Title:
高炉水砕スラグ又はその粒度調整物の固結防止剤及び固結防止方法
Document Type and Number:
Japanese Patent JP3559204
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an anti-caking agent capable of preventing blast furnace granulated slag or a size-controlled product thereof from caking over a long period during its storage and causing no drop of the mechanical strength of hardened forms produced using such slag or size-controlled product thereof after stored as an aggregate for concrete. SOLUTION: This anti-caking agent for blast furnace granulated slag or size-controlled products thereof comprises an alkylene oxide adduct of an aliphatic oxycarboxylic acid and/or salt thereof, which is prepared by adding the corresponding alkylene oxide to the aliphatic oxycarboxylic acid and/or salt thereof in an aqueous solution of the aliphatic oxycarboxylic acid and/or salt thereof in the presence of an alkali catalyst; wherein the aliphatic oxycarboxylic acid is a 4-8C one, and the aliphatic oxycarboxylic acid and/or salt thereof is at least one selected from gluconic acid, glucoheptonic acid, tartaric acid and sodium salts thereof.
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Inventors:
Hiroyuki Mitsuto
Mitaka Fukai
Chiaki Yoshizawa
Mitsuo Kinoshita
Tomoo Takahashi
Tatsumaru Sugiyama
Mitaka Fukai
Chiaki Yoshizawa
Mitsuo Kinoshita
Tomoo Takahashi
Tatsumaru Sugiyama
Application Number:
JP23113399A
Publication Date:
August 25, 2004
Filing Date:
August 18, 1999
Export Citation:
Assignee:
Steel Pipe Mining Co., Ltd.
Takemoto Yushi Co., Ltd.
Takemoto Yushi Co., Ltd.
International Classes:
C04B5/00; C04B5/02; C04B20/10; (IPC1-7): C04B5/00; C04B5/02
Domestic Patent References:
| JP54130496A | ||||
| JP5443188A |
Attorney, Agent or Firm:
Hiromasa Iriyama