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Patent Searching and Data


Title:
FILLER
Document Type and Number:
Japanese Patent JP2010018474
Kind Code:
A
Abstract:

To provide a filler having high fluidity even when fly ash is added.

The filler is obtained by blending, by mass based on cement of 1, bentonite of 0.096-0.24 as a water holding agent, metal powder of 0.00025-0.001 as a foaming agent, lignin sulfonate of 0.002-0.01 as a fluidizing agent and sodium silicate of 0.005-0.015 as a hardening accelerating agent. The filler is filled between the tubes of a double tube structure as filler. In such a case, the water holding agent, the fluidizing agent, a hardening accelerating agent and the foaming agent are made powdery and are pre-mixed to make a fluidizing material a1, and a mixture a2 of the fluidizing material a1 with water (w) is mixed with a mixture a3 of cement (s), in which the fly ash is added, with water and stirred to make the filler. The incorporation of the hardening agent accelerates the hardening of the filler and then, even when the fly ash is added in the filler, the delay of the hardening hardly occurs and the increase of bleeding and the reduction of the volume hardly occur.


Inventors:
YAMADA YOSHINOBU
SAITO MASAHIKO
AKAGI YOJI
DEBARI SEIJI
Application Number:
JP2008179711A
Publication Date:
January 28, 2010
Filing Date:
July 10, 2008
Export Citation:
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Assignee:
KURIMOTO LTD
YAKUZAI KAIHATSU CT KK
International Classes:
C04B28/02; C04B14/10; C04B18/08; C04B18/14; C04B22/04; C04B22/08; C04B24/18; C09K3/10; F16L1/00; C04B111/70
Attorney, Agent or Firm:
Bunji Kamata
Takayoshi Tagawa
Higashio Masahiro