Materials Efficiency
Performance indicator
Material diverted from the
waste-stream for use as a fuel source, as a percentage of total
energy use
In 2010, almost a quarter of the energy used in the concrete
industry came from material diverted from the
waste stream. This also reduces the energy demands which would
have been required for conventional methods of disposal for these
wastes. The 2012 target was achieved in 2009, and 2010 sees a
further improvement. As part of the work to extend the current
targets, constraints such as the future availability of suitable
fuel alternatives, are being investigated.
The amount of additional cementitious materials as a
proportion of total cementitious materials
In 2010 the concrete industry had used almost 28 per cent of
additional cementitious materials. In 2010 this reduction is
primarily due to the reduction in the amount of GGBS used in the
ready-mixed sector.
The use of recycled/secondary aggregates as a proportion
of total aggregates used
In 2010, the use of recycled and secondary aggregates accounted
for 5.8 per cent of the aggregate used in concrete. The manufacture
of precast concrete provides greater opportunities for the use of
recycled aggregates and in this sector the figure is over 20 per
cent.
Further information on the materials efficiency
indicator can be found in the full report.