CN110467414B - Inorganic salt waterproof plugging reinforcing grouting material and preparation method thereof - Google Patents
Inorganic salt waterproof plugging reinforcing grouting 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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- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
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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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- 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
- C04B2111/23—Acid resistance, e.g. against acid air or rain
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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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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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
- C04B2111/29—Frost-thaw resistance
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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
- C04B2111/50—Flexible or elastic materials
- C04B2111/503—Elastic materials
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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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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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
- C04B2111/72—Repairing or restoring existing buildings or building materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses an inorganic salt waterproof plugging reinforcing grouting material and a preparation method thereof, the grouting material consists of an A material and a B material which are independently packaged, and the A material and the B material are mixed when in use, the A material is a liquid material, and the preparation method comprises the following steps: 45-70 parts of water, 10-40 parts of acrylic acid, 10-30 parts of emulsion and 5-10 parts of triethanolamine; the material B is a powder material and comprises: 50-70 parts of magnesium oxide, 10-30 parts of micro silicon powder, 10-30 parts of acrylic resin, 2-5 parts of methylene bisacrylamide and 2-5 parts of ammonium persulfate. The grouting material has the advantages of high elasticity, high strength, strong water absorption, large water retention, good consolidation force, good durability, wide application range and the like, and is a functional composite grouting material with waterproof and leaking stoppage performances and reinforcement performances.
Description
Technical Field
The invention relates to grouting material and a preparation method thereof, in particular to inorganic salt waterproof plugging reinforcing grouting material and a preparation method thereof. Belongs to the field of construction engineering materials.
Background
The grouting amount commonly used in the market at present mainly comprises: sodium silicates, cements, polyurethanes, acrylates, epoxies, and the like. However, the products of the types have single performance, small application range and poor durability, and the products of polyurethane, acrylate and epoxy resin have large odor, are toxic and harmful and cannot meet the technical requirements of environmental protection.
In addition, in the traditional grouting materials, the organic grouting materials have low strength and poor durability although being elastic, and can only perform crack filling and leaking stoppage without playing a role of reinforcement, so that the grouting materials can only treat the symptoms and cannot treat the root causes, and the long-term waterproof and leaking stoppage effect cannot be achieved. The inorganic grouting material has good strength and durability, but has no problems of elasticity, water absorption, swelling property, and the like, and is a completely rigid material. Such grouting materials cannot resist uneven settlement and vibration of the work, and once there is settlement and vibration, they are also damaged and broken, thus not serving as water-proofing.
Along with the rapid development of economic construction in China, higher requirements are put forward in the aspect of engineering quality construction, and particularly in the aspects of construction and later-stage maintenance of civil building underground engineering, mine tunnels, subway engineering, underground pipe gallery engineering and the like, a functional and composite grouting material capable of preventing and stopping water and reinforcing is urgently needed. Therefore, the development of products in this field becomes a hot spot in the field.
The inorganic salt waterproof plugging reinforcing grouting material is a functional composite grouting material invented based on the technical background. The invention solves the defects of the existing product, achieves the performances of large elasticity, high strength and good durability, has the functions of strong water absorption, large expansion rate, large water fixing quantity and strong consolidation force, can play the roles of 'injecting and plugging firmly and firmly for a long time' and achieves the performances of 'sand cannot flow, stone cannot move and water cannot flow'.
Disclosure of Invention
The invention aims to solve the technical problem of providing a functional composite grouting material which has high elasticity, high strength, strong water absorption, large water retention, good consolidation force, good durability, wide application range and wide application range, and has waterproof and plugging properties and reinforcement properties, and a preparation method thereof.
In order to achieve the purpose, the invention provides an inorganic salt waterproof plugging reinforcing grouting material, which consists of an A material and a B material which are independently packaged, and are mixed when in use, wherein the A material is a liquid material and comprises the following components: 45-70 parts of water, 10-40 parts of acrylic acid, 10-30 parts of emulsion and 5-10 parts of triethanolamine; the material B is a powder material and comprises: 50-70 parts of magnesium oxide, 10-30 parts of micro silicon powder, 10-30 parts of acrylic resin, 2-5 parts of methylene bisacrylamide and 2-5 parts of ammonium persulfate. Wherein, the raw material proportions disclosed by the parts by weight are commonly used in the material A and the material B.
Preferably, the material a comprises: 65 parts of water, 15 parts of acrylic acid, 10 parts of emulsion and 5 parts of triethanolamine; the material B comprises: 65 parts of magnesium oxide, 15 parts of micro silicon powder, 15 parts of acrylic resin, 2 parts of methylene bisacrylamide and 3 parts of ammonium persulfate.
Preferably, the emulsion is selected from one of acrylic emulsion, silicone rubber emulsion, styrene-acrylic emulsion and silicone-acrylic emulsion or the combination thereof; more preferably, the emulsion is an acrylic emulsion.
The invention also provides a preparation method of the grouting material, which comprises the following steps:
1) preparation of Material A
Preparing the raw materials of the material A in parts by weight, adding water into a stirring kettle, adding acrylic acid, stirring for a certain time to be uniform, adding emulsion, stirring for a certain time to be uniform, adding triethanolamine, stirring for a certain time to be uniform, and packaging to obtain the finished product.
2) Preparation of Material B
Preparing the raw materials of the material B in parts by weight, adding magnesium oxide into a mixer to start stirring, adding silica fume, stirring for a certain time to be uniform, adding acrylic resin, stirring for a certain time to be uniform, adding methylene bisacrylamide, stirring for a certain time to be uniform, adding ammonium persulfate, stirring for a certain time to be uniform, and packaging to obtain the material B.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is different from the prior art in that the inorganic salt waterproof plugging reinforcing grouting material has the technical effects of having both waterproof plugging function and reinforcing function.
2. Strong functionality and wide application range:
the product in the prior art has single function and small application range. Although the organic products have certain elasticity, the organic products have low strength and poor durability, and can only be used for water-proof plugging with fine cracks and small water flow and low pressure. Although the inorganic products have certain strength and good durability, the inorganic products have large density and poor fluidity, belong to rigid materials, are easy to generate shrinkage cracks, can only be used for plugging and reinforcing, and cannot play the roles of water resistance and permeability resistance.
The product of the invention has strong functionality and wide application range, and simultaneously has the following characteristics:
high elasticity: the elongation at break reaches more than 200 percent;
the durability is good: acid resistance, alkali resistance and freeze thawing resistance;
the water absorption rate is high: more than 600 percent of the self weight;
strong consolidation force: can bond and solidify water, sand, clay and the like, and the bonding strength reaches more than 2.0 MPa;
the density is small: the density of the resin is 1.1 to 1.3kg/m3；
The fluidity is strong: viscosity less than 10 mPa.s;
the construction performance is good: inorganic materials in the raw materials react with acrylic acid to ensure that the product has the properties similar to those of concrete and strong construction property.
Based on the functional characteristics, the invention can completely meet the requirements of waterproof, leaking stoppage and reinforcement of various projects and can achieve the technical effect of permanent waterproofing.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Example 1
1) Preparation of Material A
Adding 65g of water into a stirring kettle, adding 15g of acrylic acid, stirring for 10-20 minutes at 500-600 r/m until the acrylic acid is uniform, adding 10g of acrylic acid emulsion, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is uniform, adding 5g of triethanolamine, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is completely and uniformly dispersed, obtaining white liquid, and packaging to obtain the white liquid.
2) Preparation of Material B
Adding 65g of magnesium oxide into a mixer, stirring, adding 15g of silica fume, stirring for 20-30 minutes until the mixture is uniform, adding 15g of acrylic resin, stirring for 20-30 minutes until the mixture is uniform, sequentially adding 2g of methylene bisacrylamide and 3g of ammonium persulfate, stirring for 30-60 minutes until the mixture is completely and uniformly dispersed, obtaining mixed powder, and packaging to obtain the high-performance high-temperature-resistant high-temperature-pressure-resistant high-temperature-humidity high-pressure-humidity-resistant high-pressure-humidity-resistant high-humidity-level.
Example 2
1) Preparation of Material A
Adding 45g of water into a stirring kettle, adding 30g of acrylic acid, stirring for 10-20 minutes at 500-600 r/m until the acrylic acid is uniform, adding 20g of acrylic acid emulsion, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is uniform, adding 5g of triethanolamine, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is completely and uniformly dispersed, obtaining white liquid, and packaging to obtain the white liquid.
2) Preparation of Material B
Adding 50g of magnesium oxide into a mixer, stirring, adding 20g of silica fume, stirring for 20-30 minutes until the mixture is uniform, adding 30g of acrylic resin, stirring for 20-30 minutes until the mixture is uniform, sequentially adding 5g of methylene bisacrylamide and 5g of ammonium persulfate, stirring for 30-60 minutes until the mixture is completely and uniformly dispersed, obtaining mixed powder, and packaging to obtain the high-performance high-temperature-resistant high-temperature-pressure-resistant high-temperature-humidity high-pressure-humidity-resistant high-pressure-humidity-resistant high-humidity-level.
Example 3
1) Preparation of Material A
Adding 60g of water into a stirring kettle, adding 20g of acrylic acid, stirring for 10-20 minutes at 500-600 r/m until the acrylic acid is uniform, adding 15g of acrylic acid emulsion, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is uniform, adding 5g of triethanolamine, stirring for 10-20 minutes at 600-800 r/m until the acrylic acid is completely and uniformly dispersed, obtaining white liquid, and packaging to obtain the white liquid.
2) Preparation of Material B
Adding 60g of magnesium oxide into a mixer, stirring, adding 15g of silica fume, stirring for 20-30 minutes until the mixture is uniform, adding 20g of acrylic resin, stirring for 20-30 minutes until the mixture is uniform, sequentially adding 2g of methylene bisacrylamide and 3g of ammonium persulfate, stirring for 30-60 minutes until the mixture is completely dispersed uniformly, obtaining mixed powder, and packaging to obtain the composite material.
Example 4
1) Preparation of Material A
Adding 70g of water into a stirring kettle, adding 15g of acrylic acid, stirring for 10-20 minutes at 500-600 r/m until the mixture is uniform, adding 5g of acrylic acid emulsion, 3g of organic silicon rubber emulsion, 1g of styrene-acrylic emulsion and 1g of silicone-acrylic emulsion, stirring for 10-20 minutes at 600-800 r/m until the mixture is uniform, adding 5g of triethanolamine, stirring for 10-20 minutes at 600-800 r/m until the mixture is completely and uniformly dispersed, obtaining white liquid, and packaging to obtain the white liquid.
2) Preparation of Material B
Adding 70g of magnesium oxide into a mixer, stirring, adding 10g of silica fume, stirring for 20-30 minutes until the mixture is uniform, adding 15g of acrylic resin, stirring for 20-30 minutes until the mixture is uniform, sequentially adding 2g of methylene bisacrylamide and 3g of ammonium persulfate, stirring for 30-60 minutes until the mixture is completely and uniformly dispersed, obtaining mixed powder, and packaging to obtain the high-performance high-temperature-resistant high-temperature-pressure-resistant high-pressure-sensitive adhesive.
Test examples
The inorganic salt waterproof plugging reinforcing grouting material prepared in the embodiment 1-4 is subjected to various performance tests of waterproof plugging reinforcing.
(one) experimental preparation: examples 1 to 4 produced a slip casting, 1 stand of a stretcher, 1 stand of a rheometer, 1 stand of a mortar press, 1 stand of a balance, 6 mold boxes of 150 mm x 10 mm, a plurality of 500ml tapered cylinders, 3 1000ml containers, 1 stand of a freeze-thaw box, 1 stand of a densitometer, 1 stand of a viscometer, 500ml each of a 10% sodium hydroxide solution and a 1% hydrochloric acid solution, 3 test molds of 70 mm x 70 mm, and 2 kg each of grits and gravels.
(II) sample preparation: and mixing the material A and the material B of the grouting material prepared in the embodiment 1, pouring the mixture into 2 mold boxes, and directly using the rest part for performance tests 4-7. And taking out the slurry from the mold box after the slurry in the mold box is solidified, and respectively cutting the slurry into a plurality of strip-shaped test pieces of 50 mm to 20 mm to 10 mm. The same treatment was carried out for the grouting materials of examples 2 to 4.
(III) performance test:
1. elasticity test
The two ends of the test piece to be tested of each example were clamped into a stretching apparatus, stretched to break at a speed of 200 mm/min, the stretched length was measured, and the average value was calculated and converted into the elongation at break, and recorded.
2. Water resistance test
And (3) clamping the test pieces to be tested in each embodiment into a water impermeability instrument, opening a water injection valve, keeping the pressure constant for 30min at 0.2KPa, observing whether each test piece is permeable, and recording.
3. Durability test
The test pieces of each example were respectively immersed in a 10% sodium hydroxide solution and a 1% hydrochloric acid solution for 72 hours, taken out, observed for the presence of chalking or cracking on the surface of each test piece, and recorded.
And (3) putting the test piece to be tested of each embodiment into a freeze-thaw box, performing 15 cycles, taking out, observing whether the surface of each test piece has pulverization or crack phenomena, and recording.
4. Water absorption test
Weighing a proper amount of grouting material to be detected in each embodiment, equally dividing the grouting material into multiple parts, mixing the multiple parts with water in an amount which is 5-8 times the weight of the grouting material, pouring the mixture into a conical measuring cylinder for curing, inclining the measuring cylinder at 45 degrees after 1-5 minutes to observe whether the grouting material flows, and taking the maximum water adding amount of a non-flowing group as the water absorption rate of the grouting material. The test can be carried out by controlling the water adding amount to obtain the most accurate water absorption test result.
5. Strength test
Weighing a proper amount of the to-be-measured mixed grouting material in each embodiment, pouring the mixed grouting material into a test mold of 70 mm to 70 mm for curing, taking out the cured grouting material, putting the cured grouting material into a mortar press, gradually pressurizing until a test piece is damaged, and recording the compressive strength;
weighing a proper amount of the to-be-measured mixed grouting material in each embodiment, pouring the mixed grouting material into a test mold filled with 70 mm and sand, solidifying, taking out the solidified grouting material, putting the solidified grouting material into a mortar press, gradually pressurizing until a test piece is damaged, and recording the consolidation strength.
6. Density test
And weighing a proper amount of the mixed grouting material to be detected in each embodiment, measuring the density by using a densimeter, and recording.
7. Fluidity test
And weighing a proper amount of the mixed grouting material to be detected in each embodiment, measuring the viscosity by using a viscometer, and recording.
(IV) test results:
the test results are shown in table 1.
TABLE 1
| Example 1 | Example 2 | Example 3 | Example 3 | |
| Elongation at break | 240％ | 220％ | 210％ | 210％ |
| Water-proof property | Is impervious to water | Is impervious to water | Is impervious to water | Is impervious to water |
| Acid resistance | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface |
| Alkali resistance | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface |
| Freeze-thaw resistance | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface | No chalking/cracking of surface |
| Water absorption rate | 650％ | 630％ | 630％ | 620％ |
| Compressive strength | 2.4KPa | 2.1KPa | 2.1KPa | 2.0KPa |
| Strength of consolidation | 2.5KPa | 2.2KPa | 2.2KPa | 2.1KPa |
| Density of | 1.1kg/m3 | 1.2kg/m3 | 1.2kg/m3 | 1.3kg/m3 |
| Viscosity of the oil | 8mPa.s | 9mPa.s | 10mPa.s | 10mPa.s |
The inorganic salt waterproof plugging and reinforcing grouting material disclosed by the invention can completely plug fine cracks below 3mm and through gaps above 3mm, can completely repair loose layers and hole honeycombs of a reinforcing structure, can realize waterproof plugging and reinforcing under large water volume and strong pressure, and meets the technical requirements of both waterproof plugging and reinforcing functions.
Claims (5)
1. The utility model provides an inorganic salt waterproof leaking stoppage reinforcing slip casting material which characterized in that comprises A material and B material two parts of independent package, mixes when waiting to use again, A material is the liquid material, includes: 45-70 parts of water, 10-40 parts of acrylic acid, 10-30 parts of emulsion and 5-10 parts of triethanolamine; the material B is a powder material and comprises: 50-70 parts of magnesium oxide, 10-30 parts of micro silicon powder, 10-30 parts of acrylic resin, 2-5 parts of methylene bisacrylamide and 2-5 parts of ammonium persulfate.
2. The slip casting composition of claim 1, wherein the material a comprises: 65 parts of water, 15 parts of acrylic acid, 10 parts of emulsion and 5 parts of triethanolamine; the material B comprises: 65 parts of magnesium oxide, 15 parts of micro silicon powder, 15 parts of acrylic resin, 2 parts of methylene bisacrylamide and 3 parts of ammonium persulfate.
3. The slip casting agent of claim 1, wherein the emulsion is selected from one of acrylic emulsion, silicone rubber emulsion, styrene-acrylic emulsion, silicone-acrylic emulsion, or a combination thereof.
4. The slip casting agent of claim 3, wherein the emulsion is an acrylic emulsion.
5. The method for preparing a slip casting compound according to any one of claims 1 to 4, comprising the steps of:
1) preparation of Material A
Preparing the raw materials of the material A according to the parts by weight of the raw materials according to the claim 1 or 2, adding water into a stirring kettle, adding acrylic acid, stirring uniformly, adding emulsion, stirring uniformly, adding triethanolamine, stirring uniformly, testing the pH value to be 6-9, and packaging to obtain the product;
2) preparation of Material B
Preparing the raw materials for the material B according to the parts by weight of the raw materials in the claim 1 or 2, adding magnesium oxide into a mixer, starting stirring, adding silica fume, stirring uniformly, adding acrylic resin, stirring uniformly, adding methylene bisacrylamide, stirring uniformly, adding ammonium persulfate, stirring uniformly, and packaging to obtain the finished product.
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| CN116768574A (en) * | 2023-06-30 | 2023-09-19 | 北京市政建设集团有限责任公司 | Shield synchronous double-liquid grouting material and preparation method thereof |
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| CN104743996B (en) * | 2015-03-24 | 2016-11-23 | 广州中茂园林建设工程有限公司 | A kind of preparation method of efficient plugging watertight mortar |
| CN106278128A (en) * | 2016-08-18 | 2017-01-04 | 刘志坚 | A kind of multifunctional efficient fast waterproof sealing agent and preparation method |
| CN107235688A (en) * | 2017-06-26 | 2017-10-10 | 浙江德清天和新型建材有限公司 | A kind of GIL pipe galleries behind waterproof grout material and its grouting method |
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2018
- 2018-05-09 CN CN201810438581.5A patent/CN110467414B/en active Active
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