关于苏格兰再生骨料数量的评估-----外文翻译.doc

Estimates of the quantities of recycled aggregates inScotland 　　M.G. Wintera,*, C. Hendersonb 　　aTRL Limited, Redwood House, 66 Spylaw Road, Edinburgh EH10 5BR, UK 　　b Formerly ERM Limited, Norloch House, 36 King’s Stables Road, Edinburgh EH1 2EU, UK 　　 　　 　　Abstract 　　A survey methodology for the collection of time series data relating to aggregate waste arisings, recycling and landfill in Scotland is described, and the quantities estimated from a pilot survey for 1999 are reported. Data are reported for construction and demolition waste, industrial waste and by-products and bituminous planings and breakout; additional categories are reported within these as appropriate. Of an estimated 10,200 kt of arisings, some 5200 kt were landfilled and 5500 kt recycled (the additional 500 kt are accounted for by the consumption of existing stocks of industrial wastes and by-products). Data for recycled quantities are reported in terms of the utility of the application to which the aggregates are put. Targets for the recycling of aggregates in the future are also given. 　　Crown Copyright D 2003 Published by Elsevier B.V. All rights reserved. 　　Keywords: Recycling; Aggregates; Environment 　　 　　1. Introduction 　　The Government is committed to sustainable development. The Scottish Executive (1994) signalled the role and contribution of recycled aggregates in reducing the demand for the production of primary aggregates. By increasing the use of recycled aggregates, the need for new quarries should be reduced,with consequential benefits in terms of retaining the countryside in an unspoiled condition. New quarryproposals often generate strong, local opposition, which could be avoided. 　　Additionally, construction and demolition wastes account for some 50% of controlled waste in Scotland and, consequently, take significant landfill space. Onsite techniques to reuse such wastes can minimise the import of materials. An increase in the recycling and reuse of such wastes could, in due c