Displaying items by tag: construction and demolition waste
Switzerland: Holcim has reported growing sales and earnings on an organic basis in first nine months of 2023. In real terms its sales declined by 10% year-on-year to US$22.7bn during the first nine months of 2023 from US$25.2bn in the first nine months of 2022. Its recurring earnings before interest and taxation (EBIT) fell by 2.2% to US$4.05bn from US$4.14bn. However, sales and recurring EBIT grew by 6.2% and 14% respectively on an organic basis. The group divested businesses in India, Brazil and Russia in 2022.
Cement sales were US$11.5bn (51% of group sales), down by 20% from US$14.4bn (57% of group sales). These sales rose by 12% on an organic basis. Throughout the period, ECOPlanet low-carbon cement accounted for 19% of the company’s cement sales. It also recycled 17% more construction and demolition waste year-on-year. Group CO2 emissions per net sales fell by 43% between 2020 and 2023.
Chair and chief executive officer Jan Jenisch said “I thank all members of the Holcim family for delivering profitable growth in the third quarter of 2023 despite challenging economic conditions, marked by softer demand in some markets and foreign exchange headwinds.” He added “The third quarter of 2023 results confirm Holcim’s strong earnings profile, with broad-based growth drivers delivering another increase in profitability. This performance gives us the confidence to upgrade our 2023 guidance to an industry-leading recurring EBIT margin of above 17% for the year.” The group also upgraded its outlook for full year organic sales growth to above 6% and for organic EBIT growth to above 10%.
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.
France: Holcim France has commissioned its new Saint-Laurent-de-Mûre alternative raw materials plant in Rhône Department. The unit produces cementitious paste from construction and demolition waste using Holcim’s ECOCycle upcycling process. It will source construction and demolition waste from the Lyon Metropolitan Area.
Holcim’s global head of circular construction Vincent Teissier said “Advancing such circular technologies is one of the main pillars of our sustainability strategy. This new advanced crushing unit in Saint-Laurent-de-Mûre is a major step toward using construction and demolition materials to their full value.”
Spain: Cementos Molins has processed 75,000t of waste into alternative raw materials for use in its cement production since opening its Barcelona alternative raw materials plant in September 2022. The plant has a production capacity of 200,000t/yr. It produces the materials from construction and demolition waste and various industrial by-products.
Cementos Molins’ director of corporate development and sustainability, Carlos Martínez, said “Our commitment to the environment is intrinsically linked to our business model, which is based on the development of sustainable and innovative materials.” He continued “We provide a second life to industrial and construction waste that would otherwise end up in landfills, generating high-quality sustainable products from them. The plant has enabled all our cements to incorporate alternative raw materials in their production process. Furthermore, we are working to reduce the carbon footprint of all our concretes, ensuring that, in the short term, all of them include recycled aggregates in their manufacture."
Cemex UK supplies by-pass dust to farmers
24 October 2023UK: Cemex UK says that it has collected 130,000t of by-pass dust (BPD) from its Rugby cement plant in Warwickshire since 2015. The producer supplies the BPD to the agriculture sector, where it can replace traditional fertilisers and lime due to its high lime and potassium content. Additionally, Cemex UK has sponsored research into this and other circular economic uses of BPD, including an on-going study which claimed the Carbon Journey Award at the Eco Innovation North West Awards 2023.
Cemex’s Europe regional head of sustainability Paul Fletcher said “We are very proud of our partnership with Silverwoods and the considerable positive impact their innovation and expertise has had on our ability to reuse BPD for other applications. We believe it leads the way in our industry and presents real potential to be adapted elsewhere across our operations. Not only does it benefit the environment by reducing the amount of materials that need to be disposed of, but it generates a product that has a value for farmers and helps cut the use of traditional materials.” He added “This partnership demonstrates that to deliver true circularity, more industrial by-products, including those from different sectors of the economy, need to be used as secondary resources, rather than primarily be seen as waste. If this is to be achieved, a new perspective is needed to boost circular economy practices, with regulations and permitting supporting this proactively.”
Górażdże Cement to invest Euro261m in carbon capture and waste concrete recycling at Górażdże cement plant
05 October 2023Poland: Górażdże Cement has announced an investment of Euro261m in planned sustainability upgrades to its Górażdże cement plant in Opole Voivodeship, the Polish News Bulletin newspaper has reported. The Heidelberg Materials subsidiary plans to build a carbon capture installation, a green energy source and a facility to recycle construction and demolition waste for use in its cement production.
UAE: Cemex UAE and UltraTech Cement UAE have signed an agreement to collaborate on the development of waste concrete recycling in the UAE, according to Dow Jones Institutional News. The cement producers say that their partnership will help to reduce CO2 emissions from construction, in line with the UAE’s 2050 net zero commitment.
James Whitelaw to head Hanson UK’s new recycling line
20 September 2023UK: James Whitelaw will take on the role of managing director in Hanson UK’s newly-established recycling business line. He will be responsible for identifying opportunities to grow organically using the company’s existing capabilities and for integrating new acquisitions.
Whitelaw has held management roles in Hanson UK since 2001 and most recently served as aggregates managing director. Former concrete managing director Brian Charleton will replace him in this role, while Gordon Napier, previously concrete regional director, joins Hanson UK’s executive team as the new concrete managing director.
Holcim invests in Neustark
20 September 2023Switzerland: Holcim has invested in CO2 mineralisation technology developer Neustark. Neustark aims to remove 1Mt of atmospheric CO2 by 2030 and sequester it in recycled construction and demolition waste. The company’s technology achieved Gold Standard certification as a method of CO2 removal in March 2022. Holcim says that its investment advances its group commitment to putting clean technologies to work towards achieving net zero.
Holcim’s Europe regional head Miljan Gutovic said "At Holcim, we are working to decarbonise building for a net zero future, and Neustark's technology helps us reach this goal. After the successful demonstration of Neustark's solution in Switzerland, we are ready to scale up this carbon removal technology globally."
Hanson UK launches construction and demolition waste recycling business
20 September 2023UK: Hanson UK has launched a recycling business line to process construction and demolition waste. The business will supply recycled materials for use in Hanson UK’s operations.
CEO Simon Willis said “Promoting circularity by recycling, reusing and reducing the use of primary raw materials is crucial to reaching net zero. The development of a separate recycling business line will allow us to provide the most sustainable products to our customers through circularity and innovation, to enable building more with less. It is another significant step towards achieving our aim of being the industry leader in the supply of sustainable, circular products.”