Title:
コンクリートのレオロジー定数測定方法およびその装置
Document Type and Number:
Japanese Patent JP6902248
Kind Code:
B2
Abstract:
To provide a rheological constant measurement method capable of quickly measuring a rheological constant of concrete in situ.SOLUTION: A groove-shaped body portion of an inclined flow tester is divided by a first gate plate 5 and a second gate plate 6 into a sample inlet 2, a sample tank portion 3, and an inclined flow portion 4. The sample inlet 2 located on an upstream side of the inclined flow tester is attached to a chute portion of a track agitator. Concrete discharged from the track agitator is allowed to flow to the sample inlet 2 with the first gate plate 5 and the second gate plate 6 closed. The first gate plate 5 is opened to collect a predetermined amount of a sample in the sample tank portion 3. Thereafter, the sample is caused to flow down along the inclined flow portion 4 by opening the second gate plate 6. For the sample flowing down the inclined flow portion 4, a flow front velocity and a height of the sample at any of a plurality of measurement points of the inclined flow portion 4 are obtained. Based on the measured values, an apparent yield value and an apparent plastic viscosity are determined.SELECTED DRAWING: Figure 2
Inventors:
Hideyuki Kajita
Hiroyuki Sasakura
Yoshihiro Masuda
Hiroyuki Sasakura
Yoshihiro Masuda
Application Number:
JP2017250623A
Publication Date:
July 14, 2021
Filing Date:
December 27, 2017
Export Citation:
Assignee:
MAEDA CORPORATION
New Tech Co., Ltd.
New Tech Co., Ltd.
International Classes:
G01N11/00; G01N19/00; G01N33/38
Domestic Patent References:
| JP2017223490A | ||||
| JP2013132760A | ||||
| JP2014122827A | ||||
| JP2016142532A |
Foreign References:
| US4578989 |
Attorney, Agent or Firm:
Kumon enjoyment
Hisako Yasuko
Hisako Yasuko