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Investigation Methods of MSWI Bottom Ash Properties for Use in Embankments
| 2019:592 | Karina Tommik
Properties of MSWI bottom ash have been investigated based on previous research. There is a large variation properties based on the origin of the bottom ash. Therefore, if the bottom ash will be used for construction of PTES embankment engineering properties of the specific bottom ash used have to be determined to ensure the stability of the embankment.
MSWI bottom ash has also high leaching potential. Therefore weathering will be necessary to reduce the mobility of the contaminants. Additional pre-treatment methods may also be needed. It may also be necessary to install additional liners on the downstream face to limit MSWI bottom ash exposure to precipitation.
In addition to determining bottom ash properties it is equally important to determine the properties of the underlying material. As foundation of the embankment experiences a change in initial stress state under additional load stability problems may arise during construction as well as service time.