Title:
FRESH CONCRETE, AND MANUFACTURING METHOD OF STEEL BAR CONCRETE HARDENED BODY USING THE SAME
Document Type and Number:
Japanese Patent JP2019099435
Kind Code:
A
Abstract:
To provide a fresh concrete capable of being obtained at extremely low cost compared to conventional high fluidity concretes although it is a fresh concrete without requirement of tamping, and a manufacturing method of a steel bar concrete hardened body without requirement of tamping using the same.SOLUTION: There is provided a self filling type fresh concrete containing a cement material, a fine aggregate, a coarse aggregate, water, and a high performance AE water-reducing agent, and having cement amount per unit area of 280 kg/mto 350 kg/m, a water cement ratio of 45% to 55%, slump flow of 400 mm or more, and containing no thickener, and a volume ratio of the fine aggregate to mortar consisting of the cement material, the fine aggregate and water of 55% to 58%.SELECTED DRAWING: None
Inventors:
MATSUMOTO SHUJI
SAKATA NOBORU
SAKAI GORO
YANAI SHUJI
HASHIMOTO MANABU
KOBAYASHI KIYOSHI
MIZUNO KOHEI
KURATA KAZUHIDE
SAKATA NOBORU
SAKAI GORO
YANAI SHUJI
HASHIMOTO MANABU
KOBAYASHI KIYOSHI
MIZUNO KOHEI
KURATA KAZUHIDE
Application Number:
JP2017234390A
Publication Date:
June 24, 2019
Filing Date:
December 06, 2017
Export Citation:
Assignee:
KAJIMA CORP
International Classes:
C04B28/02; B28B23/02; C04B24/26
Domestic Patent References:
JP2015044730A | 2015-03-12 | |||
JPH03237049A | 1991-10-22 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Yuichi Niiyama
Hayashi Ichiyoshi
Yuichi Niiyama