To provide a method for forcibly sending/spraying a polymer-mixed wet material by which the polymer-mixed wet material can be sent forcibly for a long distance by using the existing facilities as they are and the polymer-mixed wet material is sprayed toward a concrete structure to solidify them integrally so that the solidified material can keep such porosity of around 4 to 6% with which freezing and thawing resistance can be expected.

The polymer-mixed wet material A is given such fluidity that the polymer-mixed wet material can be sent forcibly for the long distance by setting the porosity of the polymer-mixed wet material A to be around 8 to 20%. The polymer-mixed wet material A is sprayed from a nozzle 1 in a misted state by using high-pressure compressed air of around 7 to 10 kg/cm2 to remove unnecessary air bubbles therein and keep such porosity of around 4 to 6% with which the freezing and thawing resistance can be expected.