| 摘要 |
PROBLEM TO BE SOLVED: To provide a jig for a box shape container and a concrete fillability evaluation method that enable simple and accurate concrete fillability evaluation.SOLUTION: The present invention relates to a jig to be installed in a box shape container used in [A vibration box filling test method of fresh concrete (Proposal)] of the Japan Society of Civil Engineers, and provides the jig for the box shape container provided with a hole for uniformly holing the position and depth of a vibration part of a vibrator inserted into concrete. Further, the present invention relates to a method for evaluating fillability of the concrete on the basis of a gap passage velocity and a change rate of a coarse aggregate amount obtained by using the box shape container having the jig installed therein, and provides a concrete fillability evaluation method that includes a concrete casting step, a vibrator insertion step, a concrete vibrating step, a gap passage velocity calculation step, and a coarse aggregate amount change rate calculation step. |
