Di-ammonium hydrogen phosphate for the consolidation of lime-based historic mortars – Preliminary research
| Autor: | Danilo Biondelli, Cristina Tedeschi, Agnieszka Defus, Silvia Vettori, Elena Possenti, Antonio Sansonetti, Marco Realini, Chiara Colombo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Archeology
Molar concentration Materials science Materials Science (miscellaneous) Limewater 02 engineering and technology Conservation engineering.material 01 natural sciences chemistry.chemical_compound Composite material Spectroscopy Lime Water transport Consolidation (soil) 010401 analytical chemistry HAP 021001 nanoscience & nanotechnology Phosphate 0104 chemical sciences Mortar chemistry Chemistry (miscellaneous) Mortar Conservation Di-Ammonium hydrogen phosphate Consolidation HAP engineering Ammonium hydrogen phosphate Di-Ammonium hydrogen phosphate 0210 nano-technology General Economics Econometrics and Finance Consolidation |
| Zdroj: | Journal of cultural heritage 48 (2021): 45–53. doi:10.1016/j.culher.2021.01.005 info:cnr-pdr/source/autori:Defus, Agnieszka; Possenti, Elena; Sansonetti, Antonio; Tedeschi, Cristina; Colombo, Chiara; Biondelli, Danilo; Vettori, Silvia; Realini, Marco/titolo:Di-ammonium hydrogen phosphate for the consolidation of lime-based historic mortars-Preliminary research/doi:10.1016%2Fj.culher.2021.01.005/rivista:Journal of cultural heritage/anno:2021/pagina_da:45/pagina_a:53/intervallo_pagine:45–53/volume:48 |
| DOI: | 10.1016/j.culher.2021.01.005 |
| Popis: | The paper investigates the use of di-ammonium hydrogen phosphate (DAP) as a possible consolidation treatment for lime-based mortars. Different DAP concentrations are proposed, additional post-treatment limewater application is used on some specimens. The results of application were evaluated in terms of mechanical property modification (dynamic elastic modulus, weight loss due to the peeling test), penetration depth, consolidant’s distribution, colour change and water transport properties. Newly-precipitated phosphate-based phases were detected after the treatment and the relation towards treatment modality (i.e. DAP solution molarity and further limewater application) was evaluated. In the case of mechanical improvement, the outcomes indicate that a phosphate-based treatment is highly promising for mortar consolidation. Some non-negligible colour change was detected as a result of DAP application. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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