METHOD AND SYSTEM FOR INSPECTING DEGREE OF DETERIORATION OF EXISTING SOFT MATERIAL AND MEASURING DEVICE

PROBLEM TO BE SOLVED: To provide a method and a device for inspecting the degree of deterioration of an existing soft material, the method and the device allowing a non-destructive inspection of the degree of deterioration of an existing soft material without cutting out the material, and to provide a measuring device.SOLUTION: The present invention relates to a method for inspecting the degree of deterioration of an existing sealing material, the method including the steps of: sequentially measuring a piercing load acting on a measurement needle 30 by a load cell 32 while sticking the needle 30 into an existing sealing material 50 at a substantially constant rate; and inspecting the degree of deterioration of the existing sealing material 50 on the basis of the piercing load, or inspecting the degree of deterioration of the existing sealing material 50 by determining the thickness of a deteriorated layer 50A and a healthy layer 50B on the basis of the piercing load.SELECTED DRAWING: Figure 3 【課題】既設軟質材の劣化度合を、切り抜くことなく非破壊検査し得る既設軟質材の劣化度合検査方法及び劣化度合検査システム並びに測定器を提供する。【解決手段】既設シーリング材５０に対して略一定速度で測定針３０を刺し込みながら、測定針３０に作用する刺し込み荷重をロードセル３２で順次測定し、刺し込み荷重に基づいて、既設シーリング材５０の劣化度合を検査する、または、刺し込み荷重に基づいて、劣化層５０Ａと健全層５０Ｂとの厚さを求めて、既設シーリング材５０の劣化度合を検査する。【選択図】図３