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Patent Searching and Data


Title:
CONCRETE COMPOSITION
Document Type and Number:
Japanese Patent JP2015134697
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a concrete composition having small autogenous shrinkage during curing while having compressive strength of 120 N/mmor more.SOLUTION: There is provided a concrete composition containing a binder containing at least cement and silica fume, water of 145 to 155 kg/madded so that the weight ratio to the binder is 10 to 20%, a coarse aggregate of 270 to 330 L/mand an artificial lightweight fine aggregate having an absolute volume of 88 to 168 L/m. The absolute volume of the coarse aggregate is 290 to 310 L/mand it is better to replace 130 to 150 L/mof the coarse aggregate with the artificial lightweight fine aggregate when the absolute volume of the coarse aggregate is 270 to 290 L/m.

Inventors:
KUROIWA SHUSUKE
NAMIKI SATORU
MATSUHASHI SHUNICHI
Application Number:
JP2014007212A
Publication Date:
July 27, 2015
Filing Date:
January 17, 2014
Export Citation:
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Assignee:
TAISEI CORP
International Classes:
C04B28/02; C04B14/02; C04B18/14; C04B22/14
Domestic Patent References:
JP2008266130A2008-11-06
JPH1192200A1999-04-06
JP2012111642A2012-06-14
JP2001261414A2001-09-26
JP2008184353A2008-08-14
Attorney, Agent or Firm:
Isono Dozo
Etsuo Tada
Nosho Machida