Being flowability evaluation ON test method of the concrete and

摘要

PROBLEM TO BE SOLVED: To provide an evaluation method capable of confirming workability before concrete work, even in a ready mixed concrete factory and a construction work site.;SOLUTION: This flowability evaluation test method for concrete is a flowability evaluation test method for the concrete using as an index value a ratio S_b/S_i of a flow area S_b after fixed vibration energy is imparted to a flow area S_i of a concrete sample on a base plate after filling the concrete sample into a slump cone installed invertedly on the base plate and after the slump cone is extracted out. Also, the flowability evaluation test method for the concrete uses a flowing time until reaching a fixed distance after fixed vibration energy is imparted to the L-type flow testing device after filling the concrete sample into a sample feed part of an L-type flow testing device arranged vertically with a reinforcement in an opening part and after a partitioning plate is extracted out, as an index value for concrete flowability evaluation.;COPYRIGHT: (C)2008,JPO&INPIT