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Lucideon Produces Generic Carbon Footprint Report for the UK Clay Brick Manufacturing Sector

Lucideon, the international provider of materials development, testing and assurance, and formerly known as Ceram, was commissioned by the Brick Development Association (BDA) to produce a generic carbon footprint (cradle to customer) report for the UK clay brick manufacturing sector.

Stoke-on-Trent, United Kingdom, March 19, 2014 --(PR.com)-- The manufacturing of clay bricks is energy intensive; high use of natural gas in kilns and “process emissions” as a result of thermal decomposition of clays, hence the carbon footprint of clay brick production, expressed as tCO2e/t (tonnes of CO2 equivalent per tonne of fired bricks) is of great interest to the sector and end-users.

The report, published in late 2013, is based on production data from 2011, and compares this to the 2008 data, thus highlighting changes in the carbon impact profile in the intervening years. For the most part, the carbon footprint report indicates that emission levels remained comparatively similar; however, the 2011 generic footprint for the UK clay brick sector was 0.252 tCO2e/t, a slight increase on the 0.244 tCO2e/t reported for 2008.

A direct comparison between the 2008 and 2011 data sets would have been ideal, unfortunately the economic downturn led to 4 of the original 12 works ceasing production, before the 2011 production year. In order to maintain the number of reporting brickworks, alternative brickworks were identified as replacements. As no two brickworks are the same, it is possible that the change in reporting sites influenced the results, above and beyond what would have been seen through changes in the operation of the brickworks.

The carbon emission contributions were split into specific areas of impact: raw materials, production process, Head Office contribution (including company cars and business travel) and delivery to the client/building site.

Putting the results into context, the main impact in terms of carbon emissions resulted from the production process, electricity used and fossil fuels burned in the kilns; this accounts for approximately 64% of the carbon footprint. At 31%, the raw materials are the next highest contributor based on the emissions resulting from the presence of naturally occurring organic carbon in the clays, or through the thermal decomposition of limestone, chalk and fossils, all of which are typically composed of the mineral Calcite (calcium carbonate -CaCO3). At high temperatures, Calcite breaks down to calcium oxide (CaO) with carbon dioxide (CO2) being evolved as a gas in the kiln atmosphere. Not all clays contain these calcium carbonate based minerals and therefore the raw material contributions can vary significantly from one clay deposit to another. Carbon emissions resulting from the transport from the factory gate to the client’s building site or merchant’s yard account for around 5% of the carbon footprint, whilst the Head Office contribution is typically less than 1% of the total carbon footprint, even when business travel is included.

The author of the report, Dr Andrew Smith, Head of Sustainability and Construction Materials, commented:

“The overall results appear to reflect the transition from the major production downturn in 2008/2009 and into the lower, but more stable production levels in 2011, approximately 30,000 tonnes per annum lower. This lower level of production would therefore appear to be “sub optimal” and thus the impact from the production process appears to be the underlying cause for the increase in the overall generic carbon footprint.”

For information about Lucideon’s Carbon Footprinting services, visit www.lucideon.com/carbon.

About Lucideon
Lucideon is a leading international provider of materials development, testing and assurance.

Through its offices and laboratories in the UK, US and the Far East, Lucideon provides materials and assurance expertise to clients in a wide range of sectors, including healthcare, construction, ceramics and power engineering.

The company aims to improve the competitive advantage and profitability of its clients by providing them with the expertise, accurate results and objective, innovative thinking that they need to optimise their materials, products, processes, systems and businesses.
Contact Information
Lucideon
Katie Armitt
+44 (0)1782 764326
Contact
www.lucideon.com

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