Connect with us

Concrete

It is equally important to build resilient building structures

Published

on

Shares

Manoj Rustagi, Chief Sustainability Officer, JSW Cement, discusses how the adoption of ‘green’ practices in cement manufacturing could reshape the future of sustainable construction worldwide.

Cement is one of the most carbon-intensive materials in construction — but innovation is changing that. As sustainability becomes central to infrastructure, green cement is emerging as a viable low-carbon alternative. In this detailed interview with Manoj Rustagi, Chief Sustainability Officer, JSW Cement, we explore what makes cement ‘green’, its performance, and its future. From durability to cutting-edge technologies, here’s a look at the cement industry’s greener path forward.

What exactly is green cement, and how does it differ from traditional cement?
At this point in time, there is no standard for defining green cement. A very simple way to understand ‘Green Cement’ or ‘Low Carbon Cement’ is the one which emits much lower greenhouse gasses (GHG) compared to conventional cement (Ordinary Portland Cement – OPC) during its manufacturing process.
In India, there are many existing BIS Standards for different types of cement products. The most common are OPC; Portland Pozzolana Cement (PPC); Portland Slag Cement (PSC) and Composite Cement (CC). While OPC emits maximum GHG during its manufacturing (approx 800-850 kg CO2/MT of OPC), PSC emits least GHG (approx 300-350 kg CO2/MT of PSC). As PSC is having close to 60 per cent lower CO2 emission compared to OPC, it is the greenest cement available in the Indian market.
There is already work happening at the central government level to define green cement, like it has been recently done for green steel, and hopefully in the next one year or so the standard definition would be available.

What are the key environmental benefits of using green cement?
The primary environmental benefits of green or low-carbon cement are:

  • Reduced CO2 emissions
  • Lower energy and power consumption
  • Conservation of limestone and fossil fuels
  • Utilisation of industrial by-products
  • (slag/fly ash)

Can green cement match the durability and strength of conventional cement?
PSC is much more durable than any other type of cement product. It has lower heat of hydration; the strength keeps on improving with time; and it has much higher resistance to chloride and sulphate attacks. Most of the concrete failures are because of chloride and sulphate attacks, which corrode the steel reinforcements and that is how cracks get initiated and propagated resulting in eventual concrete failures. For coastal applications, marine structures, seaports, and mass concreting, PSC is most suitable. Due to the intrinsic durability characteristics of PSC; it is a green and resilient cement product.
Usually everyone talks about lower GHG emissions, but it is equally important to build resilient building structures that can withstand natural calamities and have much longer lifespans. PSC is one cement type that is not only lowest in CO2 emissions but at the same time offers durability characteristics and properties (RCPT, RCMT, Mercury Intrusion, long term strength and flexural strength), which are unmatched.

What innovative technologies are being used to produce green cement?
To further reduce the CO2 emissions in the manufacturing process; some of the innovative technologies which are commercially viable are:

  • Alternative raw materials: Use of steel slag, red mud and other industrial by-products to substitute limestone
  • Alternative fuels: Use of RDF/MSW, pharmaceutical wastes like biomass etc., to substitute coal/pet-coke
  • Waste Heat Recovery (WHR): Power plants to generate electricity from waste heat
  • Renewable energy: Solar and wind energy instead of state grid

How cost-effective is green cement compared to traditional options?
All of the above innovative technologies do not increase the cost of manufacturing. There are some future technologies like Carbon Capture, Utilisation and/or Storage (CCUS), which are not commercially viable and would increase the cost of cement. As such, the options available today for low-carbon cement (like PSC) are not expensive.
The Government of India has recently notified Indian Carbon Market (ICM), which also includes the cement sector. Hopefully, this would help progressive companies to further reduce their carbon footprint.

What challenges does the industry face in adopting green cement on a large scale?
There is absolutely no incentive/motivation for builders/contractors to use green cement products and therefore there is practically no demand. While the industry has taken many steps. In fact the Indian cement industry is believed to be most energy efficient globally and has approximately 10 per cent lower GHG emissions compared to global average. But due to lack of awareness and lack of performance based standards; the demand for low carbon cement or green cement has not picked up in India.

Are governments and regulators supporting the shift to green cement?
In India, in the last couple of years, there have been many policy interventions which have been initiated. One of them, namely the carbon market is under notification; others like Green Public Procurement, Green Cement taxonomy and National CCUS Mission are in the advanced stages and are expected to be implemented in the next couple
of years.

How do you see the future of green cement in global construction?
Globally the built environment accounts for 40 per cent CO2 emissions; and the maximum embodied emissions come from cement and concrete. There is a lot of innovation happening in cement, concrete and construction. Basically, how we build and what material we use. And this is to do with both carbon mitigation as well as adaptation as the built environment is so important for sustainable living. Precast and pre-engineered buildings/structures, 3D concrete printing, ultra high performance concrete, digital and AI/ML interventions in construction, admixtures/improved concrete packing; and circularity in cement manufacturing are some examples. Low-carbon cement or green cement eventually will lead to ‘Net Zero CO2 emission’ cement, which would enable a ‘Net-Zero’ built environment that is needed for long term sustainability.

Concrete

Cement Makers Reaffirm Commitment to Sustainable Growth

Published

on

By

Shares

World Environment Day spotlight on innovation and circularity

On World Environment Day, the Indian cement industry reiterated its commitment to supporting India’s climate ambitions through sustainable manufacturing, resource efficiency and the adoption of cleaner technologies.

The Cement Manufacturers’ Association (CMA) said the sector remains aligned with the Government of India’s Net Zero commitments and is accelerating efforts to reduce its environmental footprint while supporting the country’s infrastructure and development agenda.

Parth Jindal, President, CMA and Managing Director, JSW Cement, said the industry is increasingly adopting cleaner technologies, improving energy efficiency and expanding the use of alternative fuels and raw materials. He also highlighted the growing importance of circular economy practices, where industrial by-products and waste streams from one sector are utilised as resources in another.

“The Indian Cement Industry is aligned to the Government’s commitments on carbon mitigation and is accelerating the adoption of cleaner technologies, resource efficiency and circular economy practices while actively exploring the potential of Carbon Capture, Utilisation and Storage (CCUS) as a critical pathway for deep decarbonisation,” said Jindal.

He added that coprocessing industrial waste and by-products helps conserve natural resources, reduce disposal requirements and lower the environmental footprint across multiple sectors.

According to Jindal, sustainability is no longer limited to manufacturing processes but is increasingly influencing investment decisions, innovation strategies and long-term growth plans within the industry.

Echoing similar views, Dr Raghavpat Singhania, Vice President, CMA and Managing Director, JK Cement, said sustainable development extends beyond emissions reduction and must also focus on responsible resource utilisation and waste minimisation.

“Sustainability in the built environment cannot be measured by emissions alone. It is equally about how efficiently we use resources, how effectively we minimise waste and how responsibly we create the infrastructure that will serve future generations,” said Singhania.

He noted that the cement industry is advancing its sustainability agenda through greater resource efficiency, increased circularity, technological innovation and continuous improvements in manufacturing practices. As a key contributor to India’s infrastructure development, the sector has a critical role to play in balancing economic growth with environmental responsibility.

On the occasion of World Environment Day, industry leaders reaffirmed their commitment to supporting India’s climate goals while delivering the materials required for resilient, durable and sustainable infrastructure.

 

Continue Reading

Concrete

Building a Greener Future Together

Published

on

By

Shares

Environmental sustainability requires immediate action, not just long-term commitments and discussions. Recycling, circular economy practices, and technology-driven waste management can help industries reduce environmental impact while supporting sustainable growth.

Author: Jignesh Kundaria, Director and CEO, Fornnax Technology

World Environment Day serves as an important reminder that environmental sustainability can no longer remain confined to discussions, reports, or long-term commitments. The environmental challenges facing the world today demand immediate, measurable, and collective action. Across industries and communities, waste generation continues to outpace our ability to process it responsibly, placing increasing pressure on ecosystems, natural resources, public health, and the well-being of future generations.

One of the most significant shifts required today is a change in how society perceives waste. Rather than being viewed as a material to be discarded, waste must be recognised as a valuable resource that can contribute to both economic growth and environmental protection when managed through the right technologies and systems. This mindset forms the foundation of the circular economy model that countries across the world are increasingly adopting to reduce landfill dependence, recover valuable materials, and create more sustainable industrial ecosystems.

India has made meaningful progress in strengthening awareness around sustainability, recycling, and environmental responsibility over the past decade. Significant efforts are being made to formalise the recycling sector through improved infrastructure, technology adoption, policy implementation, and broader stakeholder participation. These developments are creating a stronger foundation for responsible waste management and resource recovery across the country.

However, achieving long-term environmental impact requires collaboration from all stakeholders. Industries, policymakers, technology providers, and communities must work together with greater accountability to strengthen recycling ecosystems, encourage responsible waste management practices, and create sustainable outcomes through consistent execution rather than temporary interventions.

As someone closely associated with the recycling industry, I firmly believe that technology will play a decisive role in addressing future environmental challenges. Advanced recycling systems have the potential to recover valuable resources, reduce pollution, minimise landfill burdens, and conserve energy, creating a more sustainable future for generations to come. This belief is deeply reflected in Fornnax’s motto, “Committed to Create a Green Future,” which embodies our commitment to building long-term environmental value through innovation and responsible action.

At the same time, technology alone cannot deliver meaningful change. Real progress requires intent, awareness, participation, and a shared sense of responsibility. Sustainable development can only be achieved when innovation is supported by collective action and a genuine commitment to environmental stewardship.

On this World Environment Day, let us move beyond conversations and take meaningful steps towards creating a cleaner, greener, and more sustainable planet. By embracing innovation, strengthening recycling ecosystems, and acting responsibly today, we can create lasting environmental impact and secure a better future for generations to come.

Continue Reading

Concrete

JK Lakshmi Advances LC3 Cement Expansion

Company highlights commercial production and research partnerships

Published

on

By

Shares



The meeting reviewed progress in limestone calcined clay cement (LC3) technology and its commercial adoption in India’s cement sector, focusing on low-carbon alternatives to conventional binders. JK Lakshmi Cement noted that limestone calcined clay cement can reduce carbon dioxide emissions by up to 40 per cent compared with conventional cement and said this reduction supports industry decarbonisation. The company highlighted that it was among the first two cement manufacturers in India to move LC3 into commercial production after the Bureau of Indian Standards approved the technology as a cement standard.

Vinita Singhania said the transition of LC3 from research to commercial production reflected collaboration between industry, academia and international institutions. Maya Tissafi acknowledged JK Lakshmi Cement’s role in advancing LC3 adoption in India and its contribution in taking the technology from laboratory trials to commercial implementation. Both representatives underlined the growing relevance of sustainable construction materials as India expands infrastructure and urban development.

The meeting explored continued collaboration with Swiss research institutions such as EPFL, EMPA and ETH Zurich alongside Indian academic partners and development organisations. JK Lakshmi Cement has been associated with the LC3 initiative since 2014 and worked with EPFL, IIT Delhi, IIT Madras, Development Alternatives and Technology and Action for Rural Advancement. The company conducted one of the earliest industrial trials of LC3 and recently announced commercial production of Green Pro LC3 cement from its Jaykaypuram plant in Rajasthan.

India remains the world’s second-largest cement producer and expansion of infrastructure, urbanisation and housing demand continue to support long-term sector growth, increasing interest in low-carbon technologies. The company reported an annual turnover of more than Rupees (Rs) 60 bn and current cement capacity of about 18 million (mn) tonnes (t) per annum, with a target of reaching 30 million (mn) tonnes (t) by 2030. Apart from grey cement, the company also makes ready-mix concrete, gypsum plaster, wall putty, primers, adhesives and fly ash blocks, and both sides concluded on the need for continued collaboration to develop sustainable construction solutions.

Continue Reading

Video Thumbnail

    SIGN-UP FOR OUR GENERAL NEWSLETTER


    Trending News