Diethyl oxalate-based microgrouts in calcium carbonate systems : formulation, field testing and mineralogical characterization
| Autor: | Porter, Jennifer, Pasian, Chiara, Secco, Michele, Salameh, Michel, Debono, Nathalie, Historic Mortars Conference |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
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| Popis: | A microgrout based on diethyl oxalate binder and limestone aggregate was developed for the conservation of painted lime plasters detached from a limestone substrate, after formulations based on nanolime dispersions failed to perform as expected. Microgrouts bound with nanolime, nanosilica, ammonium oxalate and diethyl oxalate were developed and tested in the field, and diethyl oxalate formulations demonstrated the best working properties and performance characteristics. The diethyl oxalate microgrouts were further subjected to laboratory testing to determine the rate and products of binder and aggregate reaction. This article describes the results of the field development and testing of these microgrouts, and the characterization of the mineralogical phases formed in the set diethyl oxalate microgrout via X-ray powder diffraction (XRPD) coupled with quantitative phase analysis (QPA). peer-reviewed |
| Databáze: | OpenAIRE |
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