COATING MATERIAL COMPOSITION FOR CONCRETE HAVING SURFACE-WATER REPELLENCY, FRAME MOLD USING THE SAME COATING MATERIAL COMPOSITION AND MOLDING OF CONCRETE MOLDING USING THE SAME FRAME MOLD

• Main Authors: HATTORI TOSHIO, FUNAKOSHI HIDETADA, UMEZAKI TETSUHIRO
• Format: Patent
• Language: English
• Published: 10.02.1998
• Edition: 6
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING CEMENT, CLAY, OR STONE

PROBLEM TO BE SOLVED: To obtain the subject composition further improved in strengthening concrete surface, suppressing occurrence of efflorescence due to exposure and enabling remarkable shortening of a term of works by previously forming a coating film containing a water repellent having a specific composition on the surface of a frame mold. SOLUTION: This coating material composition comprises at least (A) a binder, (B) a water repellent and (C) a liquid medium and dried coating film of the component A has a property which is stable under acidic and neutral atmospheres and readily dissolvable under alkaline atmosphere. Furthermore, 20-70 pts.wt. vinyl acetate-based resin is preferably used as the component A and 5-30 pts.wt. silicone-based water repellent is preferably used as the component B and 70-0 pts.wt. water, a water-soluble organic solvent such as butyl Cellosolve (R) or mixture thereof is preferably used as the component C.