 per cent of the pilots (drivers) get back home every day and spend quality time with their families. Rivigo has been an innovator and trend setter in logistics.

This supply demand gap has put pressure on the logistics companies. Every transporter or logistics company cites recruitment and retention of truck drivers as the biggest growth inhibitor for them. This has been also being highlighted in the draft National Logistics Policy council in their latest report.

Relay trucking model
The solution to curb the unprecedented shortage of truck drivers in India is clear -to make truck driving a regular day job using relay trucking. Relay trucking is an operating model innovation where drivers change over after every few hundred kilometres of driving through a network of change-over stops called "relay pit-stops" and then get rostered back to their home base to return to their families every single day. Relay Trucking is better service, more efficient and "Human."

Rivigo has been transforming the sector with their global-first driver relay model and cutting-edge technology to consistently provide unparalleled delivery times and reliability to clients. They are solving the challenges of the logistics industry using technology – be it problems like fuel analytics, route planning, human behaviour analysis or pure-drudgery elimination tasks like auto-alert systems and intelligent decision systems. Their technology obsession has resulted in simple, intuitive technology products gaining quick and easy adoption by the trucking ecosystem stakeholders.

Post demonetisation of high value currency, the logistics industry is grappling with cash shortage which has affected fleet operations across the nation and has crippled the Indian highways. Fleet owners have come to a bottleneck and cash shortage is threatening delivery of goods to consumers and businesses. 90 per cent of trucking spend and 40-50 per cent of the non-trucking logistics spend is rendered in cash.

About 85 per cent of the fleet owners who own less than five trucks spend hard cash towards diesel purchase, which comprises 45-50 per cent of the cost of trucking. Toll charges, which amount to 10-15 per cent of trucking cost and other overheads such as driver wages and vehicle maintenance, are also disbursed in cash. Only EMIs and replacement capex including tyre-related expenses are done to an extent through digital modes such as bank transfers and cheque payments. Overall, road logistics cash spend is estimated to be $100 to $110 billion or Rs 650,000 to 750,000 crore which would easily add up to 40 per cent of the cash in circulation in our economy. This is assuming the multiplier effect of currency that applies both ways, that is, the drivers who now get paid through digital modes will largely continue to spend through digital modes (also enabled by the current push towards cashless economy) Operations in the trucking sector can be made entirely cashless through the use of E-POD to get direct payment transfers from customers, automated bank transfers with the breakthrough same day settlement for brokers, integrated payment solutions with fuel companies for dealer payments and toll payments can be achieved through NHAI initiative on FASTag through RFID tags and wallet solutions. Also, fleet owners can remunerate truck driver wages, reimbursements and incentive payments directly through the Jandhan accounts.

Apart from digitisation and faster turnaround of trucks, cashless trucking economy will bring significant second order benefits. It will ensure less inefficacy owing to proper accounting of cash-related wastages (fuel, toll payments), eliminating instances of kerosene mixing by drivers and poor quality roads" usage to avoid toll cash, which also directly leads to the poor health of the fleet and poses a safety hazard. On the other hand, drivers will face less harassment from RTO and sales tax officers on highways and check posts. It will also improve road safety and adherence to regulations as it is a level playing field for non-compliant and compliant fleet owners, ending overloading and violation of safety norms. Truck drivers, loaders and all the large skill pools can be brought into the mainstream economy and will qualify for loans from financial institutions. Furthermore, it will also ensure employers and contractors pay minimum wages to workers in this sector. Lack of in-hand cash will reduce instances of substance abuse (including alcohol) and negatively impact the commercial sex worker trade on the highways which often leads to contraction of HIV amongst truck drivers.

There is short term pain to the sector due to lack of cash but in the long term, it can turn around the sector completely by making it efficient and safer and contribute significantly in making India cashless.

Now coming to cement specific, where subject is little different. In cement around 30 per cent cost is incurred on logistics, which is substantially higher than the general industry norms. There is enough scope to bring it down and companies like Shree Cement are setting an example. Cement plants need to make extensive use of technology to bring down the cost. In many places cement plant uses a mixed model of railways and road for dispatch of cement but there are few locations like Gagal (Burmana) where only road movement is possible since rail head is absent. Many of the hurdles explained above are quite pronounced in cement industry and need to be tackled on war footing. Taking advantage of present economic slowdown, there can’t be better time to undertake such initiatives.

– VIKAS DAMLE

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Concrete

Refractory demands in our kiln have changed

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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.

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Concrete

Digital supply chain visibility is critical

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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.

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Concrete

Cement Additives for Improved Grinding Efficiency

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Shreesh A Khadilkar discusses how advanced additive formulations allow customised, high-performance and niche cements—offering benefits while supporting blended cements and long-term cost and carbon reduction.

Cement additives are chemicals (inorganic and organic) added in small amounts (0.01 per cent to 0.2 per cent by weight) during cement grinding. Their main job? Reduce agglomeration, prevent pack-set, and keep the mill running smoother. Thus, these additions primarily improve, mill thru-puts, achieve lower clinker factor in blended cements PPC/PSC/PCC. Additionally, these additives improve concrete performance of cements or even for specific special premium cements with special USPs like lower setting times or for reduced water permeability in the resultant cement mortars and concrete (water repellent /permeation resistant cements), corrosion resistance etc.
The cement additives are materials which could be further differentiated as:

Grinding aids:
• Bottlenecks in cement grinding capacity, such materials can enhance throughputs
• Low specific electrical energy consumption during cement grinding
• Reduce “Pack set” problem and improve powder flowability

Quality improvers:
• Opportunity for further clinker factor reduction
• Solution for delayed cement setting or strength development issues at early or later ages.

Others: materials which are used for specific special cements with niche properties as discussed in the subsequent pages.
When cement additives are used as grinding aids or quality improvers, in general the additives reduce the inter-particle forces; reduce coating over grinding media and mill internals. Due to creation of like charges on cement particles, there is decreased agglomeration, much improved flowability, higher generation of fines better dispersion of particles in separator feed and reduction of mill filling level (decrease of residence time). However, in VRM grinding; actions need to be taken to have stable bed formation on the table.
It has been reported in literature and also substantiated by a number of detailed evaluations of different cement additive formulations in market, that the cement additive formulations are a combination of different chemical compounds, typically composed of:

  1. Accelerator/s for the hydration reaction of cements which are dependent on the acceleration effect desired in mortar compressive strengths at early or later ages, the choice of the materials is also dependent on clinker quality and blending components (flyash / slag) or a mix of both.
  2. Water reducer / workability / wet-ability enhancer, which would show impact on the resultant cement mortars and concrete. Some of the compounds (retarders) like polysaccharide derivatives, gluconates etc., show an initial retarding action towards hydration which result in reducing the water requirements for the cements thus act as water reducers, or it could be some appropriate polymeric molecules which show improved wet-ability and reduce water demand. These are selected based on the mineral component and type of cements (PPC/PSC /PCC).
  3. Grinding aids: Compounds that work as Grinding Aid i.e. which would enhance Mill thru-put on one hand as well as would increase the early strengths due to the higher fines generation/ or activation of cement components. These compounds could be like alkanol-amines such as TIPA, DEIPA, TEA etc. or could be compounds like glycols and other poly-ols, depending on whether it is OPC or PPC or PSC or PCC manufacture.

Mechanism of action — Step By Step—

  1. Reduce Agglomeration, Cement particles get electrostatically charged during grinding, stick together, form “flocs”, block mill efficiency, waste energy. Grinding aid molecules adsorb onto particle surfaces, neutralise charge, prevent re-agglomeration.
  2. Improve Powder Flowability, Adsorbed molecules create a lubricating layer, particles slide past each other easier, better mill throughput, less “dead zone” buildup.
    Also reduces caking on mill liners, diaphragms, and separator screens, less downtime for cleaning.
  3. Enhance Grinding Efficiency (Finer Product Faster), By preventing agglomeration, particles stay dispersed more surface area exposed to grinding media, finer grind achieved with same energy input, Or: same fineness achieved with less energy, huge savings.
    Example:
    • Without aid ? 3500 cm²/g Blaine needs 40 kWh/ton
    • With use of optimum grinding aid same fineness at 32 kWh/ton 20 per cent energy savings
  4. Reduce Pack Set and Silo Caking Grinding aids (GA) inhibit hydration of free lime (CaO) during storage prevents premature hardening or “pack set” in silos. especially critical in humid climates or with high free lime clinker.
    It may be stated here that Overdosing of GA can cause: – Foaming in mill (especially with glycols) reduces grinding efficiency, retardation of cement setting (especially with amines/acids), odor issues (in indoor mills) – Corrosion of mill components (if acidic aids used improperly)
    The best practice to optimise use of GA is Start with 0.02 per cent to 0.05 per cent dosage test fineness, flow, and set time adjust up/down. Due to static charge of particles, the sample may stick to the sides of sampler pipe and so sampling need to be properly done.
    Depending on type of cements i.e. OPC, PPC, PSC, PCC, the grinding aids combinations need to be optimised, a typical Poly carboxylate ether also could be a part of the combo grinding aids

Cement additives for niche properties of the cement in concrete.
The cement additives can also be tailor made to create specific niche properties in cements, OPC, PPC, PSC and PCC to create premium or special brands. The special niche properties of the cement being its additional USP of such cement products, and are useful for customers to build a durable concrete structure with increased service life.


Such properties could be:
• Additives for improved concrete performance of cements, high early strength in PPC/PSC/PCC, much reduced water demand in cement, cements with improved slump retentivity in concrete, self-compacting, self levelling in concrete, cements with improved adhesion property of the cement mortar
• Water repellence / water proofing, permeability resistance in mortars and concrete.
• Biocidal cement
• Photo catalytic cements
• Cements with negligible ASR reactions etc.

Additives for cements for improved concrete performance
High early strengths: Use of accelerators. These are chemical compounds which enhance the degree of hydration of cement. These can include setting or hardening accelerators depending on whether their action occurs in the plastic or hardened state respectively. Thus, the setting accelerators reduce the setting time, whereas the hardening accelerators increase the early age strengths. The setting accelerators act during the initial minutes of the cement hydration, whereas the hardening accelerators act mainly during the initial days of hydration.
Chloride salts are the best in class. However, use of chloride salts as hardening accelerators are strongly discouraged for their action in promoting the corrosion of rebar, thus, chloride-free accelerators are preferred. The hardening accelerators could be combinations of compounds like nitrate, nitrite and thiocyanate salts of alkali or alkaline earth metals or thiosulphate, formate, and alkanol amines depending on the cement types.
However, especially in blended cements (PPC/PSC/PCC the increased early strengths invariably decrease the 28 day strengths. These aspects lead to creating combo additives along with organic polymers to achieve improved early strengths as well as either same or marginally improved 28 days strengths with reduced clinker factor in the blended cement, special OPC with reduced admixture requirements. With use of appropriate combination of inorganic and organic additives we could create an OPC with substantially reduced water demand or improved slump retentivity. Use of such an OPC would show exceptional concrete performance in high grade concretes as it would exhibit lower admixture requirements in High Grade Concretes.
PPC with OPC like properties: With the above concept we could have a PPC, having higher percentage flyash, with a combo cement additive which would have with concrete performance similar to OPC in say M40/M50 concrete. Such a PPC would produce a high-strength PPC concrete (= 60 MPa @ 28d) + improved workability, durability and sustainability.
Another interesting aspect could also be of using ultrafine fine flyash /ultrafine slags as additions in OPC/PPC/PSC for achieving lower clinker factor as well as to achieve improved later age strengths with or without a combo cement additive.
The initial adhesion property at sites of especially PPC/PSC/PCC based mortars can be improved through use of appropriate organic polymers addition during the manufacture of these cements. Such cements would have a better adhesion property for plastering/brick bonding etc., as it has much lower rebound loss of their mortars in such applications.
It is needless to mention here that with use of additives, we could also have cement with viscosity modifying cement additives, for self-compaction and self-leveling concrete performance.
Use of Phosphogypsum retards the setting time of cements, we can use additive different additive combos to overcome retardation and improve the 1 day strengths of the cements and concretes.

About the author:
Shreesh Khadilkar, Consultant & Advisor, Former Director Quality & Product Development, ACC, a seasoned consultant and advisor, brings over 37 years of experience in cement manufacturing, having held leadership roles in R&D and product development at ACC Ltd. With deep expertise in innovative cement concepts, he is dedicated to sharing his knowledge and improving the performance of cement plants globally.

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