Cement News tagged under: alternative raw materials
Cemex participates in cross-sector EPOS project15 September 2017, Published under Cement NewsCemex is participating in the European Union supported EPOS project designed to foster cross-sector industrial symbiosis. The project will highlight case studies exemplifying ways for companies to use wastes from other industries to deliver greater efficiency, save raw materials and contribute to more sustainable processes. Cemex’s South Ferriby cement plant in the UK has already worked with the UK-based INEOS chemical company, to determine how waste from INEOS’s production could be used ... |
SPL: lessons learned26 September 2016, Published under Cement NewsSpent pot lining (SPL) generated by the aluminium industry forms an important alternative source of fuel and raw material for the cement industry. However, its use presents certain challenges in terms of the cement production process and final product quality. By Dr Kåre Helge Karstensen, Foundation for Scientific and Industrial Research (SINTEF), Norway. With a worldwide generation of around 1.45Mta, SPL provides a significant resource for the cement industry The worldwide prod... |
United States: Sunrise reports progress on Pozz Ash project16 August 2016, Published under Cement NewsSunrise Resources has said that it has made “positive progress” in the development of its natural pozzolan Pozz Ash cement, Proactive Investors reports. Based on preliminary results from a concrete producer testing the product, Sunrise has concluded that Pozz Ash has good commercial potential providing the cement’s clay content can be reduced. |
The SEACON project01 June 2016, Published under Cement NewsThe SEACON project is a new research initiative into the production of an innovative concrete, containing high-chloride constituents (ie, cement, water and aggregates) in combination with non-corrosive reinforcement. This paper shows goals and preliminary results of one of its work packages. By Federica Bertola, Fulvio Canonico and Manuela Bianchi, Buzzi Unicem, Italy, and Antonio Nanni, University of Miami, USA. Figure 1: partners and collaborators of the SEACON project The SEA... |
Co-processing – here to stay16 December 2015, Published under Cement NewsCo-processing is a major topic for this edition of ICR and, of course, an increasingly major theme for the world cement industry. One of the roles of the Technical Forum is to explain the technology and terminology deployed in the cement manufacturing industry, so this month we will take co-processing as our topic. Co-processing enables further use of waste products such as tyres, avoiding landfill or dumping What do we mean by ‘co-processing’ in the cement industry? Essentially... |
Out of aluminium waste23 February 2015, Published under Cement NewsTo reduce natural raw material use, the cement industry is increasingly considering byproducts from other industrial processes such as spent pot liners supplied by the aluminium industry. However, these often need to be refined to adapt them to the demands of the end-product. By Dr Yves C Zimmermann, Regain Services Pty Ltd, Australia. Figure 1: molar alkali-sulphur balance in Portland cement clinker Refined byproducts derived from the primary aluminium industry’s spent pot lini... |
Brazil: alternative raw materials usage among 'best in the world'09 February 2015, Published under Cement NewsThe proportion of alternative raw materials used in Brazilian cement is one of the best in the world, country's leading cement producer reports, citing domestic construction industry association SNIC. “Brazil has one of the highest clinker substitution rates in the world and this is due to industry research and the development of technologies to incorporate natural substitutes and even steel industry dejects into cement manufacture”, says Edvaldo Rabelo, executive director of energy, sustai... |
Cement at the heart of Europe13 May 2013, Published under Cement NewsA recent study by the Boston Consulting Group for CEMBUREAU claims that the cement industry has a key role to play in helping Europe achieve its goals of developing a sustainable, resource efficient and innovative society. ICR looks at the current challenges facing the region’s cement producers and what action its policymakers can take to help them remain competitive. Putting cement at the heart of Europe: the application of green concrete at the Royal Danish Playhouse in Copenhagen, ... |
Balancing volatile behaviour28 May 2012, Published under Cement NewsFollowing on from last month’s Technical Forum about the impacts of alternative fuels and raw materials, Dr Michael Clark examines the effect on kiln emissions, using the mass balance of the cement kiln as a starting point. Metallic mercury and mercury compounds are too volatile to pass down the preheater into the rotary section of a kiln What goes into the cement kiln must either come out in the clinker product or the emissions from the kiln, or it must be retained and built... |
Using alternative raw materials18 April 2012, Published under Cement NewsThe changes made to the production process of a cement plant by utilising different alternative raw materials can not only alter the dynamics of how a plant operates but can also affect the cost of production and cause blending and handling problems, says Arthur Harrisson. The addition of supplementary raw material alternatives such as foundry sand can also add difficulties when seeking to achieve a sufficiently fine raw mix. Switching from limestone to alternative raw materials can a... |