Building waterproofing kit-of-parts and use thereof as liquid building waterproofing agent and use thereof

Abstract

A building waterproofing kit-of-parts comprising A) an aqueous first composition, containing ao) water, a1) a ketone solvent and a2) a carboxylic acid and a3) an alkylalkoxysilane and/or a4) an aminoalkylalkoxysilane, and B) a second composition, containing b1) an alkylalkoxysilane and b2) a hydrocarbon solvent as well as b3) an alcohol solvent and/or b4) an ester solvent and/or b5) a ketone solvent. Use of the kit-of-parts for the waterproofing of buildings and the elimination of moisture damage in buildings. Liquid building waterproofing agent, obtained by blending the compositions A) and B).

Claims

1. A building waterproofing kit-of-parts, comprising a first composition and a second composition, A) the first composition, containing a0) water, a1) at least one ketone solvent, at least one alcohol solvent or at least one ester solvent, a2) at least one carboxylic acid with 1 to 10 carbon atoms, and at least one component selected from the group consisting of a3) at least one alkylalkoxysilane, a4) at least one aminoalkylalkoxysilane, aminoalkylsilane and aminoalkoxysilane, and B) the second composition, containing b1) at least one alkylalkoxysilane, and at least one component selected from the group consisting of b2) at least one hydrocarbon solvent, b3) at least one alcohol solvent, ketone solvent and ester solvent.

2. The building waterproofing kit-of-parts according to claim 1, wherein the at least one ketone solvent a1) is selected from the group consisting of acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and their mixtures, and/or wherein the at least one aminoalkylalkoxysilane a4) comprises at least one aminoalkyldialkoxysilane and/or one aminoalkyldiethoxysilane and/or is selected from the group consisting of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 2-aminopropyl-3-aminopropyltriemthoxysilane, 2-aminopropyl-3-aminopropyltriethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltrimethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltriethoxysilane, N-(n-butyl)-3-aminopropyltrimethoxysilane and their mixtures, and/or wherein the at least one alkylalkoxysilane a3) and/or the at least one alkylalkoxysilane b1) comprises at least one trifunctional silane compound, mixtures and/or at least one difunctional silane compound, and/or wherein the at least one carboxylic acid with 1 to 10 carbon atoms a2) is selected from the group consisting of formic acid, acetic acid, propionic acid, butyric acid, 2-methyl butyric acid, isovaleric acid, trimethyl acetic acid, glycolic acid, lactic acid and their mixtures, and/or wherein the at least one ester solvent b3) is selected from the group consisting of methyl acetate, ethyl acetate, n-butyl acetate, amyl acetate and their mixtures, and/or wherein the at least one alcohol solvent b3) is selected from the group consisting of methanol, ethanol, isopropanol, n-butanol, isobutanol, sec-butanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether and their mixtures, and/or wherein the at least one hydrocarbon solvent b2) is selected from the group consisting of toluene, xylene, cyclohexane, n-hexane, octane and their mixtures.

3. The building waterproofing kit-of-parts according to claim 2, wherein the at least one ketone solvent a1) represents or comprises acetone, and/or wherein the at least one aminoalkylalkoxysilane of a4) represents or comprises 3-aminopropyltrimethoxysilane, and/or wherein the at least one alkylalkoxysilane a3) and/or the at least one alkylalkoxysilane b1) is selected from the group consisting of methyltrimethoxysilane, phenyltrimethoxysilane, methyltriethoxysilane, phenyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane and their mixtures, and/or wherein the at least one difunctional silane compound is selected from the group consisting of dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldiethoxysilane, diphenyldimethoxysilane and their mixtures, and/or wherein the at least one carboxylic acid with 1 to 10 carbon atoms a2) represents or comprises formic acid, and/or wherein the at least one ester solvent of b3) comprises or represents ethyl acetate, and/or wherein the at least one alcohol solvent of b3) represents or comprises ethanol and/or isopropanol, and/or wherein the at least one hydrocarbon solvent b2) comprises or represents toluene.

4. The building waterproofing kit-of-parts according to claim 1, wherein the at least one alkylalkoxysilane a3) comprises or represents isobutyltrimethoxysilane, and/or wherein the at least one alkylalkoxysilane b1) comprises or represents triethoxymethylsilane.

5. The building waterproofing kit-of-parts according to claim 1, wherein the at least one alcohol solvent of b3) represents ethanol and isopropanol.

6. The building waterproofing kit-of-parts according to claim 5, wherein a quantity of isopropanol is greater than a quantity of ethanol in relation to a volume fraction used.

7. The building waterproofing kit-of-parts according to claim 1, wherein the first composition A) contains 0.5 to 5.0 weight percent, of the at least one ketone solvent of a1), 0.01 to 1.0 weight percent of the at least one aminoalkylalkoxysilane of a4), 0.01 to 1.0 weight percent of the at least one alkylalkoxysilane a3), 0.001 to 0.75 weight percent of the at least one carboxylic acid a2) with 1 to 10 carbon atoms and/or 80.0 to 99.0 weight percent of water a0), in each case in relation to the total weight of the composition A), wherein components forming the first composition A) always amount to 100 weight percent, and/or wherein the second composition B) contains 30.0 to 80.0 weight percent of the at least one alkylakoxysilane b1), 1.0 to 15.0 weight percent of the at least one ester solvent of b3), 20.0 to 70.0 weight percent of the at least one alcohol solvent of b3), 0.01 to 1.0 weight percent of the at least one hydrocarbon solvent b2), in each case in relation to the total weight of the second composition B), wherein components forming first second composition B) always amount to 100 weight percent.

8. The building waterproofing kit-of-parts according to claim 7, wherein the first composition A) contains 1.0 to 3.0 weight percent of the at least one ketone solvent a1), 0.1 to 0.5 weight percent of the at least one aminoalkylalkoxysilane of a4), 0.1 to 0.5 weight percent of the at least one alkylalkoxysilane a3), 0.01 to 0.25 weight percent of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, and/or 95.0 to 98.0 weight percent of water a0), in each case in relation to the total weight of the aqueous composition A), wherein the components forming the first composition A) always amount to 100 weight percent.

9. The building waterproofing kit-of-parts according to claim 7, wherein the second composition B) contains 45 to 65 weight percent of the at least one alkylakoxysilane b1), 2.0 to 7.0 weight percent of the at least one ester solvent of b3, 30.0 to 50.0 weight percent of the at least one alcohol solvent of b3), and/or 0.1 to 0.5 weight percent of the at least one hydrocarbon solvent b2), in each case in relation to the total weight of the second composition B), wherein the components forming the second composition B) always amount to 100 weight percent.

10. The building waterproofing kit-of-parts according to claim 1, wherein the second composition B) contains 20.0 to 70.0 weight percent isopropanol, and 0.1 to 10.0 weight percent ethanol in each case in relation to the total weight of the composition B).

11. The building waterproofing kit-of-parts according to claim 1, wherein the first composition A) and/or the second composition B) represent a single-phase system.

12. The building waterproofing kit-of-parts according to claim 1, wherein a volume ratio between compositions A) and B) is in a range of 2:1 to 50:1.

13. The building waterproofing kit-of-parts according to claim 1, characterized by A) the first composition, containing a0) water, a1) the at least one ketone solvent, a2) the at least one carboxylic acid with 1 to 10 carbon atoms, a3) the at least one alkylalkoxysilane, a4) the at least one aminoalkylalkoxysilane, the at least one aminoalkylsilane and/or the at least one aminoalkoxysilane, and B) the second composition, containing b1) the at least one alkylalkoxysilane, and b2) the at least one hydrocarbon solvent, b3) the at least one alcohol solvent and the at least one ester solvent solvent.

14. The building waterproofing kit-of-parts according to claim 13, wherein component a4) is aminoalkylalkoxysilane.

15. The building waterproofing kit-of-parts according to claim 1, wherein the composition A) is obtainable through i) producing a mixture of the at least one carboxylic acid of a2) with 1 to 10 carbon atoms and water, ii) producing a mixture of the at least one ketone solvent, the at least one alcohol and/or the at least one solvent, the at least one aminoalkylalkoxysilane of a4) and the at least one alkylalkoxysilane of a3), iii) mixing compositions obtained according to step i) and step ii).

16. The building waterproofing kit-of-parts according to claim 15, wherein the mixing according to step iii) comprises addition of a composition obtained according to step ii) to a composition obtained according to step i).

17. The building waterproofing kit-of-parts according to claim 1, wherein the composition A) has a pH value in a range of 3.0 to 5.0 or of less than 5.0, or is adjusted to a pH value in a range of 3.0 to 5.0 or of less than 5.0.

18. The building waterproofing kit-of-parts according to claim 1, wherein the building waterproofing kit-of-parts is a masonry waterproofing kit-of-parts.

19. The building waterproofing kit-of-parts according to claim 1, wherein the component a1) is a ketone solvent, and the component a4) is aminoalkylalkoxysilane.

20. The building waterproofing kit-of-parts according to claim 1, wherein the component b3) is an alcohol solvent and an ester solvent.

Description

(1) In some embodiments, it is provided that the building waterproofing kit-of-parts, in some cases the masonry waterproofing kit-of-parts, contains A) a first aqueous composition, consisting of or containing a0) water, a1) at least one ketone solvent, alcohol solvent or ester solvent, in some cases ketone solvent, a2) at least one carboxylic acid with 1 to 10 carbon atoms, a3) at least one alkylalkoxysilane, and a4) at least one aminoalkylalkoxysilane, and B) a second composition, consisting of or containing b1) at least one alkylalkoxysilane, b2) at least one hydrocarbon solvent, b3) at least one alcohol solvent, ketone solvent and/or ester solvent, in some cases alcohol solvent, and b4) at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ester solvent

(2) In some other embodiments, the kit-of-parts according to the present disclosure is characterized by A) a first composition, consisting of or containing a0) water, a1) at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ketone solvent, a2) at least one carboxylic acid with 1 to 10 carbon atoms, a3) at least one alkylalkoxysilane, and a4) at least one, in some cases present in protonated form, aminoalkylalkoxysilane, aminoalkylsilane and/or aminoalkoxysilane, in some cases aminoalkylalkoxysilane, and/or, in some cases and, B) a second composition, consisting of or containing b1) at least one alkylalkoxysilane, and b2) at least one hydrocarbon solvent, b3) at least one alcohol solvent, ketone solvent and/or ester solvent, in some cases alcohol solvent, and b4) at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ester solvent.

(3) Such embodiments of the kit-of-parts according to the present disclosure which are suitable are also those which are characterized by A) A) a first composition, consisting of or containing a0) water, a1) at least one ketone solvent, in some cases acetone, a2) at least one carboxylic acid with 1 to 10 carbon atoms, in some cases formic acid, a3) at least one alkylalkoxysilane, in some cases isobutyltrimethoxysilane, a4) at least one, in some cases present in protonated form, aminoalkylalkoxysilane, in some cases protonated 3-aminopropyltrimethoxysilane, and/or, in some cases and, B) a second composition, consisting of or containing b1) at least one alkylalkoxysilane, in some cases triethoxymethylsilane, and b2) at least one hydrocarbon solvent, in some cases toluene, b3) at least one alcohol solvent, in some cases ethanol and/or isopropanol, and b4) at least one ester solvent, in some cases ethyl acetate.

(4) In one embodiment, the component a4) in composition A) is present in protonated form due to the simultaneous presence of the carboxylic acid a2), in some cases formic acid. Further, in some embodiments, the component a3) is also present in composition A). Without being bound to a theory, it is currently assumed that, due to the presence of component a4) in protonated form, the component a3), which is usually not water-soluble, is present in solution in the aqueous first composition A). Accordingly, satisfactory results are achieved in some cases with a kit-of-parts according to the present disclosure containing a first composition A), which represents a single-phase system, i.e. an aqueous system, which in any case temporarily does not show any de-mixing.

(5) For the production of composition A), a mixture is in some cases first produced from the at least one carboxylic acid with 1 to 10 carbon atoms a2), in some cases formic acid, and water. Separately, the components a1), a3) and in some cases also a4) are then mixed with each other. In some cases, this mixture is added to the aqueous system containing component a2) while stirring. In one advantageous design, the pH value of this mixture lies in the range of 3.0 to 5.0 or is less than 5.0 or is adjusted to such a value. The composition A) obtained in this manner is in some cases transparent.

(6) Buildings or masonry that can be treated with the kit-of-parts according to the present disclosure comprise, e.g., cellar and ground floor walls and building ceilings, as well as suspended ceilings.

(7) The ketone solvent a1), in some cases also b3) and/or b4), is in some cases selected from the group consisting of acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, and their mixtures. In some cases, component a1) is a ketone solvent. This in some cases comprises acetone or is acetone.

(8) The aminoalkylalkoxysilane a4) in some cases comprises at least one aminoalkyldialkoxysilane, one aminoalkyldiethoxysilane or a mixture of these compounds, or consists of these. In some variants of the building waterproofing kit-of-parts according to the present disclosure, in some cases the masonry waterproofing kit-of-parts according to the present disclosure, the aminoalkylalkoxysilane a4) is selected from the group consisting of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 2-aminopropyl-3-aminopropyltriemthoxysilane, 2-aminopropyl-3-aminopropyltriethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltrimethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltriethoxysilane, N-(n-butyl)-3-aminopropyltrimethoxysilane and their mixtures. In some cases recourse is made to 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane and/or 3-aminopropyltrimethoxysilane and in some cases to 3-aminopropyltrimethoxysilane.

(9) Together or independently of each other, the alkylalkoxysilane a3) and the alkylalkoxysilane b1) can be a trifunctional silane compound or be formed from a mixture containing at least two trifunctional silane compounds. The alkylalkoxysilanes a3) and/or b1) are here in some cases selected from the group consisting of methyltrimethoxysilane, phenyltrimethoxysilane, methyltriethoxysilane, phenyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane and their mixtures. Alternatively or additionally, recourse can be had to at least one difunctional silane compound for the alkylalkoxysilanes a3) and/or b1). This difunctional silane compound is in some cases selected from the group consisting of dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldiethoxysilane, diphenyldimethoxysilane and their mixtures. In a further suitable design, the alkylalkoxysilane a3) and/or the alkylalkoxysilane b1), in some cases the alkylalkoxysilane b1), can comprise or consist of at least one methyltrialkoxysilane and/or at least one dimethylalkoxysilane, in some cases a methyltrialkoxysilane, e.g. methyltrimethoxysilane and/or methyltriethoxysilane.

(10) In another suitable embodiment, the at least one carboxylic acid with 1 to 10 carbon atoms a2) is selected from the group consisting of formic acid, acetic acid, propionic acid, butyric acid, 2-methyl butyric acid, isovaleric acid, trimethyl acetic acid, glycolic acid, lactic acid and their mixtures. For component a2), recourse is in some cases made to formic acid, acetic acid and/or propionic acid, in some cases to formic acid.

(11) The at least one ester solvent b4), in some cases also a1) and/or b3), can in some cases be selected from the group consisting of methyl acetate, ethyl acetate, n-butyl acetate, amyl acetate and their mixtures. Ethyl acetate as component b4) in some cases has proven to be suitable for the building waterproofing kit-of-parts according to the present disclosure, in some cases the masonry waterproofing kit-of-parts.

(12) The at least one alcohol solvent b3), in some cases also a1) and/or b4), is in some cases selected from the group consisting of methanol, ethanol, isopropanol, n-butanol, isobutanol, sec-butanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether and their mixtures. Among the alcohol solvents, in some cases according to component b3), ethanol and/or isopropanol have proven themselves to be suitable in some cases. In some other cases a mixture of ethanol and isopropanol is used as component b3).

(13) For the at least one hydrocarbon solvent b2), recourse can be had to liquid aromatic and/or aliphatic hydrocarbons and it is in some cases selected from the group consisting of toluene, xylene, cyclohexane, n-hexane, octane and their mixtures. For component b2), recourse is made in some cases to toluene.

(14) While in some embodiments isobutyltrimethoxysilane, and/or isobutyltriethoxysilane, in some cases isobutyltriethoxysilane, is used for the alkylalkoxysilane a3), in some other embodiments, triethoxymethylsilane is used for the at least one alkylalkoxysilane b1) as an alternative or in some cases simultaneously.

(15) Here, the quantity of isopropanol is in some cases greater than the quantity of ethanol in relation to the volume share used.

(16) The present disclosure also provides such building waterproofing kits-of-parts, in some cases masonry waterproofing kits-of-parts, in which the first aqueous composition A) contains 0.5 to 5.0 weight percent, in some cases 0.75 to 4.0 weight percent, and in some other cases 1.0 to 3.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ketone solvent, a1), in some other cases acetone, 0.01 to 1.0 weight percent, in some cases 0.05 to 0.75 weight percent, and in some other cases 0.1 to 0.5 weight percent of the at least one aminoalkylalkoxysilane a4), in some cases 3-aminopropyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane and/or 3-aminopropyltrimethoxysilane, in some other cases 3-aminopropyltrimethoxysilane, 0.01 to 1.0 weight percent, in some cases 0.05 to 0.75 weight percent and in some other cases 0.1 to 0.5 weight percent of the at least one alkylalkoxysilane a3), in some cases isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in some other cases isobutyltrimethoxysilane, 0.001 to 0.75 weight percent, in some cases 0.005 to 0.5 weight percent, and in some other cases 0.01 to 0.25 weight percent, of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, in some cases formic acid, acetic acid and/or propionic acid, in some other cases formic acid, and/or 80.0 to 99.0 weight percent, in some cases 90.0 to 98.5 weight percent, and in some other cases 95.0 to 98.0 weight percent, water a0), in each case in relation to the total weight of the aqueous composition A), wherein the components forming the first aqueous composition A) always amount to 100 weight percent. The aqueous composition A) in some cases has the components formic acid, 3-aminopropyltrimethoxysilane and isobutyltrimethoxysilane. In some cases, fully desalinated water is used as suitable water.

(17) According to another embodiment, the composition A), alongside the components a0) to a4), contains no tenside additives, in some cases no further additives.

(18) The present disclosure further provides such building waterproofing kits-of-parts according to the present disclosure, in some cases masonry waterproofing kits-of-parts, in which as an alternative or in some cases simultaneously, the second composition B) contains 30.0 to 80.0 weight percent, in some cases 40.0 to 70 weight percent, and in some other cases 45 to 65 weight percent of the at least one alkylakoxysilane b1), in some cases triethoxymethylsilane and/or trimethoxymethylsilane, in some further cases triethoxymethylsilane. 1.0 to 15.0 weight percent, in some cases 1.5 to 10.0 weight percent, and in some other cases 2.0 to 7.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ester solvent, b4), in some other cases ethyl acetate, 20.0 to 70.0 weight percent, in some cases 25.0 to 60.0 weight percent, and in some other cases 30.0 to 50.0 weight percent, of the at least one alcohol solvent, ketone solvent and/or ester solvent, in some cases alcohol solvent, b3), in some other cases ethanol and/or isopropanol, in some further cases ethanol and isopropanol, and/or 0.01 to 1.0 weight percent, in some cases 0.05 to 0.75 weight percent and in some other cases 0.1 to 0.5 weight percent of the at least one hydrocarbon solvent b2), in some cases toluene, in each case in relation to the total weight of the composition B), wherein the components forming the composition B) always amount to 100 weigh percent.

(19) The compositions A) and B) and the mixture obtained from A) and B) are in some cases characterized by a watery or essentially water-like viscosity (determined at 22 C.). Component B) is in some cases essentially water-free.

(20) Among the kit-of-parts according to the invention those are particularly suitable in which the second composition B), in each case in relation to the total weight of the composition B), contain 20.0 70.0 weight percent, preferably 25.0 to 60.0 weight percent, and particularly preferred 30.0 to 50.0 weight percent isopropanol, and 0.1 to 10 weight percent, preferably 0.2 to 5.0 weight percent, and particularly preferably 0.5 to 3.0 weight percent ethanol.

(21) With the kits-of-parts according to the present disclosure, the first aqueous composition A) and/or the second composition B) in some cases are single-phase systems.

(22) The volume ratio between compositions A) and B) is in some cases in the range of 2:1 to 50:1, in some cases in the range of 5:1 to 40:1, and in some other cases in the range of 8:1 to 20:1.

(23) Further, the present disclosure is also attained by way of those building waterproofing kits-of-parts, in some cases masonry waterproofing kits-of-parts, in which composition A) is obtainable by i) producing a mixture of the at least one carboxylic a2) with 1 to 10 carbon atoms, in some cases propionic acid, acetic acid and/or in some cases formic acid, in some further cases and water a0), ii) producing a mixture of the at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ketone solvent a1), in some cases acetone, the at least one aminoalkylalkoxysilane a4), in some cases 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane and/or aminopropyltrimethoxysilane and in some cases 3-aminopropyltrimethoxysilane, and the at least one alkylalkoxysilane a3), in some cases isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in some other cases isobutyltrimethoxysilane, iii) mixing the compositions obtained according to step i) and step ii).

(24) Here, the mixing according to step iii) can comprise the addition of the composition obtained according to step ii) to the composition obtained according to step i). The mixing is here in some cases conducted by way of stirring, wherein in an advantageous design, the mixing is conducted such that oily deposits do not occur on the surface.

(25) Furthermore, the composition A) can, in one embodiment according to the present disclosure, have a pH value in the range of 3.0 to 5.0 or of less than 5.0, in some cases in the range of 3.5 to 4.9, and in other some cases in the range of 3.7 to 4.8, or can be adjusted to a pH value in the range of 3.0 to 5.0 or of less than 5.0, in some cases in the range of 3.5 to 4.9, or in the range of 3.7 to 4.8.

(26) The kit-of-parts according to the present disclosure is suitable in some cafor waterproofing a building, in some cases masonry, in some further cases damp masonry, for the removal of moisture damage in buildings, in some cases masonry, for the moisture sealing of buildings, in some cases masonry, and/or for the formation of an, in some cases essentially horizontal, moisture barrier in buildings, in some cases in masonry.

(27) The present disclosure is also attained by way of an aqueous building waterproofing agent, in some cases an aqueous masonry waterproofing agent, obtained or obtainable by mixing composition A) and composition B) of the kit-of-parts according to the present disclosure.

(28) This building or masonry waterproofing agent in some cases has a pH in the range of 3.0 to 5.0 or of less than 5.0, in some cases in the range of 3.5 to 4.9, and in some other cases in the range of 3.7 to 4.8, or is adjusted to a pH in the range of 3.0 to 5.0 or of less than 5.0, in some cases in the range of 3.5 to 4.9.

(29) The building or masonry waterproofing agent according to the present disclosure is in some cases essentially directly injected after production from components A) and B) of the kit-of-parts according to the present disclosure via bore holes and is injected into the damp masonry with the aid of cannulas inserted into said bore holes. The building or masonry waterproofing agent according to the present disclosure is characterized by a surprisingly long shelf life, for example over a period of up to one day, in some cases of up to 12 hours. For many applications, it is recommended that the agent according to the present disclosure be used prior to expiry of a storage period of eight hours following mixing of components A) and B). The injection techniques described are known to a person skilled in the art. The bore holes should expediently not be drilled through the entire building or masonry, but instead not penetrate a wall fully, for example. These bore holes are designed such that cannulas or so-called diffusors can be easily inserted. By connecting these cannulas or diffusors with liquid containers arranged at a relatively high position by way of hoses or pipes, the liquid building or masonry waterproofing agent according to the present disclosure can seep into a building or masonry. The number and arrangement of the bore holes depend on the conditions of the respective building or the respective masonry. Frequently, it is often sufficient when the individual bore holes are set at a distance of approximately 10 to 20 cm in an essentially horizontal row. Due to the capillary effect, at first, an even distribution of the aqueous system occurs. Although considerably quantities of water are additionally applied to the masonry with the use of the kit-of-parts according to the present disclosure, the formation of a moisture-free area, which also serves as a horizontal humidity barrier, is achieved. Naturally, vertical or diagonal or large-volume moisture barriers can be formed via the bore holes, depending on the nature of the application.

(30) The present disclosure is further attained by way of an aqueous composition containing 3.0 to 8.0 weight percent, in some cases 4.0 to 7.0 weight percent, and in some other cases 5.0 to 6.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, in some cases ketone solvent, a1), in some other cases acetone, 0.1 to 1.2 weight percent, in some cases 0.3 to 1.0 weight percent, and in some other cases 0.5 to 0.8 weight percent of the at least one aminoalkylalkoxysilane a4), 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane and/or 3-aminopropyltrimethoxysilane, in some cases 3-aminopropyltrimethoxysilane, 0.1 to 1.2 weight percent, in some cases 0.3 to 1.0 weight percent and in some other cases 0.5 to 0.8 weight percent of the at least one alkylalkoxysilane a3), in some cases isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in some other cases isobutyltrimethoxysilane, 0.01 to 0.75 weight percent, in some cases 0.05 to 0.5 weight percent, and in some other cases 0.1 to 0.25 weight percent, of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, in some cases formic acid, acetic acid and/or propionic acid, in some other cases formic acid, and/or 88.85 to 96.79 weight percent, in some cases 90.5 to 95.35 weight percent, and in some other cases 92.15 to 93.9 weight percent, water, in each case in relation to the total weight of the aqueous composition, wherein the components forming the aqueous composition always amount to 100 weight percent.

(31) This aqueous composition according to the present disclosure can in some cases also be used as a concentrate for the production of composition A) of the kit-of-parts according to the present disclosure. This makes transportation and handling considerably easier.

(32) The features of the present disclosure disclosed in the foregoing description and in the claims can be essential for the implementation of the present disclosure in its different embodiments, both individually as well as in any combination.

(33) The various embodiments described above can be combined to provide further embodiments. All of the patents, patent applications, and non-patent publications referred to in this specification and/or listed in the Application Data Sheet are incorporated herein by reference, in their entirety. Aspects of the embodiments can be modified, if necessary to employ concepts of the various patents, applications, and publications to provide yet further embodiments.

(34) These and other changes can be made to the embodiments in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.