| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method which is nondestructive, whose measurement time is short, and which safely measures the volume water content of a cement hardened body. <P>SOLUTION: In the method for measuring the volume water content of the cement hardened body, light having a frequency of 0.05 to 0.3 THz is irradiated to the cement hardened body, and the volume water content of the cement hardened body is calculated on the basis of transmissivity of light which penetrates through the cement hardened body. <P>COPYRIGHT: (C)2012,JPO&INPIT |
