this work aims to extract the mineralogical constituents of the lahroud hyperion scene situated in the nw of iran. like the other push-broom sensors, hyperion images suffer from spectral distortions, namely the smile effect. the corresponding spectral curvature is defined as an across-track wavelength shift from the nominal central wavelength, and alters the pixel spectra. the common “column me...

Fire is a major destructive agent for dimension stone. Practically all historic buildings have suffered one or more fires over the course of their lifespan. There are numerous studies on effect fire Generally speaking, these effects can be divided into aesthetic and structural. Aesthetic involve color shift to reddish hues, due oxidation processes triggered by temperature increase. Moreover, st...

This study explored the reactive processes of atmospheric carbonation and consequences with respect to cementitious materials. Two model pastes were used: hydrated C3S (including C-S-H portlandite) a paste prepared by hydrating blend nanosilica only). The two carbonated under accelerated conditions in laboratory. resulting mineralogical assemblage was examined using X-ray diffraction, thermogra...

This article reports fibre-optic oxygen measurements on a reactive mine waste heap located in the polymetallic sulphide mine district of Freiberg in south-eastern Germany. The heaped material consists of sulphide-bearing tailings from a processing plant of a lead-zinc mine. Mine waste material was deposited in the water phase after separation of mining ores in a flotation process. The tailing i...