Title:
METHOD FOR PRODUCING PRECAST CONCRETE MEMBER
Document Type and Number:
Japanese Patent JP2019055489
Kind Code:
A
Abstract:
To produce a precast concrete member having quality equal to that of the one obtained by performing three days wet curing with water fed from the outside without requiring three days wet curing.SOLUTION: Provided is a method for producing a precast concrete member comprising: a step A where cement such as high early strength portland cement, blast furnace slag fine powder as an additive material, a fine aggregate containing a porous aggregate beforehand included with water as a self-curing agent, a coarse aggregate, water and an additive agent are kneaded, and the same is driven into a flask; a step B where, after the installation of blast furnas slag concrete, moist curing is performed; and a step where, after the moist curing and flask removal, air dried curing is performed without performing three days wet curing with water fed from the outside, thus the blast furnace slag concrete is subjected to wet curing from the inside with the water released from the porous aggregate.SELECTED DRAWING: Figure 1
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Inventors:
SUZUKI MASAHIRO
NAKASE HIROICHI
NAKASE HIROICHI
Application Number:
JP2017179753A
Publication Date:
April 11, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
PS MITSUBISHI CONSTRUCTION CO LTD
International Classes:
B28B11/24; C04B14/02; C04B18/14; C04B28/02; C04B40/02
Domestic Patent References:
| JP2011195354A | 2011-10-06 | |||
| JP2008184353A | 2008-08-14 | |||
| JP2008266130A | 2008-11-06 |
Attorney, Agent or Firm:
Junichi Omori
Mitsuru Takahashi
Teppei Nakamura
Ori Akira
Masayoshi Sekine
Ayako Kaneko
Shintaro Kanayama
Chiba Ayako
Shiraka Tomohisa
Mitsuru Takahashi
Teppei Nakamura
Ori Akira
Masayoshi Sekine
Ayako Kaneko
Shintaro Kanayama
Chiba Ayako
Shiraka Tomohisa