CONCRETE FILLING PROPERTY EVALUATION METHOD, CONCRETE SEPARATION TESTING DEVICE, AND VIBRATION FLOW TESTING DEVICE

摘要

PROBLEM TO BE SOLVED: To predict objectively and easily a filling factor (final filling factor) when a sufficient vibration time is given to concrete from indexes showing the hardness, the separation resistivity and deformation easiness of the concrete, and to provide a concrete separation testing device and a vibration flow device capable of determining propriety of the filling property based on some threshold regardless of materials or mixing especially by evaluating synthetically each of the indexes, and suitable for an evaluation test of the filling property.;SOLUTION: A separation resistivity evaluation index for showing difficulty of separation of an aggregate is measured by allowing flowing fresh concrete to collide with a flow obstacle 30, and a deformability evaluation index for showing deformation easiness at the vibration time at a slump flow or flow velocity or the like is measured by applying vibration to the fresh concrete having the same composition, and the deformability evaluation index and the separation resistivity evaluation index are evaluated synergistically, to thereby determine propriety of the filling property.;COPYRIGHT: (C)2006,JPO&NCIPI