Curable mixture

1. A curable mixture, comprising:

(I) a mineral binder;

(II) a powder comprising a fluoroorganyl-substituted silicon compound encapsulated in a water-soluble polymer, wherein an amount of the fluoroorganyl-substituted silicon compound is from 0.001% to 8% by weight, based on the curable mixture; and

(III) optionally, an additive.

2. The curable mixture of claim 1 , wherein the mineral binder comprises a hydraulically setting binder selected from the group consisting of a Portland cement, a composite cement, a cement comprising a fraction of pozzolans, and a blast furnace cement.

3. The curable mixture of claim 1 , wherein the fluoroorganyl-substituted silicon compound is a fluoroorganyl-substituted silane, a fluoroorganyl-substituted siloxane, a fluoroorganyl-substituted silicone, or any mixture thereof.

4. The curable mixture of claim 1 , wherein the fluoroorganyl-substituted silicon compound is a fluoroalkylalkoxysilane of formula (I):

F 3 C(CF 2 ) x (C 2 H 4 ) y Si(CH 3 ) z (OR) 3−z   (I),

wherein:

each R is independently a methyl, ethyl, n-propyl, or isopropyl;

x is an integer from 0 to 16;

y is 0 or 1; and

z is 0 or 1.

5. The curable mixture of claim 4 , wherein the fluoroorganyl-substituted silicon compound is tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane, tridecafluoro-1,1,2,2-tetrahydrooctyltrimethoxysilane, or a mixture thereof.

6. The curable mixture of claim 1 , wherein the fraction of the fluoroorganyl-substituted silicon compound in the powder is 2.5% to 90% by weight.

7. The curable mixture of claim 1 , wherein the fluoroorganyl-substituted silicon compound is encapsulated in a water-soluble polymer and the water-soluble polymer and the silicon compound form particles which are dispersible and/or redispersible in water, and

wherein the water-soluble polymer is selected from the group consisting of a polysaccharide, a polysaccharide ether, a protein, a vinyl polymer, a formaldehyde condensate, and an alkylene oxide polymer.

8. The curable mixture of claim 1 , wherein the liquid fluoroorganylalkoxy-substituted silicon compound is encapsulated in a water-soluble polymer, has an average droplet size of 10 nm to 10 μm, and is substantially nonhydrolyzed.

9. The curable mixture of claim 1 , comprising an additive (III), which is an aggregate and an auxiliary, wherein the aggregate is selected from the group consisting of a sand, a gravel, a grit, porphyry, quartz flour, ground limestone, ground rock, a flyash, microsilica, and other silicatic additives.

10. The curable mixture of claim 1 , comprising, based on a total mass of the curable mixture:

2% to 60% by weight of a hydraulic binder;

30% to 90% by weight of an aggregate;

0.001% to 8% by weight of a fluoroorganyl-substituted silicon compound; and

optionally 0% to 40% by weight of a further component.

11. The curable mixture of claim 10 , in the form of a concrete mixture, further comprising, based on a total mass of the concrete mixture:

0.01% to 2% by weight of a plasticizer; and/or

0.01% to 10% by weight of a further auxiliary; or

in the form of a dry mortar further comprising based on a total mass of the dry mortar:

0.001% to 3% by weight of a cellulose ether and/or a cellulose fiber;

0.1% to 40% by weight of a dispersion powder comprising a water-insoluble, film-forming polymer; and

0% to 10% by weight of a further auxiliary.

12. The curable mixture of claim 1 , further comprising:

1% to 50% by weight of water, based on a total weight of the curable mixture.

13. A water-redispersible powder, which hydrophobizes and oleophobizes a cured mixture of claim 1 , comprising:

a water-soluble polymer comprising an organic silicon compound encapsulated therein; and

an organic silicon compound, which is wholly or partly fluorinated,

wherein the fraction of the fluorine-substituted silicon compound is at least 25% by weight, based on the total amount of the silicon compound.

14. The powder of claim 13 , wherein the fluoroorganyl-substituted silicon compound is a fluoroalkylalkoxysilane of formula (I):

F 3 C(CF 2 ) x (C 2 H 4 ) y Si(CH 3 ) z (OR) 3−z   (I),

wherein:

each R is independently a methyl, ethyl, n-propyl, or isopropyl;

x is an integer from 0 to 16;

y is 0 or 1; and

z is 0 or 1.

15. The powder of claim 14 , wherein the fluoroorganyl-substituted silicon compound is tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane, tridecafluoro-1,1,2,2-tetrahydrooctyltrimethoxysilane, or a mixture thereof.

16. A method for producing the curable mixture of claim 1 , the method comprising:

mixing (II) a mineral binder with (II) a powder comprising i) a water-soluble polymer comprising an organic silicon compound encapsulated therein and ii) an organic silicon compound, which is wholly or partly fluorinated, wherein the fraction of the fluorine-substituted silicon compound is at least 25% by weight, based on the total amount of the silicon compound.

17. A method for producing the powder of claim 13 , the method comprising

mixing:

water;

a water-soluble polymer;

a water-insoluble fluoroorganyl-substituted silicon compound; and

optionally, an additive,

to obtain an intermediate at a pH between 4 and 9; and then

drying the intermediate.

18. A process for hydrophobizing and oleophobizing a cured mixture comprising a mineral binder, the process comprising:

mixing the powder of claim 13 with a mixture comprising the mineral binder, to obtain a curable mixture; and

curing the curable mixture.

19. A concrete good or concrete molding, comprising the powder of claim 13 .

20. A process for body modification of a hydraulically setting mixture, the process comprising:

adding the powder of claim 13 to a hydraulically setting mixture.

21. A process for hydrophobizing and oleophobizing a cured mixture, the process comprising:

mixing cement, an aggregate, a fluoroorganyl-substituted silicon compound which is encapsulated in a water-soluble polymer, and optionally, a further auxiliary, to obtain a hydraulically curable mixture comprising 2% to 60% by weight of the cement, 30% to 90% by weight of the aggregate, 0.001% to 8% by weight of the fluoroorganyl-substituted silicon compound, and optionally the further auxiliary.

22. A concrete good or concrete molding, comprising the mixture of claim 1 .

23. A facing concrete, comprising the mixture of claim 1 .

24. A method of both hydrophobizing and oleophobizing a cured product, the method comprising:

including, in a curable mixture in need thereof, a powder comprising a fluoroorganyl-substituted silicon compound encapsulated in a water-soluble polymer, and

curing the curable mixture, thereby obtaining the cured product,

wherein the curable mixture is the curable mixture of claim 14 .