AGGREGATE RECYCLING AND ALTERNATIVE MATERIALS IN HIGHWAY CONSTRUCTION
This paper discusses ways of reducing the use of primary aggregates for road construction in the UK. It reviews the existing situation, examines the available options, and makes recommendations where possible. It does not include new research findings, but draws on existing information. Some 1993 statistics on aggregates use in the UK are given. Seven advantages and eight disadvantages of using secondary materials in place of primary aggregates (crushed rock, sand, or gravel) are listed, together with 15 ways to encourage the use of secondary materials. The use of recycled bituminous mixes is described in some detail. They can perform as well as primary material, but are often more expensive. 14 other possible recycled alternative materials for road construction are discussed. Their perceived quality variability makes them difficult to use in road construction, but most of them can be used as bulk or general fill. Seven general techniques for reducing aggregate demand are listed, and three specific techniques are described. Though the civil engineering industry will come under rising pressure to use secondary aggregates and recycle existing material, only a fraction of the total aggregates extracted can be saved.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0902933132
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Corporate Authors:
INSTITUTION OF HIGHWAYS & TRANSPORTATION
6 ENDSLEIGH STREET
LONDON, United Kingdom WC1H 0DZ - Publication Date: 1995
Language
- English
Media Info
- Features: References;
- Pagination: 32 p.
Subject/Index Terms
- TRT Terms: Aggregates; Bituminous mixtures; Gravel; Policy; Recycling; Road construction; Rocks; Sand; Statistics
- Geographic Terms: United Kingdom
- ITRD Terms: 4577: Aggregate; 4967: Bituminous mixture; 4575: Gravel; 173: Policy; 4573: Recycling (mater); 3665: Road construction; 4154: Rock; 4105: Sand; 6555: Statistics; 8119: United Kingdom
- Subject Areas: Data and Information Technology; Geotechnology; Policy;
Filing Info
- Accession Number: 00719915
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 0-902-933-13-2
- Files: ITRD
- Created Date: Apr 26 1996 12:00AM