STON MATERIAL TREATING METHOD

PROBLEM TO BE SOLVED: To solve the problems such that a stone material is treated with permeative water absorption preventing agent, for wind drying left in a room for not a few days, because almost stone material imported was exposed to rain or dew on the way of transportation, this needs large space and long delivery time, otherwise drying by electric heater or infrared ray heater is sometimes executed, but in this case uniform heating is hardly expected and also a large amount of energy consumption is needed. SOLUTION: At first, the stone is dried under the atmospheric pressure of