CN114477931A - Foaming type aluminate cement-based thermal pipeline waterproof plugging material and preparation thereof - Google Patents
Foaming type aluminate cement-based thermal pipeline waterproof plugging material and preparation thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2111/40—Porous or lightweight materials
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention belongs to the technical field of waterproof leaking stoppage repairing materials, and particularly relates to a foaming type aluminate cement-based thermal pipeline waterproof leaking stoppage plugging material and a preparation method thereof. The raw materials used by the waterproof plugging material comprise clay clinker, bauxite clinker, a cementing material, a water reducing agent, calcium peroxide, a foam stabilizer, a retarder and water. The plugging material has good heat resistance and impermeability, is high in condensation speed and convenient and quick to construct, can be widely applied to water prevention and plugging of underground engineering or thermal pipelines, and has good working performance.
Description
Technical Field
The invention belongs to the technical field of waterproof leaking stoppage repairing materials, and particularly relates to a foaming type aluminate cement-based thermal pipeline waterproof leaking stoppage plugging material and a preparation method thereof.
Background
Most areas in the north of China have strong requirements for heating. The heating pipeline is buried underground throughout the year, and due to the high humidity, temperature and microbial corrosion, the heating pipeline is broken frequently, so that normal heating in winter is affected. The long-term leakage of the heating pipeline can cause the settlement of the foundation, and serious people can even cause the collapse of the pavement, thereby causing great hidden dangers to the life and property safety of people.
The existing common waterproof leaking stoppage plugging material can hardly meet the waterproof leaking stoppage requirement of a heat pipeline at the working temperature of 100-350 ℃, and most of the waterproof leaking stoppage materials have slow condensation speed and poor anti-seepage performance and can not meet the rapidness and durability required by repairing the heat pipeline. The waterproof plugging material has the key point that the plugging material can be used for quickly repairing a pipeline when the pipeline is damaged so as not to influence the heating requirement in winter.
Disclosure of Invention
In view of the above, the invention aims to provide a foaming type aluminate cement-based thermal pipeline waterproof plugging material and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
a foaming type aluminate cement-based thermal power pipeline waterproof plugging material comprises the following raw materials in parts by mass: 57-82 parts of clay clinker, 25-45 parts of bauxite clinker, 10-15 parts of cementing material, 5-10 parts of silica fume, 0.5-2.5 parts of water reducing agent, 0.5-1.5 parts of calcium peroxide, 0.3-0.65 part of foam stabilizer, 0.2-0.4 part of retarder and 20-35 parts of water.
The cementing material is aluminate cement and silica fume, and the proportion of the aluminate cement to the silica fume is 10-15: 5-10, and the strength grade of the cement is 525# or above.
Further preferably, the particle size distribution in the clay clinker is: 10-20 parts of 8-5mm, 18-24 parts of 5-3mm, 14-18 parts of 3-1 mm and 15-20 parts of less than 1 mm.
The water reducing agent is preferably a polycarboxylic acid-based water reducing agent or a naphthalene-based water reducing agent, and the solid content of the water reducing agent is not lower than 23%.
More preferably, the foam stabilizer is sodium stearate, fatty acid methyl alcohol amide or polyvinyl alcohol.
Preferably, the retarder is sodium tripolyphosphate or sodium tartrate.
The silicon content in the silica fume is not less than 85 percent, and the ignition loss is less than 4 percent.
Further specifically, SiO in the clay clinker247-56% of Al2O3The proportion is 37-42%; al in bauxite chamotte2O3The ratio is more than 60 percent.
The preparation method of the waterproof plugging material comprises the following steps: taking the raw materials according to a certain proportion, mixing the clay clinker, the bauxite clinker, the cementing material, the silica fume and the calcium peroxide, dry-mixing for more than 2min by using a stirrer, then sequentially adding water, a water reducing agent, a foam stabilizer and a retarder, and uniformly mixing.
Compared with the prior art, the invention has the beneficial technical effects that:
in the invention, calcium peroxide is selectively added and reacts with water to foam to generate oxygen and 2CaO2+2H2O=2Ca (OH)2+ O2 ↓, calcium hydroxide produced further reacts with silica in the clinker of clay and bauxite to produce calcium-silicon hydrogel, Ca (OH)2+SiO2=CaSiO3·H2And O, the further generated calcium-silicon hydrogel further fills the damaged gaps, and the calcium-silicon hydrogel can increase the strength after hardening. The foam stabilizer can ensure that the bubbles emitted by the calcium peroxide cannot be broken too fast, and the stability of the bubbles is enhanced.
The aluminate cement can release heat in the hydration process, ensures that the hydration performance of the aluminate cement is still good below 10 ℃, and can meet the requirement of common winter construction. In general, when the ambient temperature is 100-350 ℃, the free water which is not consumed by hydration reaction in the cement matrix is evaporated, and bubbles and cracks are left in the cement matrix along with the evaporation of the water, so that the integral structure of the material is unstable. However, in the invention, a certain amount of water is consumed for hydration of the aluminate cement, meanwhile, a part of water is consumed by the foaming reaction of the added calcium peroxide, and the excess water is basically consumed, so that the water loss caused by the temperature rise is less, the increase of the porosity in the cement matrix is correspondingly less, and the aluminate cement has good mechanical properties at the temperature of 100-350 ℃.
The monocalcium aluminate in the aluminate cement has higher hydraulicity and high early hydration speed, and Ca (OH) is not released in the hydration process of the aluminate cement2Can resist sulfate corrosion, so that the material has better environmental corrosion resistance. In the presence environment of the clay clinker and the bauxite clinker, the aluminate cement is promoted to generate more ettringite and hydrated alumina gel in the hydration process, so that the structure of the cement stone is more compact, and the adhesion between the plugging material and the heat distribution pipeline is enhanced. The silica fume replaces part of aluminate cement, on one hand, the use amount of the aluminate cement can be reduced, on the other hand, the silica fume has large specific surface area and high reaction activity, and can quickly generate hydrated calcium silicate in the early stage, so that the early strength of the whole structure can be greatly enhanced, the defect that the pure aluminate cement is used as a cementing material is overcome, and the early strength can be adjusted by controlling the proportion between the silica fume and the aluminate cement. The silica fume can be subjected to secondary hydration in the silica fume, so that the sample can be effectively improvedThe product has high compressive strength, high binding strength between cement stone and aggregate, and improved performance in the interface transition area between cement stone and aggregate. The setting time of the aluminate cement can be controlled by adding a retarder.
The invention only selects sodium tripolyphosphate or sodium tartrate as a retarder, the sodium tripolyphosphate generates a layer of calcium phosphate on the surface of cement particles, and the calcium phosphate forms a wrapping state on the cement particles, thereby reducing the contact between the cement particles and water to a certain extent, achieving the purpose of retarding coagulation, and flexibly adjusting according to construction requirements. The sodium tartrate can generate a layer of complex with a structure similar to ettringite (Aft) on the surface of the cement, so that the contact area of cement particles and water is reduced, and the cement particles are prevented from reacting with the water too fast.
The clay clinker is graded according to different particle sizes, so that the plugging material can reach a state with proper tightness, the defects in the cement material are reduced, the impermeability of the material is improved, the good impermeability can reduce harmful ions in the external environment from entering the material through the water seepage effect, and the material is prevented from being damaged.
1. The plugging material has good heat resistance and impermeability, is high in condensation speed and convenient and quick to construct, can be widely applied to water prevention and plugging of underground engineering or thermal pipelines, and has good working performance.
2. The early strength of the plugging material can be adjusted by the proportion between the silica fume and the aluminate cement; the condensation speed is also adjustable, the condensation time can be adjusted according to the specific requirements of construction, and the plugging of a water leakage point is completed.
3. The plugging material has good anti-permeability and environmental erosion resistance, can maintain the working performance for a long time in the working environment of 100-300 ℃ and the humidity of more than 90 percent, and can maintain the waterproof, leaking stoppage and plugging effects for a long time in severe environment.
4. The plugging material also has good low temperature resistance and negative temperature resistance, and can meet the requirement of normal construction in winter.
5. The preparation process is simple, and the construction is convenient and quick.
Drawings
FIG. 1 is a graph of coagulation time data for examples 1-12;
FIG. 2 is a graph of the 3 day compressive strength data for examples 1-12;
FIG. 3 is a graph of the adhesion data for examples 1-12.
Detailed Description
The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way.
In the following examples, the strength grade of the aluminate cement is 525# or more; the solid content of the water reducing agent is not lower than 23 percent; the silicon content in the silica fume is not less than 85 percent, and the ignition loss is less than 4 percent; SiO in clay clinker247-56% of Al2O3The proportion is 37-42%; al in bauxite chamotte2O3The ratio is more than 60 percent.
Example 1:
a foaming type aluminate cement-based thermal power pipeline waterproof plugging material comprises the following raw materials: 8-5mm 200g of clay clinker, 5-3mm 360g of clay clinker, 3-1 mm 280g of clay clinker, 300g of clay clinker below 1 mm, 500g of bauxite clinker, 200g of aluminate cement, 100g of silica fume, 10g of polycarboxylic acid-based water reducer, 10g of calcium peroxide, 6g of sodium stearate (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 400g of water.
Example 2:
a foaming type aluminate cement-based thermal power pipeline waterproof plugging material comprises the following raw materials: 8-5mm 300g of clay clinker, 5-3mm 360g of clay clinker, 3-1 mm 270g of clay clinker, 300g below 1 mm of clay clinker, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 3:
a foaming type aluminate cement-based thermal power pipeline waterproof plugging material comprises the following raw materials: 8-5mm320g of clay clinker, 5-3mm 400g of clay clinker, 3-1 mm320g of clay clinker, 380g of clay clinker below 1 mm, 640g of bauxite clinker, 240g of aluminate cement, 160g of silica fume, 30g of polycarboxylic acid-based water reducer, 24g of calcium peroxide, 10g of polyvinyl alcohol (foam stabilizer), 6g of sodium tartrate (retarder) and 500g of water.
Example 4:
a foaming type aluminate cement-based thermal power pipeline waterproof plugging material comprises the following raw materials: 240g of clay clinker 8-5mm, 380g g of clay clinker 5-3mm, 300g of clay clinker 3-1 mm, 320g of clay clinker below 1 mm, 800g of bauxite clinker, 240g of aluminate cement, 180g of silica fume, 18g of naphthalene water reducer, 24g of calcium peroxide, 8g of sodium stearate (foam stabilizer), 6g of sodium tartrate (retarder) and 600g of water.
The preparation method of the waterproof plugging material of the embodiment 1 to 4 comprises the following steps: the preparation method comprises the steps of taking raw materials according to a proportion, mixing clay clinker, bauxite clinker, aluminate cement, silica fume and calcium peroxide, dry-mixing for more than 2min by using a stirrer, then sequentially adding water, a water reducing agent, a foam stabilizer and a retarder, and uniformly mixing.
Example 5 (aluminum powder foaming)
A waterproof leaking stoppage plugging material comprises the following raw materials: 8-5mm 300g of clay clinker, 5-3mm 360g of clay clinker, 3-1 mm 270g of clay clinker, 300g below 1 mm of clay clinker, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of aluminum powder, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 6 (Hydrogen peroxide foaming)
A waterproof leaking stoppage plugging material comprises the following raw materials: 8-5mm 300g of clay clinker, 5-3mm 360g of clay clinker, 3-1 mm 270g of clay clinker, 300g below 1 mm of clay clinker, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of hydrogen peroxide, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 7 (without addition of foam stabilizer)
A waterproof leaking stoppage plugging material comprises the following raw materials: 300g of clay clinker 8-5mm, 360g of clay clinker 5-3mm, 270g of clay clinker 3-1 mm, 300g of clay clinker below 1 mm, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 8 (without silica fume)
A waterproof leaking stoppage plugging material comprises the following raw materials: 8-5mm 300g of clay clinker, 5-3mm 360g of clay clinker, 3-1 mm 270g of clay clinker, 300g below 1 mm of clay clinker, 675g of bauxite clinker, 375g of aluminate cement, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 9 (without Clay Clinker 8-5 mm)
A waterproof leaking stoppage plugging material comprises the following raw materials: 460g of clay clinker 5-3mm, 370g of clay clinker 3-1 mm, 400g of clay clinker below 1 mm, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methyl alcohol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 10 (without Clay clinker 5-3 mm)
A waterproof leaking stoppage plugging material comprises the following raw materials: 8-5mm 420g of clay clinker, 3-1 mm 390g of clay clinker, 420g of clay clinker below 1 mm, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methyl alcohol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 11 (without Clay Clinker 3-1 mm)
A waterproof leaking stoppage plugging material comprises the following raw materials: 390g of clay clinker with the thickness of 8-5mm, 450g of clay clinker with the thickness of 5-3mm, 390g of clay clinker with the thickness less than 1 mm, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Example 12 (without Clay clinker, 1 mm or less)
A waterproof leaking stoppage plugging material comprises the following raw materials: 8-5mm 400g of clay clinker, 5-3mm 460g of clay clinker, 3-1 mm370g of clay clinker, 675g of bauxite clinker, 225g of aluminate cement, 150g of silica fume, 37.5g of naphthalene water reducer, 22.5g of calcium peroxide, 10g of fatty acid methanol amide (foam stabilizer), 6g of sodium tripolyphosphate (retarder) and 525g of water.
Effect test
The performance of the leak-proof plugging materials prepared in examples 1 to 12 was tested, and the test results are shown in the following table:
the data analysis graphs are shown in fig. 1-3, and it is seen from the above that, when aluminum powder is used as the foaming agent, the aluminum powder is liable to air reaction and to be degraded in performance during storage, and the aluminum powder is liable to explosion in the presence of open fire and is inferior in safety performance. When the hydrogen peroxide is used as the foaming agent, the requirement on the foaming temperature is high, the foaming rate is relatively slow at room temperature, and the foaming rate is too fast at the temperature of over 45 ℃, so that small bubbles with uniform size are not favorably formed. The uniformity of the bubbles is poor. When the foam stabilizer is lacked, the foam can be dissipated too fast in the foaming process, so that the foaming agent cannot well play a foaming effect, and the density of the concrete test block is increased in macroscopic expression. The particle composition and the particle size distribution of the clay clinker in the invention can generate great influence on the hydration reaction of a system, thereby influencing the overall performance of the cement-based material, and if the clay clinker with a certain particle size is too much or too little, the material waste and the overall mechanical performance of the cement-based material can be caused.
The waterproof plugging materials of the embodiments 1 to 4 are respectively filled and plugged into different pipelines, the temperature environment with similar heat power is simulated, after the filling, the waiting time is 15 to 20 minutes, the water leakage pipeline is injected with water and pressurized, then the state is maintained for 24 hours, and the observation is carried out, so that no water seeps out of the filled and plugged place.
The detection method adopted in the invention is as follows:
and (3) detection of impermeability: as corresponding standards for the impermeability of concrete are not established in China at present, the impermeability can be detected in various ways. In the experiment, the impermeability of the concrete is detected by a concrete impermeability instrument detection method. Mainly comprises three steps: firstly, the surface of a sample to be tested is polished smooth by a file, secondly, calibration is carried out before testing, and finally, the impermeability of concrete is tested by using an impermeability tester.
And (3) testing thermal shock resistance: the thermal shock resistance test method refers to GB/T3298-2008 'test method for thermal shock resistance of domestic ceramic ware', and the specific method is adjusted as follows: after the concrete is maintained to 28d age under standard conditions, a concrete test block with the size of 100mm multiplied by 100mm is subjected to 10 times of circulation by selecting two temperature test standards of temperature (20 ℃ plus or minus 5 ℃) and temperature 350 ℃, and the strength and quality change conditions are immediately tested and recorded after circulation. Cooling treatment: the test piece for water cooling test should be immersed in a constant temperature water tank with the temperature of (20 +/-5) DEG C, a certain distance should be kept between the test blocks, and the test blocks are completely immersed in water; the test piece for the air cooling test needs to be placed in a constant temperature chamber (20 +/-5 ℃) in the same state; heating treatment: cooling the test block at normal temperature for 15min, transferring into an oven at 350 deg.C, and maintaining the temperature for 120 min; moving back to the normal temperature environment again, and completing one-time circulation; the operation is cycled for not less than 10 times, and the change of intensity and quality is tested and recorded.
Testing of adhesion to thermal conduits: the product is uniformly coated on a flat plate which is made of the same material as the outer surface of the heat distribution pipeline, the flat plate is placed for 1 day under standard conditions, then a drawing joint for testing is adhered to the two surfaces by using a proper high-strength adhesive, a tensile testing machine is used for testing, the tensile speed is (5 +/-1) mm/min, and test data are recorded.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The foaming type aluminate cement-based thermal power pipeline waterproof plugging material is characterized by comprising the following raw materials in parts by mass: 57-82 parts of clay clinker, 25-45 parts of bauxite clinker, 15-25 parts of cementing material, 0.5-2.5 parts of water reducing agent, 0.5-1.5 parts of calcium peroxide, 0.3-0.65 part of foam stabilizer, 0.2-0.4 part of retarder and 20-35 parts of water.
2. The waterproof plugging material of claim 1, wherein the cementing material is aluminate cement and silica fume, and the ratio of the aluminate cement to the silica fume is 10-15: 5-10.
3. The waterproof plugging material as claimed in claim 1, wherein the particle size distribution in the clay clinker is as follows: 10-20 parts of 8-5mm, 18-24 parts of 5-3mm, 14-18 parts of 3-1 mm and 15-20 parts of less than 1 mm.
4. The waterproof plugging material of claim 1, wherein the water reducing agent is a polycarboxylic acid-based water reducing agent or a naphthalene-based water reducing agent, and the solid content of the water reducing agent is not less than 23%.
5. The waterproof plugging material as claimed in claim 1, wherein the foam stabilizer is sodium stearate, fatty acid methanol amide or polyvinyl alcohol.
6. The waterproof leaking stoppage plugging material of claim 1, wherein the retarder is sodium tripolyphosphate or sodium tartrate.
7. The waterproof leaking stoppage plugging material as set forth in claim 1, wherein the silica fume contains silica in an amount of not less than 85% and has a loss on ignition of less than 4%.
8. The waterproof leak-stopping plugging material as claimed in claim 1, wherein SiO in the clay clinker247-56% of Al2O3The proportion is 37-42%; al in bauxite chamotte2O3The ratio is more than 60 percent.
9. The preparation method of the waterproof leaking stoppage plugging material as recited in claim 1, characterized by comprising the following steps: taking the raw materials according to a certain proportion, mixing the clay clinker, the bauxite clinker, the cementing material and the calcium peroxide, then sequentially adding the water, the water reducing agent, the foam stabilizer and the retarder, and uniformly mixing.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
| CN104529344A (en) * | 2014-12-23 | 2015-04-22 | 兰溪市三力建筑材料有限公司 | Water and leak proofing agent and application method |
| CN104591660A (en) * | 2014-12-26 | 2015-05-06 | 江苏苏博特新材料股份有限公司 | Modified inorganic waterproof plugging material |
| CN110590279A (en) * | 2019-09-18 | 2019-12-20 | 重庆兴渝涂料股份有限公司 | Kitchen and bathroom backfill treasure and preparation method thereof |
| US20200270507A1 (en) * | 2018-07-13 | 2020-08-27 | Halliburton Energy Services, Inc. | Foamed Treatment Fluids for Lost Circulation Control |
| CN112159249A (en) * | 2020-09-16 | 2021-01-01 | 漆仙姑新材料技术重庆有限公司 | External wall thermal insulation material and preparation method thereof |
| CN112341133A (en) * | 2020-11-09 | 2021-02-09 | 苏州佳固士新材料科技有限公司 | Novel inorganic waterproof plugging material and application thereof |
-
2022
- 2022-03-07 CN CN202210216297.XA patent/CN114477931B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
| CN104529344A (en) * | 2014-12-23 | 2015-04-22 | 兰溪市三力建筑材料有限公司 | Water and leak proofing agent and application method |
| CN104591660A (en) * | 2014-12-26 | 2015-05-06 | 江苏苏博特新材料股份有限公司 | Modified inorganic waterproof plugging material |
| US20200270507A1 (en) * | 2018-07-13 | 2020-08-27 | Halliburton Energy Services, Inc. | Foamed Treatment Fluids for Lost Circulation Control |
| CN110590279A (en) * | 2019-09-18 | 2019-12-20 | 重庆兴渝涂料股份有限公司 | Kitchen and bathroom backfill treasure and preparation method thereof |
| CN112159249A (en) * | 2020-09-16 | 2021-01-01 | 漆仙姑新材料技术重庆有限公司 | External wall thermal insulation material and preparation method thereof |
| CN112341133A (en) * | 2020-11-09 | 2021-02-09 | 苏州佳固士新材料科技有限公司 | Novel inorganic waterproof plugging material and application thereof |
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