Latest CO2e values for concrete
As part of the Concrete Industry Sustainable Construction
Strategy our commitment is to provide the most transparent life
cycle assessment data which is compliant with the developing codes
and standards. This is reflected in the recent update by the cement
sector of “Embodied
CO2e of UK cement, additions and cementitious material”. This
replaces the previous version “Embodied CO2 of factory-made cements
and combinations” which was published in February 2009.
The embodied figure for CEM 1 in the updated information shows
an 18% reduction in emissions compared to the previous information.
This reduction does not take into consideration the increased scope
that has now been included under the new methodology. The updated
methodology we believe reflects the best available international
The current information maintains the cradle to gate boundaries
so does not currently include any benefit (in terms of CO2
reduction) from the recarbonation of the cement during the
lifecycle of concrete.
Where good quality transport information has been available this
has been included in order to provide the best information
available and to support users in calculating the impact of their
Using the data in carbon calculations
The previous factsheet underpinned the data for cement and
concrete in the ICE databases developed by the University of Bath.
Since that time PAS 2050 has become recognised and revised as a
reference point for greenhouse gas emissions of products and
services in the UK. The recent 2011 revision also recognises the
prominence of the EPD methodology EN 15804 for construction
products, published 2012. The PAS 2050 document has been considered
in ISO 14067 which is the international standard for Green House
Gas emissions of products and services but this is still in the
draft stages of development.
In producing this updated information the principles of all the
relevant codes and standards have been considered and where
technically possible have been included in the current methodology.
A key change is the move to a fundamental assessment of greenhouse
gas emissions (CO2e) rather than only CO2 emissions.
While this change in itself does not represent a significant change
in the overall emissions, it has provided the opportunity to
revisit and challenge the methodology in all the non-regulated
contributions to the overall emissions. Despite the challenging
economic conditions, the cement sector has continued its continuous
programme of emission improvements. The update has also been able
to include the production improvement established over the period
from 2007 to 2010.