Decision method and the concrete deterioration decision reagent null

摘要

PROBLEM TO BE SOLVED: To obtain an indicator fixing method capable of being executed simply, keeping discoloration for a long time and capable of observing clear discoloration and a method for judging the deterioration of concrete capable of simply performed on the execution spot, keeping a judge result for a long time and capable of observing a clear judge result. ;SOLUTION: An indicator fixing method contains a process spraying or applying an indicator soln. containing an indicator and a water-soluble polymer on the surface of a solid and spraying or applying a hydrophilic liquid not dissolving the water-soluble polymer on the surface of the solid. A method for judging the deterioration of concrete contains a process spraying or applying the indicator soln. containing the indicator and the water-soluble polymer on the surface of concrete and spraying or applying the hydrophilic liquid not dissolving the water-soluble polymer on the surface of concrete.;COPYRIGHT: (C)1999,JPO