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News Release from: WRAP | Subject: Life cycle assessment of aggregates
Edited by the Buildingtalk Editorial
Team on 09 January 2007
Life cycle assessment of aggregates
WRAP (Waste and Resources Action Programme) has launched an Open Tender inviting bids to carry out a Life Cycle Assessment of Aggregates.
WRAP (Waste and Resources Action Programme) has launched an Open Tender inviting bids to carry out a Life Cycle Assessment of Aggregates The purpose of the work is to develop a Life Cycle Inventory and Assessment for aggregates produced from both primary and recycled resources
This article was originally published on Buildingtalk on 4 Oct 2005 at 8.00am (UK)
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The study should also make a comparison between processing options for aggregates for unbound applications, aggregates for concrete, and aggregates for asphalt.
The resources to be assessed are:.
* igneous rocks.
* sedimentary rocks.
* sand and gravel deposits (land and marine).
* recycled unbound inert waste.
* recycled concrete.
* recycled asphalt.
The study will cover all aspects of extraction and processing of primary resources through to the point of their dispatch as aggregates.
It should also investigate issues such as the excess production of fines where sales and production are out of balance.
Washing processes that enable the further processing of fines and other aggregate sizes are to be considered for both primary and recycled resources, in addition to conventional screening and crushing.
The report should also assess the relative proximity of sources of primary aggregates and recycled aggregates to the market place and disposal options for inert construction and demolition wastes.
This opportunity has arisen from the requirement for further data on the environmental profiles of various sources of aggregates, and on the comparative environmental impacts of the different disposal and recovery routes.
Tenders are welcomed from single organisations and partnered bids, and full application details are available on the WRAP website.
The closing date for tender submissions is 5pm Monday 29th January 2007.
For further information, contact Keith James at keith.james@wrap.org.uk.
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