Title:
低収縮ＡＥコンクリートの調製方法及び低収縮ＡＥコンクリート
Document Type and Number:
Japanese Patent JP5610626
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of preparing ultra low-shrinkage AE concrete and the ultra low-shrinkage AE concrete capable of lowering a dry shrinkage factor to 400 μ or less and, at the same time, giving a cured product excellent in freeze-thaw resistance.SOLUTION: In preparation of the ultra low-shrinkage AE concrete using at least portland cement, fine aggregate, coarse aggregate, a drying shrinkage reducing agent, a cement dispersing agent, an air content controlling agent and water, specific blast-furnace slag fine powder is used at a specific ratio as a part of the portland cement; specific blast-furnace slag fine aggregate is used at a specific ratio as a part of the fine aggregate; the drying shrinkage reducing agent is used at a specific ratio; and a unit amount ratio is adjusted to fall in a specific range.
Inventors:
井上 和政
三井 健郎
見澤 大介
木之下 光男
齊藤 和秀
小林 竜平
三井 健郎
見澤 大介
木之下 光男
齊藤 和秀
小林 竜平
Application Number:
JP2010268620A
Publication Date:
October 22, 2014
Filing Date:
December 01, 2010
Export Citation:
Assignee:
株式会社竹中工務店
竹本油脂株式会社
竹本油脂株式会社
International Classes:
C04B28/08; C04B18/14; C04B24/02; C04B24/26
Attorney, Agent or Firm:
Hiromasa Iriyama