| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface treatment method for a cement-based composition which can increase a frost damage suppression effect. SOLUTION: The surface of a cement-based composition is coated with an aqueous solution of the metal salt of hydrosilicofluoric acid. After drying, the surface of the cement-based composition is coated with a water absorption inhibition material having permeability. COPYRIGHT: (C)2010,JPO&INPIT |
