Plaster Treatment Compound

Abstract

A plaster treatment compound, in particular a compound for reinforcing waterproof plaster treatments containing water glass, which contains 20 to 69 wt % of an aqueous solution of potassium silicate, 20 to 59.9 wt % of aqueous lithium silicate solution, 10 to 20 wt % of octyltriethoxysilane, and 0.1 to 1 wt % water glass stabilizer.

Claims

1. A plaster treatment compound, for reinforcing waterproof plaster treatments comprising water glass, comprising 20 to 69 wt % of an aqueous solution of potassium silicate, 20 to 59.9 wt % of aqueous lithium silicate solution, 10 to 20 wt % of octyltriethoxysilane solution, and 0.1 to 1 wt % water glass stabilizer.

2. The plaster treatment compound according to claim 1, the treatment compound further comprises 0.1 to 1 wt % aqueous colloidal silver solution.

3. The plaster treatment compound according to claim 2, wherein the aqueous colloidal silver solution has a concentration of 100 ppm.

4. The plaster treatment compound according to claim 1, wherein the aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide in the range from 1.67 to 1.73.

5. The plaster treatment compound according to claim 1, wherein the aqueous potassium silicate solution has a density in the range from 1650 to 1670 kg/m.sup.3.

6. The plaster treatment compound according to claim 1, wherein the aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide in the range from 3.8 to 4.1.

7. The plaster treatment compound according to claim 1, wherein the aqueous lithium silicate solution has a density in the range from 1100 to 1300 kg/m.sup.3.

8. The plaster treatment compound according to claim 1, wherein the water glass stabilizers are hydrophilic alkoxy alkyl-ammonium salts.

Description

EXAMPLES OF THE PERFORMANCE OF THE INVENTION

Example 1

[0018] The compound for reinforcing waterproof plaster treatments contains 67 wt % of an aqueous solution of potassium silicate, 21 wt % of aqueous lithium silicate solution, 11 wt % of octyltriethoxysilane solution, 0.1 wt % water glass stabiliser, and 0.9 wt % aqueous colloidal silver solution with a concentration of 100 ppm.

[0019] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.7, and a density in the range of 1660 kg/m.sup.3.

[0020] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 4.03, and a density of 1209 kg/m.sup.3.

[0021] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

Example 2

[0022] The compound for reinforcing waterproof plaster treatments contains 69 wt % of an aqueous solution of potassium silicate, 20 wt % of aqueous lithium silicate solution, 10 wt % of octyltriethoxysilane solution, and 1 wt % water glass stabiliser.

[0023] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.67, and a density in the range of 1650 kg/m.sup.3.

[0024] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 3.8, and a density of 1100 kg/m.sup.3.

[0025] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N, N, N N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

Example 3

[0026] The compound for reinforcing waterproof plaster treatments contains 68 wt % of an aqueous solution of potassium silicate, 20 wt % of aqueous lithium silicate solution, 10 wt % of octyltriethoxysilane solution, 1 wt % water glass stabiliser, and 1 wt % aqueous colloidal silver solution with a concentration of 100 ppm.

[0027] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.73, and a density in the range of 1670 kg/m.sup.3.

[0028] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 4.1, and a density of 1300 kg/m.sup.3.

[0029] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

Example 4

[0030] The compound for reinforcing waterproof piaster treatments contains 69 wt % of an aqueous solution of potassium silicate, 20 wt % of aqueous lithium silicate solution, 10 wt % of octyltriethoxysilane solution, and 1 wt % water glass stabiliser.

[0031] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.69, and a density in the range of 1655 kg/m.sup.3.

[0032] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 4.05, and a density of 1250 kg/m.sup.3.

[0033] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

Example 5

[0034] The compound for reinforcing waterproof plaster treatments contains 20 wt % of aqueous potassium silicate solution, 59.8 wt % of aqueous lithium silicate solution, 20 wt % of octyltriethoxysilane solution, 0.1 wt % water glass stabiliser, and 0.1 wt % aqueous colloidal silver solution with a concentration of 100 ppm.

[0035] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.69, and a density in the range of 1660 kg/m.sup.3.

[0036] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 4.01, and a density of 1150 kg/m.sup.3.

[0037] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

Example 6

[0038] The compound for reinforcing waterproof plaster treatments contains 20 wt % of aqueous potassium silicate solution, 59.9 wt % of aqueous lithium silicate solution, 20 wt % of octyltriethoxysilane solution, and 0.1 wt % water glass stabiliser.

[0039] The aqueous potassium silicate solution has a molar mass ratio of silica to potassium oxide of 1.68, and a density in the range of 1662 kg/m.sup.3.

[0040] The aqueous lithium silicate solution has a molar mass ratio of silica to lithium oxide of 4.03, and a density of 1211 kg/m.sup.3.

[0041] The water glass stabilisers are hydrophilic alkoxy alkyl-ammonium salts, in the form of a 98% aqueous solution of N,N,N′,N′-Tetrakis (2-hydroxypropyl) ethylenediamine.

INDUSTRIAL APPLICATION

[0042] The plaster treatment compound according to the invention can be used for the surface treatment of plaster, in particular for the renovation of old plaster and for the renovation of plaster on damp walls.