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Today’s blended cements have its origin in the old Roman construction. Due to technological advancements [now] the similar cements are available in the new forms.

The Romans started making concrete more than 2,000 years ago, but it wasn’t quite like today’s concrete. They had a different formula, which resulted in a substance that was not as strong as the modern product. ‘Roman concrete is . . . considerably weaker than modern concretes. It’s approximately ten times weaker,’ says Renato Perucchio, a mechanical engineer at the University of Rochester in New York. ‘What this material is assumed to have is phenomenal resistance over time.’ That resistance, or durability against the elements, may be due to one of the concrete’s key ingredients: volcanic ash. Modern concrete is a mix of a lime-based cement, water, sand and so-called aggregates such as fine gravel.

Indian scenario
Surkhi, was the commonest pozzolanic materials used in India resembles volcanic ash. It has been used along with lime in many of our old structures, before modern Portland cement has taken its roots in India. Even after Portland cement made its appearance in the field of construction, Surkhi was used as an admixture to remedy some of the shortcomings of cement concrete. Surkhi was one of the main constituents in waterproofing treatments in conjunction with lime and sometimes even with cement for extending valuable pozzolanic action to make the treatment impervious. Surkhi is an artificial pozzolana made by powdering bricks or burnt clay balls. In some major works, for large scale production of Surkhi, clay balls are specially burnt for this purpose and then powdered. By its nature, it is a very complex material differing widely in its qualities and performances. Bhakra Nangal Dam is a standing ovation to the use of Surkhi in the construction.

Policy hurdles
The Indian cement sector had been under strict government control for almost the whole of the period 1969 to 1982. Government intervention took place both directly and indirectly. Direct intervention happened in the form of government control over production, capacity and distribution of cement, while indirect intervention took the form of price control. During this period, many companies and their plants started off but still growth was not seen at the desired rate. In 1977, higher prices were allowed for cement produced by new plants or major expansions of existing plants. Due to slow development, the uniform price imposed by the government, was substituted by a three-tier price system in 1979. Different prices were assigned to cement produced in low, medium and high cost plants.

Later on during the shortage of cement the producers were allowed to use Surkhi, burnt clay as a pozzolanic material to produce more quantity of cement and then the problem of quality started. Indiscriminate use of any sort of burnt clay material, without ensuring proper quality control norms created many issues with Pozzolana cement and gave it a bad name in late seventies and early eighties. Therefore initially when blended cements were reintroduced based on fly ash as a performance enhancer had to face users resistance. Now the blended cement available based with fly ash as a pozzolana is much different than the Surkhi-based Pozzolana cement.

Present scene
As per the papers published by NCCBM, the production of ordinary Portland Cement in India has currently remained to about 25 per cent and that of Portland Pozzolana cement has steadily increased to about 67 per cent. The production of Portland slag cement is limited to 8 per cent. The production trend of different types of cement such as OPC, PPC, PSC and others in the last decade indicates that the trend is more towards blended cements. This is a favourable change in the product mix of Indian cement industry as PPC and PSC are more specialised types of cement with advantages in terms of better durability characteristics.

Many developed countries started using such blended cements in large quantities in construction of critical structures such as rocket launch pads, sea water jetties, huge dams, etc. Production of blended cements directly increases the plant capacity without any need for creating additional clinker making capacity. In an environment of growing competition, another development has been the introduction of higher grades of cement particularly for OPC. However, realisation is growing fast amongst the consumers at large, that the properties of durability are of greater importance than strength.

Improvement in construction technologies and the need for durable construction in different aggressive environments have enhanced the use of blended cements. Under such prevailing trend the need of stringent control on quality parameters related to raw materials and cement becomes essential. In the present paper, efforts have been made to present quality trends of OPC and PPC as their production is around 92 per cent of total. In order to conserve high grade limestone and fuels, thrust is given for the production of variety of cements using inferior grade and/or alternative raw materials by adopting state-of-art manufacturing technology. To maintain the quality of cements and to promote the use of different types of wastes/by-products or inferior grade raw materials in the cement manufacture, BIS (Bureau of Indian Standards) has incorporated amendments in the standard specifications and also revised some of the specifications. The salient features of the modifications in standards are:

  • Increase in limit of pozzolana in PPC
  • Increase in limit of granulated blast furnace slag in PSC
  • Increase in limit of MgO in PSC
  • Specifying the upper limit of compressive strength at 672 ? 4 hrs for OPC-33 & 43 grades
  • Addition of performance improver up to 5 per cent in OPC
  • Enhancing the limits of insoluble residue
  • Increasing the limits of SO3 to 3.5 per cent Specifying requirements of cement for pre-cast concrete

Most of the cement plants in India have the state-of-the-art technology and are able to achieve their capacity utilisation as per the market demand. Cement industry is going ahead with a modification and upgradation of technology particularly in energy conservation. Cement industry’s average energy consumption is about 725 kcal/kg clinker thermal energy and 80 kWh/t cement electrical energy.

Efforts are on relating to utilisation of alternate energy sources/fuels either partially or fully substitute coal in cement manufacture in the coming years, namely, pet coke, lignite, natural gas, and biomass wastes including fruit of Jatropha Carcus, Pongamia and Algae. Although the modern cement plants have incorporated the latest technology, yet there is scope for further improvement in the areas of coprocessing of waste derived/hazardous combustible wastes as fuel, cogeneration of power, bulk transport of cement, palletising and shrink wrapping for packing and dispatch.

Future trends
The R&D activities and thrust to reduce CO2 emission associated with properties has resulted a trend towards the increased use of blended cement with the share of blended cements increasing to 75 per cent followed by Ordinary Portland Cement (OPC) (? 25 per cent). Fly ash based Portland Pozzolana Cement (PPC) contributes the major share (67 per cent) of the total production with 8 per cent of Portland Slag Cement (PSC). In addition to conservation of natural resources, fuel and reduction of green house gases, there are other advantages of using blended cements.

The cement industry in India has also shown potential to utilise hazardous waste. The awareness on utilisation of wastes and environmental pollutants in the manufacture of cement have increased many folds in the last decade. The production of PPC and PSC of uniform quality by utilising more proportion of fly ash and/or slag could be possible by their assured consumer acceptance and research activities.

By and large (BIS) Indian specifications have kept pace with the specifications from developed countries and have been quite dynamic with times and technology. The amendments in the specification are expected to come in the shortest possible of times, which is rather difficult for such a large country. Recently BIS has come out with codes for composite cement which allows the use of two different SCMs like fly ash and slag together. It is one step forward. There is a need for standard specifications for composite cements, using variety of wastes and keeping in view the pragmatic approach of utilisation of cement in different types of construction activities has also been realised.

Various wastes like lead-zinc slag, copper slag, steel slag, marble dust, which were not allowed for utilisation earlier, have now been identified as suitable material for the use in cement and other building products. As availability of coal and limestone are limited and soon these will be finished and on the other hand the requirement for cement is ever increasing. Hence adopting modern technologies and alternate materials is very essential for cement industry to meet this gap.

Cenospheres are one of the most desired by products of fly ash. They are small hollow spheres with roughly 10-1,000 ?m in diameter and constitute about 1-2 per cent of the fly ash obtained from the coal combustion processes. Because of their specific properties, namely their low density and high mechanical strength, cenospheres are an important subject of coal fired power plants. Research results indicate that cenospheres from coal combustion are constituted by aluminosilicate glasses with some crystalline phases like quartz, mullite and calcite. The high alumina content – roughly 25-27 wt per cent is responsible for the high mechanical strength, while density of most cenospheres is lower than 1 g/cm3. Regarding the formation process, there are correlations between the amount of cenospheres and the sodium and calcium content, in the different fly ash samples.

The economics of blended cements will largely depend on the landed cost of fly ash or slag. The common belief that it is a waste material and can be given away at throw away price has already vanished. Cement companies are prepared to pay better rates for consistent quality of fly ash.

Reference: Quality Trend In Indian Cements – A Decade Appraisal

AUTHORS: US Sinha, K Bhatnagar, R Gupta and MM Ali of National Council for Cement and Building Materials, India (NCCBM)

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Concrete

Fornnax Unveils the World’s Largest NPD and Demo Centre to Accelerate Global Recycling Innovation

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A 12-acre innovation campus enables Fornnax to design, test and validate high-performance recycling solutions at global standards in record time.

Fornnax has launched one of the world’s largest New Product Development (NPD) centres and demo plants, spanning more than 12 acres, marking a major step toward its vision of becoming a global recycling technology leader by 2030. Designed to accelerate real-world innovation, the facility will enable faster product design cycles, large-scale performance validation, and more reliable equipment for high-demand recycling applications.

At the core of the new campus is a live demo plant engineered to support application-specific testing. Fornnax will use this facility to upgrade its entire line of shredders and granulators—enhancing capacity, improving energy efficiency, and reducing downtime. With controlled test environments, machines can be validated for 3,000 to 15,000 hours of operation, ensuring real-world durability and high availability of 18–20 hours per day. This approach gives customers proven performance data before deployment.

“Innovation in product development is the key to becoming a global leader,” said Jignesh Kundariya, Director and CEO of Fornnax. “With this facility, we can design, test and validate new technologies in 6–8 months, compared to 4–5 years in a customer’s plant. Every machine will undergo rigorous Engineering Build (EB) and Manufacturing Build (MB) testing in line with international standards.”

Engineering Excellence Powered by Gate Review Methodology

Fornnax’s NPD framework follows a structured Gate Review Process, ensuring precision and discipline at every step. Projects begin with market research and ideation led by Sales and Marketing, followed by strategic review from the Leadership Team. Detailed engineering is then developed by the Design Team and evaluated by Manufacturing, Service and Safety before approval. A functional prototype is built and tested for 6–8 months, after which the design is optimised for mass production and commercial rollout.

Open-Door Customer Demonstration and Material Testing

The facility features an open-door demonstration model, allowing customers to bring their actual materials and test multiple machines under varied operating conditions. Clients can evaluate performance parameters, compare configurations and make informed purchasing decisions without operational risk.

The centre will also advance research into emerging sectors including E-waste, cables, lithium-ion batteries and niche heterogeneous waste streams. Highly qualified engineering and R&D teams will conduct feasibility studies and performance analysis to develop customised solutions for unfamiliar or challenging materials. This capability reinforces Fornnax’s reputation as a solution-oriented technology provider capable of solving real recycling problems.

Developing Global Recycling Talent

Beyond technology, the facility also houses a comprehensive OEM training centre. It will prepare operators and maintenance technicians for real-world plant conditions. Trainees will gain hands-on experience in assembly, disassembly and grinding operations before deployment at customer sites. Post-training, they will serve as skilled support professionals for Fornnax installations. The company will also deliver corporate training programs for international and domestic clients to enable optimal operation, swift troubleshooting and high-availability performance.

A Roadmap to Capture Global Demand

Fornnax plans to scale its offerings in response to high-growth verticals including Tyre recycling, Municipal Solid Waste (MSW), E-waste, Cable and Aluminium recycling. The company is also preparing solutions for new opportunities such as Auto Shredder Residue (ASR) and Lithium-Ion Battery recovery. With research, training, validation and customer engagement housed under one roof, Fornnax is laying the foundation for the next generation of recycling technologies.

“Our goal is to empower customers with clarity and confidence before they invest,” added Kundariya. “This facility allows them to test their own materials, compare equipment and see real performance. It’s not just about selling machines—it’s about building trust through transparency and delivering solutions that work.”

With this milestone, Fornnax reinforces its long-term commitment to enabling industries worldwide with proven, future-ready recycling solutions rooted in innovation, engineering discipline and customer collaboration.

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Concrete

Balancing Rapid Economic Growth and Climate Action

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Dr Yogendra Kanitkar, VP R&D, and Dr Shirish Kumar Sharma, Assistant Manager R&D, Pi Green Innovations, look at India’s cement industry as it stands at the crossroads of infrastructure expansion and urgent decarbonisation.

The cement industry plays an indispensable role in India’s infrastructure development and economic growth. As the world’s second-largest cement producer after China, India accounts for more than 8 per cent of global cement production, with an output of around 418 million tonnes in 2023–24. It contributes roughly 11 per cent to the input costs of the construction sector, sustains over one million direct jobs, and generates an estimated 20,000 additional downstream jobs for every million tonnes produced. This scale makes cement a critical backbone of the nation’s development. Yet, this vitality comes with a steep environmental price, as cement production contributes nearly 7 per cent of India’s total carbon dioxide (CO2) emissions.
On a global scale, the sector accounts for 8 per cent of anthropogenic CO2 emissions, a figure that underscores the urgency of balancing rapid growth with climate responsibility. A unique challenge lies in the dual nature of cement-related emissions: about 60 per cent stem from calcination of limestone in kilns, while the remaining 40 per cent arise from the combustion of fossil fuels to generate the extreme heat of 1,450°C required for clinker production (TERI 2023; GCCA).
This dilemma is compounded by India’s relatively low per capita consumption of cement at about 300kg per year, compared to the global average of 540kg. The data reveals substantial growth potential as India continues to urbanise and industrialise, yet this projected rise in consumption will inevitably add to greenhouse gas emissions unless urgent measures are taken. The sector is also uniquely constrained by being a high-volume, low-margin business with high capital intensity, leaving limited room to absorb additional costs for decarbonisation technologies.
India has nonetheless made notable progress in improving the carbon efficiency of its cement industry. Between 1996 and 2010, the sector reduced its emissions intensity from 1.12 tonnes of CO2 per ton of cement to 0.719 tonnes—making it one of the most energy-efficient globally. Today, Indian cement plants reach thermal efficiency levels of around 725 kcal/kg of clinker and electrical consumption near 75 kWh per tonne of cement, broadly in line with best global practice (World Cement 2025). However, absolute emissions continue to rise with increasing demand, with the sector emitting around 177 MtCO2 in 2023, about 6 per cent of India’s total fossil fuel and industrial emissions. Without decisive interventions, projections suggest that cement manufacturing emissions in India could rise by 250–500 per cent by mid-century, depending on demand growth (Statista; CEEW).
Recognising this threat, the Government of India has brought the sector under compliance obligations of the Carbon Credit Trading Scheme (CCTS). Cement is one of the designated obligated entities, tasked with meeting aggressive reduction targets over the next two financial years, effectively binding companies to measurable progress toward decarbonisation and creating compliance-driven demand for carbon reduction and trading credits (NITI 2025).
The industry has responded by deploying incremental decarbonisation measures focused on energy efficiency, alternative fuels, and material substitutions. Process optimisation using AI-driven controls and waste heat recovery systems has made many plants among the most efficient worldwide, typically reducing fuel use by 3–8 per cent and cutting emissions by up to 9 per cent. Trials are exploring kiln firing with greener fuels such as hydrogen and natural gas. Limited blends of hydrogen up to 20 per cent are technically feasible, though economics remain unfavourable at present.
Efforts to electrify kilns are gaining international attention. For instance, proprietary technologies have demonstrated the potential of electrified kilns that can reach 1,700°C using renewable electricity, a transformative technology still at the pilot stage. Meanwhile, given that cement manufacturing is also a highly power-intensive industry, several firms are shifting electric grinding operations to renewable energy.
Material substitution represents another key decarbonisation pathway. Blended cements using industrial by-products like fly ash and ground granulated blast furnace slag (GGBS) can significantly reduce the clinker factor, which currently constitutes about 65 per cent in India. GGBS can replace up to 85 per cent of clinker in specific cement grades, though its future availability may fall as steel plants decarbonise and reduce slag generation. Fly ash from coal-fired power stations remains widely used as a low-carbon substitute, but its supply too will shrink as India expands renewable power. Alternative fuels—ranging from biomass to solid waste—further allow reductions in fossil energy dependency, abating up to 24 per cent of emissions according to pilot projects (TERI; CEEW).
Beyond these, Carbon Capture, Utilisation, and Storage (CCUS) technologies are emerging as a critical lever for achieving deep emission cuts, particularly since process emissions are chemically unavoidable. Post-combustion amine scrubbing using solvents like monoethanolamine (MEA) remains the most mature option, with capture efficiencies between 90–99 per cent demonstrated at pilot scale. However, drawbacks include energy penalties that require 15–30 per cent of plant output for solvent regeneration, as well as costs for retrofitting and long-term corrosion management (Heidelberg Materials 2025). Oxyfuel combustion has been tested internationally, producing concentrated CO2-laden flue gas, though the high cost of pure oxygen production impedes deployment in India.
Calcium looping offers another promising pathway, where calcium oxide sorbents absorb CO2 and can be regenerated, but challenges of sorbent degradation and high calcination energy requirements remain barriers (DNV 2024). Experimental approaches like membrane separation and mineral carbonation are advancing in India, with startups piloting systems to mineralise flue gas streams at captive power plants. Besides point-source capture, innovations such as CO2 curing of concrete blocks already show promise, enhancing strength and reducing lifecycle emissions.
Despite progress, several systemic obstacles hinder the mass deployment of CCUS in India’s cement industry. Technology readiness remains a fundamental issue: apart from MEA-based capture, most technologies are not commercially mature in high-volume cement plants. Furthermore, CCUS is costly. Studies by CEEW estimate that achieving net-zero cement in India would require around US$ 334 billion in capital investments and US$ 3 billion annually in operating costs by 2050, potentially raising cement prices between 19–107 per cent. This is particularly problematic for an industry where companies frequently operate at capacity utilisations of only 65–70 per cent and remain locked in fierce price competition (SOIC; CEEW).
Building out transport and storage infrastructure compounds the difficulty, since many cement plants lie far from suitable geological CO2 storage sites. Moreover, retrofitting capture plants onto operational cement production lines adds technical integration struggles, as capture systems must function reliably under the high-particulate and high-temperature environment of cement kilns.
Overcoming these hurdles requires a multi-pronged approach rooted in policy, finance, and global cooperation. Policy support is vital to bridge the cost gap through instruments like production-linked incentives, preferential green cement procurement, tax credits, and carbon pricing mechanisms. Strategic planning to develop shared CO2 transport and storage infrastructure, ideally in industrial clusters, would significantly lower costs and risks. International coordination can also accelerate adoption.
The Global Cement and Concrete Association’s net-zero roadmap provides a collaborative template, while North–South technology transfer offers developing countries access to proven technologies. Financing mechanisms such as blended finance, green bonds tailored for cement decarbonisation and multilateral risk guarantees will reduce capital barriers.
An integrated value-chain approach will be critical. Coordinated development of industrial clusters allows multiple emitters—cement, steel, and chemicals—to share common CO2 infrastructure, enabling economies of scale and lowering unit capture costs. Public–private partnerships can further pool resources to build this ecosystem. Ultimately, decarbonisation is neither optional nor niche for Indian cement. It is an imperative driven by India’s growth trajectory, environmental sustainability commitments, and changing global markets where carbon intensity will define trade competitiveness.
With compliance obligations already mandated under CCTS, the cement industry must accelerate decarbonisation rapidly over the next two years to meet binding reduction targets. The challenge is to balance industrial development with ambitious climate goals, securing both economic resilience and ecological sustainability. The pathway forward depends on decisive governmental support, cross-sectoral innovation, global solidarity, and forward-looking corporate action. The industry’s future lies in reframing decarbonisation not as a burden but as an investment in competitiveness, climate alignment and social responsibility.

References

  • Infomerics, “Indian Cement Industry Outlook 2024,” Nov 2024.
  • TERI & GCCA India, “Decarbonisation Roadmap for the Indian Cement Industry,” 2023.
  • UN Press Release, GA/EF/3516, “Global Resource Efficiency and Cement.”
  • World Cement, “India in Focus: Energy Efficiency Gains,” 2025.
  • Statista, “CO2 Emissions from Cement Manufacturing 2023.”
  • Heidelberg Materials, Press Release, June 18, 2025.
  • CaptureMap, “Cement Carbon Capture Technologies,” 2024.
  • DNV, “Emerging Carbon Capture Techniques in Cement Plants,” 2024.
  • LEILAC Project, News Releases, 2024–25.
  • PMC (NCBI), “Membrane-Based CO2 Capture in Cement Plants,” 2024.
  • Nature, “Carbon Capture Utilization in Cement and Concrete,” 2024.
  • ACS Industrial Engineering & Chemistry Research, “CCUS Integration in Cement Plants,” 2024.
  • CEEW, “How Can India Decarbonise for a Net-Zero Cement Industry?” (2025).
  • SOIC, “India’s Cement Industry Growth Story,” 2025.
  • MDPI, “Processes: Challenges for CCUS Deployment in Cement,” 2024.
  • NITI Aayog, “CCUS in Indian Cement Sector: Policy Gaps & Way Forward,” 2025.

ABOUT THE AUTHOR:
Dr Yogendra Kanitkar, Vice President R&D, Pi Green Innovations, drives sustainable change through advanced CCUS technologies and its pioneering NetZero Machine, delivering real decarbonisation solutions for hard-to-abate sectors.

Dr Shirish Kumar Sharma, Assitant Manager R&D, Pi Green Innovations, specialises in carbon capture, clean energy, and sustainable technologies to advance impactful CO2 reduction solutions.

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Concrete

Carbon Capture Systems

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Nathan Ashcroft, Director, Strategic Growth, Business Development, and Low Carbon Solutions – Stantec, explores the challenges and strategic considerations for cement industry as it strides towards Net Zero goals.

The cement industry does not need a reminder that it is among the most carbon-intensive sectors in the world. Roughly 7–8 per cent of global carbon dioxide (CO2) emissions are tied to cement production. And unlike many other heavy industries, a large share of these emissions come not from fuel but from the process itself: the calcination of limestone. Efficiency gains, fuel switching, and renewable energy integration can reduce part of the footprint. But they cannot eliminate process emissions.
This is why carbon capture and storage (CCS) has become central to every serious discussion
about cement’s pathway to Net Zero. The industry already understands and accepts this challenge.
The debate is no longer whether CCS will be required—it is about how fast, affordable, and seamlessly it can be integrated into facilities that were never designed for it.

In many ways, CCS represents the ‘last mile’of cement decarbonisation. Once the sector achieves effective capture at scale, the most difficult part of its emissions profile will have been addressed. But getting there requires navigating a complex mix of technical, operational, financial and regulatory considerations.

A unique challenge for cement
Cement plants are built for durability and efficiency, not for future retrofits. Most were not designed with spare land for absorbers, ducting or compression units. Nor with the energy integration needs of capture systems in mind. Retrofitting CCS into these existing layouts presents a series of non-trivial challenges.
Reliability also weighs heavily in the discussion. Cement production runs continuously, and any disruption has significant economic consequences. A CCS retrofit typically requires tie-ins to stacks and gas flows that can only be completed during planned shutdowns. Even once operational, the capture system must demonstrate high availability. Otherwise, producers may face the dual cost of capture downtime and exposure to carbon taxes or penalties, depending on jurisdiction.
Despite these hurdles, cement may actually be better positioned than some other sectors. Flue gas from cement kilns typically has higher CO2 concentrations than gas-fired power plants, which improves capture efficiency. Plants also generate significant waste heat, which can be harnessed to offset the energy requirements of capture units. These advantages give the industry reason to be optimistic, provided integration strategies are carefully planned.

From acceptance to implementation
The cement sector has already acknowledged the inevitability of CCS. The next step is to turn acceptance into a roadmap for action. This involves a shift from general alignment around ‘the need’ toward project-level decisions about technology, layout, partnerships and financing.
The critical questions are no longer about chemistry or capture efficiency. They are about the following:

  • Space and footprint: Where can capture units be located? And how can ducting be routed in crowded plants?
  • Energy balance: How can capture loads be integrated without eroding plant efficiency?
  • Downtime and risk: How will retrofits be staged to avoid prolonged shutdowns?
  • Financing and incentives: How will capital-intensive projects be funded in a sector with
    tight margins?
  • Policy certainty: Will governments provide the clarity and support needed for long-term investment
  • Technology advancement: What are the latest developments?
  • All of these considerations are now shaping the global CCS conversation in cement.

Economics: The central barrier
No discussion of CCS in the cement industry is complete without addressing cost. Capture systems are capital-intensive, with absorbers, regenerators, compressors, and associated balance-of-plant representing a significant investment. Operational costs are dominated by energy consumption, which adds further pressure in competitive markets.
For many producers, the economics may seem prohibitive. But the financial landscape is changing rapidly. Carbon pricing is becoming more widespread and will surely only increase in the future. This makes ‘doing nothing’ an increasingly expensive option. Government incentives—ranging from investment tax credits in North America to direct funding in Europe—are accelerating project viability. Some producers are exploring CO2 utilisation, whether in building materials, synthetic fuels, or industrial applications, as a way to offset costs. This is an area we will see significantly more work in the future.
Perhaps most importantly, the cost of CCS itself is coming down. Advances in novel technologies, solvents, modular system design, and integration strategies are reducing both capital requirements
and operating expenditures. What was once prohibitively expensive is now moving into the range of strategic possibility.
The regulatory and social dimension
CCS is not just a technical or financial challenge. It is also a regulatory and social one. Permitting requirements for capture units, pipelines, and storage sites are complex and vary by jurisdiction. Long-term monitoring obligations also add additional layers of responsibility.
Public trust also matters. Communities near storage sites or pipelines must be confident in the safety and environmental integrity of the system. The cement industry has the advantage of being widely recognised as a provider of essential infrastructure. If producers take a proactive role in transparent engagement and communication, they can help build public acceptance for CCS
more broadly.

Why now is different
The cement industry has seen waves of technology enthusiasm before. Some have matured, while others have faded. What makes CCS different today? The convergence of three forces:
1. Policy pressure: Net Zero commitments and tightening regulations are making CCS less of an option and more of an imperative.
2. Technology maturity: First-generation projects in power and chemicals have provided valuable lessons, reducing risks for new entrants.
3. Cost trajectory: Capture units are becoming smaller, smarter, and more affordable, while infrastructure investment is beginning to scale.
This convergence means CCS is shifting from concept to execution. Globally, projects are moving from pilot to commercial scale, and cement is poised to be among the beneficiaries of this momentum.

A global perspective
Our teams at Stantec recently completed a global scan of CCS technologies, and the findings are encouraging. Across solvents, membranes, and
hybrid systems, innovation pipelines are robust. Modular systems with reduced footprints are
emerging, specifically designed to make retrofits more practical.
Equally important, CCS hubs—where multiple emitters can share transport and storage infrastructure—are beginning to take shape in key regions. These hubs reduce costs, de-risk storage, and provide cement producers with practical pathways to integration.

The path forward
The cement industry has already accepted the challenge of carbon capture. What remains is charting a clear path to implementation. The barriers—space, cost, downtime, policy—are real. But they are not insurmountable. With costs trending downward, technology footprints shrinking, and policy support expanding, CCS is no longer a distant aspiration.
For cement producers, the decision is increasingly about timing and positioning. Those who move early can potentially secure advantages in incentives, stakeholder confidence, and long-term competitiveness. Those who delay may face higher costs and tighter compliance pressures.
Ultimately, the message is clear: CCS is coming to cement. The question is not if but how soon. And once it is integrated, the industry’s biggest challenge—process emissions—will finally have a solution.

ABOUT THE AUTHOR:
Nathan Ashcroft, Director, Strategic Growth, Business Development, and Low Carbon Solutions – Stantec, holds expertise in project management, strategy, energy transition, and extensive international leadership experience.

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