Displaying items by tag: Sustainability

Denmark: Engineering company FLSmidth is working with insulation manufacturer Rockwool and the Technical University of Denmark (DTU) on a research project to develop sustainable process technologies that will increase the use of renewable fuels and raw materials and reduce CO₂ emissions. The project has received a Euro2.7m grant from Innovation Fund Denmark.

The project plans to investigate and optimise high-temperature processes throughout the entire production chain in both companies. The DTU holds experience in this field from the CHEC research centre at DTU Chemical Engineering, which has focused on combustion research and emission abatement in recent years. FLSmidth plans to explore using alternative cement formulas and production methods to enable the company to launch more efficient technologies for using renewable fuels and reducing emissions. Rockwool intends to lower CO₂ emissions and reduce its fuel consumption to make its production become more sustainable.

Japan: Taiheiyo Cement has been selected to be part of the Dow Jones Sustainability Asia Pacific Index for the fifth consecutive year. The company was first chosen in 2014. The index is the Asia Pacific version of the Dow
Jones Sustainability Indices and it serves as a benchmarks for socially responsible investment.

Colombia: Cementos Argos has been ratified for the sixth consecutive year as a member of the Dow Jones Sustainability Index (DJSI), which recognises good practices in terms of economic, environmental and social sustainability of the companies registered in stock markets. Celsia, a Grupo Argos energy subsidiary, was also included in the Dow Jones Sustainability Index for the Latin American Integrated Market (MILA) - Pacific Alliance, which recognises companies with the best economic, social and environmental practices in Chile, Peru, Mexico and Colombia. Grupo Argos and Cementos Argos were also included.

"Being ratified as world leaders in sustainability by Dow Jones is the result of our conscious investment, our commitment to a responsible operation of all our businesses, and our permanent interest to positively impact society, respecting our planet," said Jorge Mario Velasquez, chief executive officer (CEO) of Grupo Argos.

In 2018 more than 3500 companies around the world were invited to participate, but only 317 were selected as members of the worldwide DJSI.

The Global Cement and Concrete Association (GCCA) announced this week that it intends to take over the work done by the Cement Sustainability Initiative (CSI). This marks a change in how the cement industry as a whole approaches sustainability and in the wider context how the sector manages itself on the world stage.

The CSI was set up in 1999 with the aim of advancing a sustainability agenda for the cement industry. It has done this by laying out strategy for the industry to follow in the form of technology roadmaps and publishing its ‘Getting the Numbers Right’ (GNR) data on CO₂ and energy performance information. By 2018 it had 24 cement company members composed of nine core members, 14 participating members and one affiliate member. It represents around 2.4Bnt/yr of global cement production capacity or over half of the world production, according to Global Cement Directory 2018 data.

The idea behind the membership was that the core members are all members of the World Business Council for Sustainable Development (WBCSD) and that the members would contribute ‘modest’ funds to run the organisation. That last point about WBCSD membership is worth noting because members need to stick to conditions such as publishing an annual sustainability report and agree to have the sustainability report reviewed and benchmarked by the WBCSD.

Figure 1: Outline of selected current global cement organisations with a sustainability remit. Source: Association websites, Global Cement Directory 2018.

The GCCA, which formed in early 2018, says it had formed a ‘strategic’ partnership with the WBCSD and that it will take over the work previously done by the CSI from the start of 2019. Although there’s no mention so far whether GCCA members have to actually become WBCSD members with all that this entails. At present the GCCA consists of nine major international cement producers, including over half of the world’s top 10 producers by production capacity, with a production base in every inhabited continent except Antarctica. Roughly speaking it represents just under 2Bnt/yr of global cement production capacity or about half of the world’s total.

Now where this starts to get confusing is that other cement associations exist with their own established advocacy roles and sustainability agendas. The established players include the various regional associations such as the Portland Cement Association in the US, Cembureau in Europe and so forth. The multinational ones also often represent national bodies.

Then there is the World Cement Association (WCA), which formed in 2016. This independent body is a private company run out of an office in London, UK with non-profit aims. It has 45 members but only three quarters are actual cement producers. Of these most are single-country cement manufacturers. The glaring standout is China National Building Material (CNBM) and its subsidiaries, representing over half of the association’s member’s cement production capacity. The production capacity of the WCA’s members is around 1Bnt/yr or a quarter of the global total. More than half of this comes from CNBM and its subsidiaries. Unsurprisingly then that Song Zhi Ping, the head of CNBM, is the president of the WCA. It too supports a sustainability agenda, saying that it, “seeks to co-operate with the WBCSD, CSI and regional and national Cement Associations.” What is noteworthy is how few of the current members of the WCA joined the CSI previously.

There is definitely a need for a global organisation advocating sustainability issues for the cement industry and by taking over the work of the CSI and the GCCA has cornered this part of what a global cement association might do. However, the GCCA represents less cement production capacity than the CSI did. The main omissions are the Indian producers, led by UltraTech Cement, as well as others. It seems likely that they will join the GCCA following the end of the CSI but there is no guarantee.

The other point arises when looking at these various cement associations is: who does what exactly? The CSI’s focus on sustainability gave it a purpose that it did well with a genuine appearance of independence. Its narrow focus also gave it a complimentary role to the existing national and regional associations. Global bodies like the GCCA and the WCA are clearly more into advocacy territory for their members. Also, a more general association approach like the GCCA and the WCA may clash with regional bodies like the PCA and Cembureau. Regional bodies seem better suited to the way governance works globally with regional groups such as the European Union (EU) or government departments in continental sized countries such as the US, China and India. However, a truly global cement body could respond better to coordinated environmental lobbying and fill in the gaps around the world in places with looser regional representation.

Sustainability is the immediate link between the CSI, the GCCA and the WCA. Indeed the WCA recently held a ‘Global Climate Change’ forum in Paris to discuss its own climate action plan. Yet, with the GCCA taking over the work the CSI does and the WCA saying it wants to cooperate with the CSI, the obvious outcome is that the GCCA will become the world’s apex cement association. It will represent the companies with the most cement production capacity, have a presence in every inhabited continent and take the lead on WBCSD issues. Beyond this though it will be interesting to see what, if anything else, the GCCA chooses to do.

Germany: Holcim Germany’s Beckum cement plant has gained a silver sustainability certificate from the Concrete Sustainability Council (CSC). The company said that certificate is the highest that a cement plant can obtain. It certifies that the plant promotes transparency about the production process and supply chain as well as considering its impact upon the environment.

The company said that the unit is the first LafargeHolcim cement plant in the world to have CSC certification. It also plans to certify cement grinding plants and ready mix plants in Germany in the near future.

UK: The Global Cement and Concrete Association (GCCA) has formed a strategic partnership with the World Business Council for Sustainable Development (WBCSD) to facilitate sustainable development of the cement and concrete sectors. As part of the new agreement, the work carried out by the Cement Sustainability Initiative (CSI) will transfer from WBCSD to the GCCA on 1 January 2019 with activities managed out of the GCCA’s London offices. The new partnership will also create synergies between work programmes to benefit both the GCCA and WBCSD and their respective member companies.

“Transferring the activities of the CSI to the GCCA is a logical step and further underlines the cement and concrete sector’s commitment to advance sustainable development across the construction cycle. As the authoritative worldwide voice of the cement and concrete sector, the GCCA is ideally placed to take this work to the next level, building on the strong foundations established by WBCSD,” said Albert Manifold, chief executive officer (CEO) of CRH and GCCA President.

The CSI, which was established in 1999 and currently operates under the auspices of WBCSD, is a global effort by 24 major cement producers to advance sustainable development. Over its 19-year history, the CSI has focused on understanding, measuring, managing and minimising the impacts of cement production and use by addressing a range of issues including: climate change, fuel use, employee health and safety, airborne emissions, concrete recycling and quarry management.

Earlier this year South Africa’s PPC commented on the drought facing Cape Town. It said that cement manufacturing was not water intensive, that its operations were ‘totally’ self-sufficient from its own surface water sources with capacity for several months and that it was working with the local government which viewed construction as an important economic sector. Point made!

Water conservation is an established part of the sustainability toolkit for cement producers. Yet recent weather patterns in the Northern Hemisphere may also test how well companies are doing. Above average temperatures have been recorded this summer, in some places accompanied by unusually dry conditions. A news story this week about Cemex Colombia being fined for using water from a river shows one aspect of the problems that can face industrial users. Another story that we’ve covered previously has been the legal action taken against producers using water from a site near to the Katas Raj Temples in Pakistan.

Wet process cement manufacturing uses more water than dry process but even modern plants use water for cooling equipment and exhaust gases, in emission control systems such as wet scrubbers. In addition, quarrying and aggregate production may require water, and concrete production also needs water. Issues also arise with quarry dewatering and discharging water into rivers and the like. Global Cement Directory 2018 data indicates that, where known, about 10% of integrated cement plants still use a wet production method.

Graph 1: Specific water consumption by selected cement producers in 2017. Source: Corporate sustainability reports.

As Graph 1 shows there is some variation between the major cement producers with regards to how much water they use. They all operate with different types of equipment and production methods in different geographical locations so the difference between the companies is to be expected. A cement plant in northern Europe that normally experiences high levels of rainfall will have a different approach to water conservation than one, say, in a water stressed area like the Middle East. Incidentally, the definition used to define a water-stressed or scarce area is one where there is less than 1000m³/yr per person. One other point to note here is that each of the companies has a higher consumption figure than the 100 – 200L/t that the Cement Manufacturers' Association of the Philippines (CeMAP) reckoned that an average dry-process cement plant used when it was promoting water conservation back in 2013.

Looking at specific recent success stories, India’s UltraTech Cement reported a specific water consumption of 54L/t of clinker at its Star Cement plant in Dubai, UAE in 2016 – 2017 following a dedicated initiative at the site. An another milestone that UltraTech Cement was keen to point out in its last sustainability report was that three of 13 integrated plants had achieved water sufficiency though the use of the company’s 360° Water Management Model with its use of rainwater harvesting and recharging groundwater. These plants are not dependent on any groundwater or fresh water sources. The other larger cement producers all have similar water management schemes with reduction targets in place.

Climate change models generally predict hotter and wetter weather but changing weather patterns and growing populations are likely to impact upon water management and consumption. Given the integral nature of water in the cement production process, many cement producers have realised the importance of it and treat it as an input material like fuel or limestone. Hence the highlighting of water conservation in company sustainability reports over the last decade. The test for the success of these initiatives will be how producers cope in drought situations where they may be seen as being in competition with domestic users. Thankfully in PPC’s case, Cape Town avoided having to ration water to the general public, as the rains returned in the spring.

Germany: HeidelbergCement has highlighted occupational safety and research into CO₂ reduction as priorities in its sustainability report for 2017. It reduced its accident frequency rate for employees with at least one lost working day per 1,000,000 hours across cement, ready-mixed concrete and aggregates to 1.8 in 2017 from 2.2 in 2016.

“This represents a significant improvement. A large number of locations have now been accident-free for several years, while others have seen drastically reduced accident rates. Nevertheless, serious accidents still occurred in 2017. We will therefore further intensify our efforts to prevent accidents on a permanent basis,” said Bernd Scheifele, the chairman of HeidelbergCement.

The building materials producer has also singled out its commitment to reduce its specific CO₂ emissions by 30% in 2030 compared with 1990. It plans to support this by continually increasing the proportion of alternative raw materials and fuels and, wherever possible, to make its production processes more efficient. In addition, HeidelbergCement has invested in research programmes on carbon capture and its utilisation as a raw material. In 2017, it spent Euro141m on research and technology, an increase of around Euro24m from 2016.

Following HeidelbergCement’s acquisition of Italcementi in 2016 its CO₂ emissions have increased. Its specific net CO₂ emissions (per tonne of cementitious material) rose by 1.9% year-on-year to 609kg Co₂/t in 2017 from 598 kg Co₂/t in 2016. Its overall proportion of alternative fuels has also decreased slightly dropping to 20.8% from 21.4%. However, its specific energy consumption for cement and clinker continued to fall in 2017.

UK: Hanson UK’s sustainability report for 2017 shows that its CO₂ emissions per tonne of product have fallen by 7.2% to reach the lowest level for five years. However, the subsidiary of Germany’s HeidelbergCement may face issues meeting its target of a 10% reduction by 2020 from its 2010 figures as its CO₂ emissions from production have rise by 5.7% since 2010.

Overall, the company described 2017 as a year of ‘solid’ progress. It passed its 2020 targets for reducing both mains water use and waste to landfill. The number of lost time injuries remained static at 21, but the frequency rate was down on the prior year and there was a three-month unbroken spell without a lost time injury. The building materials producer also launched HeidelbergCement’s Sustainability Commitments 2030, including a set of targets for the group to achieve by 2020.

Sweden: Cementa, a subsidiary of HeidelbergCement, has handed its environmental roadmap to Minister of Trade and Innovation Mikael Damberg and Deputy Prime Minister and Climate Minister Isabella Lövin. The initiative is part of the Fossil-free Sweden plan to coordinate reduced reliance of industry on fossil fuels and increased competitiveness.