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US 2025/0084002 A1Published application
A cementitious composition, a composite material, and a method of manufacturing the composite material
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsTandré Oey, Tapio Vehmas
Life of this patent
Estimating the term…
Abstract
According to an example aspect of the present invention, there is provided a composition comprising: a cementitious material; an alpha-hydroxy acid; and at least 4 wt-% of a salt of an alkaline earth metal, calculated from the total dry matter of the cementitious material.
Claims24
A cementitious composition comprising:
- a cementitious material;
- an alpha-hydroxy acid;
- and
- at least 4 wt-% of a salt of an alkaline earth metal, calculated from the total dry matter of the cementitious material.
1 more element
The cementitious composition according to any of the preceding claims, wherein the amount of the calcium salt is at least 5 wt-% of the total dry matter of the cementitious material.
(canceled)
A method of preparing a composite material, the method comprising:
- dissolving an alpha-hydroxy acid and a salt of an alkaline earth metal in water to obtain an aqueous solution;
- mixing the obtained aqueous solution with a cementitious material and aggregate material to obtain a hardenable mixture;
- and
- allowing the hardenable mixture to harden and set to obtain a composite material, wherein the amount of the salt of an alkaline earth metal in the composite material is at least 4 wt-%, calculated from the total dry matter of the cementitious material.
1 more element
24-27. (canceled)
Dependencies are inferred from the claim text.