Displaying items by tag: Research
Sika opens Suzhou Technology Centre
15 December 2023China: Switzerland-based Sika has opened its new Suzhou Technology Centre in Jiangsu Province. The centre will help Sika to develop its sustainable and high-performance technologies in order to grow it market potential throughout the Asia/Pacific region. By strategically expanding its research and development activities across all core technologies, Sika aims to further strengthen its global innovation leadership.
Chief innovation and sustainability officer Patricia Heidtman said "With our new technology centre, we are strengthening our innovation capabilities in the Asia/Pacific region and are fostering synergies in sustainable construction and environmentally friendly mobility. We have created the ideal framework for close collaboration between our research teams. It will thus enable us to develop forward-looking technologies for our customers that combine sustainability with performance."
Dalmia Cement (Bharat) and SaltX Technology to launch electric cement production pilot
12 December 2023India: Sweden-based SaltX Technology has partnered with Dalmia Cement (Bharat) to launch a pilot trial of fuel-free cement production using its electric arc calciner (EAC) in 2024. The pilot plant will be situated at Dalmia Cement (Bharat)’s Rajganga Nagpur cement plant in Odisha. Pre-study work, including material tests at SaltX Technology's test and research centre in Hofors, Sweden, will commence in early 2024.
Dalmia Cement (Bharat) managing director and chief executive officer (CEO) Mahendra Singhi said "In line with our ambition to further reduce our carbon footprint, we are delighted to collaborate with SaltX, a leading innovator with electrification and carbon capture technology that has great potential to play a decisive role in our intense work to reduce our carbon emissions."
SaltX Technology CEO Carl-Johan Linér said "I am pleased to confirm that we have now started working together on-site for the upcoming pilot in India. We have met all key individuals in the project and look forward with confidence to starting the pre-study next year."
Spain: Cemex’s venture capital unit Cemex Ventures announced the launch of its second LeapLab accelerator programme for high-potential start-ups on 30 November 2023. The programme introduces a cohort of five start-ups from around the globe, which will carry out pilot-scale tests of their technologies across 100 Cemex sites in 12 different countries. Throughout the process, experts from Cemex and partner organisations will support the work of the start-ups as mentors, pilot leaders, speakers and assistants, as well as providing business advice and support in network building. The selected start-ups are AI technology developers Introid, Mixteresting and Verusen, hybrid vehicle fuel optimisation company Movener and water monitoring specialist Waterplan.
Cemex’s executive vice president of digital and organisation development Luis Hernández said “Start-up acceleration is a key pillar of Cemex’s open innovation strategy, since the time to scale the technologies that enable us to build a better future is now. By combining the disruptive solutions and agility of start-ups with Cemex’s extensive industry networks and resources, start-up acceleration is a vehicle for tangible innovation generation.”
Update on construction and demolition waste, October 2023
25 October 2023Cementos Molins has been celebrating the first anniversary this week of its alternative raw materials unit at its Sant Vicenç dels Horts plant near Barcelona. It has processed 75,000t of waste since September 2022 when the site started up. More is yet to come as the unit has a production capacity of up to 200,000t/yr. The facility receives waste in coarse, granular, powder and sludge formats. Waste from concrete plants is crushed and screened to produce recycled aggregate. Industrial and construction waste is dosed and homogenised to produce alternative raw materials for cement production.
Global Cement Weekly has covered construction and demolition waste (CDW) a couple of times already so far in 2023. A number of cement producers are investing in the sector - including Holcim, Heidelberg Materials, CRH, Cemex – by developing technology, buying up other companies, setting up internal CDW divisions and so on. Holcim and Heidelberg Materials have been the more obviously active participants over the past six months based on media coverage. In September 2023 Holcim France commissioned the Saint-Laurent-de-Mûre alternative raw materials plant and Holcim Group invested in Neustark, a company promoting technology to sequester CO2 in CDW. In August 2023 Lafarge Canada also completed the first stage of a pilot project to use CDW in cement production at its St. Constant plant in Quebec. Heidelberg Materials meanwhile announced in October 2023 that a forthcoming upgrade to its Górażdże cement plant in Poland would include a new CDW recycling unit and in September 2023 it launched a CDW division for its subsidiary Hanson UK.
Previously we have described how the European Union (EU) has set recovery targets for CDW. However, McKinsey & Company published research in March 2023 setting out the economic case for cement and concrete companies looking at CDW. It estimated that “an increased adoption of circular technologies could be linked to the emergence of new financial net-value pools worth up to roughly Euro110bn by 2050.” It is not a certainty and there is risk involved, but adopting circular practices is one way to reduce this risk. It then went on to predict that recirculating materials and minerals could generate nearly Euro80bn/yr in earnings before interest, taxation, depreciation and amortisation (EBITDA) for the cement and concrete sectors by 2050. The biggest portion of this could come from using CDW in various ways such as a clinker replacement or as an aggregate in concrete production, or the use of unhydrated cement ‘fines.’ Capturing and using CO2 and increasing alternative fuels (AF) substitution rates would have a financial impact but not to the same scale.
Graph 1: CO2 abatement cost via circular technologies for cement and concrete sectors. Source: McKinsey & Company.
Graph 1 above puts all of the McKinsey circular technology suggestions in one place with the prediction that all of these methods could reduce CO2 emissions from cement and concrete production by 80% in 2050 based on an estimated demand of 4Bnt/yr. The first main point they made was that technologies using CO2, such as curing ready-mix or precast concrete, can create positive economic value at carbon prices of approximately Euro80/t of CO2. Readers should note that the EU emissions Trading Scheme CO2 price has generally been above Euro80t/yr since the start of 2022. The second point to note is that using CDW could potentially save money by offering CO2 abatement at a negative cost through avoiding landfill gate fees and reducing the amount of raw materials required. This is dependent though on government regulation on CO2 prices, landfill costs and so on.
Cement producers have been clearly aware of the potential of CDW for a while now, based on the actions described above and elsewhere, and they are jockeying for advantage. These companies are familiar with the economic rationale for AF and secondary cementitious materials (SCM) in different countries and locations. CDW usage is similar but with, in McKinsey’s view, existing CO2 prices, landfill costs, and regulatory frameworks all playing a part in the calculations. Graph 1 is a prediction but it is also another way of showing the path of least resistance to decarbonisation. It is cheaper to start with AF, SCMs and CDW rather than barrelling straight into carbon capture. The beauty here is that cement and concrete sold, say, 50 years ago is now heading back to the producers in the form of CDW and it still has value.
Thailand: China-based intelligent dumptruck supplier Waytous has partnered with Siam Cement Group (SCG), as well as Thailand Advanced Info Service, Huawei, and Zhengzhou Yutong Mining Equipment, to develop full-scope automated operating systems for limestone mines. SCG will host a study at its Saraburi limestone mine in Central Thailand. The study will use Waytous’ driverless vehicles, supported by 5G, AI, cloud computing and new battery technologies.
Waytous CEO Chen Long "We've carried out two phases of unmanned mining research for this project and found the most comprehensive, efficient, and effective unmanned solution for cement mines in Saraburi.”
CirCap-led consortium invests in Nanogence
19 October 2023Switzerland: Reduced-CO2 cement catalyst developer Nanogence has secured an undisclosed sum from a consortium of investors led by investment fund CirCap. Nanogence’s catalyst reduces the CO2 emissions of cement production by 40%, without changing production processes. Tech EU News has reported that the catalyst is capable of increasing cement’s strength and durability compared with that of ordinary Portland cement (OPC) produced without it. Prior to the latest financial development, the company had raised US$2.7m-worth of funding.
CEO Abhishek Kumar said “We are excited to receive the support from incoming renowned investors in this essential journey to accelerate the transition towards a low carbon built world. With growing demand worldwide, we need to align with like-minded strong backers for our growth phase.”
YTL Cement funds sustainable construction initiatives
18 October 2023Malaysia: YTL Cement has awarded a US$210,000 grant to the Construction Research Institute of Malaysia (CREAM). CREAM will use the funding for three main initiatives: the development of reduced-CO2 cement alternatives, research into more sustainable construction practices and training.
YTL Cement managing director Dato Sri Michael Yeoh said “As a company that has been assisting with the development of Malaysia for over 70 years, we know the importance of investing in our nation’s progress, while simultaneously addressing our construction needs in a sustainable manner.”
US Department of Energy grants C-Crete Technologies US$2m
17 October 2023US: The US Department of Energy has awarded C-Crete Technologies US$2m in funding. C-Crete Technologies is developing a method for using CO2 captured at industrial sources or from the air as an ingredient in its cement-free concrete. The binder will produce almost no CO2 and continue to absorb more CO2 from the air over time. It offers scalability and cost-parity with conventional cement for concrete producers, according to the developer.
C-Crete Technologies president Rouzbeh Savary said “We are committed to crafting a cement-free, carbon-negative ready-mix concrete that doesn’t just mitigate CO2 emissions but actively contributes to reversing climate change. Our aim is nothing short of revolutionising this hard-to-abate, carbon-heavy sector.”
UK: First Graphene and Breedon Group have entered into a development and commercialisation agreement. Together, the companies aim to enhance Breedon Cement’s CEM II Portland limestone cement (PLC) through the use of First Graphene’s graphene enhanced grinding aids and cement admixtures. Breedon will provide increased access to cement production lines in order to optimise the understanding of the processing environment and operating conditions.
Breedon Group’s Hope cement plant in Derbyshire previously conducted a 24-hour graphene-enhanced cement production trial on 28 June 2023.
Tarmac and Cambridge Electric Cement participate in trial melt of Cement 2 Zero carbon neutral cement project
03 October 2023UK: The Cement 2 Zero project has successfully concluded its first trial melt of recovered cement paste in an electric arc furnace at the Materials Processing Institute’s Teesside campus. The project uses the paste as flux for electric steel recycling. Cambridge Electric Cement (CEC) has demonstrated that the ‘slag’ from this process can be ground into fine clinker that, when mixed with gypsum and supplementary cementitious materials (SCMs), produces net zero CO2 cement. The Cement 2 Zero project to produce CEC’s cement at an industrial scale launched in March 2023, with US$7.85m in funding from UK Research and Innovation. Tarmac will grind the clinker from the project’s trial melts for testing in order to obtain certification and specification as a usable cement product.