Color match restoration construction method of the concrete surface and by the pattern attaching roller the concrete spot pattern reappearance manner

摘要

PROBLEM TO BE SOLVED: To protect concrete from oxide and chloride harmful to the durability of the concrete to prevent discoloration or uneven colors while keeping the maintenance in durability. ;SOLUTION: After the repair of surfaces of defective places in concrete 1 is made, 50-150 pts.wt. of silicon dioxide having grain size of 35-14μm and apparent specific gravity of 0.15-0.23, 10-80 pts.wt. of silicon dioxide having grain size 14μm, and apparent specific gravity of 0.03-0.15, 0-300 pts.wt. of lithium silicate aqueous solution (solid content 12.5%), 50-300 pts.wt. of acrylic resin emulsion (solid content 45%), and a small amount of coloring pigment are added, and color matching in the defective parts with a translucent or a transparent coating material 3 colored in the existing color of the concrete and adjustment of water absorption rate are made. Inorganic coating 4 is used for undercoat, patterns are made with inorganic coating 5, and permeable water absorption waterproofing agent 6 and durable protective agent 7 are coated to restore defective sections.;COPYRIGHT: (C)1997,JPO