Academic thesis
| Kerstin Frischke: | The possibility to improvement the application of mineral-containing mortar to hydrophobic surface by a modified lime slurries. | Back |
| Language: | Original - Translation | |
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| Abstract: | Abstract A problem with the application of mineral-containing mortar to hydrophobic surface of historical objekt was identified. As a result in the following work test were made to use modified lime slurries as a bonding agent. In connection with the Hubertus Capel, which has a hydrophobic surface on its outside relif, lime slurries were modified with various non-ionic surfactants. The lime slurries and mortar were tested on hydrophobic and hydrophilic slabs of sandstone (Schilfsandstein). A measurement of the determination of the bond shear strength took place befor and after a freeze-thaw-cycling-test. The results of the mesaurement showed that there was a higher bond shear strength on the hydrophobic surfaces, as well as an increase after the freeze-thaw-cycling-test. Furthermore the surfactants showed an impact on the carbonation process of lime. This was mad visible by tinting with phenolohthalein. |
| Keywords: | hydrophobic surface, ime slurries, non-ionic surfactants, Hubertus Capel |
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