| 摘要 |
PROBLEM TO BE SOLVED: To provide a slump measuring instrument for easily evaluating a shift of a center position of a concrete when a slump cone is extracted in a slump test.SOLUTION: The slump measuring instrument includes: four support posts provided to stand on a metal flat plate on which the slump test is implemented; and leveling lines installed to be suspended between the support posts, and intersect with the center position of the fresh concrete before the slump cone is extracted. In a slump measuring method, after the slump cone is extracted on the metal flat plate, at least four support posts are provided to stand around the fresh concrete. An intersection of the leveling lines is installed at the center position of the fresh concrete before the slump cone is extracted by connecting the support posts by the leveling lines. After the center position of the fresh concrete after the slump cone is extracted is evaluated, a slump is measured. |
