Durability Behavior of Mortars Containing Perlite Tailings: Alkali–Silicate Reaction Viewpoint

Tailing incorporation into mortars has been the subject of much research in recent years. Despite this, most these studies did not investigate harmful effects resulting from exposure such to an environment containing aggressive agents. This work investigated perlite tailing addition cement CP V-ARI MAX and hydrated lime. The raw materials were subjected chemical characterization (X-ray fluorescence (XRF)) mineralogical diffraction (XRD)), while samples immersed 1 N NaOH solution characterized by XRD, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), compression strength (CS). results showed incorporating tailings mortar investigated. Such a degradation was proven linear expansion compressive experiments accomplished after test resistance alkali–silicate reaction.