Displaying items by tag: circular economy
Interbeton launches Velter circular ready-mix concrete
25 October 2024Greece: Titan Cement Group subsidiary Interbeton has launched Velter, a circular, 30% reduced-CO2 ready-mix concrete. The product comes with a Type III environmental product declaration from Eurocert.
Director of concrete operations Christoforos Voulgaris said "This new product line gives engineers, architects, builders and investors the opportunity to differentiate their projects with improved durability and a meaningful contribution to mitigating the effects of climate change.”
Study proves scope for Summit County, Colorado, to recycle 33% of construction and demolition materials
21 October 2024US: A study by Resource Recycling Systems found that 33% of construction and demolition materials (CDM) entering landfill in Summit County, Colorado, could be effectively diverted into CDM recycling. Concrete and aggregates were among the 11 materials included in the study. Local press has reported that county authorities aim to reuse or recycle 25% of CDM generated locally by 2028, and 50% by 2035. Landfill capacity will run out in 2078.
CDM constituted 30% of Summit County’s landfill intake during the study period.
Holcim and Climate Pledge Fund co-invest in Paebbl and 14Trees
10 October 2024Sweden/Switzerland: Holcim has partnered with US-based retail company Amazon’s Climate Pledge Fund to invest in CO2-sequestering concrete filler developer Paebbl and 3D printers 14Trees. The Paebbl investment is part of a US$25m Series A funding round jointly led by Germany-based venture capital firm Capnamic. Holcim says that the new investment will help Paebbl to scale up. Meanwhile, 14Trees, which is a joint venture of Holcim and British International Investment, will also scale up its operations to begin 3D printing larger buildings, including data centres.
Paebbl co-CEO Marta Sjögren said "We are thrilled to welcome first movers in their respective fields, Amazon and Holcim, as first commercial partners to bring our vision to market. This funding round enables us to take even bolder steps in our mission to make the built environment a cornerstone of the decarbonised economy."
14Trees managing director Francois Perrot said "We are excited to count Amazon and Holcim as investors in 14 Trees, to take our successful 3D-printed technology from homes and schools to data centres, to deliver low-carbon and high-performance buildings."
Holcim’s chief sustainability officer Nollaig Forrest said "By investing with Amazon’s Climate Pledge Fund into 14Trees and Paebbl, we can scale up these pioneering technologies to push the boundaries of sustainable building, from 3D printing to making concrete a carbon sink."
Fox Brothers to merge with JA Jackson following acquisition by Stellex Capital Management
26 September 2024UK: US-based Stellex Capital Management has acquired ready-mix concrete producer and haulier Fox Brothers. Fox Brothers’ portfolio also includes aggregates recycling, quarrying and muck-away services, under subsidiaries including B&W Plant Hire & Sales, Monks Training Services, Tipworx and Woods Waste. Following its acquisition by Stellex Capital Management, Fox Brothers will now merge with ready-mix concrete and aggregates producer JA Jackson.
Néolithe supplies Anthropocite circular aggregates for Marseille bus depot project with Hoffmann Green Cement Technologies
11 September 2024France: Circular aggregates producer Néolithe has partnered with Hoffmann Green Cement Technologies and Groupe GCC to produce a fuel loading slab for a temporary bus depot in Marseille. The slab will be made of Hoffmann Green Cement Technologies’ H-UKR clinker-free cement and Néolithe’s mixed circular materials-based Anthropocite aggregates. The resulting slab will serve as a test for the use of H-UKR concrete in future Groupe GCC projects.
The partners say that a mix of H-UKR cement with 20% Anthropocite reduces CO₂ emissions by 63% compared to CEM II/A cement-based concrete produced using conventional aggregates, to 62kg CO₂eq/m³.
Groupe GCC executive vice-president Patrick Dubourg said "This project perfectly illustrates one of GCC's key priorities: implementing sustainable solutions. The work we've been doing for several years with Hoffmann Green Cement Technologies enables us to take tangible action in this direction, and the partnership with Néolithe enables us to take a further step in the direction of decarbonisation, an essential issue for construction.”
Laurence Hemerit, infrastructure director at customer Marseille Metropolitan Transport Authority (RTM), said "RTM found GCC's proposal very interesting in that it enabled us to carry out a large-scale, long-term comparative test to assess the qualities of low-carbon concrete. Our temporary bus storage site was therefore the ideal candidate for this experiment."
Syracuse tests recycled glass in concrete for infrastructure
09 September 2024US: The City of Syracuse, New York, is pilot-testing a new method of infrastructure construction by incorporating recycled glass as a cement substitute in concrete, reports CNY Central newspaper. A patented process by recycling company KLAW Industries crushes glass into fine powder, reportedly replacing 20% of the cement in concrete from recent projects, including upgrades to pavements. The approach follows successful implementations in the City of Binghamton and by the New York State Department of Transportation, with support from SUNY College of Environmental Science and Forestry and Clarkson University.
Department of Public Works Commissioner Jeremy Robinson said "We’re always looking for the most effective and sustainable approaches to constructing and maintaining city infrastructure. Based on the results of this testing, we can determine if the solution can be expanded to more sidewalks and, possibly, other applications.”
Cemex USA delivers Vertua reduced-CO2 concrete for Mission Rock project in San Francisco
09 September 2024US: Cemex USA has supplied 42,800t of its Vertua reduced-CO2 concrete to property developer Tishman Speyer for Phase 1 of the Mission Rock mixed-use development in San Francisco, California. Vertua concrete offers enhanced sustainability for construction projects compared to conventional concrete through its reduced emissions, energy efficiency, use of recycled materials, water conservation and design optimisation. Phase 1 of the project involved the construction of foundations for two blocks of apartments and an office block. Contractor Webcor first broke ground on the project in 2020.
Cemex USA West Regional President Francisco Rivera said "We are excited to contribute to a forward-thinking project such as Mission Rock by delivering our eco-conscious building materials, advancing sustainability efforts in San Francisco.
Cemex acquires majority stake in RC-Baustoffe
04 September 2024Germany: Cemex has acquired a majority stake in the Berlin-based recycling company RC-Baustoffe to enhance its circularity business Regenera. The company processes construction, demolition and excavation materials. The acquisition integrates RC-Baustoffe with Regenera, allowing the facility to process up to 400,000t/yr, which will be turned into repurposed aggregates for concrete production.
CEO of Cemex, Fernando González, said “With acquisitions such as this, Cemex continues to strengthen its commitment to circularity through Regenera as well as promoting the world’s transition to a more circular economy. Construction and demolition materials account for more than 30% of global ‘waste’ streams and reintegrating these materials into the construction value chain can reduce the use of virgin raw materials."
Heidelberg Materials Poland inaugurates Katowice construction and demolition materials recycling plant
25 July 2024Poland: Heidelberg Materials has inaugurated its new construction and demolition materials (CDM) recycling plant at Katowice, Silesia. The plant will use a patented crusher to separate and sort 100t/hr of CDM. It will then recycle the materials in new concrete using its ReConcrete circular concrete production technology.
Chief sustainability officer Nicola Kimm said "Thanks to our strong commitment to continuous innovation, we are now introducing a revolutionary and commercially viable technology combining circularity with decarbonisation on our path to net zero. Innovations like this help to accelerate our transformation and highlight our ambition of closing the loop offering circular alternatives for 50% of our concrete products by 2030.”
Central Environment obtains government grant for construction and demolition waste recycling operations
18 July 2024New Zealand: Recycling company Central Environmental has secured a US$972,000 grant from the Ministry for the Environment. Local press has reported that the grant will go towards a US$2.43m expansion of its construction and demolition materials recycling operations. The company says that this will allow it to expand its footprint across southern and central North Island.
Managing director Ian Butcher said that the company has diverted 60 – 70% of parent company Central Demolition’s waste from landfill. It processes 80,000t/yr of concrete into materials for roadbuilding.