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US 11,691,919 B2Granted
Powdered quick-setting agent, quick-setting material, quick-setting material cured product, and spraying method
AssigneeDenka Company Limited
InventorsTakamitsu Murokawa, Masahiro Iwasaki, Shunichi Mishima, Katsuichi Miyaguchi, Akitoshi Araki, Yasuhiro Ishii, Kenji Hatta, Takanori Sakakibara
Life of this patent
Estimating the term…
Abstract
A powdered quick-setting agent containing a calcium aluminate and a sodium silicate, preferably further containing at least one selected from the group consisting of an alkali metal sulfate, an alkaline earth metal sulfate, and an aluminum sulfate.
Claims13
A powdered quick-setting agent, comprising
- a calcium aluminate;
- a sodium silicate;
- at least one selected from the group consisting of an alkali metal sulfate in an amount of 3 to 25 parts by mass in 100 parts by mass of the powdered quick-setting agent, an alkaline earth metal sulfate in an amount of 10 to 60 parts by mass in 100 parts by mass of the powdered quick-setting agent, wherein a Blaine's specific surface area of the alkaline earth metal sulfate is 3000 cm2/g or more, and an aluminum sulfate in an amount of 5 to 25 parts by mass in 100 parts by mass of the powdered quick-setting agent.
Dependencies are inferred from the claim text.