Title:
CONCRETE COMPOSITION FOR INSTANT STRIPPING TYPE CONCRETE PRODUCTION PROCESS
Document Type and Number:
Japanese Patent JP2002053361
Kind Code:
A
Abstract:
To obtain a concrete composition which is appropriately used for an instant stripping type concrete production process and capable of shortening the compaction time of concrete, smoothing the surface of the resulting concrete product, and further, easily corresponding to any change in quality of aggregate used, without greatly changing a conventional instant stripping type concrete production process.
This concrete composition contains a coarse-grained fraction of fly ash, which fraction is obtained by removing fine grains having ≤20 μm grain size from the fly ash and has a ≤10 wt.% content of such fine grains having ≤20 μm grain size.
Inventors:
UEHARA NOBUO
NAGAOKA SEIICHI
FUKAMI TOKUJI
ISHII MITSUHIRO
SAWAI JUICHI
MURAI HIRONOBU
NAGAOKA SEIICHI
FUKAMI TOKUJI
ISHII MITSUHIRO
SAWAI JUICHI
MURAI HIRONOBU
Application Number:
JP2000242716A
Publication Date:
February 19, 2002
Filing Date:
August 10, 2000
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD
SHIKOKU ELEC POWER
YONDEN SANGYO CO LTD
SHIKOKU ELEC POWER
YONDEN SANGYO CO LTD
International Classes:
C04B28/02; B28B3/02; C04B18/08; (IPC1-7): C04B28/02; B28B3/02; C04B18/08
Attorney, Agent or Firm:
Eiji Saegusa (8 others)
Eiji Saegusa (2 others)
Eiji Saegusa (2 others)
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