Displaying items by tag: Cement Sustainability Initiative

The Portland Cement Association (PCA) has launched a new website to promote the US cement industry’s progress towards net zero. It’s always interesting to see the different approaches the various associations around the world take in promoting the sector especially in response to mainstream media coverage that has often taken a negative view of cement and concrete. As sustainability thinking has permeated into society the stereotype that cement production releases vast amounts of CO₂ for little gain has been a hard one to shake off. Readers can draw their own conclusions on how well the PCA site works by looking at cementprogress.com.

Make no mistake, the PCA’s new website is a marketing tool designed to bring out some of the points of its carbon zero roadmap to a wider audience. Yet it is refreshing to see a national association website attempting to tell the general public what progress the cement industry is making towards reducing its CO₂ emissions. Unfortunately, it then avoids giving out any data that presents an overview of how it’s all actually going. This may come with time though as the roadmap was only released in late 2021. One number that does stick out on the site is that the PCA uses the Environmental Protection Agency’s (EPA) carbon emissions data to calculate that the manufacture of cement accounts for 1.25% of total CO₂ emissions in the US. This is lower than the global figure of 7% that is often used from the Center for International Climate and Environmental Research - Oslo’s (CICERO) research. Both figures appear to be broadly correct based on the available data.

The real story here is to showcase the wide range of actions the PCA is taking as part of its roadmap. In the cement section, for example, the PCA is rightly able to demonstrate its recent work driving the transition to Portland Limestone Cement (PLC) production in the US. This then leads on to the usual beats of resilient construction, carbonation and a ’whole society’ approach to tackling the decarbonisation of the cement industry with suggestions that everybody from citizens to contractors to policy makers can do.

The wider context is that the big challenge facing cement advocacy groups today is that sustainability is a global issue but that such groups have generally been national or regional for most of their history. The national or regional cement associations have existed for decades serving the local needs of their members. This started to change in 1999 when the Cement Sustainability Initiative (CSI) was created with its global approach to sustainability for the sector with its data gathering and technology roadmaps. In the 2010s global media attention started to focus on the large share of CO₂ emissions the cement industry was emitting as, coincidentally, China became the world’s largest cement producer. Then in the late 2010s the two global cement associations - the Global Cement and Concrete Association (GCCA) and the World Cement Association (WCA) - emerged with the GCCA taking over what the CSI did previously.

One problem that the PCA and the other associations face is that decarbonising the cement and concrete sectors is hard to do, expensive and will take decades. Until, or if, carbon capture is suddenly conjured up at scale, all of this work is inherently seen as boring by much of the media compared to, say. young photogenic environmental activists supergluing themselves to roads. One way to fight back against this is to show progress font-and-centre and to try and take back control of the narrative. This appears to be what the PCA is trying out in a more direct fashion than usual. The risk though is that any action by an industry-backed lobbying group to show off the work it is doing will simply be labelled as greenwashing, whether it’s fair or not. Of course, some environmentalists indulge in their own reverse version of this (industry staining?) to make the powerful but simple argument about the necessity of cutting CO₂ emissions but without taking fully into account or underplaying the scale of the societal changes necessary to do so. Either way, the cement industry and its advocates have an uphill struggle on their hands in the years ahead. This may require fresh thinking about how to win over hearts and minds.

The March 2023 issue of Global Cement Magazine includes an interview with Claude Lorea from the Global Cement & Concrete Association (GCCA)

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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Mexico: Cemex says that Carbon Trust has validated its roadmap to decarbonise global operations in line with the Sectoral Decarbonisation Approach (SDA) 2-degree scenario (2DS) developed by the International Energy Agency (IEA). The validated roadmap is intended to help the company to achieve a 35% reduction of net carbon emissions by 2030. The findings validate Cemex's roadmap for reducing Scope 1 and 2 emissions.

The Carbon Trust has assessed the technical feasibility of the plan based on guidelines defined by international institutions including the International Energy Agency, the Cement Sustainability Initiative, and the European Climate Research Alliance. The CO₂ reduction methods include the use of alternative fuels, using decarbonated raw materials, renewable power projects, and novel cements, among others. The validation also included a review of Cemex's commitment to implement the scheme based on governance mechanisms and business planning.

“The magnitude and complexity of change required by a company such as Cemex to decarbonise its global operations is significant. Our assessment provides the organization’s management, investors and stakeholders with an independent validation that its commitments are backed up by sound assumptions and planning,” said Aleyn Smith-Gillespie, Associate Director Advisory at the Carbon Trust.

India/UK: The Global Cement and Concrete Association (GCCA) has launched GCCA India. As part of GCCA’s strategic partnership with the World Business Council on Sustainable Development the new office, based in Mumbai, will take over the work of the Cement Sustainability Initiative (CSI) India, which formerly served as the sector’s sustainability alliance.

GCCA India plans to ensure that, from a sustainability angle, innovation in technology and manufacture, and collaboration across the wider built environment, the Indian cement sector can play a key leadership role. It will develop a work program that will focus on the wider global GCCA priorities but with practical application across the Indian built environment.

India: UltraTech Cement aims to increase contribution of so-called ‘green energy’ to 25% of its total power consumption by 2021 from 10% at present. It also intends to raise its contribution of renewable energy to its total power consumption by five times in the next two years to 2021 to over 10%. By building capacity for renewable power the cement producer intends to become one of the largest users of renewable energy in the Indian cement sector.

In addition to renewable energy, the green energy contribution includes energy generated through waste heat recovery systems (WHR). During its 2019 financial year UltraTech commissioned 28MW of WHR systems to take its total generation from WHR to 8% of total power consumption. Further upgrades are expected to be completed in a phased manner by 2021, taking its WHR share to 15% of its total power requirement.

“To bring the cement sector in line with the Paris Agreement on climate change, UltraTech Cement’s annual emissions will need to fall by at least 16% by 2030. There are a number of solutions for reducing emissions associated with cement production as identified by the latest Low Carbon Technology Roadmap published by International Energy Agency (IEA) in partnership with Cement Sustainability Initiative (CSI). These solutions need to be deployed at scale to meet the decarbonisation challenge,” said K K Maheshwari, the managing director of UltraTech Cement.

UltraTech Cement has set a target to reduce its CO₂ emissions by 25% from its 2005 – 2006 level by 2021. The company is also working on CO₂ reduction strategies including energy efficiency, alternative fuels, WHR, renewable energy and reducing its clinker ratio.

Brazil: The National Union of Cement Industry (SNIC) and the Brazilian Portland Cement Association (ABCP) have launched a Cement Technology Roadmap to 2050. SNIC president Paulo Camillo Penna said that the document would help the local industry cut its carbon footprint in the medium and long term. The roadmap was developed with the International Energy Agency (IEA), the Cement Sustainability Initiative (CSI) of the World Business Council for Sustainable Development (WBCSD), the International Finance Corporation (IFC) of the World Bank and a group of academics led by José Goldemberg.

The roadmap intends to reduce specific CO2 emissions by over 30% to 375kg CO2/t of cement in 2050. Key actions to 2030 include strengthening national and international cooperation, promoting new cement standards, raising the clinker substitution rate, promoting the use of alternative fuels in compliance with the National Policy on Solid Waste (PNRS), sharing best practive in energy efficiency and promoting resaerch and development in new greenohuse has mitigation technologies.

Fascinating information came out of LafargeHolcim last week as part of its Capital Markets Day 2018. The building materials company said it is expecting sales growth to slow in 2019 but earnings to grow. Jan Jenisch, the chief executive officer (CEO), said that the group was ‘aggressively’ moving forward in aggregates and ready-mix concrete. Alongside this, its recent divestment of its Indonesian operations was declared a ‘major’ milestone in focusing its portfolio and cutting down on debt.

Graph 1: LafargeHolcim’s major product lines by sales (%), 2015 – 2017. Source: Company reports.

Graph 1, above, gives a good idea of how LafargeHolcim has been changing its business. Cement sales as a percentage of total sales have been cut to 60% in 2017 from 67% in 2015. Ready-mix concrete and other sales (including asphalt) have risen to 26% from 19%. Aggregate sales have stayed at around 14%. If the world is making too much cement then LafargeHolcim is switching to concrete and balancing out its supply chain. Naturally, this was backed up in one of its investor presentations showing a more even split in the world building materials market between cement, concrete and aggregates. This fits with Jenisch’s background as the former head of Sika. That company manufactures a wide range of specialty chemicals for the construction and automotive industries.

That shift in focus could also be seen at the inaugural Global Cement and Concrete Association (GCCA) event in late November 2018 where concrete was very much the centre of attention from a sustainability angle. The main companies involved with the GCCA are vertically integrated ones and, by switching its product balance, LafargeHolcim seems to be moving in the same direction. In a sense this is a continuation of the synergy-seeking that was promised when Lafarge and Holcim merged in 2015.

Graph 2: Forecast cement demand growth in LafargeHolcim markets. Source: LafargeHolcim investor presentation 2018.

The other interesting question for LafargeHolcim is where next for growth? The graphic above shows a number of promising areas, including India and east Sub-Saharan Africa. Also, note the slowdown forecast for China. That renewed faith in India is timely this week given the expectation by the Indian Cement Manufacturers Association that cement demand growth in the country will rise by at least 10% in the current financial year to March 2019. If the momentum holds up after a strong first half then it will mark the fastest increase for the region since the market slowed down in 2011. LafargeHolcim doesn’t appear to be on course to grow significantly in India anytime soon but it has major ‘skin in the game’ in a promising market.

Another indication of the vibrancy of the Indian market also came this week from the Cement Sustainability Initiative (CSI) with the results of a status review from its low carbon technology roadmap (LCTR). The results were fairly good for such a large industry, with falling CO₂ emissions intensity, growing co-processing rates and a decreasing clinker factor. This report carried a sad note given that the work that the CSI does will be taken over by the GCCA in January 2019. However, if this is the last we’re going to hear from the CSI, then they’ve left on a high note.

Lastly, leafing through old financial reports may not be everybody’s idea of a good time but it does let one see how LafargeHolcim’s product mix has changed. It also gives one time to catch up with old faces. Like Bruno Lafont and Eric Olsen. Once again those two former executives popped up in the latest twist of the on going Lafarge Syria legal case as a group of Yazidi women have applied to become ‘civil parties’ in the case. Whether the war crimes inflicted upon the Yazidis can be pinned on Lafarge Syria remains to be seen. Yet, for all of the LafargeHolcim’s business reorganisation, its predecessor’s conduct in Syria continues to make headlines. However much progress the company makes in turning around its fortunes, if it can be, this will continue to overshadow everything. Once a line is drawn under the affair then LafargeHolcim can move on properly.

India: A report by the Cement Sustainability Initiative (CSI) shows that the local cement sector is on track to meet its 2030 targets from the low carbon technology roadmap (LCTR). Direct CO₂ emission intensity fell by 5% in 2017 in the Indian cement sector compared to the 2010 baseline. CO₂ emission intensity, including onsite or captive power plant (CPP) power generation, was reduced by 6.8% compared to the 2010 baseline. The alternative fuels thermal substitution rate (TSR) increased by 5 times from 2010 to 2017. The sector consumed more than 1.2Mt of alternative fuels in 2017.

“Sustainability is a journey, not a destination. In our globalised and interconnected world, no one can solve alone the challenges ahead of us and the only opportunity to succeed is through collaborative partnerships, where the common interests of all are considered as more important than the sum of individual interests. This is exactly the spirit that has animated the CSI’s low carbon journey since 1999. This flagship project - with its members - has developed, implemented and shared collective solutions for measuring, reporting and improving its greenhouse gas reduction performance, year after year,” said Philippe Fonta, managing director CSI.

The CSI and the International Energy Agency (IEA) worked with nine local CSI member companies - ACC, Ambuja Cements, CRH, Dalmia Cement (Bharat), HeidelbergCement, Orient Cement, Shree Cement, UltraTech and Votorantim Cimentos - to carry out the status review on the sector’s performance trends, continuous implementation measures and notable achievements based on the milestones set in the 2013 LCTR. The Status Review Report was developed in consultation with Confederation of Indian Industry (CII), with support from International Finance Corporation (IFC) and the Cement Manufacturers Association (CMA).

The findings of the report show that the direct CO₂ emission intensity was reduced by 32kgCO₂/t cement to 588kgCO₂/t cement in 2017 mainly due to an increased use of alternative fuel and blended cement production, coupled with a reduction in clinker replacement factor. However, the study also shows that significant efforts will be needed to meet the 2050 objectives of 40% reduction. The CO₂ emission intensity (including onsite or CPP power generation) has reduced by 49kgCO₂/t cement to 670kgCO₂/t cement in 2017 compared to the baseline year. The report has highlighted the adoption of waste heat recovery (WHR) systems by local cement plants.

The alternative fuels TSR increased to 3% in 2017 from 0.6% in 2010. More than 60 cement plants in India have reported continual usage of alternative fuels, with 24% of the total alternative fuels consumed as biomass. The share of blended cements used in the total quantity of cement manufactured increased to 73% in 2017 from 68% in 2010, largely due to the market’s growing acceptance of blended cement, emerging awareness of sustainability concepts, the availability of fly ash from thermal power plants and the use of advanced technology. The production of Pozzolana Portland Cement grew to 65% in 2017 from 61% in 2010. The share of Portland Slag Cement in cement production remained flat, at less than 10%, over the same period. The clinker factor reduced to 0.71 in 2017 from 0.74 in 2010.

In August 2018 the Global Cement and Concrete Association (GCCA) said it was taking over the work previously done by the CSI from 1 January 2019.

Chief executives from over 30 companies attended the Global Cement and Concrete Association (GCCA) inaugural event last week in London. Its first president Albert Manifold, the chief executive officer (CEO) of CRH, laid out the line by saying that, “For the first time we have a global advocacy body.” He followed this up by emphasising that ‘our product’ is the most used man-made product in the world. Just like the Cement Sustainability Initiative (CSI), the body the GCCA is partly-replacing, it is a CEO-led organisation. The target is very much about giving a global voice to the cement and concrete industries and the vertically integrated companies that produce these products.

Along with the head of CRH, the leaders of LafargeHolcim, HeidelbergCement, CNBM, Votorantim, Buzzi Unicem and Eurocement, amongst others, were all on the attendance list too. That kind of representation gave the event a charged air and a real sense of intent. At present the association says it represents 35% of global cement production and its aim is to reach 50%. That compares to the 30% base that the CSI had.

Representatives from some major cement associations were also present, including Europe’s Cembureau, the Federación Interamericana del Cemento (FICEM), the Canadian Cement Association and the VDZ. The only thing stopping the US Portland Cement Association being there was reportedly the Thanksgiving holiday. Although not comprehensive, that kind of representation suggests serious interest from the regional cement associations. The word from the GCCA CEO Benjamin Sporton was that the GCCA is here to provide a global level of coordination to the advocacy and sustainability side of the industry dealing with global organisations like the United Nations (UN), development banks, other associations and non-government organisations (NGOs).

How this will work in practice has yet to be seen, but at the very least, the GCCA can take over the work of the CSI and run with it. The word from the attendees we spoke to was uniformly positive for the association. It was seen as a long-overdue move to finally give the industry some sort of uniform voice at a global scale. In this sense it is catching up with similar bodies in industries like wood and steel. One benefit from moving from the CSI to a full advocacy organisation is that the industry can actually talk about the good things it does rather than being limited to sustainability and environmental data reporting. It seems like a small change in focus but it’s a big shift in mind-set.

A cynic might suggest that the exercise is one of a dirty industry trying to wrest the Overton window, or window of public discourse, back from legislators facing mounting environmental pressure. The latest UN Emissions Gap Report for 2018, for example, reported this week that CO₂ emissions rose in 2017 after four consecutive years of decline. This is the latest environmental report in a long line pointing out bad news. Yet, the GCCA’s unwritten mantra, that concrete improves lives, is sound. Somebody or something needs to link it all up. That somebody might just be the GCCA.

A review of the inaugural annual general meeting and symposium of the GCCA will be published in a forthcoming issue of Global Cement Magazine.

India: Mahendra Singhi, the group chief executive officer (CEO) of Dalmia Cement, says that the company aims to be carbon negative by 2040. Singhi made the announcement at the Global Climate Action Summit in San Francisco, US, according to the Indo-Asian News Service. The cement producer is planning to increase its low-carbon product portfolio and use more ‘green’ fuels and raw materials in all of its 14 plants in India.

Dalmia Cement is the first Indian cement company to join RE 100 and it is committed to a target of 100% renewable electricity use. Singhi said that the major challenge is to convert the climate risks into business opportunities while sustaining business growth for the benefit of present as well as future stakeholders. Singhi was previously the Indian co-chair of the Cement Sustainability Initiative (CSI).

Singhi said that Dalmia Group has been able to reduce carbon dioxide emissions to 526kg/t of cement on a group average and to 342kg/t in its eastern operations. According to the CDP (formerly Carbon Disclosure Project) cement sector report in April 2018, Dalmia Bharat achieved the first rank in CDP's low carbon transition league.