CO2 Emissions - Production
Performance indicator
CO2 emissions - Production (Rolling
mix)
The CO2 emissions per tonne of concrete shown above,
are based on the average composition of concrete in 2010. This
average composition changes from year to year (a 'rolling concrete
mix') and reflects changes in the concrete mix used by the market.
Based on the rolling concrete mix, there has been an increase of
seven per cent for 2010, compared to 2009, which still represents a
reduction of 12.3 per cent under the 1990 baseline. The increase
from 2009 is the result of a higher average cement content of the
rolling concrete mix.
CO2 emissions - Production (Standardised
mix)
Using the same calculations as above, but with a standardised
(fixed) concrete mix, the CO2 emissions have not changed
significantly betweenn 2009 and 2010. Compared to the 1990
baseline, the 2010 data shows a 16.3 per cent reduction. The
CO2 emissions - production (standardised mix) indicator
measures improvements in the production of concrete. Based on this
indicator, we are on track to meet our 2012 target.
CO2 Emissions - Transport
Performance indicator
CO2 emissions of the total delivery transport
through the industry supply chain
The local supply network for concrete means that delivery
distances are short and therefore the fuel used during haulage (and
the associated CO2 emissions) is minimised. The average
delivery distance of ready-mixed concrete to the construction site
in 2010 was 10.5km, and 119km for precast concrete products.
The average delivery distance for all concrete is 36km.
Thre has been a rationalisation of production sites within the
concrete supply chain which has led to an increase in the average
distance for raw materials from 43km to 47km in 2010. This accounts
for the increase in the transport indicator.
Further information on the CO2 emissions indicator can be
found in the full report.