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Further information - Materials
Materials case studies
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, around 420 million tonnes of materials are used by the UK construction industry each year, and approximately
120 tonnes becomes waste
report that at least
10% of the value of materials used in the construction
must derive from recycled or re-used content
in the materials selected. Commomly, a target of 10-15% recycled content is being set for new buildings although actual performance is frequently higher.
total consumption of all materials in the UK amounts to 678 million tonnes per year, this equates to 11.3 tonnes per person.
Of this figure 420 million tonnes are used in construction every year, or 7 tonnes per person, according to
Construction materials account for 20% of the UK’s ecological footprint
; 19% of the UK’s total greenhouse gas emissions, and 30% of all UK freight transport.
The production and transportation of construction materials are estimated to use 6% of UK energy.
Cement manufacture accounts for around 2% of the UK’s carbon dioxide emissions, according to
The largest component of construction minerals are aggregates, principally crushed rock (limestone, igneous rock and sandstone) and sand and gravel. Other minerals used in construction are clay, chalk and limestone for cement making, brick clay, gypsum, slate and building stone.
In the UK,
aggregates make up over 50% of construction materials.
In 2013, some 195 million tonnes of minerals were extracted in the UK, of this 157 million tonnes (81%) was construction materials.
Having been introduced in 2002 at £1.60 per tonne, the aggregate levy has since increased for 2010-11 to £2 per tonne.
estimated 532,000 tonnes of construction and demolition waste
was generated in Hertfordshire in 2003/04. (Waste Core Strategy Submission, January 2008).
UK construction industry is responsible for 32% of landfill waste
. A further 29% of waste to landfill is generated by mining and quarrying, according to
Recycled and secondary aggregates supply over 25% of the UK’s requirement, reported by
The Olympic Delivery Authority achieved a figure of 98% of construction waste diverted from landfill and reused or recycled the material instead during the constrcution of the Olympic site; reported by
states that since April 2008, it has been a legal requirement that
a construction project in England worth more than £300,000 must have a Site Waste Management Plan
Strategy for Sustainable Construction
, June 2008, set a target of a
50% reduction of construction, demolition and excavation waste by 2012
, compared to 2008.
promoted the above campaign which ended in 2012. It has commitment to halve waste to landfill from over 800 signatories.