Concrete

In India, the use of alternative fuel is at a very nascent stage

Published

3 years ago

November 18, 2022

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Ganesh W Jirkuntwar, Senior Executive Director & National Manufacturing Head, Dalmia Cement (Bharat) Limited, analyses the effects of raw materials on emission and efforts taken by his company to conserve the environment.

Tell us about the efforts taken by your organisation to better the environment in and around the manufacturing unit.
Our company has taken a number of efforts to better the environment in order to maximise the proportion of blended cement in our product basket, promote the usage of alternative supplementary cementitious materials recommended by IS for cement and increase the usage of alternative fuels.
We have also installed the appropriate systems to co-process wastes judiciously and follow a pre-processing system for alternative fuels. We have implemented a waste heat recovery system and are now able to tap into solar energy.

How does the use of environmentally friendly fuels or raw materials impact the profitability of the organisation?
Dalmia Bharat Limited follows the business philosophy of ‘Clean & Green is Profitable and Sustainable.’ By using environmentally friendly fuel and raw materials, we have managed to create an impact on our triple bottom line: social, environmental as well as financial performance. A proper strategy for selection and adopting environment-friendly initiatives that act as fuel and raw materials is expected to significantly boost the organisation’s profitability.
Large volumes of legacy municipal waste are available at various municipal dump sites, that can be converted to Refuse Derived Fuel (RDF) and can be used by Indian cement Industries. Cement industries are currently facing a tough time due to the steep rise in fuel prices. The usage of RDF and other alternative fuels will help the cement industry in optimising its fuel cost.

Tell us about the types of blended cement and their composition manufactured by your organisation. How does the strength of blended cement differ from OPC?
At Dalmia Cement (Bharat) Limited, we manufacture PPC, PCC and PSC as blended cements. The composition of blended cements is decided strictly in accordance with BIS norms.
The overall strength of blended cement is comparable with OPC 43 Grade. However, Indian Specification (IS) recommends that blended cement should meet the strength Norms of OPC 33 Grade.

What are the key supplementary materials used to manufacture blended cement?
The key supplementary materials used to manufacture blended cement are pulverised fuel ash, known as flyash, and granulated slag.

Tell us about the impact blended cement creates on the environment.
Blended cement has higher durability and better resistance towards the aggressive environment of chloride and sulphate. Additionally, less clinker is being consumed to produce the same volume of cement, resulting in raw materials savings, energy savings (thermal and electrical), reduced CO2 emission and waste utilisation.

How does the use of alternative fuels impact the productivity and efficiency of the manufacturing process?
The use of alternative fuels leads to a marginal increase in overall heat consumption. In case a preheater fan and other equipment are being used at their full capacity, usage of alternative fuels may result in a marginal reduction of clinker throughput.

What role does technology play in creating blends that help curb emissions and make the environment better?
Technology helps reduce CO2 emission as a result of low clinker consumption in blended cement compared to non-blended cement.

What are the major challenges your organisation is facing to curb the emission rate?
Although cement manufacturing is an energy-intensive process, during clinker manufacturing, the emission of process CO2 is inevitable. The only way to curb the emission significantly as of now helps replace fossil fuels with alternative fuels.
The major challenges in increasing the usage of alternative fuels include adopting RDF which is the only alternative fuel and is available in large volumes. However, the quality of RDF being supplied in India is very poor and inconsistent. Additionally, high ash content and moisture in RDF restrict the higher usage of RDF.
In India, the use of alternative fuel is at a very nascent stage and cement players need to invest in R&D on understanding its impact on cement and corrective actions

How do you foresee the future of emissions created by the cement industry?
The cement industry is putting in unrelenting efforts to reduce the Cement Clinker Ratio (CC Ratio), higher usage of alternative fuels and increased the usage of renewable energy. This will reflect in their carbon footprint figure in the next few years. We expect that, in a few years, newer technological adoption such as carbon capture, green hydrogen usage, rotodynamic heater etc. will also decide the future of emissions by cement industries.

-Kanika Mathur

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Concrete

BMC Cement Concretisation Cuts Pothole Repairs By 70 Per Cent

Project worth Rs 170 billion (Rs 170 bn) aims to concretise 1,900 km by 2027

Published

2 days ago

April 13, 2026

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The Brihanmumbai Municipal Corporation’s cement concretisation project, valued at Rs 170 billion (Rs 170 bn), has reduced expenditure on pothole repairs by 70 per cent over three years. Spending on repairs fell from Rs 2.02 billion in 2023–24 to Rs 1.56 billion in 2024–25 and then to Rs 890 million (Rs 890 mn) in 2025–26. The current tender is expected to be about Rs 440 million, representing a further 50 per cent reduction.

The project is being executed in two phases, with Phase I covering 307 km from October 2023 and Phase II covering 370 km from October 2024. The Indian Institute of Technology is auditing Phase II and will now also audit Phase I to ensure quality and accountability. Mumbai’s total road network spans approximately 2,050 km, of which about 1,200 km had been converted to cement concrete before 2022.

Since 2022 an additional 677 km were taken up for concretisation and nearly 71 per cent of that work, amounting to 481 km, has been completed. Municipal officials indicated that 10–15 per cent of the remaining work is expected to be completed by May 2026 and another 10 per cent by December 2026. The entire programme is scheduled for completion by May 2027, by which time nearly 1,900 km of Mumbai’s roads are expected to be fully concretised.

The administration has also developed a real time dashboard that displays detailed information about contracts, contractors and progress and citizens can access the latest updates online. The dashboard includes contact details for the civic officials and contractors responsible for particular roads to enhance transparency and accountability. The commissioner directed that ongoing works be completed by 31 May ahead of the monsoon to safeguard completion targets and minimise disruption.

Concrete

Shree Cement Approves Rs 1,800 Crore Meghalaya Plant

Integrated unit to be completed by quarter ending March 2028

Published

2 days ago

April 13, 2026

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Shree Cement has approved the establishment of an integrated cement plant in Meghalaya, signalling a targeted capacity expansion to serve regional demand. The board cleared a unit at Village Daistong in East Jaintia Hills District with a clinker capacity of zero point nine five million tonnes per annum (mn t) and a cement capacity of zero point nine nine million tonnes per annum (mn t). The project was approved on April four, 2026 and is designed as a new addition to the company’s production network where it currently has no existing plant.

The company has earmarked an estimated investment of Rs 1,800 crore (Rs 18 billion (bn)) for the project, which will be financed through a mix of internal accruals and debt. Management has indicated a balanced financing strategy to preserve cash flows while supporting long-term growth and operational investment. The financing approach is intended to avoid over reliance on external borrowing and to maintain financial discipline during the build out.

The plant is expected to improve logistics efficiency and compress distribution distances to emerging demand centres in the north-east, potentially lowering transportation costs and lead times. By locating production closer to demand the company aims to strengthen market access and respond more effectively to regional construction activity. The project forms part of a broader strategy to diversify the production base across geographies and reduce concentration risk.

Execution is planned over a multi-year window with completion targeted by the quarter ending March 2028 and the company will proceed with construction and requisite regulatory clearances. The integrated design is intended to enhance operational control and production efficiency once operational. The decision follows a regulatory filing dated April four, 2026 and the disclosed details have not been independently verified.

Concrete

WCA Welcomes SiloConnect as associate corporate member

Published

2 days ago

April 13, 2026

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The World Cement Association (WCA) has announced SiloConnect as its newest associate corporate member, expanding its network of technology providers supporting digitalisation in the cement industry. SiloConnect offers smart sensor technology that provides real-time visibility of cement inventory levels at customer silos, enabling producers to monitor stock remotely and plan deliveries more efficiently. The solution helps companies move from reactive to proactive logistics, improving delivery planning, operational efficiency and safety by reducing manual inspections. The technology is already used by major cement producers such as Holcim, Cemex and Heidelberg Materials and is deployed across more than 30 countries worldwide.