Nanoparticles can save historic buildings - Science Daily

Buildings made of porous rock can weather over the years. Now scientists have studied in detail how silicate nanoparticles can help save them. Many historical buildings were built of sandstone. It is easy to work with, but does not withstand weathering well. …

Many historical buildings were built of limestone, such as Vienna's St. Stephen's Cathedral. Limestone is easy to work with, but does not withstand weathering well. It consists mainly of calcite mine… [+3625 chars]

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