Two-component quick-drying waterproof plugging material and preparation method thereof

Abstract

The invention belongs to the technical field of waterproof leaking stoppage materials, particularly relates to a two-component quick-drying waterproof leaking stoppage material and a preparation method thereof, and provides the following scheme that the two-component quick-drying waterproof leaking stoppage material comprises a powder material and a liquid material, and the weight ratio of the powder material to the liquid material is 1: (0.2-0.36); the powder material is prepared from the following raw materials in parts by mass: 25 to 45 parts of 42.5-grade ordinary Portland cement, 15 to 25 parts of low-alkali sulphoaluminate cement, 30 to 50 parts of 70 to 140-mesh quartz sand, 1 to 20 parts of 400-mesh ground calcium carbonate, 0.05 to 0.3 part of an accelerator, 0.05 to 0.25 part of a retarder, 0.1 to 0.4 part of a water reducing agent, 0.1 to 1 part of an early strength agent and 0.1 to 0.3 part of cellulose ether. The invention provides an early strength technology for a two-component polymer modified cement waterproof plugging material, solves the problems that the currently used polymer waterproof material can be subjected to the next process for at least 48 hours, is easy to crack and the like, well balances the construction time, the opening time and the quick hardening performance of the material, greatly shortens the construction period, and reduces the construction cost. And manpower is saved, and the existing rapid decoration requirement is completely met.

Description

TECHNICAL FIELD

[0001] The present application relates to waterproof plugging material technology field, especially to a two-component quick-drying waterproof plugging material and a preparation method thereof. BACKGROUND

[0002] Waterproof plugging material is a material that can quickly solidify in a short time, thereby effectively preventing clear water from leaking. Inorganic plugging material has the advantages of no aging phenomenon, good waterproof plugging effect, low cost, etc., and is thus used on a large scale.

[0003] Polymer waterproof mortar needs to reach the initial setting state (about 24-48 hours) before the subsequent light weight processes such as surface inspection and equipment installation can be carried out. At this time, the surface of the mortar begins to harden preliminarily, but heavy objects need to be avoided from pressing and water needs to be avoided from washing, and the mortar needs to wait until it enters the final setting stage (completely hardened and strength improved). In a conventional case, the waterproof layer needs to be cured for 48 hours before the water tightness test is carried out to ensure the waterproof effect. If the construction environment is humid or the indoor humidity is large, it needs to be extended to 72 hours to ensure that the waterproof layer is fully dried. The existing waterproof material needs at least 48 hours or more before the next process, and is prone to cracking. SUMMARY

[0004] Based on the problems in the background art, the present application provides a two-component quick-drying waterproof plugging material and a preparation method thereof.

[0005] The two-component quick-drying waterproof plugging material provided by the present application comprises a powder and a liquid, and the weight ratio of the powder and the liquid is 1:0.2-0.36. The powder is made of the following raw materials in parts by mass: 25-45 parts of 42.5-grade ordinary portland cement, 15-25 parts of low-alkali sulphoaluminate cement, 30-50 parts of 70-140-mesh quartz sand, 1-20 parts of 400-mesh heavy calcium carbonate, 0.05-0.3 parts of a quick-setting agent, 0.05-0.25 parts of a retarder, 0.1-0.4 parts of a water reducing agent, 0.1-1 parts of an early strength agent, 0.1-0.3 parts of a cellulose ether; The liquid is made of the following raw materials in percentage by mass: 25-40 parts of an acrylate emulsion, 0.1-0.8 parts of an iron oxide color paste, 0.1-0.4 parts of an antifoaming agent, 0.05-0.2 parts of a preservative, Water 58.99-74.75 parts.

[0006] Preferably, the acrylate emulsion is a polyacrylate emulsion with Tg=6℃ obtained by the reaction of methyl acrylate, ethyl acrylate and two or more of the above.

[0007] Preferably, the accelerator is one or a mixture of lithium carbonate and lithium sulfate.

[0008] Preferably, the retarder includes one or a mixture of tartaric acid and sodium tartrate.

[0009] Preferably, the early strength agent is one or a mixture of calcium formate and calcium nitrate.

[0010] Preferably, the cellulose ether is hydroxymethyl propyl cellulose ether or hydroxyethyl cellulose ether with viscosity of 15000-65000 mPas.

[0011] Preferably, the water reducing agent is melamine or modified polycarboxylic acid ether.

[0012] The application also provides a preparation method of the two-component quick-drying waterproof plugging material, which comprises the following steps: Step one, liquid components are weighed according to the following mass fractions: acrylate emulsion 25-40 parts, iron oxide color paste 0.1-0.8 parts, defoaming agent 0.1-0.4 parts, preservative 0.05-0.2 parts, and water 58.99-74.75 parts, and A component is obtained by stirring and mixing; Step two, liquid components are weighed according to the following mass fractions: 42.5-grade ordinary portland cement 25-45 parts, low-alkali sulphoaluminate cement 15-25 parts, 70-140 mesh quartz sand 30-50 parts, 400 mesh heavy calcium carbonate 1-20 parts, accelerator 0.05-0.3 parts, retarder 0.05-0.25 parts, water reducing agent 0.1-0.4 parts, early strength agent 0.1-1 parts, and cellulose ether 0.1-0.3% parts; Step three, when used, B component is poured into A component and stirred for 5-10 minutes to obtain the finished quick-drying waterproof plugging material.

[0013] The application has the following beneficial effects: In order to make up for the existing waterproofing deficiency and meet the existing fast-paced decoration, the application provides a two-component quick-drying waterproof plugging material and a use method thereof, which is used in the early strength technology of two-component polymer modified cement waterproof plugging material, solves the problems that the currently used polymer waterproof material can only be used for the next process after at least 48 hours and is prone to cracking, and well balances the workable time, open time and hardening speed of the material, greatly shortens the construction period, saves labor and fully meets the needs of the existing fast decoration. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0015] In this embodiment 1, the weight ratio of the powder to the liquid is 1:0.2. The liquid is made of the following raw materials in the following weight percentages: 35% of acrylic emulsion, 0.5% of iron oxide color paste, 0.3% of defoaming agent, 0.2% of preservative, 64% of water, The powder is made of the following raw materials in the following weight percentages: 25% of ordinary Portland cement of grade 42.5, 15% of low-alkali sulphoaluminate cement, 47.75% of 70-140 mesh quartz sand, 10% of 400 mesh heavy calcium carbonate, 0.2% of accelerator, 0.2% of retarder, 0.4% of water reducing agent, 0.5% of early strength agent, 0.05% of cellulose ether, The preparation method of the two-component quick-drying waterproof plugging material comprises the following steps: (1) weigh the above-mentioned substances: acrylic emulsion, color paste, defoaming agent, preservative, and water, and mix them to obtain component A; (2) weigh the above-mentioned substances: ordinary Portland cement, low-alkali sulphoaluminate cement, quartz sand, heavy calcium carbonate, early strength agent, retarder, cellulose ether, water reducing agent, and accelerator, and mix them to obtain component B; (3) when used, pour component B into component A and stir for 5-10 minutes to obtain the quick-drying waterproof plugging material.

[0016] In this embodiment 1, the initial setting time of the waterproof plugging material is 70 minutes, the final setting time is 150 minutes, and other performances completely meet the index requirements in the industry standard “Polymer Cement Waterproof Mortar” JC / T984-2005.

[0017] In this embodiment 2, the weight ratio of the powder to the liquid is 1:0.25. The liquid is made of the following raw materials in the following weight percentages: 35% of acrylic emulsion, Iron oxide color paste 0.5%, Defoaming agent 0.3%, Preservative 0.2%, Water 64%; The powder is made of the following raw materials in weight percentage: Ordinary Portland cement 30%, Low-alkali sulpho-aluminate cement 20%, 70-140 mesh quartz sand 38.75%, 400 mesh heavy calcium carbonate 10%, Accelerator 0.1%, Retarder 0.2%, Water reducing agent 0.4%, Early strength agent 0.5%, Cellulose ether 0.05%.

[0018] The preparation method of the two-component quick-drying waterproof plugging material comprises the following steps: (1) Take the above-mentioned amount of substances: acrylic emulsion, color paste, defoaming agent, preservative, and water, and mix them to obtain component A; (2) Take the above-mentioned amount of substances: ordinary Portland cement, low-alkali sulpho-aluminate cement, quartz sand, heavy calcium carbonate, early strength agent, retarder, cellulose ether, water reducing agent, and accelerator, and mix them to obtain component B; (3) When used, pour component B into component A and stir for 5-10 minutes to obtain the quick-drying waterproof plugging material.

[0019] In this example, the initial setting time of the waterproof plugging material is 60 minutes, the final setting time is 120 minutes, and other performances fully meet the index requirements in the industry standard "Polymer Cement Waterproof Mortar" JC / T984-2005.

[0020] In this example, the weight ratio of the powder to the liquid is 1:0.36; The liquid is made of the following raw materials in weight percentage: Acrylic emulsion 40%, Iron oxide color paste 0.5%, Defoaming agent 0.3%, Preservative 0.2%, Water 59%.

[0021] The powder is made of the following raw materials in weight percentage: Ordinary Portland cement 30%, Low-alkali sulpho-aluminate cement 24%, 70-140 mesh quartz sand 38.75%, 400 mesh heavy calcium carbonate 10%, accelerating agent 0.2%, retarding agent 0.25%, water reducing agent 0.4%, early strength agent 0.5%, cellulose ether 0.05%.

[0022] The preparation method of the two-component quick-drying waterproof plugging material comprises the following steps: (1) take the above-mentioned amount of substances: acrylic emulsion, color paste, defoaming agent, preservative, water, and mix them to obtain component A; (2) take the above-mentioned amount of substances: ordinary portland cement, low-alkali sulphoaluminate cement, quartz sand, heavy calcium carbonate, early strength agent, retarding agent, cellulose ether, water reducing agent, and accelerating agent, and mix them to obtain component B; (3) when used, pour component B into component A, and stir for 5-10 minutes to obtain the quick-drying waterproof plugging material.

[0023] The initial setting time of the waterproof plugging material is 90 minutes, and the final setting time is 120 minutes according to the test of this embodiment 3. Other performances completely meet the index requirements in the industry standard "Polymer Cement Waterproof Mortar" JC / T984-2005.

[0024] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent substitutions or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A two-component, quick-drying, waterproof and leak-stopping material, characterized in that, It includes powder and liquid, wherein the weight ratio of the powder to the liquid is 1:0.2-0.36; The powder is made from the following raw materials in parts by weight: 25-45 parts of 42.5 grade ordinary Portland cement 15-25 parts of low-alkali sulfur-aluminum cement 30-50 parts of 70-140 mesh quartz sand 1-20 parts of 400-mesh heavy calcium carbonate Accelerator 0.05-0.3 parts, Retarder 0.05-0.25 parts, Water-reducing agent 0.1-0.4 parts, Early strength agent 0.1-1 part, Cellulose ether 0.1-0.3 parts; The liquid is made from the following raw materials by weight percentage: 25-40 parts of acrylic emulsion 0.1-0.8 parts of iron oxide pigment. Defoamer 0.1-0.4 parts, Preservative 0.05-0.2 parts, Water 58.99-74.75 parts.

2. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The acrylate emulsion is a polyacrylate polymer emulsion obtained by reacting two or more of methyl acrylate, ethyl acrylate, and ethyl acrylate, with a Tg of 6℃.

3. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The quick-setting agent is one or a mixture of two of lithium carbonate and lithium sulfate.

4. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The retarder includes one or a mixture of two of tartaric acid, sodium tartrate, and sodium gluconate.

5. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The early strength agent is one or a mixture of two of calcium formate and calcium nitrate.

6. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The cellulose ether is hydroxymethylpropyl cellulose ether or hydroxyethyl cellulose ether, with a viscosity of 15000 mPas-65000 mPas.

7. The two-component quick-drying waterproof and leak-stopping material according to claim 1, characterized in that, The water-reducing agent is a melamine-based agent or a modified polycarboxylic acid ether.

8. A method for preparing a two-component quick-drying waterproof and leak-stopping material, characterized in that, Includes the following steps: Step 1: Weigh the following liquid components according to the following mass proportions: 25-40 parts acrylic emulsion, 0.1-0.8 parts iron oxide pigment, 0.1-0.4 parts defoamer, 0.05-0.2 parts preservative, and 58.99-74.75 parts water. Stir and mix to obtain component A. Step 2: Weigh the following liquid components according to the following mass percentages: 25-45 parts of 42.5 grade ordinary Portland cement, 15-25 parts of low-alkali sulfur-alumina cement, 30-50 parts of 70-140 mesh quartz sand, 1-20 parts of 400 mesh heavy calcium carbonate, 0.05-0.3 parts of quick-setting agent, 0.05-0.25 parts of retarder, 0.1-0.4 parts of water-reducing agent, 0.1-1 parts of early-strength agent, and 0.1-0.3% of cellulose ether. Step 3: When using, pour component B into component A and stir for 5-10 minutes to obtain the finished quick-drying waterproof and leak-stopping material.