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News Recycling

Displaying items by tag: Recycling

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Progressive Planet to supply PozGlass to Lafarge Canada

16 March 2023

Canada: Progressive Planet has secured a contract to supply its PozGlass recycled glass-based supplementary cementitious material (SCM) to Lafarge Canada. The cement producer says that it will test the commercial viability of all PozGlass produced at Progressive Planet's Kamloops pilot plant in British Columbia, once the plant commences PozGlass production in 2024.

Published in Global Cement News
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Progressive Planet to build pilot plant in British Columbia

08 March 2023

Canada: Progressive Planet is preparing to build a 3200t/yr pilot plant for its PozGlass product at its headquarters in Kamloops, British Columbia. The company aims to commercialise its process, which produces pozzolan from recycled glass for use in cement or concrete production. The pilot unit will also sequester CO2 released by a gas dryer at the site, from which it will produce sodium carbonate. The pilot plant is expected to go under construction in 2023 and be operational in 2024.

Steve Harpur, the chief executive officer of Progressive Planet, said “With PozGlass, a CleanTech breakthrough from our C-Quester Centre of Sustainable Innovation in Kamloops, we are producing one of many upcoming private-sector solutions that are needed to meet the 2050 Net Zero targets to fight climate change.”

Progressive Planet aims for PozGlass production to be situated at cement kilns, where PozGlass could be mixed with Portland cement at a 50:50 ratio.

Published in Global Cement News
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AWHCL secures Mumbai construction and demolition waste management contract

10 February 2023

India: Antony Waste Handling Cell Limited (AWHCL) has won a US$124m contract for construction and demolition waste management services in Mumbai. Press Trust of India News has reported that the contract covers nine municipal subdivisions of the city and will last until 2044. AWHCL said that the contract will enable it to develop the circularity of cement and concrete within the local economy. It expects to commission 600t/day-worth of waste processing capacity by March 2023. The waste management company expects a recovery rate of 25% recyclable materials.

AWHCL chairman and managing director Jose Jacob said "This sub-segment of solid waste management provides tremendous growth opportunities given the number of infrastructure development projects underway, and the government's push to accelerate the economic growth with infrastructure being one of the important growth pillars."

Published in Global Cement News
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Cambridge Electric Cement commences recycled cement production

08 February 2023

UK: Cambridge Electric Cement (CEC) has launched the two-year trial of its Cement 2 Zero project, aimed at scaling up production of its net zero-CO2, demolition waste-based alternative cement. It aims to produce 20t of the material for use in a low-impact construction project. CEC’s method, developed at the University of Cambridge, is based on the conversion of demolition waste into a slag-forming material within a steel furnace.

Developer Julian Allwood said “By combining steel and cement recycling in a single process powered by renewable electricity, we could supplement the global supply of the basic construction materials to support the infrastructure of a zero emissions world and to enable economic development where it is most needed.”

Published in Global Cement News
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Update on construction and demolition waste, February 2023

01 February 2023

Cemex launched a new waste management division called Regenera this week. Cemex describes Regenera as a “business that provides circularity solutions, including reception, management, recycling, and coprocessing of waste.” The Mexico-based company has a long and leading history with sourcing and using alternative fuels in the cement sector and the new organisation looks set to utilise this experience. What is notable though is how the business is targeting three waste streams: municipal and industrial; industrial by-products; and construction, demolition and excavation waste (CDEW). Bringing the three waste streams together in this way appears to be novel for the heavy building materials sector, particularly the inclusion of CDEW, which we will explore further here.

CDEW is split into fractions, just like the municipal and solid waste streams that end up as alternative fuels at cement plants, but the biggest fractions are generally concrete, followed by bricks. The recycled concrete is then typically used as an aggregate, either in new concrete production or in areas like road construction and earthworks. The use of recycled aggregates (RA) made from CDEW goes back to at least the 1930s in its current form although ‘reusing’ materials from structures such as castles and churches goes back far further. Recycling and reusing CDEW gained a boost in 2020 when the European Union (EU) set a 70% recovery target. However, within the EU the CDEW recycling rates vary considerably and that 2020 target includes the use of CDEW in backfill applications.

In its launch statement for Regenera, Cemex noted that it operates a dock in Paris, where it receives a variety of materials, including construction debris, excavated material and inert soil. These materials are sorted, processed and then transformed into recycled aggregates or organic material used to restore quarries. Cemex then promptly followed up the official launch of Regenera on 30 January 2023 with the acquisition of a majority stake in Shtang Recycle, an Israel-based CDEW recycling company. It added that Shtang Recycle is preparing to build a recycling plant with a production capacity of 0.6Mt/yr of CDEW waste materials. The output from the plant will be used as raw materials for aggregate production.

The focus on CDEW recycling was flagged up at Cemex’s investor event in November 2022. It said that it was targeting a recycling rate of 14Mt/yr of construction and demolition waste by 2030. Other managed waste stream goals included doubling the amount of municipal and industrial waste it manages, to achieve a 50% to fossil fuel substitution rate, and increasing its usage of alternative raw materials and by-products by 30%, thereby eliminating 13Mt/yr of extracted materials.

Cemex is not alone in targeting the CDEW waste sector. Holcim’s recent work in the area goes back to at least 2016 when a recycling unit near its Retznei cement plant in Austria started processing 130,000t/yr of CDEW. It announced in December 2022 that it was setting up a similar recycling centre, also in Austria, at its Mannersdorf cement plant. In October 2022 Holcim acquired Wiltshire Heavy Building Materials in the UK. This company recycles 150,000t/yr of construction and demolition waste into aggregates and concrete. Holcim linked the acquisition to its Strategy 25 target of recycling 10Mt/yr of construction and demolition waste by 2025.

Activity by other cement companies includes the commissioning of a construction waste recycling plant at Gennevilliers in France by CRH-subsidiary Eqiom in April 2022. It was aiming for a target of 50,000t in 2022. In November 2022 Heidelberg Materials agreed to acquire RWG Holding based in Berlin, Germany. Then, in December 2022, it announced a deal to buy Mick George Group in the UK. Both proposed acquisitions are subject to competition authority approval. Heidelberg Materials’ current target is to offer circular alternatives for half of its concrete products by 2030.

The moves by the bigger cement companies into the CDEW sector follow sustainable thinking and the waste hierarchy. Yet the big prize here is to gain a route to dispose of some of their CO2 emissions through recarbonation and this has been flagged up in several net-zero roadmaps for the cement sector such as those by Cembureau and the Global Cement and Concrete Association (GCCA). Holcim has been involved in the FastCarb project in France, running a pilot at its Val d’Azergues cement plant in 2021. Heidelberg Materials has been testing its own process with so-called recycled concrete paste. The development now appears to be that utilising CDEW has entered the sustainability strategies for some of the big cement-concrete-aggregate producers, targets have been set and acquisitions are happening.

For more information on Heidelberg Materials research into concrete recycling read the January 2023 issue of Global Cement Magazine

Published in Analysis
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Lafarge Zement to establish Recycling Centre Mannersdorf

14 December 2022

Austria: Lafarge Zement plans to invest Euro8m in the establishment of the Recycling Centre Mannersdorf at its 1.2Mt/yr Mannersdorf cement plant in Lower Austria. Niederösterreichische Nachrichten News has reported that the facility will process demolition waste into alternative raw materials for use in the cement producer’s operations.

Plant manager Helmut Reiterer said “The Recycling Centre Mannersdorf is of great importance for the construction industry. It enables people to build in a much more environmentally friendly way, increases the recycling rate and strengthens the domestic circular economy.”

Published in Global Cement News
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Heidelberg Materials to acquire concrete recycling company Mick George Group

13 December 2022

UK: Germany-based Heidelberg Materials has signed a deal for the acquisition of Mick George Group, the leading concrete recycling company in the East Midlands and East of England. Mick George Group’s 40 sites span bulk excavation, earthmoving and demolition services and demolition waste removal and management, as well as ready-mix concrete and aggregates distribution.

Heidelberg Materials Western and Southern Europe director Jon Morrish said “With the acquisition of Mick George, we are clearly moving towards establishing a truly circular materials and services offer in our UK business. I warmly welcome all 1000 Mick George employees to Heidelberg Materials and look forward to further developing the business together.”

Heidelberg Materials aims to offer circular alternatives for half of its products by 2050.

Published in Global Cement News
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Cemex opens Tunjuelo Circularity Centre

13 December 2022

Colombia: Cemex has announced the launch of the Tunjuelo Circularity Centre at its former Tunjuelo quarry near Bogotá. Having rebuilt parts of the 50m-deep quarry with demolition waste, Cemex will now work on its ecological restoration, while continuing to receive excavation waste for reconstruction of the ground. It will meanwhile divert demolition waste deliveries for recycling in aggregate production. In Bogotá, Cemex has launched an initiative for urban construction partnerships in collaboration with local authorities. It will also collect municipal solid waste (MSW) there for use in its cement production and collect its used plastic cement bags for recycling in building materials production.

Cemex’s Colombia and Peru president Alejandro Ramírez said "This is a pioneering model for Cemex in the construction materials industry globally, which we aim to position as a benchmark for circularity within the sustainable development of large cities in Colombia and the world. A piece of land that supplied materials for Bogotá's development for decades has received construction and demolition waste for its redevelopment and was transformed into a green area to the south of the city, an epicenter of the circular economy and an opportunity for urban development for the capital city of Colombia." 


Published in Global Cement News
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Hanson's Ribblesdale cement plant carbonates recycled concrete paste with CO2 emissions

22 November 2022

UK: Hanson has announced a 'carbon capture breakthrough' in its use of recycled concrete paste (RCP) in the wet scrubber of its Ribblesdale cement plant in Lancashire. In under 30 minutes, 15t of RCP was able to capture 1.5t of CO2 from the plant's flue emissions. Carbonated RCP is suitable to replace limestone in cement production.

Hanson's sustainability director Marian Garfield said “The trial was carried out with our parent company Heidelberg Materials’ research and development team, and marks another important milestone in our carbon capture journey."

Published in Global Cement News
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Ecocem becomes founding partner of Cleantech Scale-Up Coalition

31 October 2022

Europe: Ireland-based Ecocem and seven other European sustainable technology companies have launched the Cleantech Scale-Up Coalition, with the backing of green investment funding network Breakthrough Energy. The coalition will work to contribute to European climate neutrality, energy autonomy and industrially competitiveness. Other participants' fields include carbon capture, green hydrogen technologies, transport electrification, batteries and recycling.

Ecocem's managing director Donal O’Riain said “Scalable, low carbon cements, which can decarbonise the European cement industry by 50% by 2030, are ready to deploy today. To do so, they need to be rapidly industrialised. This coalition, which allows Ecocem to combine forces with other world-class companies, will enable our ambition by working to remove the barriers to an accelerated decarbonisation of European, and global, industry.”

Published in Global Cement News
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