Cement News tagged under: clinker substitution

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Bringing on the substitutes

18 July 2018, Published under Cement News

As 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 strength

30 January 2017, Published under Cement News

As 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 future

18 November 2013, Published under Cement News

In 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 footprint

19 June 2013, Published under Cement News

India’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...