コンクリート及びその製造方法 - KABUSHIKI KAISHA KOBE SEIKO SHO

Title:

コンクリート及びその製造方法

Document Type and Number:

Japanese Patent JP5828813

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To attain both effective utilization of industrial and trade wastes and suppression of deterioration of durability of the same.SOLUTION: In the example Grain 0.6, steel making slag having an immersion expansion ratio not less than 1% and not larger than 20% is used as a fine aggregate passing a sieve of 0.6 mm in sieving according to JIS A 1102 in one example of concrete. Popout does not occur in specimen (Plain Concrete) and Grain n (n=0.6, 0.3) in which the steel making slag is not used and only natural aggregate is used as the fine aggregate, popout occurs in grain n (n=5.0, 2.5, 1.2). The adding quantity of AE water reducing agent is substantially the same in the grain n (n=0.6, 0.3) and the Plain Concrete.

Inventors:

Takeshi Yamada
Hiroaki Tsuruta

Application Number:

JP2012182692A

Publication Date:

December 09, 2015

Filing Date:

August 21, 2012

Export Citation:

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