Russian engineers, working in the field of nanotechnologies, suggest several techniques for restoration and construction works.
      
      Among other developments, engineers created a liquid, which forms coating, protecting marble and limestone rocks from negative impact of moisture and other factors. This liquid has already been tested on marble columns of Isaakievsky Cathedral in St. Petersburg and proved its efficiency.
      
      Another coating can protect building faces from aggressive environment. The coating boasts extreme chemical and water resistance and can protect concrete and metal items.
      
      Source: ITAR-TASS
Author: Anna Kizilova