CN112390580A - Thin-layer mortar and application thereof - Google Patents
Thin-layer mortar and application thereof Download PDFInfo
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- CN112390580A CN112390580A CN202011317015.2A CN202011317015A CN112390580A CN 112390580 A CN112390580 A CN 112390580A CN 202011317015 A CN202011317015 A CN 202011317015A CN 112390580 A CN112390580 A CN 112390580A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 40
- 229940070527 tourmaline Drugs 0.000 claims abstract description 81
- 229910052613 tourmaline Inorganic materials 0.000 claims abstract description 81
- 239000011032 tourmaline Substances 0.000 claims abstract description 81
- 239000000843 powder Substances 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 235000019738 Limestone Nutrition 0.000 claims abstract description 14
- 235000010489 acacia gum Nutrition 0.000 claims abstract description 14
- 239000001785 acacia senegal l. willd gum Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000006028 limestone Substances 0.000 claims abstract description 14
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 38
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 36
- 239000002071 nanotube Substances 0.000 claims description 36
- 229910052719 titanium Inorganic materials 0.000 claims description 36
- 239000010936 titanium Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000004113 Sepiolite Substances 0.000 claims description 19
- 235000019355 sepiolite Nutrition 0.000 claims description 19
- 229910052624 sepiolite Inorganic materials 0.000 claims description 19
- 239000004408 titanium dioxide Substances 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 32
- 239000011248 coating agent Substances 0.000 abstract description 19
- 238000000576 coating method Methods 0.000 abstract description 19
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 12
- 238000002604 ultrasonography Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 235000019441 ethanol Nutrition 0.000 description 6
- 230000003068 static effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
The invention relates to the field of building construction, and provides thin-layer mortar and application thereof, which are used for improving the performance of the thin-layer mortar. The invention provides thin-layer mortar, which comprises: 300-400 parts by mass of cement, 500-600 parts by mass of machine-made sand, 100-200 parts by mass of water, 100-150 parts by mass of limestone powder, 10-20 parts by mass of a polycarboxylic acid water reducing agent, 10-15 parts by mass of polyacrylamide, 50-80 parts by mass of diatomite, 500-800 parts by mass of tourmaline and 6-10 parts by mass of Arabic gum. The release amount of negative ions is improved, and meanwhile, part of water adsorbed by the coating can be consumed, so that the service life of the coating is prolonged.
Description
Technical Field
The invention relates to the field of building construction, in particular to thin-layer mortar and application thereof.
Background
The thin-layer mortar masonry method refers to a construction method for building an autoclaved aerated concrete block wall by adopting autoclaved aerated concrete blocks to bond mortar.
The existing thin-layer mortar has no negative ion release capacity and can not meet the current market demand. Meanwhile, the thin-layer mortar has longer service life so as to reduce maintenance cost, and the service life of the thin-layer mortar is possibly reduced by adding other functions.
Disclosure of Invention
The invention solves the technical problem of improving the performance of the thin-layer mortar and provides the thin-layer mortar.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a thin layer mortar comprising: 300-400 parts by mass of cement, 500-600 parts by mass of machine-made sand, 100-200 parts by mass of water, 100-150 parts by mass of limestone powder, 10-20 parts by mass of a polycarboxylic acid water reducing agent, 10-15 parts by mass of polyacrylamide, 50-80 parts by mass of diatomite, 500-800 parts by mass of tourmaline and 6-10 parts by mass of Arabic gum.
The cement and the diatomite can absorb certain moisture, so that the humidity of a coating formed by the mortar is improved, and the tourmaline can release more negative ions in an environment with higher humidity.
The release amount of negative ions is improved, and meanwhile, part of water adsorbed by the coating can be consumed, so that the service life of the coating is prolonged.
Preferably, the method comprises the following steps: 350-400 parts of cement, 550-600 parts of machine-made sand, 150-200 parts of water, 120-150 parts of limestone powder, 15-20 parts of a polycarboxylic acid water reducing agent, 12-15 parts of polyacrylamide, 60-80 parts of diatomite, 600-800 parts of tourmaline and 8-10 parts of Arabic gum.
Preferably, the method comprises the following steps: 350 parts of cement, 550 parts of machine-made sand, 150 parts of water, 120 parts of limestone powder, 15 parts of a polycarboxylic acid water reducing agent, 12 parts of polyacrylamide, 60 parts of kieselguhr, 600 parts of tourmaline and 8 parts of Arabic gum.
Preferably, the tourmaline is modified tourmaline.
Preferably, the preparation method of the modified tourmaline comprises the following steps:
taking 120-150 parts by mass of sepiolite powder, 20-50 parts by mass of titanium nanotubes, 500-600 parts by mass of tourmaline powder and 1-3 parts by mass of titanium dioxide;
dispersing titanium dioxide into 10-30 parts by mass of ethanol to obtain a modified solution;
adding sepiolite, titanium nanotubes and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 50-60 ℃ for 24h, and roasting at 250-300 ℃ for 6-10 h to obtain the modified tourmaline powder. The modified tourmaline, especially the tourmaline modified by the titanium nano tube can effectively improve the higher negative ion release performance of the tourmaline in the coating with higher humidity.
Preferably, 140-150 parts by mass of sepiolite powder, 40-50 parts by mass of titanium nanotubes, 560-600 parts by mass of tourmaline powder and 2-3 parts by mass of titanium dioxide are taken.
Preferably, 140 parts by mass of sepiolite powder, 40 parts by mass of titanium nanotubes, 560 parts by mass of tourmaline powder and 2 parts by mass of titanium dioxide are taken.
Preferably, the preparation method of the titanium nanotube comprises the following steps:
taking 20-50 parts by mass of nano titanium dioxide and 2000-5000 parts by mass of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 100-110 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 3-5 Mpa, simultaneously stirring and ultrasonically treating the dispersion liquid, wherein the stirring rotation speed is 500-700 r/min, the ultrasonic power is 100-150 w, the ultrasonic frequency is 40-60 kHz, and reacting for 5-10 min to obtain a reaction liquid;
and drying the reaction solution at 80-90 ℃, and crushing to obtain the titanium nanotube. The titanium nano tube prepared by the hydrothermal reaction can further improve the negative ion release of the tourmaline in a high-humidity environment.
Preferably, 40 parts by mass of nano titanium dioxide and 4000 parts by mass of 5mol/L sodium hydroxide solution.
The application of the thin-layer mortar is to use the thin-layer mortar as a raw material for a thin-layer mortar masonry method.
Compared with the prior art, the invention has the beneficial effects that: the release amount of negative ions is improved, and meanwhile, part of water adsorbed by the coating can be consumed, so that the service life of the coating is prolonged.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to be limiting thereof.
Example 1
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 60g of diatomite, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 140g of sepiolite powder, 40g of titanium nanotubes, 560g of tourmaline powder and 2g of titanium dioxide;
dispersing titanium dioxide into 20g of ethanol to obtain a modified solution;
adding sepiolite, titanium nanotubes and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 55 ℃ for 24h, and roasting at 270 ℃ for 8h to obtain the modified tourmaline powder. The preparation method of the titanium nanotube comprises the following steps:
taking 40g of nano titanium dioxide and 4000g of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 105 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 4Mpa, simultaneously stirring and carrying out ultrasound on the dispersion liquid, wherein the stirring rotation speed is 600r/min, the ultrasound power is 120w, the ultrasound frequency is 50kHz, and the reaction is carried out for 8min to obtain a reaction liquid;
and drying the reaction solution at 81 ℃, and crushing to obtain the titanium nanotube.
The cement and the diatomite can absorb certain moisture, so that the humidity of a coating formed by the mortar is improved, and the tourmaline can release more negative ions in an environment with higher humidity.
The release amount of negative ions is improved, and meanwhile, part of water adsorbed by the coating can be consumed, so that the service life of the coating is prolonged. The modified tourmaline, especially the tourmaline modified by the titanium nano tube can effectively improve the higher negative ion release performance of the tourmaline in the coating with higher humidity. The titanium nano tube prepared by the hydrothermal reaction can further improve the negative ion release of the tourmaline in a high-humidity environment.
Example 2
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 60g of diatomite, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 140g of sepiolite powder, 40g of titanium nanotubes, 560g of tourmaline powder and 2g of titanium dioxide;
dispersing titanium dioxide into 20g of ethanol to obtain a modified solution;
adding sepiolite, titanium nanotubes and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 55 ℃ for 24h, and roasting at 270 ℃ for 8h to obtain the modified tourmaline powder.
Example 3
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 60g of diatomite, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 40g of titanium nanotube, 560g of tourmaline powder and 2g of titanium dioxide;
dispersing titanium dioxide into 20g of ethanol to obtain a modified solution;
adding the titanium nanotube and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain particles with the particle size of 0.5-1 mm, drying at 55 ℃ for 24 hours, and roasting at 270 ℃ for 8 hours to obtain the modified tourmaline powder. The preparation method of the titanium nanotube comprises the following steps:
taking 40g of nano titanium dioxide and 4000g of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 105 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 4Mpa, simultaneously stirring and carrying out ultrasound on the dispersion liquid, wherein the stirring rotation speed is 600r/min, the ultrasound power is 120w, the ultrasound frequency is 50kHz, and the reaction is carried out for 8min to obtain a reaction liquid;
and drying the reaction solution at 81 ℃, and crushing to obtain the titanium nanotube.
Example 4
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 60g of diatomite, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 140g of sepiolite powder, 560g of tourmaline powder and 2g of titanium dioxide;
dispersing titanium dioxide into 20g of ethanol to obtain a modified solution;
adding sepiolite and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 55 ℃ for 24h, and roasting at 270 ℃ for 8h to obtain the modified tourmaline powder.
Example 5
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 60g of diatomite, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 140g of sepiolite powder, 40g of titanium nanotubes and 560g of tourmaline powder;
adding sepiolite, titanium nanotubes and tourmaline powder into 20g of absolute ethyl alcohol, uniformly mixing, granulating to obtain particles with the particle size of 0.5-1 mm, drying at 55 ℃ for 24h, and roasting at 270 ℃ for 8h to obtain the modified tourmaline powder. The preparation method of the titanium nanotube comprises the following steps:
taking 40g of nano titanium dioxide and 4000g of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 105 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 4Mpa, simultaneously stirring and carrying out ultrasound on the dispersion liquid, wherein the stirring rotation speed is 600r/min, the ultrasound power is 120w, the ultrasound frequency is 50kHz, and the reaction is carried out for 8min to obtain a reaction liquid;
and drying the reaction solution at 81 ℃, and crushing to obtain the titanium nanotube.
Comparative example 1
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide, 600g of tourmaline and 8g of Arabic gum.
The tourmaline is modified tourmaline.
The preparation method of the modified tourmaline comprises the following steps:
taking 140g of sepiolite powder, 40g of titanium nanotubes, 560g of tourmaline powder and 2g of titanium dioxide;
dispersing titanium dioxide into 20g of ethanol to obtain a modified solution;
adding sepiolite, titanium nanotubes and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 55 ℃ for 24h, and roasting at 270 ℃ for 8h to obtain the modified tourmaline powder. The preparation method of the titanium nanotube comprises the following steps:
taking 40g of nano titanium dioxide and 4000g of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 105 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 4Mpa, simultaneously stirring and carrying out ultrasound on the dispersion liquid, wherein the stirring rotation speed is 600r/min, the ultrasound power is 120w, the ultrasound frequency is 50kHz, and the reaction is carried out for 8min to obtain a reaction liquid;
and drying the reaction solution at 81 ℃, and crushing to obtain the titanium nanotube.
Comparative example 2
A thin layer mortar comprising: 350g of cement, 550g of machine-made sand, 150g of water, 120g of limestone powder, 15g of polycarboxylic acid water reducing agent, 12g of polyacrylamide and 8g of Arabic gum.
Examples of the experiments
The amount of negative ions generated in examples 1 to 5 and comparative example 1 was tested with reference to JC/T1016-2006 "test method for amount of negative ions generated in Material".
Putting the grid type ion collector without the sample plate into the ion collector0.4m3In the closed chamber, a static air ion tester is used for continuously testing the ion concentration by a computer, 16 numerical values are recorded, and the average value is taken as the background negative ion concentration (and the temperature and the relative humidity of the negative ion concentration are recorded); weighing the samples in the examples and the comparative examples, coating the samples on a 40cm × 40cm fiberboard, drying for 7 days, flatly placing the sample board on a grid-type ion collector, and placing the collector in a position of 0.4m3In the closed chamber, a static air ion tester is used for continuously testing the ion concentration by a computer, 8 numerical values are recorded, and the average value is taken as the negative ion concentration of each embodiment or comparative example; and subtracting the background negative ion concentration average value from the negative ion concentration average value of each example or comparative example to obtain the negative ion increment of each example or comparative example.
TABLE 1 Performance of the embodiments
As can be seen from table 1, the modified tourmaline can promote the release of negative ions.
The amount of negative ions released in example 2 was less than that in example 1, indicating that modified tourmaline made of titanium nanotubes was used. The concentration of negative ions in the examples 3-5 is lower than that in the example 1, which shows that when the tourmaline is modified, a certain synergistic effect is generated among the titanium nano tube, the sepiolite, the tourmaline and the titanium dioxide solution, and the performance of the tourmaline is obviously improved.
In comparative example 1, diatomite is not added, the negative ion release effect is poor, and the diatomite can absorb moisture to a certain extent, so that the local humidity of the coating is improved, and the release of negative ions is promoted. Under the action of the water reducing agent, the water content of the coating is low, and negative ions cannot be released under more proper humidity.
Experimental example 2
The thin-layer mortar in the example 1 and the comparative example 2 is coated on the wall surface by adopting a thin-layer mortar masonry method, and after the coating is placed for 28 days, the coating is observed, so that the coating in the example 1 is not obviously cracked, but the surface of the coating is not obviously different from that in the comparative example 2, which shows that the service life of the mortar after application is not obviously influenced by adding the diatomite and the tourmaline.
The above detailed description is specific to possible embodiments of the present invention, and the above embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included in the present claims.
Claims (10)
1. Thin-layer mortar, characterized in that it comprises: 300-400 parts by mass of cement, 500-600 parts by mass of machine-made sand, 100-200 parts by mass of water, 100-150 parts by mass of limestone powder, 10-20 parts by mass of a polycarboxylic acid water reducing agent, 10-15 parts by mass of polyacrylamide, 50-80 parts by mass of diatomite, 500-800 parts by mass of tourmaline and 6-10 parts by mass of Arabic gum.
2. The thin-layer mortar of claim 1, comprising: 350-400 parts of cement, 550-600 parts of machine-made sand, 150-200 parts of water, 120-150 parts of limestone powder, 15-20 parts of a polycarboxylic acid water reducing agent, 12-15 parts of polyacrylamide, 60-80 parts of diatomite, 600-800 parts of tourmaline and 8-10 parts of Arabic gum.
3. The thin-layer mortar of claim 1, comprising: 350 parts of cement, 550 parts of machine-made sand, 150 parts of water, 120 parts of limestone powder, 15 parts of a polycarboxylic acid water reducing agent, 12 parts of polyacrylamide, 60 parts of kieselguhr, 600 parts of tourmaline and 8 parts of Arabic gum.
4. The thin layer mortar of claim 2, wherein the tourmaline is a modified tourmaline.
5. The thin layer mortar of claim 1, wherein the modified tourmaline is prepared by the following steps:
taking 120-150 parts by mass of sepiolite powder, 20-50 parts by mass of titanium nanotubes, 500-600 parts by mass of tourmaline powder and 1-3 parts by mass of titanium dioxide;
dispersing titanium dioxide into 10-30 parts by mass of ethanol to obtain a modified solution;
adding sepiolite, titanium nanotubes and tourmaline powder into the modification liquid, uniformly mixing, granulating to obtain a particle size of 0.5-1 mm, drying at 50-60 ℃ for 24h, and roasting at 250-300 ℃ for 6-10 h to obtain the modified tourmaline powder.
6. The thin-layer mortar as claimed in claim 1, wherein the sepiolite powder is 140-150 parts by mass, the titanium nanotube is 40-50 parts by mass, the tourmaline powder is 560-600 parts by mass, and the titanium dioxide is 2-3 parts by mass.
7. The thin-layer mortar as claimed in claim 1, wherein the sepiolite powder is 140 parts by mass, the titanium nanotubes are 40 parts by mass, the tourmaline powder is 560 parts by mass, and the titanium dioxide is 2 parts by mass.
8. The thin-layer mortar of claim 1, wherein the titanium nanotubes are prepared by a method comprising:
taking 20-50 parts by mass of nano titanium dioxide and 2000-5000 parts by mass of 5mol/L sodium hydroxide solution;
dispersing nano titanium dioxide into a sodium hydroxide solution, and performing ultrasonic treatment for 1 hour to obtain a dispersion liquid;
heating the dispersion liquid to 100-110 ℃, carrying out hydrothermal reaction, controlling the reaction to be carried out under 3-5 Mpa, simultaneously stirring and ultrasonically treating the dispersion liquid, wherein the stirring rotation speed is 500-700 r/min, the ultrasonic power is 100-150 w, the ultrasonic frequency is 40-60 kHz, and reacting for 5-10 min to obtain a reaction liquid;
and drying the reaction solution at 80-90 ℃, and crushing to obtain the titanium nanotube.
9. The thin-layer mortar of claim 1, wherein the nano titanium dioxide is 40 parts by mass, and the sodium hydroxide solution is 4000 parts by mass at a concentration of 5 mol/L.
10. Use of the thin-layer mortar according to any one of claims 1 to 9 as a raw material for a thin-layer mortar masonry method.
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| CN202011317015.2A CN112390580A (en) | 2020-11-20 | 2020-11-20 | Thin-layer mortar and application thereof |
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