Title:
EXPANSIVE CONCRETE HAVING LOW TEMPERATURE DEPENDENCY
Document Type and Number:
Japanese Patent JP2005047738
Kind Code:
A
Abstract:
To provide expansive concrete having low temperature dependency.
The expansive concrete in which an expensive component is blended has ≤33% temperature-dependent variation of restrained expansion distortion in a condition of steel ratio in the stabilized period after curing of ≤1.8 and 10-70°C. In the expansive concrete, for example, an expansive clinker mineral, in which alite, anhydrous gypsum and free quick lime constitute product phases of the expansive component, where the content of anhydrous gypsum is 0.5-10 wt.%, the content of free quick lime is 65-80 wt.% and 15-60 vol.% of free quick lime is included into the alite crystal, is used as a main component.
Inventors:
SATAKE SHINYA
SAKUMA TAKASHI
TANIMURA MITSURU
MITANI YUJI
SAKUMA TAKASHI
TANIMURA MITSURU
MITANI YUJI
Application Number:
JP2003205029A
Publication Date:
February 24, 2005
Filing Date:
July 31, 2003
Export Citation:
Assignee:
TAIHEIYO MATERIAL KK
TAIHEIYO CEMENT CORP
TAIHEIYO CEMENT CORP
International Classes:
C04B28/02; C04B22/08; C04B22/10; C04B22/14; C04B103/60; (IPC1-7): C04B28/02; C04B22/08; C04B22/10; C04B22/14
Domestic Patent References:
| JP2002308661A | 2002-10-23 | |||
| JP2003192414A | 2003-07-09 | |||
| JP2002326858A | 2002-11-12 | |||
| JP2003063847A | 2003-03-05 |
Attorney, Agent or Firm:
Shigeki Ueda
Hiroshi Chiba
Hiroshi Chiba