Title:
ACCELERATING ADMIXTURE FOR HYDRAULIC COMPOSITIONS
Document Type and Number:
Japanese Patent JP2023078316
Kind Code:
A
Abstract:
To provide an accelerating admixture that is obtained from Portland cement or other hydraulic binders with a siliceous base, is highly effective in promoting rapid development of mechanical strength of a cement mixture and, at the same time, presents none of the drawbacks of the accelerating admixtures developed to date.SOLUTION: This invention relates to an accelerating admixture for hydraulic compositions based on C-S-H seeds, obtained by hydration in an aqueous suspension of a hydraulic binder based on Portland cement or other hydraulic binders, with a water/binder ratio (W/B) ranging from 1 to 6, at a temperature ranging from 10°C to 90°C, for times ranging from 2 hours to 300 hours, in the presence of carboxylic acids, the calcium salts thereof, polyethanolamines, or mixtures thereof.SELECTED DRAWING: None
Inventors:
GIORGIO FERRARI
ALBERTO BROCCHI
MARCO SQUINZI
ALBERTO BROCCHI
MARCO SQUINZI
Application Number:
JP2023043746A
Publication Date:
June 06, 2023
Filing Date:
March 20, 2023
Export Citation:
Assignee:
MAPEI SPA
International Classes:
C04B24/04; C04B24/06; C04B24/12; C04B24/18; C04B24/22; C04B24/26; C04B24/30; C04B24/38; C04B28/02
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata