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From the Nordics to the Mediterranean, European countries lead the field in reduced-clinker cement production using supplementary cementitious materials (SCMs). While consumers, faced with ever-greater choice, continue to opt for sustainability, projects to improve existing SCMs and develop new ones have won government backing and have become a matter of serious investment for other heavy industries beside cement. European cement producers’ decisions are steering the course to a world beyond CEM I. Yet, even in Europe, great untapped potential remains.

Companies generated a good deal of marketing buzz around their latest reduced-CO₂ cement ranges in 2021 and the first quarter of 2022: Buzzi Unicem’s CGreen in Germany and Italy, Holcim’s EcoPlanet in six markets from Romania to Spain, Cementir Holding’s Futurecem in Denmark and Benelux, and Cemex’s Vertua in Spain and several other countries. All boast reduced clinker factors through the use of alternative raw materials. This, however, is really a rebranding of a long-established norm in Europe.

Since 2010, cements other than CEM I have constituted over 75% of average annual cement deliveries across Cembureau member countries (all cement-producing EU member states, plus Norway, Serbia, Switzerland, Turkey, the UK and Ukraine). This statistic breaks down differently from country to country. CEM II is the norm in Austria, Finland, Portugal and Switzerland, with deliveries in the region of 90%. Portland limestone cement (PLC) makes up a majority of deliveries in all four. It has been central to Switzerland’s transition to 89% (3.72Mt) of CEM II deliveries out of a total 4.18Mt of cement despatched in 2021. There, the main types of cement were CEM II/B-M (T-LL) Portland composite cement, with 1.38Mt (33%), and two different classifications of PLC: CEM II/A-LL PLC, with 1.28Mt (31%), and CEM II/B-LL PLC, with 888,000t (21%).

A second approach is that of the Netherlands, where CEM III blast furnace slag cement with a clinker factor below 65% predominates, favoured for its sulphate resistance and the protection it offers against chloride-initiated corrosion of steel reinforcement in marine settings. By contrast, the UK has traditionally maintained a higher reliance on CEM I cement. This can be partly explained by the preference of builders there for adding fly ash or ground granulated blast furnace slag (GGBFS) at the mixing stage. Nonetheless, CEM II Portland fly ash cement held a 14% (1.43Mt) market share in the UK’s 10.2Mt of cement consumption in 2021.

The UK Mineral Products Association (MPA) has identified limestone as an underutilised resource in the country’s cement production. Together with HeidelbergCement subsidiary Hanson Cement, it has applied for a change to National Application standards to allow the production of Portland composite cement from fly ash and limestone or GGBFS and limestone. The association has forecast that Portland composite cement could easily rise to 30 – 40% of UK cement consumption, and that this has the potential to eliminate 8% of the sector’s 7.8Mt/yr-worth of CO₂ emissions.

Metallurgical waste streams have long flowed into European cement production, primarily as GGBFS, but also as bauxite residue. In 2021, alumina production in the EU alone generated 7Mt of bauxite residue, of which the bloc recycled just 100,000t (1.4%) that year. Two projects – the Holcim Innovation Center-led ReActiv project and Titan Cement and others’ REDMUD project – aim to produce new alternative cementitious materials from bauxite residue.

By collaborating with other industries, cement producers’ investments can most effectively reduce the overall cost of using these materials in cement production. In Germany, HeidelbergCement and ThyssenKrupp’s Save CO₂ project aims to develop new improved latent hydraulic binders or alternative pozzolan from GGBFS by producing slag from directly reduced iron (DRI). The Save CO₂ team believes that GGBFS substitution for clinker has the capacity to eliminite 200Mt/yr of CO₂ emissions from global cement production.

Meanwhile in the world of mining, ThyssenKrupp and others’ NEMO project is investigating the recovery of a useable mineral fraction for cement production from the extractive waste of the Luikonlahti and Sotkamo mines in Finland and the Tara mine in Ireland, through bioleaching and cleaned mineral residue upcycling. This may give cement producers full access to Europe’s 28Bnt stockpiles of sulphidic mining waste, of which mines generate an additional 600Mt each year.

Denmark-based CemGreen, which produces the calcined clay supplementary cementitious material CemShale, is developing a shale granule heat-treating technology called CemTower. This consists of three pieces of equipment vertically integrated into cement plants’ preheaters, kilns and coolers, and brings the processing of waste materials – here oil shale – to the cement plant.

Lastly, cement producers are exploring the possible uses of waste made of cement itself. In Wallonia, HeidelbergCement subsidiary CBR’s CosmoCem project is investigating the production of alternative cement additives from large available flows of local demolition, soil remediation and industrial waste. Similarly, the Greece-based C2inCO₂ project seeks to mineralise fines from concrete recycling for HeidelbergCement to use in the production of novel cements in its Greek operations.

In Switzerland, ZND Portland composite cement (produced using fine mixed granulate from building demolitions) is the third largest cement type, with 178,000t (4.3%) of total deliveries – narrowly behind CEM I with 239,000t (5.7%).Holcim Schweiz developed its Susteno 4 ZND Portland composite cement with Switzerland’s lack of any ash or slag supply in mind, demonstrating the potential flexibility of a circular economic approach to cement production.

On 21 March 2022, the University of Trier reported that it is in the process of mapping mineral resources, waste deposits and usable residues ‘on a cross-border scale,’ in an effort to produce new materials for use in cement production. Industry participants include France-based Vicat, CBR, Buzzi Unicem subsidiary Cimalux and CRH subsidiary Eqiom. Vicat is preparing a kiln at its 1Mt/yr Xeuilley cement plant in Meurthe-et-Moselle to use in testing new alternative raw materials developed under the project.

For Cembureau and its members, work continues, with the goal of Net Zero by 2050 constantly in sight. This goal includes a reduction in members’ clinker-to-cement ratios to well below 65%. In this, the association and its members are working towards a world not just beyond CEM I, but beyond CEM II, too. What exactly this will mean remains to be seen.

Sources

CemSuisse, ‘Lieferstatistik,’ 11 January 2022, https://www.cemsuisse.ch/app/uploads/2022/01/Lieferstatistik-4.-Quartal-2021.pdf

WSA, ‘December 2021 crude steel production and 2021 global crude steel production totals,’ 25 January 2022, https://worldsteel.org/media-centre/press-releases/2022/december-2021-crude-steel-production-and-2021-global-totals/

MPA, ‘Low carbon multi-component cements for UK concrete applications,’ July 2018, https://prod-drupal-files.storage.googleapis.com/documents/resource/public/Low%20carbon%20multi-component%20cements%20for%20UK%20concrete%20applications%20PDF.pdf

European Commission, ‘European Training Network for Zero-waste Valorisation of Bauxite Residue (Red Mud),’ 16 July 2020, https://cordis.europa.eu/project/id/636876

European Commission, ‘Industrial Residue Activation for sustainable cement production,’ 16 February 2022, https://cordis.europa.eu/project/id/958208

Recycling Portal, Zement der Zukunft – Forschungsprojekt „SAVE CO₂“ gestartet, 28 May 2021, https://recyclingportal.eu/Archive/65677

h2020-NEMO, ‘Project,’ https://h2020-nemo.eu/project-2/

European Commission, ‘Green cement of the future: CemShale + CemTower,’ 14 April 2021, https://cordis.europa.eu/project/id/101009382

CosmoCem, ‘Communiqué de Presse,’ https://cosmocem.org/

CO₂ Win, ‘C²inCO₂: Calcium Carbonation for industrial use of CO₂,’ https://co2-utilization.net/en/projects/co2-mineralization/c2inco2/

Les Echos, ‘Rendre le ciment moins gourmand en CO₂,’ 21 March 2022, https://www.lesechos.fr/pme-regions/innovateurs/des-substituts-au-clinker-rendent-le-ciment-moins-gourmand-en-co2-1395002

There have been a couple of acquisitions of note this week in the north-western US and Holcim has picked up another building solutions company. To find out how the latter relates to former photography products producer Kodak, read on.

Starting with the north-western US, HeildelbergCement announced that it finalised the acquisition of Corliss Resources, a large family-owned aggregates and ready-mixed concrete company, for an undisclosed sum. The purchase includes major aggregate operations with sales volumes of about 2Mt/yr and reserves and resources of about 170Mt and four ready-mixed concrete (RMX) plants selling about 0.3Mm³/yr in the Greater Seattle area.

Global Cement normally sticks to cement but Holcim did something similar last week. It completed the acquisition of Cowden, another ready-mixed concrete and aggregate producer based in Bellingham in Washington state. This sale includes two RMX plants, eight aggregate facilities and a hauling fleet. Again, there was no word of the price.

Both the HeildelbergCement and Holcim purchases in the north-western US fit the selective bolt-on approach both companies have favoured in recent years. Looking specifically at the US, the United States Geological Survey (USGS) reported that estimated production for consumption of construction sand and gravel grew by 7% year-on-year to 753Mt in the first nine months of 2021. Estimated total construction aggregate production rose by 5% to 1.9Gt. Within the country, Washington’s sales of construction aggregates increased by 16% to 33Mt, the third largest rate by state nationally. Meanwhile, cement shipments for the country grew by 4% to 79.9Mt although they actually fell by 3% in Washington. This compares to annual growth of 2.8% in cement consumption in 2021 that the Portland Cement Association (PCA) was forecasting for the Pacific region of the US in the middle of 2021.

Holcim has been snapping up aggregates or RMX assets in established markets throughout 2021. These include US-based Marshall Concrete Products in December 2021, US-based Utelite Corporation in September 2021, Germany-based Heinrich Teufel in July 2021, the aggregates business and two RMX plants from Greece-based Halyps in May 2021 and Edile Commerciale and Cemex Rhone Alpes in Italy and France in February 2021. At the same time HeidelbergCement was mainly divesting itself of aggregates and RMX assets. It sold Halyps to Holcim and later in the same month agreed to sell its US West region to Martin Marietta Materials for US$2.3bn. The deal included cement, aggregates, RMX and asphalt businesses in California, Arizona, Oregon and Nevada. This covered two of its cement plants, with the exception of the 1.5Mt/yr Permanente cement plant in California, related distribution terminals, 17 active aggregates sites and several downstream operations. This makes the acquisition of new aggregate and RMX assets in Washington by HeildelbergCement interesting as we can see the company adjusting to its new market position. Although subsidiary Lehigh Hanson does not have a cement plant in the state it does operate a terminal in Seattle as well as other aggregate and RMX operations. North across the border in Canada though it still runs the integrated Delta Cement plant and terminal near Vancouver.

Returning to Holcim’s other acquisition this week brings us to Holcim’s target to expand the net sales of its Solutions & Products division to 30% of the group total by 2025 as part of its plans to decarbonise. This week it took one more step towards this goal with an agreement to buy France-based PRB Group, a manufacturer of coatings, insulations, adhesives and flooring systems. Global Cement Weekly has covered this topic a few times but, to recap, it started in January 2021 when Holcim announced it was buying roofing and building envelope producer Firestone Building Products for US$3.4bn. Various other related acquisitions have followed including an agreement to buy US-based Malarkey Roofing Products in December 2021.

How any of this relates to Kodak is as follows. Holcim’s predecessor Lafarge previously owned a major business away from cement, concrete and aggregates, namely gypsum. The gypsum wallboard business, like roofing, emits far less carbon than clinker production. In 2010 Lafarge’s gypsum business constituted nearly 9% of group revenue and it described itself as the third largest company in the sector worldwide. This was divested in the early 2010s in response to debts accrued by Lafarge’s acquisition of Orascom Cement in 2008. A decade later this decision appears to be the opposite of Holcim’s current strategy and indeed much of the cement sector’s current attempts to lower its carbon risk.

Kodak infamously filed for bankruptcy in 2012 after failing to move from analogue photography products to the digital market. The question cement company strategists should be asking themselves is whether their sector faces the same kind of disruption from the government and investment response to climate change. Lafarge apparently didn’t think so 10 years ago. Its successor Holcim does.

Canada: The Cement Association of Canada (CAC) has appointed Adam Auer as its next president and chief executive officer (CEO) with effect from the start of April 2022. He will succeed long-standing president and CEO Michael McSweeney, who has held the post for 12 years. McSweeney will remain as a strategic advisor to Adam Auer until the end of June 2022.

Auer holds over 20 years’ experience as a sustainability professional working with public, private and non-profit institutions. As the CAC’s Vice President of Environment and Sustainability he has worked with government, industry, environmental and other civil society groups to promote and enhance concrete’s contribution to sustainability, with a specific emphasis on life cycle approaches to climate change mitigation and adaptation. Prior to joining the CAC in 2012, Auer managed Environment Canada’s Corporate Environmental Innovation initiative, a multi-stakeholder program to promote the business and financial case for corporate environmental leadership and the link between sustainability and an innovative and competitive economy. He holds a Master of Environmental Studies from York University and a Bachelor of Science in Ecology from the University of British Columbia.

Austria: Semperit AG Holding has appointed Karl Haider as its new chief executive officer (CEO). His tenure will last until the end of March 2024. He succeeds Martin Füllenbach, who resigned from his position prematurely at the end of September 2021. Since that time, chief financial officer Petra Preining and chief operation officer Kristian Brok have assumed the responsibilities of a CEO on an interim basis.

Haider recently worked as the Chief Commercial Officer at Tata Steel Europe. At Tata Steel, he had previously also led major merger and acquisition transactions and served as Director Operations Downstream. Prior to that, he was a member of the board of Voestalpine's high performance metals division, having held sales and project management positions in the group. He started his career as a chemical laboratory technician and subsequently studied technical chemistry at the Johannes Kepler University Linz.

Semperit develops and produces specialised rubber products for the industrial and medical sectors, selling them in over 100 countries around the world. Its products for the cement industry include conveyor belts. The company has its headquarters in Vienna.

India: UltraTech Cement has commissioned the new 2Mt/yr Line 2 of its Bara grinding plant in Uttar Pradesh. The additional capacity will help the company to serve the growing Central Indian cement market. Its total installed capacity is now 115Mt/yr, up by 2.9% year-on-year from 111Mt.

UltraTech Cement says that the Bara grinding plant, which opened in January 2020, operated at 80% capacity utilisation in the 2020 financial year.

Nepal: Huaxin Cement Narayani has ignited the kiln at its 1Mt/yr Dhading cement plant in Bagmati. Construction of the project started in 2019 but it was delayed by flooding, disputes over land ownership and the emergence of the coronavirus pandemic. China-based Huaxin Cement originally signed an agreement with the Investment Board Nepal in 2018 to build the plant for US$140m.

South Korea: A TEC says that it has installed and commissioned a ReduDust dust treatment plantin the chlorine bypass system of Ssangyong Cement’s Donghae cement plant in Gangwon. The ReduDust plant will recover salts from dust, enabling the producer to reuse the dust in its cement production. The supplier says that it will yield 35,000t/yr of useable dust. Ssangyong Cement already uses an A TEC Rocket Mill grinding unit in its alternative fuel (AF) production at the Donghae cement plant.

US: The United States Geological Service (USGS) reported total cement deliveries of 89.7Mt in the first 10 months of 2021, up by 3.5% year-on-year from 86.7Mt in the corresponding period of 2020. Imports over the period totalled 13.8Mt, up by 17% from 11.8Mt.

10-month clinker production was 65.1Mt in 2021, up by 0.5% from 64.8Mt in the first 10 months of 2020.

Nigeria: Dangote Cement plans to buy back 1% of its issued shares under its on-going share buyback programme. The Business Post newspaper has reported that the group launched the first tranche of the programme in 2020. At that time, it bought back 0.2% of its shares. Dangote Cement will make the currently planned purchase when the second tranche commences on 19 January 2022.

Pakistan: Power Cement has signed an agreement with Burj Solar Energy for the procurement of electricity on a fixed tariff for the next 20 years. The supplier plans to build a 7MW solar power plant to support the deal. The unit is expected to be operational by mid to late 2022. Power Cement said it took the decision to cut growing electricity costs.