Title:
高耐久性グラウト組成物
Document Type and Number:
Japanese Patent JP7350425
Kind Code:
B2
Abstract:
To provide a highly durable grout composition that is small in dry shrinkage and difficult to cause crack, is excellent in adhesiveness, strength characteristics, neutralization resistance, and salt blocking property, and is excellent as a grout material for cross section repair.SOLUTION: The problem can be solved when a grout composition contains an aggregate having specific particle sizes (particle size 1.2 to 3.0 mm, particle size 0.6 to 1.2 mm and particle size 0.6 mm or smaller) at a specific ratio, furthermore, contains cement, a water-reducing agent, a thickener and aggregate, in which a mass ratio of the aggregate cement and a mass ratio of powder and liquid are set to specific ratios. It is preferable to contain a polymer dispersion at a specific ratio of powder mass. Furthermore, it is preferable to contain fly ash at a specific ratio in the powder. Still furthermore, it is preferable to contain a specific admixture.SELECTED DRAWING: None
Inventors:
Eizo Takeshita
Yoshinori Nagai
Yoshinori Nagai
Application Number:
JP2019061963A
Publication Date:
September 26, 2023
Filing Date:
March 27, 2019
Export Citation:
Assignee:
Taiheiyo Materials Co., Ltd.
International Classes:
C04B28/02; C04B18/08; C04B20/00; C04B22/14; C04B24/12; C04B24/24; E04G23/02
Domestic Patent References:
| JP2014129209A | ||||
| JP2012140265A | ||||
| JP2017149599A |