Layered Double Hydroxides (LDHs) as New Consolidants for Cultural Heritage Masonry

(1) Background: In time, stone monuments suffer a process of aging and loss aesthetic mechanical properties. order to restore stop the their properties, various treatments are used, in this context, new class discovered materials with interesting properties layered double hydroxides, or LDHs. (2) Methods: The LDHs, prepared by coprecipitation method, were characterized structure X-ray diffraction, composition FT-IR spectroscopy fluorescence spectroscopy, size diffuse light scattering, porosity N2 adsorption/desorption. Additionally, some microscopy techniques such as optical SEM/EDAX used for surface aspects morphology, finally, all these checked ImageJ software representative roughness parameters treated surfaces brushing incorporation. (3) Results: show different degrees crystallinity textural dispersion material presents good stability time water/ethanol mixtures. Treatment LDH applied led improvements (about 5% increase compressive strength), an increased 30%), improvement resistance freeze–thaw cycles. specimens’ not altered treatments. (4) Conclusions: consolidation efficacity was CaMgAl-LDH > MgAl-LDH CaAl-LDH, better application than