Waste to landfill as a proportion of production output
The indicator for waste minimisation relates to waste disposed
to landfill per tonne of concrete production and includes waste
related to the constituent materials attributed by their proportion
in the concrete. During 2015, the value was 1.1 kg/tonne of
concrete produced, performance similar to 2014.
The equivalent value for concrete + reinforcement is
The 2020 target is a 90% reduction from the 2008 baseline,
equivalent to 500g (0.5kg) of waste per tonne of concrete
produced. Our longer-term aspiration is for zero waste to
A precast factory changed the procurement process, storage,
handling and automatic mixing of epoxy resin used in the production
of concrete rail bearers. This change resulted in the elimination
of 30 tonnes of hazardous waste per annum and a significant
reduction in the use and wastage of epoxy resin and related
Net waste consumption ratio
* materials diverted from the waste stream for use as a fuel
source are not included in the ratio until 2011.
The net waste consumption ratio givs an overall indicator for
the inductry's use of waste and by productsrelative to its own
waste to landfill, specifically
Waste and by-products used in
concrete manufacture + materials diverted from the waste
stream for use as fuels
Waste to landfill generated by
concrete production and its constituent materials.
In 2015, concrete was a net user of waste,
consuming 99 times more recovered and waste materials than the
waste it sent to landfill.
Replacement of fossil fuels
Material diverted from the waste stream for use as a
fuel source, as a percentage of total energy use
The industry requires high temperatures for production,
primarily in cement manufacture, and this is an opportunity to
safely utilise alternative combustible materials as fuel instead of
non-renewable fossil fuels. Where fuels used are recognised as
carbon neutral under EU Emissions Trading Scheme
(EU ETS), this has the additional benefit of reducing the
embodied carbon of cement.
The concrete industry indicator shows the proportion of energy
derived from materials diverted from the waste stream as a
percentage of total energy use. In 2015, 32.5% of total energy use
was from waste-derived fuels. The 2020 target is to increase this
These indicators are part of the Waste section of the
report and 2020 Commitments. An update on
our Waste 2020 Commitments.
For responsibly sourced case studies see This is