Cement News tagged under: environment

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Moving on to the next decade

22 August 2012, Published under Cement News

Ten years after publishing its first Agenda for Action in 2002, the Cement Sustainability Initiative (CSI) has launched its 2012 CSI Progress Report. Philippe Fonta, managing director of the Cement Sustainability Initiative, takes a look back at the cement industry’s progress towards delivering on this agenda and ahead to the changing business and social environment in which it operates. The CSI Progress Report Over a decade ago, a group of leading cement companies came together...

Building on achievements

06 August 2012, Published under Cement News

In its recently-published Corporate Sustainable Development Report 2011, Holcim tracks its progress in achieving its sustainability targets. For the company’s new CEO, Bernard Fontana, sustainable development remains at the core of the group’s operations worldwide. The need for energy security and cost reduction leads cement producers such as Holcim to consider a wider range of energy options Holcim’s current energy policies place the reduction of greenhouse gases (GHG) at th...

Behind the numbers

30 July 2012, Published under Cement News

The Cement Sustainability Initiative’s “Getting the numbers right” project has seen the creation of a sizeable and influential database on cement plant emissions and energy consumption, which has just been updated with 2010 data. Phil Kerton of CPK Consultancy, UK, takes a first look at some of the interesting values and trends that can be extracted from this important resource. It is the sixth year that the Cement Sustainability Initiative publishes data on cement industry CO2 emissi...

Protecting biodiversity

11 June 2012, Published under Cement News

Quarrying limestone for cement can result in global extinctions of little-known biodiversity if appropriate surveys are not undertaken prior to the quarry opening and if impact avoidance, mitigation and offset measures are not put in place as part of the quarry’s environmental management plan. Tony Whitten, Fauna & Flora International, UK, considers the issues at stake. Karst limestone creates some of the most beautiful and memorable landscapes in the world. Credit: Zhao Wenqing ...

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...