Title:
EVALUATION METHOD OF HIGH FLUIDITY CONCRETE FOR REINFORCEMENT CONCRETE STRUCTURE
Document Type and Number:
Japanese Patent JP2023146300
Kind Code:
A
Abstract:
To provide an evaluation method for a high fluidity concrete which is assumed to be used for a reinforcement concrete structure, capable of more objectively evaluating use aptitude for an actual structure, using quantitative data.SOLUTION: A first test step is a test step for filling a concrete sample C in a sample putting chamber 14 of a two-chamber type concrete filling test machine 1, then, passing the concrete sample C through a flow obstacle part 13 and making the concrete sample C flow into a sample inflow chamber 15, then measuring a filling height of the concrete sample C in the sample inflow chamber 15 after flowing stop. A second test step is a test step for measuring an inflow mortar value into a cylindrical penetrometer type test machine 2 for each chamber of the sample putting chamber 14 and the sample inflow chamber 15, for calculating an absolute value of a difference between an inflow mortar value in the sample putting chamber 14 and an inflow mortar value in the sample inflow chamber 15, where quality of a high fluidity concrete is evaluated, on the basis of whether the absolute value calculated in the second test step, is a prescribed value or lower.SELECTED DRAWING: Figure 1
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Inventors:
MATSUMOTO SHUJI
ROPPONGI HINAKO
HASHIMOTO MANABU
WATANABE KENZO
YANAI SHUJI
ARAKAWA HARUKA
MIZUNO KOHEI
ROPPONGI HINAKO
HASHIMOTO MANABU
WATANABE KENZO
YANAI SHUJI
ARAKAWA HARUKA
MIZUNO KOHEI
Application Number:
JP2022053423A
Publication Date:
October 12, 2023
Filing Date:
March 29, 2022
Export Citation:
Assignee:
KAJIMA CORP
International Classes:
G01N11/12; G01N33/38
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Yuichi Niiyama
Kazuyoshi Hayashi
Yuichi Niiyama