Displaying items by tag: Alternative raw materials

US: Gabriel Carrero has taken on the role of Chief Commercial Officer (COO) at Carbon Limit, developer of the CO₂-sequestering concrete additive CaptureCrete. Carrero previously served as Senior Vice President, Sales & Marketing at fellow additive developer CarbonCure, and has held directorial roles in multiple companies in the cement and concrete chemicals innovation space, including working as COO of Sysdyne Technologies and NITROcrete and as Global Director, Specialty Construction Chemicals at GCP Applied Technologies. Carrero holds a Mechanical Engineering degree from the Centre Technological University (UNITEC) and an MBA from the University of Carabobo, both in Venezuela.

Serbia: Lafarge Serbia is set to build a new cement plant in Ratari near Obrenovac, which will utilise 1Mt/yr of ash from the nearby Nikola Tesla B power plant as a raw material in cement production, reports Balkan Green Energy News. This €110m investment marks Serbia's first cement plant built next to a power plant to harness ash directly from the source and address the country’s problem of ash accumulation in dumps.

CEO of Lafarge Serbia Dimitrije Knjeginjić said "Fly ash cannot be used in the cement or concrete industry, or many other industries, without prior processing. This is exactly what the Ratari plant will be dealing with. We will grind, classify and select 1Mt/yr of ash to produce new construction materials."

Australia: Zeolite, kaolin and metakaolin producer Zeotech has appointed James Marsh as its new CEO, effective from 9 September 2024. Current CEO Scott Burkhart will then transition to chief operating officer. The appointment is intended to support Zeotech’s entry into large-scale production of high reactivity metakaolin for use in cement and concrete.

Marsh is a director of Australian Kaolin. He previously worked as executive director sales and marketing at Andromeda Metals, after holding managerial roles at multiple minerals companies. He has a bachelor’s degree in Chemistry and Physics from the University of the West of England, UK.

Managing Director Peter Zardo said "James' technical experience in the industrial mineral and cement industries, especially metakaolin, will be pivotal in accelerating Zeotech's goal of becoming a significant supplier of premium supplementary cementitious materials. Queensland-based leadership is critical to achieving the Company's objectives as we ramp up work programmes and industry engagement, and James will play an essential hands-on role in executing Zeotech's strategy."

James Marsh said "I'm excited to join Zeotech at a crucial stage of the company's strategy, where I can utilise my experience and connections to make it a significant player in decarbonising the construction industry."

China: Eaton and Langham hotels have collaborated with Green Island Cement to transform 8t of oyster shells into a sustainable cement alternative, sourcing 80% of the required limestone for cement.

Amie Lai Gor, general manager of sustainability at Great Eagle Holdings, parent company of the two hotels, said "We brought together like-minded partners to repurpose oyster shells as a sustainable raw material alternative for cement production. Our goal is to encourage more hotels and restaurants to participate, diverting more discarded oyster shells from landfills through upcycling.”

Raymond Cheung Wai-man, division manager at Green Island Cement, highlighted past challenges of separating the shells from impurities like mud and residual meat, which initially deterred the project.

Lai Gor added that future plans include working with local universities to assess the carbon reduction potential of substituting limestone with oyster shells in cement production. Despite the higher costs—tenfold compared to traditional limestone—Cheung believes that scaling up could significantly lower expenses.

Philippines: Holcim Philippines will invest US$6.5m to upgrade its La Union plant and increase the use of alternative fuels and raw materials to 40%. The project will be implemented by Sinoma CBMIPH Construction and will be completed by late 2025, reports the Manila Bulletin.

Nicolas George, Holcim Philippines president and CEO, said the investment aims to reduce CO₂ emissions, promote recycling, support local waste management and provide income for northern Luzon farmers, who will supply biomass residues as alternative fuels.

General manager Zeng Youbing of Sinoma CBMIPH Construction said “This marks the third collaboration between Sinoma CBMIPH and Holcim Philippines since 2021. We are honoured to contribute to Holcim Philippines' decarbonisation and sustainability goals.”

Switzerland: Holcim has acquired recycling, ready-mix concrete and aggregates company Cand-Landi Group. The company employs 250 people across its operations in Western Switzerland. Holcim plans for Cand-Landi Group to supply alternative raw materials and fuels for use at its Eclépens plant. It says that the acquisition will increase its recycling capacity of construction and demolition materials by 100,000t/yr.

Holcim CEO Miljan Gutovic said "The acquisition of the Cand-Landi Group will advance decarbonisation and circularity in Switzerland, a lighthouse market for innovation at Holcim. I look forward to welcoming all 250 employees of the Cand-Landi Group and investing in our next chapter of growth together."

Germany: France-based Fives has won a contract to build a 50t/day clay calcination unit at Rohrdorfer’s Rohrdorf cement plant in Bavaria. The unit will integrate into the plant’s clinker line in order to allow it to test the production of limestone calcined clay cement with up to 40% reduced CO₂ emissions. Fives’ clay calcination unit uses a flash calcination process, based on a three-stage preheater, flash calciner and decolourisation system.

Rohrdorfer’s Net Zero Emissions Labs team is responsible for the project to decarbonise the Rohrdorf cement plant by 2038. Its managing director Helmut Leibinger said “After a detailed technical review, we decided that the flash calciner with an integrated clay calcination unit from Fives FCB was the best solution in terms of reliability, efficiency and colour control. We are confident that the unit will be essential in moving forward on our pathway to net zero.”

US: St Marys Cement won three national awards at the Slag Cement in Sustainable Concrete Awards 2023. The producer won the awards for supplying its slag cement for the construction of Wixom Assembly Park in Wixom, Michigan; of 333 North Water in Milwaukee, Wisconsin, and of Excellerate Manufacturing in Appleton, Wisconsin.

Australia: The Australian federal government has granted Adbri US$32.5m for a new front-end engineering and design study at its Birkenhead cement plant. The study will assess the possible installation of a new vertical roller mill and post-production blending system at the plant. InDaily News has reported that the proposed upgrade will increase the plant’s production capacity and help to expand its range of reduced-CO₂ cements. The funding falls under the government’s US$260m Critical Inputs to Clean Energy programme, which aims to help decarbonise the Australian economy by 2050.

CEO Mark Irwin said “With the Commonwealth’s support we have the potential to further accelerate the decarbonisation of our operations and products.”

UK: Heidelberg Materials UK has opened a new circular materials hub at its Appleford depot in Oxfordshire. The site will recycle construction waste for use in low-CO₂ building materials. The move advances the company’s strategy to conserve natural materials and support the circular economy.

Recycling managing director James Whitelaw said “Recycling, reusing and reducing the use of primary raw materials is crucial to reaching net zero. Our network of recycling hubs will allow us to provide the most sustainable products to our customers through circularity and innovation to enable building more with less.”