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News Displaying items by tag: UK

Displaying items by tag: UK

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UK government to invest Euro22.8bn in carbon capture projects

17 March 2023

UK: The UK government has committed to investments worth Euro22.8bn in early deployments of carbon capture technology. It will announce a shortlist of new projects for deployment later in March 2022.

The government said "This unprecedented level of funding for the sector will unlock private investment and job creation across the UK, particularly on the east coast and in the North West of England and North Wales. It will also kick-start the delivery of subsequent phases of this new sustainable industry in the UK."

Ireland-based Ecocem responded to the budget with a call for funding for more short-term areas besides carbon capture. It said these will be essential in order for the UK cement and concrete industry to reach its 45% decarbonisation target by 2030. The slag-based cement products company called for funding for low-clinker technologies which have already been developed and can be rolled out at scale before 2030, until carbon capture becomes a 'scalable, viable option.'

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Teesside University working on steel slag project with Material Evolution

22 December 2022

UK: Teesside University is working with a number of partners, including Material Evolution, on developing a new type of concrete using steel slag. The ‘Mevocrete’ project has a total budget of Euro8.6m and it received around Euro3.5m funding from the Innovate UK scheme. It intends to build a full scale on-site unit for cement production using waste steel slag at the Teesworks industrial zone. Researchers from the university’s School of Computing, Engineering & Digital Technologies will analyse the steel slag and its chemical composition and measure how efficient it is at sequestering carbon. The projects aims to manufacture a concrete that emits up to 85% less CO2 compared to a traditional concrete made from Ordinary Portland Cement (OPC).

Material Evolution is the lead industrial partner on the project. Other partners include Celsa Manufacturing UK, LKAB Minerals, Nanomox, Enursan, Retaining UK, Geocast, Playfair Capital and ZTL Contracting.

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UK universities patent zero-carbon clinkerless cement

18 May 2022

UK: A team of researchers from six UK universities has filed a patent for a clinkerless cement product called Cambridge Electric Cement. Local press has reported that the project, called UK Fires, saw researchers successfully produce the cement using renewable power from recycled cement powder and ground granulated blast furnace slag (GGBFS). Following its successes, UK Fires has obtained a further Euro2m in funding from the UK Engineering and Physical Sciences Research Council (EPSRC) to continue its work into the range of concrete wastes suitable for use in Cambridge Electric Cement production.

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SteelPhalt launches carbon-negative asphalt product

29 April 2022

UK: SteelPhalt has launched a carbon-negative asphalt product called SteelSurf ECO+. The asphalt use 95% recycled steel slag with a lignin binder made from trees. The kraft lignin is supplied by GautamZenUK in collaboration with Stora Enso. It is used as an alternative to bitumen, which previous SteelPhalt asphalt products used instead.

"In our journey to become the world's most sustainable asphalt supplier, this is a huge step forward,” said Julian Smith, SteelPhalt Strategic Growth Director. “This product is an example of what our team’s collective passion for innovation and sustainability can deliver, while making the world a greener place.”

Steelphalt is a part of the Harsco Environmental division of US-based Harsco.

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Tarmac and Align test concrete with potential to use over 90% ground slag

04 March 2022

UK: Tarmac has demonstrated a new concrete product using a high proportion of slag with Align, the joint venture building part of HS2, a new high-speed railway line. It demonstrated the potential to use very high ground granulated blast furnace slag (GGBS) content in excess of 90%, as an alkali activated cementitious material conforming to BS EN197, the standard for cementitious materials allowed to be used in ready mixed concrete, to significantly reduce carbon emissions, whilst still producing a quality finish and allowing normal construction and demoulding times.

Demonstration and testing at full scale used one of three Tarmac concrete batch plants at a Chalfont Lane construction site in Hertfordshire. A structural slab forming part of the new viaduct pre-cast factory and a vertical wall were poured. Tarmac says that the mixes, designed to Align concrete specification, exceeded expectations in both fresh and hardened properties, and showed that the new concrete can be produced in normal concrete plants and placed via mixer truck and by skip with a tremie pipe. The new low carbon concrete has a carbon footprint following industry BSI PAS2050 calculation rules that gives a 62% reduction in CO2e per cubic metre of concrete, compared to a standard CEM I concrete, meeting the same specification in the same raw materials. The footprint covers all aspects of the concrete production and supply with no carbon off-setting applied, delivering an actual footprint of 133kg/m3 CO2e. This represents a saving of 220t CO2e for every 1000m3 produced.

“Together we’ve shown this new concrete is fit for purpose in slabs and walls, with good repeatability and works with standard production and construction methods. This product is a great step along the industry zero carbon routemap, and the demonstration will help accelerate adoption of this new concrete,” said Robert Gossling, head of commercial engineering solutions at Tarmac.

Tarmac is supplying concrete for the construction of the Central 1 section of HS2 Phase One that is being built by Align. This includes a 22km section of high-speed rail infrastructure incorporating a 3km viaduct across the Colne Valley, a 16km twin-bored tunnel, and five vent shafts handling both intervention and tunnel ventilation facilities.

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Ecocem starts first pour Exegy ultra-low CO2 concrete in the UK

12 January 2022

UK: Ecocem and construction company Taylor Woodrow have conducted the first pour of the Exegy ultra-low CO2 concrete at waste management site in London. The mix used on the project is reported to reduce the carbon footprint by up to 70% when compared to traditional concrete. Cemex also collaborated on the project by producing the concrete used for the pour.

The concrete product was developed by Ecocem and Vinci Construction, using Ecocem Ultra, as part of Vinci Construction’s ultra-low carbon concrete range. Ireland-based Ecocem is a producer of cement and additives made using ground granulated blast furnace slag (GGBFS). Exegy is already being used at a pilot site of the Grand Paris Express and in the construction of the Athletes’ Village in Paris for the 2024 Summer Olympic Games.

Micheál McKittrick, managing director, Northern Europe, Ecocem, said, “Our Ecocem Ultra technology is already being used at scale in France, and we’re excited to now see it being adopted in the UK.” He added, “The cement and construction industries are developing and deploying a range of emission reduction technologies to help the UK Government reduce emissions by 78% by 2035, and reach net zero by 2050, and Ecocem will add a further dimension to these efforts.”

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Tarmac and Associated British Ports sign new slag loading contract in Wales

06 January 2022

UK: Tarmac has started a long-term slag stevedoring contract with Associated British Ports (ABP) at Port Talbot in Wales. The new arrangement at Port Talbot will see ABP load 300,000t/yr of ground granulated blast furnace slag (GGBFS). The slag will then typically be used in concrete production elsewhere in the UK. The agreement follows other partnerships between Tarmac and ABP at existing ports in Cardiff, Swansea, Newport, Garston (Liverpool), Southampton and Ipswich.

Andrew Harston, ABP Wales and Short Sea Ports director, said, “ABP continues to invest in its ports’ infrastructure and services, as well as sustainability measures, and we are delighted to win this new contract with Tarmac, which shares our commitments to the highest standards of health and safety, and sustainability.”

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Hanson exceeds 230,000t of ground granulated blast furnace slag delivered to site of upcoming Hinkley Point C power plant

22 September 2021

UK: Hanson has delivered its 10,000th load of Regen ground granulated blast furnace slag (GGBFS) from its Port Talbotsite in Neath Port Talbot to the building site of the upcoming Hinkley Point C power plant in Somerset. The GGBFS will be used in concrete production there. The latest batch brings the company’s total deliveries to the project to over 230,000t of GGBFS.

Head of nuclear operations Stewart Cameron said “Around 200,000t of CO2 has been saved in reaching this milestone Regen GGBS load. It is a credit to all those involved as we continue to meet the standards expected of this high-profile project.”

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Slag cement being used for seawall railway project in Southern England

01 July 2021

UK: Hanson’s Regen Ground Granulated Blast furnace Slag (GGBS) product is being used by BAM Nuttall and Network Rail in the first and second phase of building a new sea wall in Dawlish, Devon. So far 4600m3 has been supplied to the project that is intended to protect a railway line from the sea. The bespoke mix being utilised for the project uses Regen GGBS to create a pumpable low carbon concrete that is strong enough to withstand erosion, waves and storm winds while reducing the amount of carbon generated by two-thirds.

“From the earliest phase of this project, we have considered how this scheme can limit its environmental impact without compromising the strength and resilience of the structure. The final design uses piles buried deep in the bedrock to create stability for the structure. Those piles are protected by prefabricated facing panels created off-site and reinforced by concrete poured in behind the visible section of wall,” said Jack Brookes, site agent for BAM Nuttall.

The project has also had to face difficult logistical, technical and operational challenges created by pouring large amounts of high specification concrete up to 200m through the night in very short tidal windows. Hanson plans to supply a further 4500m3 of concrete to the project.

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DB Group and Wolfenden Concrete to launch Supa Green cement-free agricultural concrete products

05 February 2021

UK: DB Group and Wolfenden Concrete have announced the upcoming launch of Supa Green, a range of cement-free agricultural concrete products produced using DB Group’s Cemfree technology. The partnership says that this assures a 62% maximum CO2 reduction compared to concrete products made with Ordinary Portland Cement (OPC). It further says that the products have increased acid resistance. Cemfree is a low carbon concrete made using ground blast furnace slag (GGBS) and pulverised fly ash.

DB Group chief executive officer Wayne Zakers said, “DB Group’s mission is to improve the durability and sustainability of construction, working most intimately with our innovative partners. Working with Wolfenden will enable us to embed that innovation within the agricultural sector and to extend the benefits of our Cemfree technology to dairy farmers across the UK. The testing of Supa Green products has proven extremely successful, and so we look forward to the launch of the range, and to helping Wolfenden’s customers meet and exceed environmental targets.”

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