Global Cement News

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.

US: Cementos Argos has appointed Bill Wagner as the vice president of its US operations. Wagner, a US national, is a graduate of Georgia Southern University. He holds over 35 years of industry experience and is on the board of directors of the National Ready Mixed Concrete Association. He joined Cementos Argos in 2014 and worked as the head of its US concrete business.

Thailand: Siam Cement Group has appointed Thammasak Sethaudom as its Vice President-Finance & Investment. He succeeds Chaovalit Ekabut. The appointment will take affect from 1 September 2018.

US: Ametek Brookfield has appointed Hitesh Shah as Global Vice President Sales. He holds over 25 years’ experience in sales and executive positions in North America, India, the Middle East and Asia. He has worked for General Electric, Meggitt Sensing Systems and most recently served as Global Sales Director with Novanta. Hitesh has a graduate degree in Mechanical Engineering. He also served on the engineering faculty at the Maharaja Sayajirao University of Baroda in India.

Thailand: Siam Cement Group’s sales revenue from its cement business rose by 4% year-on-year to US$2.74bn in the first half of 2018. Its profit grew by 8% to US$125m and its earnings before interest, taxation, depreciation and amortisation (EBITDA) increased by 4% to US$355m. The cement producer said that the country’s demand for Ordinary Portland Cement (OPC) rose by 2% year-on-year in the second quarter of 2018 due to an increase in demand from the public sector. Overall the company’s sales revenue grew in the first half of 2018 but its profit and earnings fell due to currency variations and increasing cost of input chemicals.