Title:
コンクリート製品およびコンクリート製品の製造方法
Document Type and Number:
Japanese Patent JP6753687
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a concrete product having extremely enhancing durability such as salt resistance or acid resistance and flexure strength and a manufacturing method therefor.SOLUTION: There is provided a concrete product by blending 7 to 15 pts.mass of an ettringite expansive admixture as an admixture with 100 pts.mass of a blast furnace cement B kind and having 5 N/mmor more by a flexure test method by JISA1106-1999 at material age of 14 days. There is provided a manufacturing method of the concrete product having 5 N/mmor more by a flexure test method by JISA1106-1999 at material age of 14 days by blending 7 to 15 pts.mass of the ettringite expansive admixture as an admixture with 100 pts.mass of the blast furnace cement B kind, adding water and mixing and then packing into a form, curing by holding the same at introduction time of 2 hr. or more, temperature rise of 15 to 20°C/hr. and maximum temperature of 30 to 80°C for 2 to 6 hr., releasing the form and curing the same in outdoor by material age of 14 days.SELECTED DRAWING: None
Inventors:
Kazuyoshi Ohno
Kento Yuasa
Igarashi several horses
Kimura Jun
Kento Yuasa
Igarashi several horses
Kimura Jun
Application Number:
JP2016085798A
Publication Date:
September 09, 2020
Filing Date:
April 22, 2016
Export Citation:
Assignee:
Chiba Ceramics Co., Ltd.
Denka Co., Ltd.
Denka Co., Ltd.
International Classes:
C04B28/08; B28B11/24; C04B22/06; C04B22/14; C04B40/02
Domestic Patent References:
| JP2007186372A | ||||
| JP2001181004A | ||||
| JP2129053A | ||||
| JP2010006662A | ||||
| JP2004256317A |
Attorney, Agent or Firm:
Satoru Matsumoto
Satoru Aida
Satoru Aida