Cement News tagged under: clinker substitution
Clinker substitution takes hold in Africa12 May 2023, Published under Cement NewsGhana's cement producers have struck out on a decarbonisation and low-carbon cement path. By using local resources for raw materials and reducing the clinker factor, cement manufacturers are targeting reduced imports of clinker and lower cement prices, as well as the benefits of CO2 reduction. This week the Director-General of Ghana Standards Authority, Professor Alex Dodoo, confirmed that plans are underway to build factories that can manufacture a substitute for clinker. "We have publishe... |
Can alternative raw material usage be better implemented?27 January 2023, Published under Cement NewsCEMBUREAU's recent webinar on '2050 ambitions and the role of secondary materials in the European cement sector' indicated how challenging it will be to meet the CEMBUREAU 2050 Carbon Neutrality Map decarbonising targets through an increased uptake of alternative raw materials (ARMs). While Europe has clear sustainable and net zero ambitions, enshrined in its Green Deal legislation, obtaining these goals has several barriers regarding the availability of materials, political challenges or so... |
Clay calcination – accelerating cement’s green transition30 August 2021, Published under Cement NewsWith the cement industry’s goal of working towards saving the planet, FLSmidth proposes a simple switch: replace 30 per cent of clinker with calcined clay for up to a 40 per cent reduction in CO 2 emissions. In this article the company outlines why the move is not only smart and efficient but is something almost every cement manufacturer could do right now. By Steven Miller, FLSmidth, Denmark. Figure 1: FLSmidth’s clay calciner system With seven per cent of all global carbon em... |
The potential of activated clays in cement10 August 2021, Published under Cement NewsOne of the pathways to a more sustainable cement industry is the reduction of the clinker factor in cement. The use of thermally-activated clays not only reduces the clinker content but also lowers CO 2 emissions as a result of dihydroxilation instead of dicarbonation and other energy savings. By Dr Carlos Aramburo, Carlos Aramburo Consultant, Colombia; Luiz Felipe de Pinho, Dynamis, Brazil; Dr Rafael Talero, SACACH SL, Spain, and M Pilar de la Torre, Carlos Aramburo Consultant, Spain. ... |
Chip Mong INSEE Cement: key steps to sustainability20 October 2020, Published under Cement NewsFor Cambodia-based producer Chip Mong INSEE Cement Corp (CMIC) sustainability has always been a key priority. Its 2Mta cement plant, located 125km southwest of Phnom Penh, is designed and operated to minimise environmental impact with equipment that is selected to reduce energy consumption. The company is now well advanced in the development of a greener cement portfolio and committed more than ever to becoming the sustainability benchmark for the Cambodian industry. By Chip Mong INSEE Cemen... |
Bringing on the substitutes18 July 2018, Published under Cement NewsAs part of its drive to reduce its CO 2 emissions, Votorantim Cimentos is using a range of clinker substitutes to lower its clinker-to-cement ratio. As a result, around 86 per cent of its product portfolio in Brazil has a reduced carbon footprint, lowering its impact on the environment. By Silvia R S S Vieira, Votorantim Cimentos, Brazil. The use of substitute materials such as acidic slags (pictured: maganese slag) and calcined clay is key to reducing a cement plant’s carbon foot... |
Gaining in strength30 January 2017, Published under Cement NewsAs cement companies aim to lower their carbon footprint by reducing the clinker factor in their final product, clinker substitution features high on the agenda. The use of silica fume and rice husk ash provide options to replace clinker without affecting compressive strengths of cement mortars. By Feryal Çelik, Mardin Çimento, Turkey. Laboratory research at Mardin Çimento showed the effect of silica fume and ruce husk ash on cement mortar strength Silica fume and rice husk ash a... |
Cement plants of the future18 November 2013, Published under Cement NewsIn the first of a series of articles for ICR, Kline Consulting explores the impact that reducing carbon emissions could have on the design of cement plants of the future. The three traditional CO2 reduction levers – namely energy efficiency (fuel and power), fuel CO2 reduction and clinker substitution – will all be considered in detail, as will the role of carbon capture technologies. In this first article, the author focusses on clinker substitution and the changes that may be required to e... |
Reducing India's CO2 footprint19 June 2013, Published under Cement NewsIndia’s rapidly-expanding cement industry can reduce its carbon emissions by nearly half by 2050, according to the technology roadmap published by the International Energy Agency and the World Business Council for Sustainable Development. However, reducing the sector’s carbon footprint will require many varied steps and a joint effort by its stakeholders. India’s cement industry can be considered, by some measures, one of the most efficient in the world and it has made great stride... |
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