Cement News tagged under: environment

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Multi-component cements

04 June 2012, Published under Cement News

Given increasingly-stringent environmental legislation, cement producers are actively seeking to reduce their CO2 emissions. One way of lowering such emissions is by reducing the clinker factor in cement. While adding a further component to clinker is nothing new, more recently, cement companies have started to consider a more flexible approach, adding more than one component. This is giving rise to ‘multi-component’ cements. Reiner Härdtl of Heidelberg Technology Center, Germany, explains. ...

Multi-component cements

04 June 2012, Published under Cement News

Given increasingly-stringent environmental legislation, cement producers are actively seeking to reduce their CO2 emissions. One way of lowering such emissions is by reducing the clinker factor in cement. While adding a further component to clinker is nothing new, more recently, cement companies have started to consider a more flexible approach, adding more than one component. This is giving rise to ‘multi-component’ cements. Reiner Härdtl of Heidelberg Technology Center, Germany, explains. ...

MACT compliance: back to basics

03 May 2012, Published under Cement News

Fundamental changes are taking place in the US cement industry with regards to emissions control regulations or Maximum Achievable Control Technology (MACT) which will lay the foundations of standards in the next century. With such complex legal requirements now being placed on US cement producers it is essential that they are fully aware how to become MACT compliant. DR Uhr of Ducon Technologies Inc, USA, explains. Standard Technology, Potential MACT: inlet gas is hot, containing m...

Iraq’s sustainable development

25 April 2012, Published under Cement News

As a global company, Lafarge has committed to lighten its environmental footprint worldwide. Its industrial ecology concept comes as an answer to some environmental challenges linked with cement production, while providing a service to the local community. Its potential is not restricted to cement plants supplying mature economies, but also to emerging nations such as Iraq. Amr Elkady shares the company's sustainable vision. Lafarge operates the state-owned Bazian and Tasluja cement p...

Celitement – an alternative

22 November 2011, Published under Cement News

It is apparent that cement companies are actively searching for ways to reduce their CO 2 emission levels and their energy consumption in the pursuit of more efficient production. Research in this way has led to the development of alternative products to Ordinary Portland Cement (OPC), including Celitement, that are based on SiO 2 and CaO containing standard raw material. While it has many of the attributes of OPC, Celitement also has the benefits of lower energy demands and reduced CO 2 ...

Cement under the EU ETS

24 October 2011, Published under Cement News

The 2005 European Union Emissions Trading Scheme (ETS) covers some 11,300 factories and power stations across 10 industrial sectors in 30 countries, involving almost half of Europe’s carbon emissions. It sets a declining cap on total industrial emissions. Emissions allowances (EUAs) are provided to companies regulated by the scheme, and each of them must measure and report emissions and surrender one allowance for each tonne of CO2 emitted. Surplus allowances can be traded to others, providi...

Sustained efforts

24 October 2011, Published under Cement News

With global climate change on the top of the agenda, cement companies are making sustained efforts to reduce their environmental footprints. ICR reviews the latest offering of corporate sustainability reports and highlights their key advances. With today’s global climate change debate on the top of the agenda, cement companies worldwide are acutely aware of the need to reduce their environmental impacts. But improving energy efficiency and reducing their carbon footprint is only part of t...

Threat or opportunity?

21 October 2011, Published under Cement News

As the US Environmental Protection Agency gears up to introduce new environmental protection legislation, the local cement industry assesses the potential impact and vocalises its concern over plant closures and high compliance costs as well as job losses and environmental benefits. But can these threats also be seized on as an opportunity to modernise the sector and transform it into a more competitive player? ICR debates the issues. Holcim Ste Genevieve, Missouri: seizing the opport...