Method for renovation of defective grouting of e.g. natural stone, involves removing defective part of grouting by pressurizing joint with pressure jet, and filling joints with joints ejected material

摘要

The method involves determining pressure load limit of an intact part (4) of a grouting (1), and removing a defective part (5) of the grouting by pressurizing a joint with pressure jet (9) e.g. water pressure jet, with pressure, which is below the pressure load limit. Joints are filled with joints ejected material e.g. quartz powder. A two-component adhesive agent is applied e.g. brushed or sprayed, on the intact part of the grouting and/or joint edges before filling the joints with the joints ejected material. The adhesive agent contains bisphenol and/or aliphatic glycidyl ethers, isophorone and/or butylphenol e.g. 4-tert-butylphenol, bisphenol and A-epichlorohydrin, 2-piperazin-1-ylethylamine, benzyl alcohol and polyoxpropylenediamine. An independent claim is also included for a device for renovation of defective grouting of natural stone, brick or concrete block paving.