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Our target is to become carbon-negative by 2040: Dalmia Cement

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Elaborating on its sustainability initiatives, Ashwani Pahuja, Chief Sustainability Officer and Executive Director, Dalmia Cement (Bharat) Limited, India reveals that In the last five years, the company has trimmed 17.6 million tonnes of carbon dioxide emissions from its operations.

Sustainability, as a concept, has picked up well within the cement manufacturers. Elaborate on initiatives adopted by Dalmia Cement.

Our target is to become carbon negative by 2040. The first step is RE 100 by 2030 and fossil fuel replacement by 2035. Since the last decade, there are major initiatives on sustainability starting with material circularity, increased utilisation of industrial waste including fly-ash and and slag. In 2013, we were consuming nearly 1 million tonnes of industrial waste, which has increased to 6 million tonnes. That is a six fold increase in our material circularity or circular economy.

Multiple energy efficiency optimization programmes have also been implemented at the plant including retrofitting of energy efficient equipment. Today, the average energy consumption within our group is 71 kWh/tonne, which is nearly 20% lower than the global average. These two measures coupled with certain initiatives in renewables (installed 8 MW solar PV + 9MW of waste recovery project) has made Dalmia one of the lowest carbon footprint companies globally. The CDP (Carbon Disclosure Project) has ranked Dalmia as the number one group globally in the business readiness for low carbon in their global sector report published in 2018.

In the last four years, we have also become five times water positive. The aim is to be 25 times water positive by 2030. In the last five years, we have avoided 17.6 million tonnes of carbon dioxide emissions from our operations.

What are the other measures under implementation?

To further reduce our dependency on fossil fuels, we are installing waste heat recovery in plants wherever it is technically feasible. From the current 9.2 MW, it will increase to 56.2 MW in next 4-5 years. And in carbon neutral fuels (biomass) currently at 4% will be enhanced to 25% in the next five years. More solar installation (77MW) is in the offing as part of RE100 target set for 2030. By then, all electricity consumption for plants will be from renewables.

Can you quantify the percentage of increase in fund allocations for sustainability initiatives annually?

There are certain constraints in the solar initiative for private players, particularly, in transmissions segment policies. We hope that this would be sorted by the government with enabling policies. Financing for sustainable technologies and carbon technologies is not an issue as global financing companies are ready to fund provided you reduce carbon footprint.

In line with Paris Climate Agreement, there may be a push from the government. In European countries, the polluter pays for industrial wastes as well as for various alternate fuels including landfill activities. We may expect such policies in the near future in our country. We are looking at bamboo plants in waste land, which in turn, can be a fuel for the cement industry as well as for the power industry.

As a standalone, it is very difficult to switch over to carbon neutral technologies unless there are very attractive carbon markets. In the near future, these carbon markets are likely to become active. There are Green Climate Funds to the tune of $100 million every year to the developing nations for carbon-neutral technologies.

Could you elaborate on the cost advantage after adopting newer technologies?

Cost benefits are not immediate but over the medium- to long-term, the benefits are good. Initially, solar was at Rs 16/ unit. However, technological advancements and economies of scale brought the prices down. In the long term, these technologies will have to become viable through economies of scale technologies and also by enabling policies including incentives and the carbon markets. So, it?? a mix of low interest green finance, liberal policies as well as economics of scale.

Does India have a compliance structure for companies that are internationally accepted when it comes to green funds?

IFC and ADB are ready to fund projects provided the organisations come forward with various carbon neutral initiatives. For Dalmia, which is arguably one of the lowest carbon footprint companies in the world, it is not that difficult.

Renjini Liza Varghese

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Concrete

Ultra Concrete Age

Prof. A. S. Khanna (Retd., IIT Bombay) on how Ultra-high performance concrete (UHPC) improves strength, durability and lifecycle performance.

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The need of present time is stronger buildings, industrial or common utility buildings, such as Malls, Railway stations, hospitals, offices, bridges etc. For this, there is need of long durable, tough and stable concrete, which could stand under normal and seismic conditions. Tough railway bridges are required for bullet trains to pass without any damage. Railway tunnels, sea-links, coastal roads, bridges and multistorey buildings, are the need of the hour. The question comes, is the normal cement called OPC is sufficient to take care of such requirements or better combination of cements and sand mixtures is required?
Introduction
A good stable building structure can be made with a good quality of cement+sand+water system. Its quality can be enhanced by keeping the density of admixture higher (varies from 30 in normal buildings to bridges etc to 80). Further enhancement in the properties of various cements admixtures is made by adding several additives which give additional strength, waterproofing, flexibility etc. These are called construction chemicals…

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Concrete

NCB Signs MoU With Cement Manufacturer To Boost Construction Skills

Partnership to deliver nationwide training and certification

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The National Council for Cement and Building Materials (NCB) has signed a memorandum of understanding with a leading cement manufacturer to strengthen skill development and capacity building in the construction sector. The agreement was formalised at NCB premises in Ballabgarh and was signed by the Director General of NCB, Dr L. P. Singh, and the head of technical services at UltraTech Cement Limited, Er Rahul Goel. The collaboration seeks to bring institutional resources and industry expertise into a structured national training effort.

The partnership will deliver structured training and certification programmes across the country aimed at enhancing the capabilities of civil engineers, ready?mix concrete (RMC) professionals, contractors, construction workers and masons. Programme curricula will cover material quality testing, concrete mix proportioning, durability assessment and sustainable construction practices to support improved construction outcomes. Emphasis is to be placed on standardised assessment and certification to raise practice levels across diverse construction roles.

Practical learning elements will include workshops, site demonstrations, technical seminars and exposure visits to plants and RMC facilities to strengthen applied skills and on?site decision making. The Director General indicated confidence that a large number of professionals and workers would be trained over the next three to five years under the initiative. The partnership is designed to complement flagship government schemes such as the Skill India Mission and to align training outputs with national infrastructure priorities.

By combining the council’s technical mandate with industry experience, the initiative aims to develop a more skilled and quality?conscious workforce capable of meeting rising demand in infrastructure and housing. NCB will continue to coordinate programme delivery and quality assurance while industry partners provide practical exposure and technical inputs. The collaboration is expected to support long?term capacity building and more sustainable construction practices nationwide.

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Concrete

JSW Cement Commissions Nagaur Plant, Enters North India

New Rajasthan unit boosts capacity to 24.1 MTPA and expands reach

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JSW Cement has strengthened its national presence by commencing production at its greenfield integrated cement plant in Nagaur, Rajasthan, marking its entry into the north Indian market.
With this commissioning, the company’s installed grinding capacity has increased to 24.1 MTPA, while total clinker capacity, including its joint venture operations, stands at 9.74 MTPA.
The Nagaur facility comprises a 3.30 MTPA clinkerisation unit and a 2.50 MTPA cement grinding unit, with an additional 1.00 MTPA grinding capacity currently under development. Strategically located, the plant is positioned to serve high-growth markets across Rajasthan, Haryana, Punjab and the NCR.
The project has been funded through a mix of equity and long-term debt, with Rs 800 crore allocated from IPO proceeds towards part-financing the unit.
Parth Jindal, Managing Director, JSW Cement, stated that the commissioning marks a key milestone in the company’s ambition to become a pan-India player. He added that the project was completed within 21 months and positions the company to achieve its targeted capacity of 41.85 MTPA by FY29.
Nilesh Narwekar, CEO, JSW Cement, highlighted that the expansion aligns with the company’s strategy to tap into rapidly growing northern markets driven by infrastructure development. He noted that the company remains focused on delivering high-quality, eco-friendly cement solutions while progressing towards its long-term capacity goal of 60 MTPA.
The Nagaur plant has been designed with sustainability features, including co-processing of alternative fuels and a 7 km overland belt conveyor for limestone transport to reduce road emissions. The facility will also incorporate a 16 MW Waste Heat Recovery System to improve energy efficiency and lower its carbon footprint.
JSW Cement, part of the JSW Group, operates across the building materials value chain and currently has eight plants across India, along with a clinker unit in the UAE through its joint venture.

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