| 摘要 |
PURPOSE:To obtain a method for measuring the distribution of concrete pares which can provide an accurate distribution of pores through easy measurement of fine pores and make a safe and low-cost measurement work and a method for judging the deterioration of a concrete member which can be executed low-costly and rapidly. CONSTITUTION:A concrete member is cooled down, and AE (acoustic emission) generated by freezing moisture of pores present in the concrete is measured, so that a distribution of concrete pores is estimated from the correlation between its count and cooling temperature. A concrete member of predetermined blending is cooled down, and AE is measured to determine the correlation between its count and cooling temperature, where this correlation is compared with a predetermined reference correlation with the result that a deterioration situation of the concrete member is judged from the difference. |
