Displaying items by tag: Sustainability

Sweden: Researchers at Chalmers University of Technology, Sweden, have developed a method to simplify the construction of textile-reinforced concrete structures, a move that is expected to lead to more environmentally friendly infrastructure like bridges, tunnels, and buildings. The new technique addresses the high carbon footprint of cement.

This innovation, involving carbon fibre textiles as a replacement for steel reinforcement, enables lighter structures with reduced cement usage, thereby lowering the overall carbon impact. Karin Lundgren, Professor of Concrete Structures at Chalmers Department of Architecture said "A great deal of the concrete we use today has the function to act as a protective layer to prevent the steel reinforcement from corroding. If we can use textile reinforcement instead, we can reduce cement consumption and also use less concrete, thus reducing the climate impact."

The research is detailed in a paper titled 'Textile reinforced concrete members subjected to tension, bending, and in-plane loads: Experimental study and numerical analyses', which was published in the Construction and Building Materials journal. The study, a collaborative effort between Chalmers University and Gdansk University of Technology in Poland, is supported by the Swedish Research Council.

Peru: Grupo Gloria subsidiary Yura plans to build a solar power plant in Yura, Arequipa. The plant will have a peak power of 31MWp and a nominal power of 27MW. The installation involves a 1.3km-long, 30kV transmission line. Gestión News has reported that the project is intended to reduce the costs associated with the company’s cement production.

Sweden: Umeå University is part of the ELECTRA project, a €20m EU initiative aimed at advancing green transition in cement and lime production through electrified processes. This project, involving global industry leaders, is funded under the Horizon Europe initiative and led by VTT Technical Research Centre of Finland.

The Department of Applied Physics and Electronics at Umeå University has collaborated with the Swedish quicklime and cement industry since 2007. Matias Eriksson, director of the Centre for Sustainable Cement and Quicklime Production at Umeå University, said “This is an important project. It is the first Horizon Europe project we are participating in," He continued "We are pleased with the confidence the European Commission, heavy materials industry and other research performers show in our work. ELECTRA can play an important role in the industry's green transition, first and foremost in Sweden and the rest of Europe. But because the technology and the industry are global, the effects can be extensive."

Sweden: Alternative cement producer Cemvision has concluded its seed funding round, the largest in the green cement sector to date, according to the company. Participants included BackingMinds, Polar Structure and Zacua Ventures. The fund raised €10m, which the company says will contribute to its short-term growth. Cemvision announced its first commercial supply contract for its Re-ment alternative cement in December 2023.

CEO Oscar Hållén said “This investment will accelerate our near-future operations, right before we make the next jump, which is not too far away. Having met and retained interest from venture capitalists worldwide, we concluded some of the very best ones were right around the corner, and we are delighted to have them doubling down on Cemvision. Furthermore, Zacua Ventures’ global understanding of the green transition of the built environment is the most impressive we’ve ever come across.”

Italy: Scientists Gregory Chass and Kun Tian have developed a sustainable concrete from wet waste materials through their company Mesoscale Engineering Halcyon. This 'green concrete' concept was conceived in Garbatella and will first be tested on the district's pavements. The concrete, made by combining and recycling industrial CO₂ emissions with brine from saltworks, is part of the Clean Energy Transition Partnership. It is also central to the BUCK$$$ project, led by Kun, focusing on carbon capture and utilisation. This project, with €2.54m in funding, involves 13 partners from seven countries.

This innovative concrete arises from 'mineralised CO₂', which is similar to mollusc shells made of calcium carbonate, as well as materials derived from saltwork brine, desalination, and industrial wastewater. Both currently underused products are expected to become crucial in the cement and concrete industries, particularly in Italy.

US: Furno Materials completed an oversubscribed US$6.5m seed funding round on 13 March 2023. Subsequently, the start-up unveiled plans for its Furno Brick carbon-neutral modular cement plant, which can use a variety of gaseous fuels. The plant scales on demand, drastically reducing the barrier to entry for local or small-scale cement production.

Furno CEO Gurinder Nagra said “At Furno, we have the ability to produce ordinary Portland cement now, to adapt to a range of gas-based fuels and materials innovations as they emerge and to meet demand where it exists, while still abiding by a shifting regulatory landscape. Our mission is to go the distance by innovating at the heart of cement production and operating as a complement to other technological developments in the cement space. Our cement far exceeds ASTM International standards, a bare-minimum quality threshold. While most companies tout meeting these standards and stop there, we have continued to refine our process and are on target to surpass the even higher commercial requirements set by significantly-sized customers eager for our solution.”

India: ACC and Ambuja Cements' Geoclean has launched two new facilities for sustainable waste management. The Ambuja Marwar pre-processing and co-processing facility in Rajasthan can convert 220,000t/yr of refuse into alternative fuel, while the ACC Jamul co-processing facility will process an additional 120,000t/yr.

The Ambuja Marwar facility, in collaboration with the Ambuja Marwar Farmer Producer Organisation, aims to source 50,000t/yr of agricultural waste from local farmers. This initiative will also increase the plant's thermal substitution rate to 15%. Similarly, the ACC Jamul facility will enhance its thermal substitution rate to 10%, reducing CO₂ emissions through the co-processing of waste in the cement kiln.

Italy: Heidelberg Materials Italy, formerly Italcementi, has entered into a seven-year supply agreement with Ox2. Under the deal, Ox2 will sell up to 70% of the energy generated at the Stornarella wind farm in Foggia. The farm was developed in partnership with Nuveen Infrastructure.

The Stornarella wind farm will be constructed in 2024. Once operational, it will provide an average of 37 - 51GWh/yr of clean energy from 2025 to 2032. Nuveen Infrastructure has purchased the wind farm, which will feature six turbines with a total installed capacity of 27MW and an estimated output of 73GWh/yr.

Stefano Gallini, CEO of Heidelberg Materials Italy, said "Energy is a fundamental component of our industrial process and represents one of the main levers of decarbonisation for the entire cement sector. The electrical component can also contribute significantly to this purpose, and we have identified reliable partners like Ox2 and Nuveen to accompany us on this journey."

Colombia: Cemex Colombia plans to source 42,900MWh/yr of renewable electricity for its Caracolita cement plant in Tolima from Celsia's upcoming 20MW solar power plant in Ibague. Upon the solar plant’s commissioning in 2025, this initiative will account for 25% of the cement plant's electricity needs.

Alejandro Ramirez, president of Cemex Colombia and Peru, said "Supplying our main cement plant in Colombia with solar energy will be a decisive step in our strategy to take advantage of renewable sources for cement production in Colombia."

Ricardo Sierra, CEO of Celsia, said "The company has 17 operational solar power plants totalling more than 300MW of installed capacity in Colombia." He added "Celsia’s target is to reach 1GW of photovoltaic projects under construction and development, some of which will deliver power to the grid, and others will benefit various industrial companies."

Greece: Titan has endorsed the Antwerp Declaration, advocating for an European Union (EU) Industrial Deal complementing the EU Green Deal, to bolster the European economy's sustainable growth and competitiveness. Resulting from a summit in Antwerp, Belgium on 20 February 2024, the declaration has gained support from over 630 businesses across 20 sectors. It highlights the necessity of elevating competitiveness, ensuring a level playing field to counter unfair competition, and prioritising infrastructure development in energy, digital technologies, CCUS, and materials recycling.