Português

Analysis of old mortars - characterization and diagnosis methods

António Santos Silva

The chemical, mineralogical and microstructural characterization of old renders is essential to address conservation and restoration interventions. These studies may also provide important information on the buildings history, particularly on the timing and context of its construction, repairs and conservation status. In addition, repair and replacement mortars must be compatible in composition with the preexisting ones.

This presentation shows examples of case studies regarding the application of the methodology employed in LNEC in old mortars characterization, which involves a diverse set of physico-chemical analysis, including X-ray diffraction, thermogravimetry, differential thermal analysis, optical microscopy (stereo zoom microscope, polarized light microscope) and scanning electron microscopy with X-ray microanalysis.

 

 

X-ray fluorescence
Luísa Carvalho

Synchrotron radiation
Martin Radkte

Raman microscopy
Vânia Muralha

Analysis of mortars
António Santos Silva

Synthetic polymers
Ruth Chercoles

Identification of pigments
António João Cruz

Is it a fake?
Maria Filomena Guerra