Title:
HYDRAULIC CEMENT COMPOSITION AND CEMENT-CONCRETE COMPOSITION
Document Type and Number:
Japanese Patent JP2023028446
Kind Code:
A
Abstract:
To provide a cement composition that prevents deterioration in strength due to displacement without impairing the features of alumina cement and has excellent neutralization resistance.SOLUTION: Provided is a hydraulic cement composition which contains 100 pts.mass of a binder composed of 5 to 90 pts.mass of alumina cement and 95 to 10 pts.mass of a latent hydraulic material, and also contains 5 to 300 pts.mass of a non-hydraulic compound, and in which the non-hydraulic compound is one kind of, or two or more kinds selected from a group consisting of γ-2CaO-SiO2, 3CaO-2SiO2, α-CaO-SiO2 and calcium magnesium silicate, and the non-hydraulic compound contains Li and a content ratio of Li in the non-hydraulic compound is 0.001 to 1.0 mass% in terms of oxide.SELECTED DRAWING: None
Inventors:
SASAKI TAKASHI
YAMAGISHI TAKANORI
NAKAMURA RUNA
YAMAGISHI TAKANORI
NAKAMURA RUNA
Application Number:
JP2021134145A
Publication Date:
March 03, 2023
Filing Date:
August 19, 2021
Export Citation:
Assignee:
DENKA CO LTD
International Classes:
C04B28/06; C04B7/32; C04B18/08; C04B18/14; C04B22/08
Attorney, Agent or Firm:
Masahiro Taguchi
Shigeo Torayama
Takashi Ito
Shigeo Torayama
Takashi Ito