CN114436605B - High-strength anti-freezing grouting material for building and preparation method thereof - Google Patents

High-strength anti-freezing grouting material for building and preparation method thereof Download PDF

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CN114436605B
CN114436605B CN202210195017.1A CN202210195017A CN114436605B CN 114436605 B CN114436605 B CN 114436605B CN 202210195017 A CN202210195017 A CN 202210195017A CN 114436605 B CN114436605 B CN 114436605B
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grouting material
building
raw materials
polyvinylpyrrolidone
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CN114436605A (en
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高振扬
胡小辉
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Beijing Huayang Zhongxin Building Materials Co ltd
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Beijing Huayang Zhongxin Building Materials Co ltd
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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
    • 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
    • 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
    • C04B2111/76—Use at unusual temperatures, e.g. sub-zero
    • 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
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The application relates to the field of grouting materials, and particularly discloses a high-strength anti-freezing grouting material for a building and a preparation method thereof, wherein the high-strength anti-freezing grouting material for the building comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 400-600 parts of sulphoaluminate cement, 500-600 parts of quartz sand, 150-300 parts of diamond micro powder, 30-40 parts of polyvinylpyrrolidone, 50-70 parts of sodium dodecyl sulfate, 10-20 parts of potassium nitrate, 30-50 parts of naphthalene sulfonate formaldehyde condensate and 15-20 parts of water. The fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for the building are respectively 370mm, 49.3MPa, 68.2MPa, 3.49 percent and 351 times, the bleeding property is 0 percent, and the frost resistance of the grouting material is improved.

Description

High-strength anti-freezing grouting material for building and preparation method thereof
Technical Field
The application relates to the field of grouting materials, in particular to a high-strength antifreezing grouting material for buildings and a preparation method thereof.
Background
The grouting material is an engineering material which is injected into internal spaces such as cracks, fissures and gaps of a stratum, a rock or a structure in a liquid state and has cementing and curing capabilities. The grouting material can increase the bearing capacity of the structure, so that the structure achieves the effects of corrosion resistance, leakage resistance and the like, and the overall performance of the structure is improved. The grouting material may be classified into a solid grain grouting material, a chemical grouting material, and a fine mineral grouting material, wherein the solid grain grouting material is classified into clay slurry, cement clay slurry, and cement fly ash slurry, and the cement slurry is currently the most used grouting material, and has better cementation and stability.
In the related technology, the grouting material of the cement paste mainly takes cement as a main raw material, and sand is doped in the cement to reduce the shrinkage deformation of the hardened slurry, increase the binding power and reduce the loss, but the grouting material has poor freezing resistance and is easy to crack, split or delaminate.
Disclosure of Invention
In order to improve the frost resistance of the grouting material for the building, the application provides a high-strength frost-resistant grouting material for the building and a preparation method thereof.
In a first aspect, the application provides a high-strength antifreezing grouting material for buildings, which adopts the following technical scheme:
the high-strength antifreezing grouting material for the building comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 400-600 parts of sulphoaluminate cement, 500-600 parts of quartz sand, 150-300 parts of diamond micro powder, 30-40 parts of polyvinylpyrrolidone, 50-70 parts of sodium dodecyl sulfate, 10-20 parts of potassium nitrate, 30-50 parts of naphthalene sulfonate formaldehyde condensate and 15-20 parts of water.
By adopting the technical scheme, the ordinary portland cement is fast in setting and hardening, the later strength of the grouting material can be improved, the frost resistance is good, the early strength of the sulphoaluminate cement is high, and the strength of the grouting material can be improved by compounding the ordinary portland cement and the sulphoaluminate cement. The addition of the quartz sand can increase the compression resistance and the wear resistance of the grouting material, reduce the water cement ratio, improve the hydration degree of cement, increase the density of the cement, reduce the porosity of the grouting material, prevent water from entering the inside of the grouting material and improve the strength and the freezing resistance.
The surface of the diamond micro powder has no water absorption, and the diamond micro powder is filled in gaps of cement particles and a flocculation structure, can occupy internal moisture space of the grouting material, releases moisture in the flocculation structure and improves the fluidity of slurry; meanwhile, the heat-conducting property is good, the heat-insulating property is certain, the grouting material is prevented from being frozen, and the frost resistance of the grouting material is improved. The polyvinylpyrrolidone can improve the dispersibility of the diamond micro powder in a grouting material system and further improve the frost resistance of the grouting material.
The sodium dodecyl sulfate is added as an air entraining agent, a plurality of tiny independently distributed bubbles can be introduced in the stirring process of the grouting material, and the sodium dodecyl sulfate has the effect of improving the workability of the grouting material so as to improve the frost resistance of the grouting material. Meanwhile, the air entraining agent also has the function of improving the impermeability of the grouting material, can be used in combination with a naphthalene sulfonate formaldehyde condensation compound, and further improves the frost resistance and the mechanical property of the grouting material.
The addition of potassium nitrate can reduce the freezing point of water, so that the cement can be continuously hydrated at low temperature, thereby achieving the anti-freezing effect. The naphthalene sulfonate formaldehyde condensate is added as a water reducing agent, so that the mixing water quantity of the grouting material is reduced, the problems of bleeding or segregation and the like of a mixture are solved, and the frost resistance of the grouting material is further improved.
Preferably, the method comprises the following steps: the high-strength antifreezing grouting material for the building comprises the following raw materials in parts by weight: 240-280 parts of ordinary portland cement, 450-550 parts of sulphoaluminate cement, 540-580 parts of quartz sand, 190-270 parts of diamond micro powder, 34-38 parts of polyvinylpyrrolidone, 55-65 parts of sodium dodecyl sulfate, 14-18 parts of potassium nitrate, 35-45 parts of naphthalene sulfonate formaldehyde condensate and 17-19 parts of water.
Furthermore, the diamond micro powder can be selected from 190 parts, 190-240 parts, 240-270 parts and 270 parts by weight; the polyvinylpyrrolidone can be selected from 34 parts, 34-36 parts, 36-38 parts and 38 parts; the potassium nitrate can be selected from 14 parts, 14-16 parts, 16-18 parts and 18 parts, and 16 parts is more preferable.
Preferably, the method comprises the following steps: the weight ratio of the polyvinylpyrrolidone to the diamond micropowder is 1: (6-8).
By adopting the technical scheme, the weight part ratio of the polyvinylpyrrolidone to the diamond micro powder is adjusted, so that the dispersibility of the diamond micro powder in a grouting material raw material system is improved, and the frost resistance of the grouting material is further improved.
Preferably, the method comprises the following steps: the grouting material also comprises the following raw materials in parts by weight: 80-100 parts of tung oil and 20-30 parts of sodium carboxymethyl cellulose.
By adopting the technical scheme, the tung oil can be added to generate a tung oil film on the surface of each raw material of the grouting material, so that the grouting material has certain waterproof performance, and water is effectively prevented from entering the grouting material, thereby improving the frost resistance of the grouting material. The sodium carboxymethyl cellulose can further improve the adhesive force of the tung oil and improve the anti-freezing function of the tung oil in the grouting material.
Preferably, the method comprises the following steps: the weight ratio of the sodium carboxymethylcellulose to the tung oil is 1: (3-4).
By adopting the technical scheme, the dispersion effect of the tung oil in a grouting material raw material system can be further improved by adjusting the weight part ratio of the sodium carboxymethyl cellulose to the tung oil.
Preferably, the method comprises the following steps: the grouting material also comprises the following raw materials in parts by weight: 10-30 parts of polyurethane foaming sponge particles and 5-15 parts of nonylphenol polyoxyethylene ether.
Through adopting above-mentioned technical scheme, polyurethane foam sponge particle has the expanded characteristic that absorbs water, and its inside moisture loses the back, and intensity is great, can further improve grouting material's frost resistance. The polyoxyethylene nonyl phenyl ether is added as a dispersing agent, so that the dispersion uniformity of the polyurethane foam sponge particles in a grouting material raw material system can be improved.
Preferably, the method comprises the following steps: the weight part ratio of the nonylphenol polyoxyethylene ether to the polyurethane foaming sponge particles is 1: (2-4).
By adopting the technical scheme, the weight part ratio of the nonylphenol polyoxyethylene ether to the polyurethane foam sponge particles is adjusted, so that the polyurethane foam sponge particles are uniformly dispersed into a raw material system, the porosity inside the grouting material is reduced, and the frost resistance of the grouting material is improved.
In a second aspect, the present application provides a method for preparing a grouting material for a high-strength anti-freezing building, which is specifically realized by the following technical scheme:
a preparation method of a high-strength anti-freezing grouting material for a building comprises the following operation steps:
mixing silicate cement, sulphoaluminate cement, quartz sand and diamond micropowder, crushing to 20-25 mu m, adding into water, mixing, and stirring uniformly to obtain a mixture A;
and adding the rest materials into the mixture A and stirring to obtain the grouting material for the building.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) According to the grouting material for the building, the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material are 347mm, 42.3MPa, 62.9MPa, 2.74 percent and 311 times respectively by regulating the type and the mixing amount of the raw materials of the grouting material for the building, the bleeding property is 0 percent, and the freezing resistance and the compressive strength of the grouting material for the building are improved.
(2) According to the grouting material for the building, the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material are 353mm, 43.2MPa, 63.5MPa, 2.77% and 319 times respectively by regulating and controlling the weight part ratio of the polyvinylpyrrolidone to the diamond micropowder in the raw materials of the grouting material for the building, so that the frost resistance of the grouting material for the building is improved.
(3) According to the grouting material for the building, the carboxymethylcellulose sodium and the tung oil are added into the raw materials of the grouting material for the building, and the weight part ratio of the carboxymethylcellulose sodium to the tung oil is adjusted, so that the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for the building are respectively 352mm, 45.9MPa, 65.1MPa, 2.81% and 330 times, and the grouting material for the building has excellent mechanical properties and frost resistance.
(4) According to the grouting material for the building, the nonyl phenol polyoxyethylene ether and the polyurethane foaming sponge particles are added into the raw materials of the grouting material for the building, and the weight part ratio of the nonyl phenol polyoxyethylene ether to the polyurethane foaming sponge particles is adjusted, so that the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for the building are 364mm, 47.5MPa, 66.8MPa, 3.25% and 342 times respectively, and the frost resistance of the grouting material for the building is further improved.
(5) According to the application, the sodium carboxymethylcellulose and the tung oil are added on the basis of adding the nonylphenol polyoxyethylene ether and the polyurethane foaming sponge particles into the raw materials of the grouting material for the building, so that the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for the building are respectively 370mm, 49.3MPa, 68.2MPa, 3.49 percent and 351 times, and the frost resistance and the mechanical property of the grouting material are further improved.
Detailed Description
The present application will be described in further detail with reference to specific examples.
The following raw materials are all commercially available products, and are all sufficient for disclosure of the raw materials in the present application, and should not be construed as limiting the source of the raw materials. The method comprises the following specific steps: the common portland cement is selected from the new material science and technology limited of Xindingli of Hunan, and the compressive strength is 42.5MPa; the sulphoaluminate cement is selected from Zhengzhou Xinmi melt Co., ltd, the compressive strength is 42.5MPa, and the cement grain size is 300 meshes; the particle size of the quartz sand is 80-120 meshes; diamond micropowder with the grain size of 50-500 meshes; the polyvinylpyrrolidone is selected from Sanishui chemical engineering Co., ltd in Jinan province; the naphthalene sulfonate formaldehyde condensate is selected from Jeep New materials Co., ltd, and the content of effective substances is 98%; the tung oil is selected from Jinan Rongzheng chemical industry Co., ltd; the polyurethane foam sponge particles were selected from Kunzhan Zhen electronics, inc.
Example 1
The high strength antifreeze grouting material for construction of example 1 is obtained by the following operation steps:
according to the mixing amount shown in the table 1, mixing portland cement, sulphoaluminate cement, quartz sand and diamond micro powder, crushing to 25 mu m, adding the mixture into water, and uniformly stirring to obtain a mixture A;
and adding the polyvinylpyrrolidone, the sodium dodecyl sulfate, the potassium nitrate and the naphthalenesulfonate formaldehyde condensate into the mixture A, and stirring to obtain the grouting material for the building.
Examples 2 to 5
The high strength antifreeze grouting materials for construction of examples 2 to 5 have the same preparation method and kinds of raw materials as those of example 1 except for different amounts of the raw materials, and are shown in table 1.
TABLE 1 EXAMPLES 1-5 amount of each raw material (unit: kg) of the grouting material for high strength anti-freeze construction
Starting materials Example 1 Example 2 Example 3 Example 4 Example 5
Ordinary portland cement 200 240 260 280 300
Sulphoaluminate cement 400 450 500 550 600
Quartz sand 500 540 560 580 600
Diamond micropowder 150 150 150 150 150
Polyvinylpyrrolidone 30 30 30 30 30
Sodium dodecyl sulfate 50 55 60 65 70
Potassium nitrate 10 10 10 10 10
Naphthalene sulfonic acid formaldehyde condensate 30 35 40 45 50
Water (W) 15 17 18 19 20
Examples 6 to 9
The high strength antifreeze grouting materials for construction of examples 6 to 9 have the same preparation method and kinds of raw materials as those of example 1 except for different mixing amounts of the raw materials, and are described in table 2.
TABLE 2 examples 6-9 amount of each raw material (unit: kg) of the high strength antifreeze grouting material for construction
Figure BDA0003524954060000041
Figure BDA0003524954060000051
Examples 10 to 11
The high strength antifreeze grouting materials for construction of examples 10 to 11 have the same preparation method and kinds of raw materials as those of example 1 except for different amounts of the raw materials, and are described in table 3.
TABLE 3 examples 10-11 amount of each raw material for the high strength antifreeze grouting material for construction (unit: kg)
Raw materials Example 10 Example 11
Ordinary portland cement 260 260
Sulphoaluminate cement 500 500
Quartz sand 560 560
Diamond micropowder 300 300
Polyvinylpyrrolidone 46.2 46.2
Sodium dodecyl sulfate 60 60
Potassium nitrate 16 20
Naphthalene sulfonic acid formaldehyde condensate 40 40
Water (W) 18 18
Example 12
The high strength antifreeze grouting material of example 12 is obtained by the following steps:
mixing the Portland cement, the sulphoaluminate cement, the quartz sand and the diamond micro powder according to the mixing amount shown in the table 4, crushing the mixture to be 25 microns, adding the crushed mixture into water, and uniformly stirring the mixture to obtain a mixture A;
and adding polyvinylpyrrolidone, sodium dodecyl sulfate, potassium nitrate, naphthalene sulfonate formaldehyde condensate, tung oil and sodium carboxymethylcellulose into the mixture A, and stirring to obtain the grouting material for the building.
Examples 13 to 15
The high strength antifreeze grouting material for construction of examples 13 to 15 has the same preparation method and kinds of raw materials as those of example 12 except for the difference in the amount of each raw material, and is described in table 4.
TABLE 4 examples 12-15 amount of each raw material (unit: kg) of the high strength antifreeze grouting material for construction
Figure BDA0003524954060000052
Example 16
The high strength antifreeze grouting material of example 16 is obtained by the following steps:
according to the mixing amount shown in the table 5, mixing portland cement, sulphoaluminate cement, quartz sand, polyurethane foam sponge particles and diamond micro powder, crushing to 25 mu m, adding the mixture into water, mixing and stirring uniformly to obtain a mixture A;
and adding polyvinylpyrrolidone, sodium dodecyl sulfate, potassium nitrate, a naphthalene sulfonate formaldehyde condensate and nonylphenol polyoxyethylene ether into the mixture A, and stirring to obtain the grouting material for the building.
Examples 17 to 19
The high strength antifreeze grouting materials for construction in examples 17 to 19 were prepared by the same method and the same kind of raw materials as those in example 16, except that the amount of each raw material was different, as shown in table 5.
TABLE 5 examples 16-19 amount of each raw material (unit: kg) of the high strength antifreeze grouting material for construction
Starting materials Example 16 Example 17 Example 18 Example 19
Ordinary portland cement 260 260 260 260
Sulphoaluminate cement 500 500 500 500
Quartz sand 560 560 560 560
Diamond micropowder 300 300 300 300
Polyvinylpyrrolidone 46.2 46.2 46.2 46.2
Sodium dodecyl sulfate 60 60 60 60
Potassium nitrate 16 16 16 16
Naphthalene sulfonic acid formaldehyde condensate 40 40 40 40
Water (W) 18 18 18 18
Polyurethane foam sponge particle 10 24 30 15
Polyoxyethylene nonyl phenyl ether 5 8 7.5 15
Example 20
The high-strength antifreeze grouting material for construction in example 20 has the same preparation method and the same types of raw materials as those in example 17, except that 87.5kg of tung oil and 25kg of sodium carboxymethyl cellulose are added, and the remaining amount of the raw materials is the same as that in example 17.
Comparative example 1
The high strength anti-freeze grouting material for construction of comparative example 1 is identical to the preparation method of example 1 except that: the grouting material was not added with diamond fine powder, and the remaining raw materials and the amount of the mixture were the same as in example 1.
Comparative example 2
The high strength antifreeze grouting material for construction of comparative example 2 is prepared in the same manner as in example 1 except that: the grouting material was not added with polyvinylpyrrolidone, and the other raw materials and the blending amount were the same as in example 1.
Comparative example 3
The high strength antifreeze grouting material for construction of comparative example 3 is identical to that of example 1 in preparation method except that: no potassium nitrate was added to the grouting material, and the other raw materials and the amount of the mixture were the same as in example 1.
Performance detection
The following test standards or methods were used to test the performance of each of examples 1-20 and comparative examples 1-3, and the results are detailed in Table 6.
Fluidity, compressive strength, vertical expansion rate: and (3) determining the fluidity, the compressive strengths of 3d and 28d and the vertical expansion rate of 3h of the grouting material for the building by adopting GB/T50448-2008 'technical Specification for application of cement-based grouting materials'.
Freeze-thaw resistance: the freeze-thaw resistance of the grouting material for the building is determined by GB/T50082-2009 test method Standard for Long-term Performance and durability of ordinary concrete.
TABLE 6 Performance test results of different high-strength antifreeze grouting materials for construction
Figure BDA0003524954060000071
The detection results of the table 6 show that the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for the building obtained in the application are respectively 370mm, 49.3MPa, 68.2MPa, 3.49 percent and 351 times, and the grouting material for the building has excellent freezing resistance and strength; meanwhile, the bleeding property is 0 percent, and the impermeability, the caking property and the plasticity are high.
In examples 1 to 5, the fluidity, 3d compressive strength, 28d compressive strength, vertical expansion rate and freeze-thaw resistance of the grouting material for construction in example 3 were 347mm, 42.3MPa, 62.9MPa, 2.74% and 311 times, respectively, which were higher than those in examples 1 to 2 and examples 4 to 5. It is shown that the grouting material for construction in example 3 has proper weight parts of ordinary portland cement, sulphoaluminate cement, quartz sand, sodium dodecyl sulfate and naphthalenesulfonic acid-formaldehyde condensate, and has improved freezing resistance and mechanical properties.
In examples 6 to 9, the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for construction of example 7 were 353mm, 43.2MPa, 63.5MPa, 2.77% and 319 times, respectively, which were higher than those of examples 6 and 8 to 9. The weight ratio of the polyvinylpyrrolidone to the diamond micropowder in the raw materials of the grouting material for the building is 1. May be related to the effect that polyvinylpyrrolidone can improve the dispersibility of the diamond micro powder in the grouting material system and further improve the frost resistance of the grouting material.
It can be found by combining example 7 with examples 10 to 11 that the fluidity, 3d compressive strength, 28d compressive strength, vertical expansion rate and freeze-thaw resistance of the grouting material for construction of example 10 were 355mm, 43.3MPa, 63.6MPa, 2.79% and 323 times, respectively, which were higher than those of examples 7 and 11. It is shown that the grouting material for construction in example 10 has proper weight parts of potassium nitrate in the raw materials, and improves the freezing resistance and mechanical properties of the grouting material for construction.
In examples 12 to 15, the fluidity, 3d compressive strength, 28d compressive strength, vertical expansion rate and freeze-thaw resistance of the grouting material for construction in example 13 were 352mm, 45.9MPa, 65.1MPa, 2.81% and 330 times, respectively, which were higher than those of example 12 and examples 14 to 15. The weight ratio of the sodium carboxymethylcellulose to the tung oil in the raw materials of the grouting material for the building is 1. May be related to the improvement of the adhesion of the tung oil and the frost resistance of the tung oil in the grouting material by the sodium carboxymethyl cellulose.
In examples 16 to 19, the fluidity, the 3d compressive strength, the 28d compressive strength, the vertical expansion rate and the freeze-thaw resistance of the grouting material for construction in example 17 were 364mm, 47.5MPa, 66.8MPa, 3.25% and 342 times, respectively, which were higher than those of example 16 and examples 18 to 19. The weight ratio of the nonylphenol polyoxyethylene ether to the polyurethane foam sponge particles in the raw materials of the grouting material for the building is 1. Probably related to that the polyoxyethylene nonyl phenyl ether enables the polyurethane foam sponge particles to be dispersed in the system more uniformly.
Combining examples 16-19 and example 20, it was found that the fluidity, 3d compressive strength, 28d compressive strength, vertical expansion rate and freeze-thaw resistance of the grouting material for construction of example 20 were respectively 370mm, 49.3MPa, 68.2MPa, 3.49% and 351 times, which were higher than those of examples 16-19. The results show that the freezing resistance and mechanical property of the grouting material can be further improved by adding the sodium carboxymethylcellulose and the tung oil on the basis of adding the nonylphenol polyoxyethylene ether and the polyurethane foamed sponge particles into the building grouting material raw materials.
Combining the performance test data of the grouting materials for buildings in comparative examples 1 to 3 and example 1, it is found that the frost resistance and mechanical properties of the grouting material for buildings are improved to different degrees by adding the diamond micropowder, the polyvinylpyrrolidone and the potassium nitrate into the raw materials of the grouting material for buildings.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.

Claims (6)

1. The high-strength antifreezing grouting material for the building is characterized by comprising the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 400-600 parts of sulphoaluminate cement, 500-600 parts of quartz sand, 150-300 parts of diamond micro powder, 30-40 parts of polyvinylpyrrolidone, 50-70 parts of sodium dodecyl sulfate, 10-20 parts of potassium nitrate, 30-50 parts of naphthalene sulfonate formaldehyde condensate, 15-20 parts of water, 80-100 parts of tung oil and 20-30 parts of sodium carboxymethylcellulose; the weight ratio of the polyvinylpyrrolidone to the diamond micropowder is 1:8.
2. the grouting material for high strength antifreeze building according to claim 1, wherein: the composite material comprises the following raw materials in parts by weight: 240-280 parts of ordinary portland cement, 450-550 parts of sulphoaluminate cement, 540-580 parts of quartz sand, 190-270 parts of diamond micro powder, 34-38 parts of polyvinylpyrrolidone, 55-65 parts of sodium dodecyl sulfate, 14-18 parts of potassium nitrate, 35-45 parts of naphthalene sulfonate formaldehyde condensate, 17-19 parts of water, 80-100 parts of tung oil and 20-30 parts of sodium carboxymethylcellulose; the weight ratio of the polyvinylpyrrolidone to the diamond micropowder is 1:8.
3. the high-strength antifreeze grouting material for buildings according to claim 1, wherein the weight ratio of the sodium carboxymethyl cellulose to the tung oil is 1: (3-4).
4. The grouting material for high strength antifreeze building of claim 1, wherein: the grouting material also comprises the following raw materials in parts by weight: 10-30 parts of polyurethane foaming sponge particles and 5-15 parts of nonylphenol polyoxyethylene ether.
5. The high strength antifreeze grouting material for construction according to claim 4, wherein: the weight ratio of the nonylphenol polyoxyethylene ether to the polyurethane foam sponge particles is 1: (2-4).
6. A method for preparing the grouting material for high strength frost resisting building of any of claims 1 to 5, characterized in that it comprises the following steps:
mixing portland cement, sulphoaluminate cement, quartz sand and diamond micro powder, crushing to 20-25 microns, adding the mixture into water, mixing, and stirring uniformly to obtain a mixture A;
and adding the rest materials into the mixture A and stirring to obtain the grouting material for the building.
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FR2999565B1 (en) * 2012-12-18 2016-02-26 Francais Ciments CURABLE CEMENT MATERIAL BASED ON HYDRAULIC BINDERS FOR IMPLEMENTATION AT LOW TEMPERATURES
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