Displaying items by tag: UK

Kenya: Holcim has announced the successful completion of the largest 3D-printed affordable housing to date through 14Trees, its joint venture with British International Investment, the UK’s Development Finance Institution (DFI) and impact investor. The 3D printing of the 10 housing units in Kenya’s Mvule Gardens project was made possible with TectorPrint, Holcim’s 3D printing ink product, produced in Kenya for the first time. The project’s advanced sustainability profile has attained an EDGE Advanced sustainable design certification by IFC, the World Bank's development finance institution, which recognises resource-efficient buildings with the potential to be zero-carbon. It is the first time a 3D-printed housing project has attained this certification.

François Perrot, managing director of 14Trees, said “With 3D printing, you can solve two problems at once. You can build faster and with better cost efficiency, which will help make affordable housing a reality for the majority. In addition, you can build with less materials, which preserves the resources of the planet for future generations.”

Miljan Gutovic, Region Head for Europe at Holcim, added “I am very proud of the work done by 14Trees in Africa, where their innovations in 3D printing technology are accelerating affordable and sustainable building. I look forward to 14Trees replicating these successes in Europe and other parts of Africa in the very near future.”

UK: Carbon Re and A³&Co have signed a strategic partnership agreement to sell cement producers products to optimise production processes to reduce operational costs and carbon emissions. Carbon Re says that its Delta Zero industrial decarbonisation software product can cut fuel use by up to 10% and CO₂ emissions by up to 20% and has been piloted in cement plants in three continents. The product uses a machine learning approach to model a cement plant’s production environment and optimise processes for low CO₂ output and fuel use with no capital expenditure. A³&Co is a strategic and technical consulting company that is focused on the cement sector.

Sherif Elsayed-Ali, the chief executive officer and co-founder of Carbon Re, said "Our technology is already having a huge impact on some of the world's most energy-intensive industries. This strategic partnership with A³&Co will enable even more cement producers to benefit from the operational savings offered by AI as they tackle the challenge of cutting carbon emissions and rising fuel prices."

Cement 2 Zero (C2Z) has officially launched in the UK this week. The project is an industrial scale pilot of the Cambridge Electric Cement (CEC) process. The Materials Processing Institute will lead on this stage with two-year funding of around Euro7m provided by UK Research and Innovation (UKRI). Partners include the University of Cambridge, Atkins, Balfour Beatty, Brewster Brothers, Celsa Group, Day Aggregates and Tarmac.

CEC’s method uses recycled concrete paste in place of lime-flux in steel recycling. Slag is formed as the steel melts and this is then used in place of clinker to make more cement. This way of making cement cuts out the decarbonisation of limestone step from conventional clinker production. If renewably-sourced electricity is used to power the heating and grinding parts of manufacture, then cement production in this way could potentially cut out most of its CO₂ emissions. The first phase of trial melts by C2Z will be conducted by the Materials Processing Institute using a 250kg induction furnace and this will be scaled up to 6t in an electric arc furnace (EAF). Later, industrial scale melts will be tested in Celsa Steel's EAF in Cardiff, Wales.

CEC is taking a similar approach to HeidelbergCement with its research into using recycled concrete paste. However, HeidelbergCement says it is using the paste to help capture CO₂ in an enforced carbonation step it is testing at cement plants. It too though wants to create a secondary cementitious material (SCM) afterwards. There are also links here to construction and demolition waste and electric cement kilns as covered by Global Cement Weekly previously. The latter is different with regards to what CEC is doing because it is recycling concrete waste to produce an SCM (slag) rather than using an electrically powered kiln to make clinker from limestone. Coolbrook, VTT and the like have had to build electric kilns effectively from scratch or adapt technology from elsewhere for their approaches whilst CEC appears to be about to use existing EAFs in its industrial scale pilot.

Figure 1: Projection of how the Cambridge Electric Cement production process could be used at scale in the UK. Source: UK FIRES. Click to view larger version.

CEC’s forecast of how its process could be used at scale in the UK can be seen above in Figure 1. If the majority of the country’s steel scrap was recycled in this fashion each year then 2.4Mt/yr of CEC cement could be produced. This would represent a quarter of the c10Mt of cement sales reported by the MPA in 2021. Assuming the EAFs were powered by renewables then this could reduce the cement sector’s CO₂ emissions significantly. Although it would still leave the industry looking for other decarbonisation routes for the other three-quarters of cement demand.

C2Z and CEC offer a novel spin on cement production by recycling concrete waste, using an electrical heating step and dodging the process emissions associated with normal ordinary Portland cement (OPC) clinker production. If it did progress to a commercial stage then it would see a continued relationship between steel and cement producers. Currently this is mainly centered around iron and steel slag usage as a SCM. One point of interest here would be how much higher levels of steel recycling and a process like CEC being used regularly would affect existing slag usage as an SCM. It doesn’t look like CEC could solve the cement sector’s CO₂ emission problem all on its own but it could certainly make a difference if it progressed to a commercial stage. As ever with cement sector decarbonisation there appear to be a range of options available to producers.

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.”

UK: The World Cement Association (WCA) has appointed three new directors: Fabien Charbonnel, the chief executive officer (CEO) of Cem’In’Eu; Xu Gang, the chair of the board of Maweni Limestone and Vice President and Head of Overseas Area of its parent company Huaxin Cement; and Kevin Lunney, the chief operations officer of Mannok Holdings. The appointments were agreed at the WCA General Assembly Meeting, which took place in January 2023.

At the same time Mohammed Ali Al-Garni, the CEO of Saudi Cement, and Roland van Wijnen, the CEO of PPC, were re-elected to the board of directors. Vincent Lefebvre, the founder and executive chair of Cem’In’Eu, and Mahendra Singhi, the managing director and CEO of Dalmia Cement, have also resigned as directors. They joined the board of directors of the WCA in 2019 and 2020 respectively.

UK: Heidelberg Materials subsidiary Hanson has awarded a contract to Mitsubishi Heavy Industries subsidiary MHI Engineering for installation of a planned 800,000t/yr carbon capture system at its Padeswood cement plant in Flintshire. The producer plans to store its captured CO₂ in exhausted Irish Sea natural gas fields. MHI Engineering will carry out a pre-front-end engineering design study using its Advanced KM CDR solvent-based process. The supplier developed the process jointly with fellow Japan-based company Kansai Electric Power.

The project will be MHI Engineering's third of its kind at a cement plant, following similar commissions with Lehigh Cement in Canada and Tokuyama Cement in Canada.

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.

UK: Oscrete UK has appointment three new sales managers and two new trainee concrete technicians as part of on-going growth at the company. David Todd has joined as Area Technical Sales Manager (North), David Taylor as Area Sales Manager (Midlands) and Karl Mobley Area Technical Sales Manager (South East). Keiron and Michael Todd have joining the new product development (NPD) and technical team. Todd worked previously as an account manager for Cemex.

Oscrete is a specialist construction chemical suppliers, manufacturing a range of concrete admixtures for the pre-cast and ready-mix market and developing and supplying additives for the manufacture of dry bagged mortars and adhesives.

UK: C-Capture won an IChemE Global Award in the Energy category for its solvent-based carbon capture system. C-Capture's model differs fundamentally from currently commercially available systems, offering a lower energy penalty than technologies including amine-based capture. It is robust in handling impurities in flue gases, including O₂, SO_x and NO_x, while offering competitive cost and safety performance.

CEO Tom White said “Being shortlisted was honour enough, but to win the global Energy award is fantastic recognition for the C-Capture team and our unique carbon capture technology. The IChemE Global Awards represent the pinnacle of excellence in chemical process engineering. This achievement is testament to our exceptional team and their commitment to accelerating the global adoption of carbon capture and storage to achieve net zero by preventing greenhouse gases from entering the atmosphere.”

UK: The Mineral Products Association (MPA) has appointed Jon Flitney, Michael Conroy, Liam Forde, Steve Callow and Mike Haynes to new roles at the organisation. This follows the appointment of Jon Prichard as the MPA’s chief executive officer in October 2022, succeeding Nigel Jackson.

Jon Flitney has joined MPA Cement as Energy and Climate Change Manager. He will be working with the MPA Cement Climate Change and CO2 Reduction group providing support to sector decarbonisation and associated policies. Flitney joins from the British Ceramic Confederation (BCC) where he has worked across energy, environment, climate change and decarbonisation policy areas for over six years. He also previously worked on air quality and environmental protection for local authorities and the Environment Agency, covering a variety of manufacturing industries.

Michael Conroy joins as Manager - Environment, Safety & Regulatory Affairs for MPA Cement. He has over 20 years’ experience in the mineral products industry and ,since 2016, this has been focussed on environmental management, compliance, permitting and regulation across various sectors within the industry. His role at MPA involves working with members in the cement sector and liaising with the environmental regulators and relevant government departments on behalf of the members to ensure the sector is recognised in a positive and beneficial way. He is secretariat for the Cement Regulatory Interface Group (RIG), which meets regularly to discuss environmental regulatory matters that affect and impact the UK cement sector.

Liam Forde has joined BRMCA/MPA Ready-mixed Concrete as Construction Manager. His main responsibilities will be working with MPA members, the Concrete Centre and UK Concrete to promote safety, best practice, and ready-mixed concrete as the best solution for sustainable and resilient construction. Forde is a chartered civil engineer and joins from BAM Nuttall having had a background in both design and site environments.

Steve Callow has joined as Manager, Masonry and Concrete Products. He joins from Marshalls where he was Specification Manager. He also has sector experience gained from roles in FP McCann, CPM, Milbury Systems and Carillion.
Mike Haynes has joined MPA as British Lime Association Director. He joins MPA after 18 years in the lime industry working in the sales and customer services teams responsible for Construction and Civil Engineering markets and progressing to managing the customer services team. Prior to this, Haynes worked for contractors and consultants in those markets, as an engineer and project manager.