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Use of wood ash for road stabilisation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
Swedish Geotechnical Institute.
2009 (English)In: Eleventh International Symposium on Environmental Issues and Waste Management in Energy and Mineral Production: SWEMP 2009, 2009Conference paper (Refereed)
Abstract [en]

The cementitious properties of many wood ashes makes them a potential stabilising agent for roads that can substitute cement. A test is presently performed using a 30% ash addition to natural soils for reinforcing a forestry road near Timrå, central Sweden. The bearing capacity of forestry roads in Sweden has become increasingly problematic in recent years, due to warmer winters, and in order to get timber out from the forests, road stabilisation is needed, usually adding cement to the road body. Wood ash has similar properties, and may substitute cement. An added advantage of using wood ash is the saving of landfill space. In the ongoing study, laboratory tests on leaching and mechanical stability, frost-sensitivity et c has been performed and a test road was built in June 2009, and will be monitored with regard to environmental impact and mechanical properties. The results so far indicate a strong stabilizing effect of ash additions to the road shoulder material.

Place, publisher, year, edition, pages
Research subject
Waste Science and Technology
URN: urn:nbn:se:ltu:diva-30324Local ID: 416c2fe0-e333-11de-bae5-000ea68e967bOAI: diva2:1003551
International Symposium on Environmental Issues and Waste Management in Energy and Mineral Production : 16/11/2009 - 19/11/2009
Godkänd; 2009; Bibliografisk uppgift: CD-ROM; 20091207 (ysko)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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