Approaches to investigate the crack formation of mineral landfill liner systems

Beck-Broichsitter, Steffen and Fleige, Heiner and Horn, Rainer (2017) Approaches to investigate the crack formation of mineral landfill liner systems. In: Jahrestagung der DBG 2017: Horizonte des Bodens, 02.-07.09.2017, Göttingen.

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Abstract

The municipal landfill in Rastorf (Schleswig-Holstein) is covered with a temporary till based capping system. Investigations of structural changes (water conductivity, pore function, shrinkage behaviour) were carried out with undisturbed soil cores and two- and three-dimensional measurement techniques. The usage of different techniques to evaluate the soil volume changes resulted in variations of the available water capacity (ver>ver+hor>3D) and the unsaturated hydraulic conductivity. In summary, a critical matric potential between -500 and -1000 hPa in conjunction with a low shrinkage tendency (Vs < 5 %) could be seen as main argument for the utilization of till as sealing substrate.

Item Type:	Conference or Workshop Item (Contribution to "Reports of the DBG")
Uncontrolled Keywords:	landfill capping system, shrinkage behaviour, critical matric potential
Divisions:	Kommissionen > Kommission VI: Bodenschutz und Bodentechnologie
Depositing User:	Steffen Beck-Broichsitter
Date Deposited:	20 Oct 2017 12:24
Last Modified:	20 Oct 2017 12:24
URI:	https://eprints.dbges.de/id/eprint/1220

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