| 摘要 |
PROBLEM TO BE SOLVED: To provide a revibration compacting management method for concrete, by which the time of executing revibration compacting can be managed more easily by using an instrument widely used such as one used in a slump test.SOLUTION: A method for managing the time of executing revibration compacting is provided, in which a sample test is performed for concrete of a predetermined composition, and a range of suitable rammer penetration depths suitable for performing revibration compacting is calculated in advance, from a correlation between: a change in compression strength generated by performing revibration compacting after placing concrete while vibration compacting; and a rammer penetration depth acquired by a rammer penetration test for measuring a penetration depth of a metallic rammer 11 into a concrete placing surface 10 when dropping the metallic rammer 11 to the concrete placing surface 10. Further, when performing revibration compacting at the concrete placing site, an on-site rammer penetration test is performed, and it is managed that the revibration compacting is performed at the time when the rammer penetration depth acquired in the on-site rammer penetration test becomes the suitable rammer penetration depth. |
