
Displaying items by tag: GCW491
Concrete thinking
03 February 2021Andrew Minson from the Global Cement and Concrete Association (GCCA) kicked off this week’s Virtual Global Concrete Conference with an overview of concrete’s role in the association’s 2050 climate ambition. The association announced in September 2020 that it was starting work on this roadmap for publication in the second half of 2021, just in time for the 2021 United Nations Climate Change Conference, currently schedule to take place in Glasgow, Scotland in November 2021. Minson ran through the topic, providing an overview of concrete’s intrinsic sustainable features and the policy levers the association is considering for its forthcoming roadmap.
One point from circular economy aspects of the plan included design for dis-assembly (DfD) and long life, loose fit modes of thinking around how a building using concrete should be conceived, designed, built, used and - crucially – reused. Long life, loose fit, low energy (to use its original name) was promoted by the Welsh architect Alex Gordon from the early 1970s. It covered themes of sustainability, flexibility and energy efficiency for building design ahead of both the 1970s oil crisis and the current climate one. DfD emerged in the 1990s as a way of thinking about a building’s demolition at the start and working from there. Deconstruction or demolition is prepared for through planning and design. It allows components and materials to be removed more easily, facilitating their subsequent reuse. So, components and materials can be removed more easily allowing their subsequent reuse and elements such as columns, walls, beams, and slabs can be disassembled to facilitate this. Last year Global Cement Weekly explored a similar path with the ideas of Dutch architect and commentator Thomas Rau (GCW348) and his concept of building materials as a service, following on from the Building Information Modelling (BIM) system, and the suggestion that companies simply rent (!) building materials from their manufacturers to encourage whole life thinking.
Chart 1: Uses of concrete by European Ready Mixed Concrete Organisation (ERMCO) members in 2018. Source: ERMCO.
Just how much concrete the world uses each year is a question beyond the scope of this article, given its range of applications and diversity of users. For example, the Cement Sustainability Initiative (CSI) estimated 25Bnt in 2009. Later, the International Organization for Standardization (ISO) technical committee for concrete, reinforced concrete and pre-stressed concrete placed the figure at around 33Bnt in 2016. It is worth considering how and where concrete is actually used. The chart above from the European Ready Mixed Concrete Organisation (ERMCO) shows how its members used concrete in 2018. Note that use in buildings comprised the biggest share, nearly two thirds, but that the rest included infrastructure, pavements, roads and more. Lifecycle thinking and its various offshoots can apply to all of these applications. Yet it’s easier to imagine a concrete building shell being reused within its lifespan than, say, a bridge or a road. Concrete used in infrastructure seems more suitable for re-use further down the waste hierarchy, such as recycling as an aggregate.
A few final thoughts to consider are that both Cemex and gypsum wallboard manufacturer Etex have invested in modular and/or offsite construction companies in January 2021. Both targets were relatively small companies suggesting growing interest in these sectors by larger players. Offsite building construction suits lifecycle thinking well because the modular components start off being built elsewhere before installation. Factoring in what happens afterwards should be relatively easy and expandable at scale. Finally, LafargeHolcim announced this week that it is acquiring two ready-mix concrete and aggregate suppliers in France and Italy that will give it 35 concrete plants in the region.
Sustainability places lifecycle thinking into mainstream building practice and some methods and tools will inevitably make it into any policy framework the GCCA will recommend. Whether some or all of the ideas above hang around remains to be seen but lifecycle thinking in some form or another is here already and not going anywhere.
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US: The Mississippi Lime Company (MLC) has appointed Ryan Seelke as its Director of Safety. His focus will be on proactive risk-based safety practices, leadership, and training.
Prior to joining MLC, Seelke worked at Doe Run as a leader in their safety department. He also owned and led a private legal practice specialising in mine safety law and consulting before that assignment. He holds an MBA from St. Louis University, a law degree from Washington University and an economics degree from the University of Central Missouri. He is also pursuing a master’s degree in Occupational Safety Management from the University of Central Missouri. In addition, Ryan is a Mine Safety and Health Administration (MSHA) certified trainer.
Vincent Leboucher appointed as president of HGH Group
03 February 2021France: HGH Group has appointed Vincent Leboucher as president. He succeeds Thierry Campos who is retiring after being in the post since 2001.
Leboucher, aged 40 years, graduated from the Institut d'Optique Graduate School in 2002 and joined HGH in 2003 as an electro-optics engineer. His progression within the company saw him take on the position of Head of Research & Development in 2010 and Deputy General Manager in 2018.
During Campos’ time leading HGH the company launched its Wide Area Surveillance product line and the development of its international sales with growth in Asia and North America. In 2016, HGH acquired the electro-optics test and measurement specialist Electro Optical Industries in California, US. Then in 2018 the Carlyle Group acquired a majority stake in the group.
HGH was founded in 1982. It develops and sells optoelectronic and infrared systems and software for surveillance applications, test and measurement and industrial thermography in different end-markets. The company operates two research and development and assembly sites in the Optics Valley near Paris, France and in California, US. The company provides solutions to clients across 40 countries through two recognised brands, HGH Infrared Systems and Electro Optical Industries (EOI).
Mexico/US: Cemex has invested US$15m in recommissioning a 1Mt/yr cement kiln at its CPN cement plant in Hermosilla, Sonora. The decision is intended to reduce cement shortages in the western US and bolster its supply chain in Arizona, California and Nevada. The project at the CPN plant is scheduled for completion in the second quarter of 2021 and will create 130 jobs.
Cemex USA cement commercial executive vice president Joel Galassini said, “Many cement customers in California, Arizona and Nevada have been impacted by supply constraints this past year. The decision to recommission this kiln was made with our customers top-of-mind, to give them reliable access through a local supply chain to help meet their growing needs. Our unique network of production facilities in this region allows us to make these types of investments that will have a meaningful impact on meeting our customers’ needs.”
California regional president Francisco Rivera said, “We are excited to build greater synergies with our Mexican operations to strengthen our US cement supply chain and help our customers avoid or mitigate any potential delays to their projects in 2021.”
FLSmidth to supply white cement line conversion for Çimko Çimento’s Adiyaman cement plant
03 February 2021Turkey: Denmark-based FLSmidth has won a contract to provide a grey-to-white cement line conversion at Çimko Çimento’s cement plant in Adiyaman. The company will supply equipment suited to the production of white cement including its DuoFlex burner, rotary cooler and OK raw mill. It said that it will begin work in 2021 and the producer will commission the renovated line in early 2022.
The supplier said, “Once completed, the upgraded line will offer Çimko Çimento new opportunities to expand its product range and enter new markets. White cement is especially sought-after in countries with relatively hot climates, as it tends to keep buildings cooler with its reflective characteristics. In addition, as a high-quality, value-added product, white cement is often used in the construction of innovative buildings and important landmarks. FLSmidth brings significant experience and know-how to the project, having conducted several similar grey-to-white conversions in recent years, including projects with Turkey-based Adana Cement and Eskisehir Cement, as well as Alsafwa Cement Company and Riyadh Cement Company in Saudi Arabia.”
HeidelbergCement’s Hanover cement plant to host LEILAC 2 carbon capture and storage installation
03 February 2021Germany: HeidelbergCement, Australia-based Calix and a European consortium have chosen the Hanover cement plant in Lower Saxony for the second phase of the LEILAC (Low Emissions Intensity Lime And Cement) carbon capture and storage (CCS) project. The installation will capture 20% of the plant’s capacity or 100,000t/yr of CO2. The project will take place in three phases, with design completed by June 2021, a complete demonstration installation before the end of 2023 and project completion in 2025. The group previously installed a 25,000t/yr LEILAC CCS system at its Lixhe plant near Liege in Belgium, which completed its test phase in 2020.
Chair Dominik von Achten said, "The LEILAC technology has the potential to enable the cement and lime industries to efficiently capture their process emissions on an industrial scale. The pilot project in Hanover is one of several promising CO2 capture technologies that we are currently testing at full speed within the HeidelbergCement Group."
Fives refurbishes kiln at SOKA’s Quessoy plant
03 February 2021France: Fives has refurbished a rotary kiln at SOKA’s (Société Kaolinière Armoricaine) kaolin plant at Quessoy. Work on the project included: implementing a new nose-ring fitted with a downstream seal, to reduce false air flow and improve brick-lining lifetime; machining the tyres, replacing of the rollers and installing a new lubrication system, to improve the kiln scanning and enable an homogenous wear of the contact areas; and installing a grease spraying system fitted with a new girth gear housing to prevent advanced wear initiated by grease contamination. SOKA specialises in the extraction, processing and calcination of raw kaolin, refined kaolin and calcined kaolin in France and Ukraine.
Italcementi’s Bergamo research centre to stay in Italy
03 February 2021Italy: An agreement between Italcementi and its unions has confirmed that its Bergamo research centre to stay in Italy. The agreement with the FenealUil, Filca-Cisl, Fillea-Cgil, Italcementi RSU unions is intended to preserve jobs at the company, maintain at least 15,000 hours/yr of research at the site and dedicate at least 1% of the company’s profits towards research and innovation. Parent company HeidelbergCement was reportedly considering a relocation of the centre to Heidelberg in Baden Württemberg, Germany in late 2020.
Separately, Italcementi’s grinding plant at Salerno has been approved to continue producing white cement. The decision follows staff cuts at the cement producer, according to the Il Mattino newspaper.
GCM Industries plans 0.64Mt/yr cement plant in Kossodo
03 February 2021Burkina Faso: GCM Industries plans to establish a 0.64Mt/yr integrated cement plant, expandable to 1.2Mt/yr, in Kossodo, Ouagadougou. RTB News has reported the cost of the plant as US$135m. In its export phase, the producer says that the plant will provide 700 jobs. The cement plant will be Burkina Faso’s fifth. Commissioning is scheduled for early 2022.
Société Ciment Côte d'Ivoire inaugurates grinding plant near Abidjan
03 February 2021Ivory Coast: Société Ciment Côte d'Ivoire (SCCI) has inaugurated a 1.5Mt/yr grinding plant in the PK24 industrial zone of Akoupé-Zeudji near Abidjan. The subsidiary of Atlantic Financial Group spent US$110m on the project and it is expected to create 300 direct jobs, according to Koaci Media. Minister of Trade and Industry Souleymane Diarrassouba attended the event.