フレッシュコンクリート、及び、それを用いた鉄筋コンクリート硬化体の製造方法

Japanese Patent JP6924684

B2

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

JP7361643	A method for measuring the content of calcium propionate in a hardened cementitious material, and a method for suppressing an alkali aggregate reaction in a hardened cementitious material.
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JP2001129507	ADDITIVE COMPOSITION FOR UNDERGROUND WATER BARRIER WALL AND CONSTRUCTION METHOD FOR CONTINUOUSLY INTEGRATED UNDERGROUND WATER BARRIER WALL SOLID BODY

Shuji Matsumoto
Noboru Sakata
Goro Sakai
Shuji Yanai
Manabu Hashimoto
Sei Kobayashi
Kouhei Mizuno
Kurata Kazuhide

JP2017234390A

August 25, 2021

December 06, 2017

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Kashima Construction Co., Ltd.

C04B28/02; B28B23/02; C04B24/26

JP2015044730A
JP3237049A

Masayuki Masabayashi
Hayashi Ichiyoshi
Yuichi Niiyama

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