Title:
CEMENT COMPOSITION AND CAVITY FILLING MATERIAL
Document Type and Number:
Japanese Patent JP2015134701
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cement composition which is applied easily, has excellent packing property, keeps stably swelling properties for a long period of time even after prepared and is capable of suppressing material separation, and to provide a cavity filling material which can hold stable properties and states of even a cavity of a wet state and can suppress generation of a gap after filled in the cavity.SOLUTION: The powdery cement composition contains 100 mass of cement, 10-50 mass of a clay mineral containing smectite as an effective component, and one or more selected from carbonate, bicarbonate and phosphate of an alkali metal.
Inventors:
NOGUCHI MASAAKI
Application Number:
JP2014235245A
Publication Date:
July 27, 2015
Filing Date:
November 20, 2014
Export Citation:
Assignee:
TAIHEIYO MATERIAL KK
International Classes:
C04B28/02; C04B14/10; C04B22/10; C04B22/16; E02D3/00; E21F15/00
Domestic Patent References:
| JPH03275550A | 1991-12-06 | |||
| JP2003119062A | 2003-04-23 | |||
| JP2014051564A | 2014-03-20 | |||
| JP2008024925A | 2008-02-07 | |||
| JP2002155277A | 2002-05-28 | |||
| JP2007077392A | 2007-03-29 |
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto
Toshio Takano
Toshio Nakajima
Masaki Murata
Hiroto Yamamoto