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Recycling of concrete for sustainable road construction: Why are proven methods not currently used?
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
2018 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This report aims to investigate why proven methods for recycling concrete waste as road construction material are not practiced in Sweden. An additional objective is to investigate how concrete is handled as a waste product and whether it would be environmentally friendly and financially beneficial to clients and contractors. Information has been extracted via interviews conducted with experts from various positions within the civil engineering industry.

Additional information was obtained through literature studies and questionnaires sent and received via email.

Results which were frequently mentioned by engineering professionals included the extra expense of transporting and processing crushed concrete, parties involved in the design and construction processtend to follow traditional methods of using tried and tested virgin materials, the assumption of responsibility for structural failure

due to alternative materials and general lack of knowledge surrounding crushed concrete as a construction material.

Conclusions are that crushed concrete is suitable for construction of subbases in roads and base courses of cycle/pedestrian paths. Traditionally used virgin materials are generally less expensive than crushed concrete. Existing legislation makes the use of recycled construction material difficult. Awareness and education regarding recycled concrete, as a construction material, should be increased.

Place, publisher, year, edition, pages
2018. , p. 55
Keywords [en]
crushed concrete, recycling, roads, specifications, AMA, aggregate
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:uu:diva-355724ISRN: ISRN UTH-INGUTB-EX-B-2018/08-SEOAI: oai:DiVA.org:uu-355724DiVA, id: diva2:1230504
External cooperation
Tyréns
Educational program
Bachelor Programme in Construction Engineering
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Examiners
Available from: 2018-07-04 Created: 2018-07-03 Last updated: 2018-07-04Bibliographically approved

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Byggteknik
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CiteExportLink to record
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