UA87481C2 UAA200607916A UAA200607916A UA87481C2 UA 87481 C2 UA87481 C2 UA 87481C2 UA A200607916 A UAA200607916 A UA A200607916A UA A200607916 A UAA200607916 A UA A200607916A UA 87481 C2 UA87481 C2 UA 87481C2 Authority UA Ukraine Prior art keywords concrete sodium fresh hydrophobing agent lignopan Prior art …