CN115557764B - Waterproof enhanced inorganic plugging material and preparation method thereof - Google Patents
Waterproof enhanced inorganic plugging material and preparation method 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
- C04B28/10—Lime cements or magnesium oxide 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
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- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
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- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
- C04B7/323—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
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- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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- 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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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The application relates to the field of C04B28/06, in particular to a waterproof reinforced inorganic plugging material and a preparation method thereof, wherein 720-850 parts of cement, 3-10 parts of water reducer, 2-8 parts of cellulose ether, 5-15 parts of active master batch for infiltration crystallization, 4-10 parts of quicklime, 3-7 parts of silica fume, 120-200 parts of quartz sand and 3-8 parts of functional auxiliary agent are adopted to prepare the waterproof reinforced inorganic plugging material which has the advantages of quick setting, high initial strength and later strength, good waterproof and permeability resistance and good durability, obviously improves the heat-resistant cracking performance of the inorganic plugging material, has high adhesive force and strong adhesive force, promotes the plugging material to be more tightly attached to an action base surface, prevents the plugged material from falling off and can not effectively plug water, and is particularly suitable for surface-shaped water leakage plugging of areas such as indoor hand washing rooms, kitchen floors and wall surfaces and the like, and has higher practical application value.
Description
Technical Field
The application relates to the field of C04B28/06, in particular to a waterproof reinforced inorganic plugging material and a preparation method thereof.
Background
The problem of water leakage inevitably occurs in the construction engineering, so that a leakage stopping material is needed to realize solidification in a short time and avoid serious water leakage accidents, but the specific conditions of the water leakage accidents in the engineering construction are different, so that the use requirements and standards of the leakage stopping material are different, the common engineering water leakage accidents mainly show point-shaped water leakage, linear water leakage and planar water leakage, and the water leakage speed and the water leakage amount are different. The plugging materials in the current market are mainly divided into two major types of agent-shaped plugging materials and powder-shaped plugging materials, and the polyurethane plugging agent has good plugging effect, is easily influenced by construction temperature and factor , has no obvious single use effect and needs to be matched with the powder-shaped plugging materials.
The powdery plugging material is used for water prevention and plugging in planar water seepage areas, but can not meet water for a long time in areas such as indoor toilets, floors and walls of kitchens, and the like, so that the waterproof performance of the plugging material has higher requirements. Chinese patent CN107555917B discloses a waterproof plugging material and a preparation method thereof, which mainly uses sulphoaluminate cement, high aluminate cement, heavy calcium carbonate and water-washed river sand as main raw materials to provide a plugging material with good waterproof and impervious properties, but ideal plugging effect of a system is realized by adopting a coagulant and a hardening accelerator, but the use of the coagulant and the hardening accelerator influences the later strength and the waterproof performance of the material to a certain extent, the plugging durability is insufficient, and the planar water seepage and plugging of areas such as indoor toilets, floors and walls of kitchens and the like cannot be met.
Therefore, the waterproof enhanced inorganic plugging material is high in coagulation and hardening speed, high in initial strength and later strength, good in waterproof and impervious performance and good in durability, has high adhesive force and strong adhesive force, is particularly suitable for planar water seepage and plugging in areas such as indoor toilets, floors and walls of kitchens and the like, and has higher practical application value.
Disclosure of Invention
The application provides a waterproof reinforced inorganic plugging material, which is prepared from the following raw materials in parts by weight: 720-850 parts of cement, 3-10 parts of water reducer, 2-8 parts of cellulose ether, 5-15 parts of permeable crystallization active master batch, 4-10 parts of quicklime, 3-7 parts of silica fume, 120-200 parts of quartz sand and 3-8 parts of functional auxiliary agents.
As a preferable technical scheme, the cement is rapid hardening aluminate cement; the rapid hardening aluminous cement is purchased from Wuhan Ji chemical industry Co., ltd; the median diameter of the micro silicon powder is 800-1500 meshes; preferably, the median diameter of the silica fume is 1000 meshes, the model is H050, and the silica fume is purchased from An Mi micro-nano new materials (Guangzhou) limited company. The quicklime is numbered A016 and is purchased from Chongqing city Chenyi chemical industry Co. The particle size of the quartz sand is 200-400 meshes, preferably 325 meshes, and the product brand is L020 and is purchased from An Mi micro-nano new materials (Guangzhou) Co.
As a preferable technical scheme, the mass ratio of the cement, the quicklime, the silica fume and the quartz sand is (780-820): (5-8): (4-6): (130-160), the application adopts the rapid hardening aluminate cement to endow the inorganic plugging material with rapid hardening and solidification performance and higher early strength, but because the hardening speed is high, heat cracks can be initiated to influence the later strength of the inorganic plugging material, and the application is unexpectedly discovered through a large amount of experimental researches, when the mass ratio of cement, quicklime, silica fume and quartz sand in a control system is (780-820): (5-8): (4-6): when (130-160), the heat-resistant cracking performance of the inorganic plugging material is obviously improved, the later strength of the inorganic plugging material is improved, the provided inorganic plugging material is enabled to be quickly coagulated and hardened, and meanwhile, the plugging long-acting performance is ensured, probably because the silica fume with the median diameter of 1000 meshes and the quartz sand with the particle diameter of 325 meshes can form a multi-layer protection layer, and the hydration heat of quick hardening aluminum sulfate silicate during use is dispersed by matching with quicklime, so that the problem of heat cracking of the quick hardening aluminum sulfate silicate due to thermal stress in a short time is avoided, and the structural density and strength of the inorganic plugging material are improved, and further the durability is improved.
The adhesive property of the plugging material is an important factor for realizing quick and effective plugging, and as a preferable technical scheme, the cellulose ether is at least one of methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose and sodium carboxymethyl cellulose; preferably, the cellulose ether is a combination of hydroxyethyl cellulose and sodium carboxymethyl cellulose; preferably, the mass ratio of the hydroxyethyl cellulose to the sodium carboxymethyl cellulose is (1-2): (4-6), the dispersibility and stability of the dispersion of the raw materials in the system are improved, and the effective bonding of the rapid hardening aluminous cement, the active master batch for osmotic crystallization, the quicklime, the silica fume and the quartz sand is realized. Preferably, the viscosity of the sodium carboxymethyl cellulose (25 ℃) is 600-1000mPa.s and the viscosity of the hydroxyethyl cellulose (25 ℃) is 5000-6400mPa.s. In the research process, the application discovers that when sodium carboxymethyl cellulose with the viscosity of 600-1000mPa.s is matched with hydroxyethyl cellulose with the viscosity of 5000-6400mPa.s, the cohesive force of the plugging material is effectively improved, the workability, the construction performance and the construction quality of the plugging material are further improved, and the cracking caused by unstable system in the later period of the material is avoided.
The sodium carboxymethyl cellulose has a product number of C91597 and is purchased from Shanghai Jizhui Biochemical technology Co., ltd; the hydroxyethyl cellulose has the product number H810930 and is purchased from Shanghai microphone Biochemical technologies Co.
As a preferable technical scheme, the water reducer is at least one selected from sulfamate water reducer, polycarboxylate water reducer, melamine water reducer, aliphatic high-efficiency water reducer and naphthalene water reducer; preferably, the water reducer is a TS-JS retarder type polycarboxylic acid high-efficiency water reducer, and the TS-JS retarder type polycarboxylic acid high-efficiency water reducer is purchased from Shandong Tong Hesheng building materials Co.
As a preferred technical scheme, the osmotically crystalline active master batch is silicone zirconium; preferably, the mass ratio of the water reducer to the osmotically crystallized active master batch is (4-6): (8-12). When the inorganic plugging material is in actual use, water is required to be added into the inorganic plugging material in a dry powder state, a plurality of uneven bubbles are inevitably formed in the material in the stirring process, certain pores are formed, the existence of the pores greatly reduces the waterproof and impervious performance of the plugging material, the plugging long-term performance is insufficient, the surface-like water seepage plugging of areas such as indoor toilets, floors and walls of kitchens and the like can not be met, and the application discovers that when the permeable crystallization active master batch silicone zirconium is adopted to be matched with TS-JS retarder type polycarboxylic acid high-efficiency water reducing agent for use in the exploring process, particularly, the mass ratio of the water reducing agent to the permeable crystallization active master batch is controlled to be (4-6): and (8-12), cement, quicklime, silica fume and quartz sand in the system have higher dispersibility, so that the aggregation of powder materials is reduced, the impermeability, strength and durability of the inorganic plugging material are obviously improved, and the advantages are probably due to the fact that on one hand, the space structure effect of the material is helpful for the dispersion of the powder materials in the system, on the other hand, the permeable crystals generated by the silicone zirconium can fill holes of a pore structure in the material, the crystalline substances absorb water in the holes of the structure to expand and compensate for shrinkage, the integral compactness of the inorganic plugging material is obviously improved, and the waterproof impermeability and the crack resistance of the inorganic plugging material are further ensured.
As a preferable technical scheme, the functional auxiliary agent at least comprises a dispersing agent, an adhesion promoter, a stabilizer and a retarder; preferably, the mass ratio of the dispersing agent, the adhesion promoter, the stabilizing agent and the retarder is (0.8-1.2): (1-3): (0.5-1): (0.1-0.6);
as a preferable technical scheme, the stabilizer is at least one of calcium stearate, zinc fatty acid and calcium fatty acid; preferably, the stabilizer is zinc stearate, the dispersing agent is sodium hexametaphosphate, the retarder is sodium gluconate, the system stability is improved, foaming is eliminated, the compactness of the plugging material is improved, and the strength and quality of a finished product are ensured.
The zinc stearate is purchased from Shanghai chemical industry Co., ltd; sodium hexametaphosphate and sodium gluconate are purchased from the chemical industry Co., ltd.
As a preferable technical scheme, the adhesion promoter is one or a combination of more of redispersible emulsion powder, hydroxypropyl methyl cellulose and polyvinyl alcohol; preferably, the adhesion promoter is a combination of dispersible latex powder, hydroxypropyl methylcellulose and polyvinyl alcohol; preferably, the mass ratio of the redispersible emulsion powder to the hydroxypropyl methylcellulose to the polyvinyl alcohol is (1-3): (3-5): (2-4); the redispersible emulsion powder is at least one of DA1410, DA1220, DA1100, DA7500, DA6201 and DA 1400; preferably, the model of the redispersible emulsion powder is DA1220; preferably, the viscosity of the hydroxypropyl methylcellulose (20 ℃) is 10 to 20 mpa.s, preferably, the viscosity of the hydroxypropyl methylcellulose (20 ℃) is 10 mpa.s; in the application, the mass ratio is (1-3): (3-5): the dispersible latex powder, the hydroxypropyl methylcellulose and the polyvinyl alcohol of (2-4) are used as adhesion promoters, so that the cohesion and the adhesion of the plugging material are improved, the cracking is reduced, the adhesion between the plugging material and an action base surface is improved, the plugging material and the action base surface are promoted to be more tightly attached, and the plugging material is prevented from falling off and cannot be effectively plugged.
The redispersible emulsion powder, the polyvinyl alcohol and the hydroxypropyl methylcellulose are purchased from Shandong Hao national trade company Limited.
The application further provides a preparation method of the waterproof reinforced inorganic plugging material, which comprises the steps of adding the raw materials into a dispersing kettle according to parts by weight, and stirring for 30-40min at the rotating speed of 800-1000r/min until the raw materials are uniformly dispersed.
Advantageous effects
1. The application provides a waterproof reinforced inorganic plugging material which has the advantages of quick setting and hardening, high initial strength and later strength, good waterproof and impervious performance, good durability, high adhesive force and strong binding force, is particularly suitable for planar water seepage plugging of areas such as indoor toilets, floors and walls of kitchens and the like, and has higher practical application value.
2. By controlling the mass ratio of cement, quicklime, silica fume and quartz sand in the system to be (780-820): (5-8): (4-6): and (130-160), the heat-resistant cracking performance of the inorganic plugging material is obviously improved, the later strength of the inorganic plugging material is improved, and the provided inorganic plugging material is quickly coagulated and hardened and the plugging long-acting property is ensured.
3. By controlling the mass ratio of the ethyl cellulose to the sodium carboxymethyl cellulose to be (1-2): (4-6), the dispersibility and stability of the dispersion of the raw materials in the system are improved, and the effective bonding of the rapid hardening aluminous cement, the active master batch for osmotic crystallization, the quicklime, the silica fume and the quartz sand is realized.
4. The osmotic crystallization active master batch silicone zirconium is adopted to be matched with TS-JS delayed coagulation type polycarboxylic acid high-efficiency water reducer, and the mass ratio of the water reducer to the osmotic crystallization active master batch is controlled to be (4-6): and (8-12), the cement, the quicklime, the silica fume and the quartz sand in the system have higher dispersibility, so that the aggregation of powder materials is reduced, the overall compactness of the inorganic plugging material is obviously improved, and the impermeability, the strength, the cracking resistance and the durability of the inorganic plugging material are obviously improved.
5. By adopting the mass ratio of (1-3): (3-5): the dispersible latex powder, the hydroxypropyl methylcellulose and the polyvinyl alcohol of (2-4) are used as adhesion promoters, so that the cohesion and the adhesion of the plugging material are improved, the cracking is reduced, the adhesion between the plugging material and an action base surface is improved, the plugging material and the action base surface are promoted to be more tightly attached, and the plugging material is prevented from falling off and cannot be effectively plugged.
Detailed Description
Example 1
In one aspect, embodiment 1 of the present application provides a waterproof reinforced inorganic plugging material, which is prepared from the following raw materials in parts by weight: 800 parts of cement, 5 parts of water reducer, 5 parts of cellulose ether, 10 parts of osmotic crystallization active master batch, 6 parts of quicklime, 5 parts of silica fume, 150 parts of quartz sand and 5 parts of functional auxiliary agents.
The cement is quick hardening colored aluminate cement; the rapid hardening aluminous cement is purchased from Wuhan Ji chemical industry Co., ltd; the median diameter of the silica fume is 1000 meshes, the model is H050, and the silica fume is purchased from An Mi micro-nano new materials (Guangzhou) limited company. The quicklime is numbered A016 and is purchased from Chongqing city Chenyi chemical industry Co. The particle size of the quartz sand was 325 mesh, the product brand was L020, and the quartz sand was purchased from An Mi micro-nano new materials (Guangzhou) limited.
The mass ratio of the cement to the quicklime to the silica fume to the quartz sand is 800:6:5:150.
the cellulose ether is a combination of hydroxyethyl cellulose and sodium carboxymethyl cellulose; the mass ratio of the hydroxyethyl cellulose to the sodium carboxymethyl cellulose is 1.5:5, the viscosity of the sodium carboxymethyl cellulose (25 ℃) is 600-1000mPa.s, and the viscosity of the hydroxyethyl cellulose (25 ℃) is 5000-6400mPa.s.
The sodium carboxymethyl cellulose has a product number of C91597 and is purchased from Shanghai Jizhui Biochemical technology Co., ltd; the hydroxyethyl cellulose has the product number H810930 and is purchased from Shanghai microphone Biochemical technologies Co.
The water reducer is a TS-JS retarder type polycarboxylic acid high-efficiency water reducer, and the TS-JS retarder type polycarboxylic acid high-efficiency water reducer is purchased from Shandong Hengsheng building materials Co.
The infiltration crystallization active master batch is silicone zirconium; the mass ratio of the water reducer to the osmotic crystallization active master batch is 5:10.
the functional auxiliary agent comprises a dispersing agent, an adhesion promoter, a stabilizing agent and a retarder; the mass ratio of the dispersing agent to the adhesion promoter to the stabilizing agent to the retarder is 1:2:0.8:0.3;
the stabilizer is zinc stearate, the dispersing agent is sodium hexametaphosphate, and the retarder is sodium gluconate.
The zinc stearate is purchased from Shanghai chemical industry Co., ltd; sodium hexametaphosphate and sodium gluconate are purchased from the chemical industry Co., ltd.
The adhesion promoter is a combination of dispersible latex powder, hydroxypropyl methylcellulose and polyvinyl alcohol; the mass ratio of the redispersible emulsion powder to the hydroxypropyl methylcellulose to the polyvinyl alcohol is 2:4:3, a step of; the model of the redispersible emulsion powder is DA1220; the hydroxypropyl methylcellulose has a viscosity (20 ℃) of 10 ten thousand mPa.s.
The redispersible emulsion powder, the polyvinyl alcohol and the hydroxypropyl methylcellulose are purchased from Shandong Hao national trade company Limited.
The embodiment 1 of the application provides a preparation method of a waterproof reinforced inorganic plugging material, which comprises the steps of adding all raw materials into a dispersing kettle according to parts by weight, and stirring for 30min at a rotating speed of 1000r/min until the raw materials are uniformly dispersed.
Example 2
In one aspect, embodiment 2 of the present application provides a waterproof reinforced inorganic plugging material, which is prepared from the following raw materials in parts by weight: 780 parts of cement, 5 parts of water reducer, 4 parts of cellulose ether, 8 parts of osmotic crystallization active master batch, 5 parts of quicklime, 4 parts of silica fume, 130 parts of quartz sand and 3 parts of functional auxiliary agents.
The cement is quick hardening colored aluminate cement; the rapid hardening aluminous cement is purchased from Wuhan Ji chemical industry Co., ltd; the median diameter of the silica fume is 1000 meshes, the model is H050, and the silica fume is purchased from An Mi micro-nano new materials (Guangzhou) limited company. The quicklime is numbered A016 and is purchased from Chongqing city Chenyi chemical industry Co. The particle size of the quartz sand was 325 mesh, the product brand was L020, and the quartz sand was purchased from An Mi micro-nano new materials (Guangzhou) limited.
The mass ratio of the cement to the quicklime to the silica fume to the quartz sand is 780:5:4:130.
the cellulose ether is a combination of hydroxyethyl cellulose and sodium carboxymethyl cellulose; the mass ratio of the hydroxyethyl cellulose to the sodium carboxymethyl cellulose is 1.5:4, the viscosity of the sodium carboxymethyl cellulose (25 ℃) is 600-1000mPa.s, and the viscosity of the hydroxyethyl cellulose (25 ℃) is 5000-6400mPa.s.
The sodium carboxymethyl cellulose has a product number of C91597 and is purchased from Shanghai Jizhui Biochemical technology Co., ltd; the hydroxyethyl cellulose has the product number H810930 and is purchased from Shanghai microphone Biochemical technologies Co.
The water reducer is a TS-JS retarder type polycarboxylic acid high-efficiency water reducer, and the TS-JS retarder type polycarboxylic acid high-efficiency water reducer is purchased from Shandong Hengsheng building materials Co.
The infiltration crystallization active master batch is silicone zirconium; the mass ratio of the water reducer to the osmotic crystallization active master batch is 5:8.
the functional auxiliary agent comprises a dispersing agent, an adhesion promoter, a stabilizing agent and a retarder; the mass ratio of the dispersing agent to the adhesion promoter to the stabilizing agent to the retarder is 0.8:2:0.5:0.5;
the stabilizer is zinc stearate, the dispersing agent is sodium hexametaphosphate, and the retarder is sodium gluconate.
The zinc stearate is purchased from Shanghai chemical industry Co., ltd; sodium hexametaphosphate and sodium gluconate are purchased from the chemical industry Co., ltd.
The adhesion promoter is a combination of dispersible latex powder, hydroxypropyl methylcellulose and polyvinyl alcohol; the mass ratio of the redispersible emulsion powder to the hydroxypropyl methylcellulose to the polyvinyl alcohol is 1:3:2; the model of the redispersible emulsion powder is DA1220; the hydroxypropyl methylcellulose has a viscosity (20 ℃) of 10 ten thousand mPa.s.
The redispersible emulsion powder, the polyvinyl alcohol and the hydroxypropyl methylcellulose are purchased from Shandong Hao national trade company Limited.
The embodiment 2 of the application provides a preparation method of a waterproof reinforced inorganic plugging material, which comprises the steps of adding the raw materials into a dispersing kettle according to parts by weight, and stirring for 30min at a rotating speed of 1000r/min until the raw materials are uniformly dispersed.
Comparative example 1
The comparative example 1 of the present application provides a waterproof reinforced inorganic plugging material, and the specific embodiment of the present application is the same as example 1, and is characterized in that the mass ratio of cement, quicklime, silica fume, and quartz sand is 850:0.1:0.1:50.
comparative example 2
Comparative example 2 of the present application provides a waterproof enhanced inorganic plugging material, and its specific embodiment is the same as example 1, wherein the osmotically crystalline active masterbatch is Long Shihao L-08 osmotically crystalline active masterbatch, and the mass ratio of the water reducer to the osmotically crystalline active masterbatch is 5:1.
comparative example 3
Comparative example 3 of the present application provides a waterproof enhanced inorganic plugging material, and its specific embodiment is the same as example 1, and the adhesion promoter is dispersible latex powder.
Performance test method
Referring to the national standard GB23440 2009, the inorganic plugging materials prepared in examples and comparative examples were tested for setting time, compressive strength, flexural strength, impermeability, freeze-thawing cycle, heat resistance and adhesive strength, and the results of the performance tests are shown in Table 1.
In the heat resistance and freeze thawing cycle, if no cracking, peeling and falling phenomena exist after the inorganic plugging material is tested, the inorganic plugging material is marked as qualified; if the inorganic plugging material is cracked, peeled and fallen after being tested, the inorganic plugging material is marked as 'unqualified'.
Table 1 results of performance tests of the inorganic plugging materials prepared in examples 1-2 and comparative examples 1-3.
Claims (3)
1. The waterproof reinforced inorganic plugging material is characterized by comprising the following preparation raw materials in parts by weight: 720-850 parts of cement, 3-10 parts of water reducer, 2-8 parts of cellulose ether, 5-15 parts of permeable crystallization active master batch, 4-10 parts of quicklime, 3-7 parts of silica fume, 120-200 parts of quartz sand and 3-8 parts of functional auxiliary agents;
the median diameter of the micro silicon powder is 1000 meshes; the particle size of the quartz sand is 325 meshes; the mass ratio of the cement, the quicklime, the silica fume and the quartz sand is (780-820): (5-8): (4-6): (130-160); the cellulose ether is a combination of sodium carboxymethyl cellulose with 600-1000mPa.s and hydroxyethyl cellulose with a viscosity of 5000-6400 mPa.s; the mass ratio of the hydroxyethyl cellulose to the sodium carboxymethyl cellulose is (1-2): (4-6); the water reducer is a TS-JS retarding polycarboxylic acid high-efficiency water reducer; the infiltration crystallization active master batch is silicone zirconium; the mass ratio of the water reducer to the osmotic crystallization active master batch is (4-6): (8-12); the functional auxiliary agent at least comprises a dispersing agent, an adhesion promoter, a stabilizing agent and a retarder; the adhesion promoter is a combination of dispersible latex powder, hydroxypropyl methylcellulose and polyvinyl alcohol; the mass ratio of the redispersible emulsion powder to the hydroxypropyl methylcellulose to the polyvinyl alcohol is (1-3): (3-5): (2-4); the dispersing agent is sodium hexametaphosphate, and the retarder is sodium gluconate; the stabilizer is at least one of calcium stearate, zinc stearate, fatty acid zinc and fatty acid calcium.
2. The preparation method of the waterproof enhanced inorganic plugging material according to claim 1, wherein the mass ratio of the dispersing agent, the adhesion promoter, the stabilizer and the retarder is (0.8-1.2): (1-3): (0.5-1): (0.1-0.6).
3. A method for preparing a waterproof reinforced inorganic plugging material according to any one of claims 1-2, wherein the waterproof reinforced inorganic plugging material is prepared by adding the raw materials into a dispersing kettle according to parts by weight, and stirring for 30-40min at a rotation speed of 800-1000r/min until the raw materials are uniformly dispersed.
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