Global Cement News

India: The board of UltraTech Cement has voted to raise up to US$411m through issuance of US dollar-denominated bonds. The company will use the proceeds to refinance existing Indian Rupee debt, with the remainder reserved for regular on-going capital expenditure requirements and general corporate purposes.

Nigeria: BUA Cement recorded full-year net sales of US$550m in 2020, up by 20% year-on-year from US$460m in 2019. Profit after income taxes was US$185m, up by 16% from US$159m.

In December 2020, Global Cement reported that the company planned to bring three integrated cement plant projects with a total capacity of 9Mt/yr to fruition by the end of 2022. This would bring its installed capacity to 20Mt/yr.

Mexico: Holcim Mexico has launched its Holcim Supra range of cements. The company says that products contain a unique three-in-one technology for water repellence, construction optimisation and protection against environmental agents. It says that the use of Holcim Supra cements gives buildings greater sustainability compared to normal ordinary Portland cement (OPC).

Commercial Director Francisco Shwortshik said, “The new Holcim Supra Cement family are the latest in the market in innovation, with integrated three-in-one technology especially developed to protect buildings by reducing the passage of moisture in concrete. In addition to maintaining the attributes of the current
Holcim cement and mortar, they contribute to sustainable building by reducing CO₂ emissions by up to 13% in the process of construction, which makes it an eco-friendly product.”

Chief executive officer Jaime Hill Tinoco said, "Innovation is key to reaching our goal of zero net emissions; this is why at Holcim México we have the strongest research and development organisation in the industry to present and promote consistently high-quality materials and solutions for our clients across the country - like Holcim Supra, a family of unique products on the market that will change Mexico’s way of building.”

Turkey: Brazil-based Votorantim Cimentos has leased three ready-mixed concrete plants from Polat Beton. Dunya News has reported that the facilities are all located in Ankara, Sincan, Kayaş and Gölbaşı respectively.

Andrew 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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