CN113548859A - Sand-gathering sound-absorbing mortar and preparation process and construction method thereof - Google Patents
Sand-gathering sound-absorbing mortar and preparation process and construction method thereof Download PDFInfo
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- CN113548859A CN113548859A CN202110964527.6A CN202110964527A CN113548859A CN 113548859 A CN113548859 A CN 113548859A CN 202110964527 A CN202110964527 A CN 202110964527A CN 113548859 A CN113548859 A CN 113548859A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 74
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 56
- 239000004568 cement Substances 0.000 claims abstract description 44
- 238000010521 absorption reaction Methods 0.000 claims abstract description 37
- 239000010440 gypsum Substances 0.000 claims abstract description 30
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 229910052604 silicate mineral Inorganic materials 0.000 claims abstract description 27
- 239000010455 vermiculite Substances 0.000 claims abstract description 27
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 27
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 27
- 239000004816 latex Substances 0.000 claims abstract description 20
- 229920000126 latex Polymers 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000004094 surface-active agent Substances 0.000 claims abstract description 15
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 239000011812 mixed powder Substances 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 24
- 229920003086 cellulose ether Polymers 0.000 claims description 23
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 22
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 17
- 229920002907 Guar gum Polymers 0.000 claims description 16
- 239000000665 guar gum Substances 0.000 claims description 16
- 229960002154 guar gum Drugs 0.000 claims description 16
- 235000010417 guar gum Nutrition 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 13
- XTIIITNXEHRMQL-UHFFFAOYSA-N tripotassium methoxy(trioxido)silane Chemical group [K+].[K+].[K+].CO[Si]([O-])([O-])[O-] XTIIITNXEHRMQL-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000004224 protection Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 206010016807 Fluid retention Diseases 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000004111 Potassium silicate Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- BHGADZKHWXCHKX-UHFFFAOYSA-N methane;potassium Chemical compound C.[K] BHGADZKHWXCHKX-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052913 potassium silicate Inorganic materials 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
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- 239000003063 flame retardant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
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Images
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
- 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
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- 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
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- 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
-
- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a sand-gathering sound-absorbing mortar and a preparation process and a construction method thereof, wherein the sand-gathering sound-absorbing mortar comprises, by mass, 35% -40% of silicate mineral vermiculite, 40% -45% of cement/gypsum powder, 4% -8% of redispersible latex powder, 3% -8% of thickening agent, 2% -5% of surfactant and 2% -5% of additive. The preparation method comprises the steps of adding 35-40% of silicate mineral vermiculite into 40-45% of cement/gypsum powder, and stirring for 10-20 min to form mixed powder; then adding the redispersible latex powder, the thickening agent, the surfactant and the additive in sequence, adding the next component after adding one component and stirring for 2-3 min, and integrally stirring for 5-10 min after all the components are added to form the aggregate of the synthetic powder of the sand-gathering sound-absorbing mortar; finally, moisture-proof packaging is carried out, and the finished product is sold on the market. The effect is as follows: can effectively improve current sand material structural style singleness of gathering, the construction is loaded down with trivial details, increases the problem that building structure decorated heavy burden easily, and material construction is convenient, and the sound absorption effect is strong, and is heat-resisting, wear-resisting, the fire prevention, the corrosion protection nature is good.
Description
Technical Field
The invention relates to a building sound absorption material, in particular to sand gathering sound absorption mortar and a preparation process and a construction method thereof.
Background
Modern buildings often use large amounts of highly reflective materials such as concrete, glass, marble, and metal, resulting in low acoustic absorption, objectionable noise, or unpleasant sound reflections. In order to meet the requirement of high-quality acoustic environment, people pay more and more attention to acoustic building materials.
Most of the existing sound absorption building materials are plate-shaped objects, which are extremely inconvenient in ceiling construction, the materials are pre-formed, the installation and construction cost is high, the materials are easy to drop and deform, and the air permeability and the permeability resistance are poor; the building is also sprayed with sound absorption fibers, the sound absorption performance of the building is good, but the fibers are very easy to fall off in the using process to cause environmental pollution on the basis of the fiber material as aggregate.
Disclosure of Invention
In view of the above, the first objective of the present invention is to provide a sand-gathering sound-absorbing mortar, which mainly solves the problems of poor air permeability and permeability resistance, single product form and high installation and construction costs of the existing sand-gathering materials.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a gather sand sound absorption mortar which the key lies in: the composite material is prepared from the following raw materials in percentage by mass:
35-40% of silicate mineral vermiculite, 40-45% of cement/gypsum powder, 4-8% of redispersible latex powder, 3-8% of thickening agent, 2-5% of surfactant and 2-5% of additive.
Based on the design, the product provided by the invention is sold on the market in a mortar form, and a user can add water to stir at a construction site and construct in a spraying form, so that the requirements of different application scenes are met, the construction cost is saved, the requirements of sound absorption, air permeability and permeability resistance can be met, any fiber material is not required to be added in the manufacturing process, and the phenomenon that fibers fall off in use is effectively avoided.
Optionally, the thickening agent is a cellulose ether or/and a guar gum ether.
Optionally, the cement/gypsum powder is portland white cement or/and gypsum powder.
Optionally, the cement/gypsum powder is 20% to 25% portland white cement and 20% to 25% gypsum powder.
Optionally, the additive is potassium methyl silicate or/and lithium silicate.
Optionally, the surfactant is sodium lauryl sulfate. The sodium dodecyl sulfate is a fluorocarbon surfactant, has the outstanding effects of seepage prevention, pollution prevention, ageing resistance and ultraviolet resistance, and can provide effective protection for the sound absorption mortar.
Based on the sand gathering and sound absorbing mortar, the invention also provides a preparation process of the sand gathering and sound absorbing mortar, which comprises the following steps:
s1: adding 35-40% of silicate mineral vermiculite into 40-45% of cement/gypsum powder, and stirring for 10-20 min to form mixed powder, wherein the environmental temperature is usually 10-50 ℃;
s2: sequentially adding the redispersible latex powder, the thickening agent, the surfactant and the additive, adding the next component after adding one component and stirring for 2-3 min, and integrally stirring for 5-10 min after adding all the components to form the aggregate of the synthetic powder of the sand-gathering sound-absorbing mortar;
s3: and (5) moisture-proof packaging, and selling the finished product.
In addition, the invention also provides a construction method of the sand gathering and sound absorbing mortar, which comprises the following steps:
s11: according to the material demand, stirring the aggregate powder synthesized by the aggregate and the sound absorption mortar in a plastic container according to the proportion of 1:1.5, wherein the water temperature is usually 20-40 ℃;
s12: standing and soaking the uniformly stirred slurry for 30-60 min;
s13: and after soaking, stirring uniformly again, and spraying by using a spraying machine.
Alternatively, when the spraying is not smooth in step S13, no more than 10% of water is added and stirred for use.
Optionally, the thickness of each spraying in step S13 does not exceed 15 mm.
Compared with the prior art, the invention has the following remarkable effects:
1. the silicate mineral vermiculite has ultrahigh fireproof and flame-retardant properties, is a light heat-insulating material, is prepared by fusing and matching the silicate mineral vermiculite and the cement/gypsum powder, complements the advantages and disadvantages of the two materials, supports the integral structure of the silicate mineral vermiculite by the high hardness of the cement/gypsum powder, and has moderate hardness after mortar construction and solidification.
2. The redispersible latex powder can improve the bonding property of the cement/gypsum powder, increase the toughness and ensure that the mortar can be combined with buildings or walls more firmly;
3. the thickening agent is added, so that the thickening property, the water-retaining property and the product viscosity are improved, and the mortar can better adapt to the climate difference between the south and the north;
4. the addition of the surfactant can improve the wetting, penetration, emulsification and leveling performance of mesons. The construction difficulty is reduced, and the construction is smoother;
5. different additives are added according to the use scene of the material, so that the performances of waterproofness, moisture resistance, high temperature resistance, rust resistance, ageing resistance and the like can be effectively improved;
6. the material has excellent sound absorption performance, the sound absorption effect is achieved through friction between a large number of pores and sound, the pore volume of all sound absorption mortar on the supermarket surface is far away, the sound absorption effect which is more than 10 times of the sound absorption effect of common sound absorption mortar is further achieved, the construction process is simple and convenient, the material is light, and the decoration load of a building structure cannot be excessively increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a manufacturing process and construction according to embodiment 1 of the present invention;
FIG. 2 is a flow chart of the manufacturing process and construction of the embodiment 2 of the present invention;
FIG. 3 is a flow chart of the manufacturing process and construction of embodiment 3 of the present invention;
FIG. 4 is a flow chart of the manufacturing process and construction of the embodiment 4 of the present invention;
FIG. 5 is a flow chart of the manufacturing process and construction of embodiment 5 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1:
the sand gathering and sound absorbing mortar provided by the embodiment comprises the following raw material components in percentage by weight as shown in table 1:
table 1: example 1 relationship of raw Material Components
| Serial number | Components | Mass percent (%) |
| 1 | Silicate mineral vermiculite | 38％ |
| 2 | Silicate white cement | 45％ |
| 3 | Redispersible latex powder | 5％ |
| 4 | Cellulose ethers | 3％ |
| 5 | Sodium dodecyl sulfate | 4％ |
| 6 | Potassium methyl silicate | 5％ |
As can be seen from Table 1, in this example, the cement/gypsum powder is prepared from only Portland white cement, only cellulose ether as a thickener, sodium lauryl sulfate as a surfactant, and potassium methyl silicate as an admixture, as shown in FIG. 1, and comprises the following steps:
s1: adding 38% of silicate mineral vermiculite into 45% of silicate white cement, and stirring for 10-20 min to form mixed powder;
s2: sequentially adding 5% of redispersible latex powder, 3% of cellulose ether, 4% of sodium dodecyl sulfate and 5% of potassium methylsilicate, adding the next component after each component is added and stirring for 2-3 min, and integrally stirring for 5-10 min after all the components are added to form the aggregate of the aggregate, the sound absorption mortar and the synthesized powder;
s3: and (5) moisture-proof packaging, and selling the finished product.
When the product is used for construction, the construction method comprises the following steps:
s11: according to the material demand, stirring the aggregate and water in the plastic container according to the proportion of 1: 1.5;
s12: standing and soaking the uniformly stirred slurry for 30-60 min;
s13: stirring uniformly again after soaking, spraying with a spraying machine, adding water of not more than 10% when spraying is not smooth, stirring, and using, wherein the thickness of spraying is not more than 15mm each time.
The silicate mineral vermiculite in the embodiment has ultrahigh fireproof and flame retardant properties, is a light heat-insulating material, is prepared by blending 38% of silicate mineral vermiculite and 45% of silicate white cement, and can complement the advantages and disadvantages of the two materials by fully combining the silicate mineral vermiculite and the 45% of silicate white cement, and the high hardness of the silicate cement supports the integral structure of the silicate mineral vermiculite, so that the hardness of the silicate mineral vermiculite after the mortar is constructed and cured is moderate. The silicate white cement content is preferably 40-50%, and excessive silicate white cement causes air permeability reduction and influences sound absorption, and too little silicate white cement causes the mortar to be soft and easy to crack.
The addition of 5% of redispersible latex powder in the raw materials can improve the bonding property of the silicate white cement, so that the mortar can be more firmly combined with buildings or walls, and the addition of 4% to 8% is proper, so that excessive viscosity is easily caused, and the construction difficulty is increased.
The addition of 3% of cellulose ether improves the consistency, water-retaining property, dispersibility and viscosity, and the usage amount can be properly adjusted within the range of 3% -5%, so that delayed coagulation or early strength mortar is made, and the mortar can better adapt to the climate difference in the south and the north.
The sodium dodecyl sulfate is one of fluorocarbon surfactants, and the surface tension is increased by adding 4% of the sodium dodecyl sulfate, so that the wetting, penetrating, emulsifying and leveling properties of mesons are improved. The difficulty of construction is reduced, and the construction is smoother.
5 percent of methyl potassium silicate is added as an additive, so that the water resistance, moisture resistance, rust resistance, aging resistance and the like of the mortar can be greatly improved, and the mortar has high and low temperature resistance.
The sand gathering sound absorption mortar prepared based on the raw materials and the process has super-strong fireproof performance and excellent sound absorption performance, reaches A1-grade fireproof grade, achieves a sound absorption effect through friction of a large number of pores and sound, and further achieves the sound absorption performance exceeding that of common sound absorption mortar according to the pore volume of all sound absorption mortar on the supermarket far away face.
Example 2:
the sand gathering and sound absorbing mortar provided by the embodiment comprises the following raw material components in percentage by weight as shown in table 2:
table 2: example 2 relationship of raw Material Components
| Serial number | Components | Mass percent (%) |
| 1 | Silicate mineral vermiculite | 40％ |
| 2 | Silicate white cement | 40％ |
| 3 | Redispersible latex powder | 6％ |
| 4 | Cellulose ethers | 3％ |
| 5 | Guar gum ether | 3％ |
| 6 | Sodium dodecyl sulfate | 3％ |
| 7 | Potassium methyl silicate | 5％ |
As can be seen from Table 2, in this example, the cement/gypsum powder is prepared from only Portland white cement, the thickening agent is cellulose ether and guar gum ether, the surfactant is sodium dodecyl sulfate, and the admixture is prepared from only potassium methyl silicate, and the preparation process is as shown in FIG. 2, and comprises the following steps:
s1: adding 40% of silicate mineral vermiculite into 40% of silicate white cement, and stirring for 10-20 min to form mixed powder;
s2: sequentially adding 6% of redispersible latex powder, 3% of cellulose ether, 3% of guar gum ether, 3% of sodium dodecyl sulfate and 5% of potassium methylsilicate, adding the next component after each component is added and stirring for 2-3 min, and integrally stirring for 5-10 min after all the components are added to form the aggregate of the aggregate, sound absorption mortar and synthetic powder;
s3: and (5) moisture-proof packaging, and selling the finished product.
The construction method is the same as that of embodiment 1, and is not described herein again.
In the embodiment, silicate white cement with the same weight is added into 40% of vermiculite serving as a silicate mineral material, the addition of the silicate white cement in the proportion promotes the hardness of the mortar to be slightly reduced and is biased to be flexible, so that the vibration resistance of the mortar is improved, but the hardness is not enough, the impact resistance is not good, and the mortar can be damaged by scraping. Can only be applied to ceilings or places which are not easy to touch.
The addition of 6 percent of redispersible latex powder can better increase the bonding property and the flexibility, and the mortar can be firmly combined with a building or a wall body to increase the vibration resistance.
The cellulose ether has the functions of thickening, dispersing, water retention and bonding, can ensure that silicate mineral vermiculite and silicate white cement are fused more uniformly, is beneficial to improving the bonding property, is a material which keeps the original performance in the construction process and is not damaged, and ensures that the construction is smoother and simpler. The cellulose ether is usually water-soluble and solvent-type, and the water-soluble cellulose ether is more convenient to dissolve and construct, so that the sound absorption mortar has a simpler construction process.
The addition of guar gum ether can assist in improving the performance of cellulose ether, and guar gum can equally replace cellulose ether under the conditions of low viscosity and low mixing amount, so that the guar gum has similar water retention property. But the consistency, the anti-sagging property, the thixotropy and the like are obviously improved. Under the conditions of high viscosity and large mixing amount, the guar gum can not replace cellulose ether, and the guar gum and the cellulose ether can generate more excellent performance when being mixed for use, are more smooth during construction, and are beneficial to a scraping process.
The sodium dodecyl sulfate is one of fluorocarbon surfactants, has stain resistance, foaming and ageing resistance, improves bubbles generated in the mortar stirring process, leaves more micropores after construction, increases the throughput of sound, and eliminates the noise through friction.
The methyl potassium silicate improves the water resistance, the moisture resistance and the rust resistance of the mortar, and reduces the phenomenon of rusting when the mortar is contacted with metal.
The sand gathering and sound absorbing mortar provided by the embodiment has a fireproof A1-grade fireproof grade and a large number of micropores, the sound absorbing effect is greatly improved, the sound absorbing coefficient of the sound absorbing mortar in the current market only reaches 0.1-0.3, the sound absorbing coefficient of the sand gathering and sound absorbing mortar reaches more than 0.7 and surpasses the sound absorbing performance of other sound absorbing mortars by more than 2 times.
Example 3:
the sand gathering and sound absorbing mortar provided by the embodiment comprises the following raw material components in percentage by weight as shown in table 3:
as can be seen from Table 3, the main difference between this example and example 2 is that the cement/gypsum powder uses two components of Portland white cement and gypsum powder, and the preparation process is shown in FIG. 3, and includes the following steps:
s1: adding 38% of silicate mineral vermiculite into 20% of silicate white cement and 25% of gypsum powder, and stirring for 10-20 min to form mixed powder;
s2: sequentially adding 4% of redispersible latex powder, 3% of cellulose ether, 4% of guar gum ether, 3% of sodium dodecyl sulfate and 5% of potassium methylsilicate, adding the next component after each component is added and stirring for 2-3 min, and integrally stirring for 5-10 min after all the components are added to form the aggregate of the aggregate, sound absorption mortar and synthetic powder;
s3: and (5) moisture-proof packaging, and selling the finished product.
The construction method is the same as that of embodiment 1, and is not described herein again.
Table 3: example 3 relationship of raw Material Components
| Serial number | Components | Quality ofPercent (%) |
| 1 | Silicate mineral vermiculite | 38％ |
| 2 | Silicate white cement | 20％ |
| 3 | Gypsum powder | 25％ |
| 4 | Redispersible latex powder | 4％ |
| 5 | Cellulose ethers | 3％ |
| 6 | Guar gum ether | 4％ |
| 7 | Sodium dodecyl sulfate | 3％ |
| 8 | Potassium methyl silicate | 3％ |
The silicate mineral vermiculite is a light material with fire resistance, non-inflammability and heat preservation, 20% of silicate white cement and 25% of high-strength gypsum powder are added, the matching improves the hardness of the silicate mineral vermiculite, and the cracking caused by insufficient water retention of mortar due to water absorption of a cement wall body is avoided.
The redispersible latex powder can increase the adhesiveness and toughness of the silicate white cement and the high-strength gypsum powder, so that the mortar is bonded with a building more firmly and durably.
The addition of the cellulose ether can play roles in thickening, water retention, dispersion, leveling and the like, so that the sound absorption mortar can be stirred uniformly after being added with water, and the water retention effect on silicate white cement and high-strength gypsum during the dry-solid period can achieve better strength.
The addition of the guar gum ether fully assists the performance of cellulose ether, so that the mortar is more smooth during construction, the sag resistance of the sound absorption mortar is improved, and the thixotropy is greatly improved.
The sodium dodecyl sulfate is one of fluorocarbon surfactants, has the performance of improving wetting, permeation, emulsification and leveling of mesons, and is beneficial to hydrophobic, oleophobic and antifouling effects.
The methyl potassium silicate has super-strong waterproof, anti-seepage, anti-rust, anti-aging and anti-pollution performances, improves various protections of the mortar, and enables the mortar to have more outstanding and durable performances.
The holes formed in the aggregate sand sound absorption mortar prepared by the embodiment are incomparable with the mortar on the market, and the sound is gradually reduced by friction through the holes formed in the mortar, so that the sound absorption effect is formed. The mortar is light fireproof A1 grade, does not burn, has little influence on the bearing of a building structure, and is more than 2 times of the sound absorption effect of other sound absorption mortar.
Example 4:
the sand gathering and sound absorbing mortar provided by the embodiment comprises the following raw material components in percentage by weight as shown in table 4:
table 4: example 4 relationship of raw Material Components
| Serial number | Components | Mass percent (%) |
| 1 | Silicate mineral vermiculite | 38％ |
| 2 | Silicate white cement | 20％ |
| 3 | Gypsum powder | 20％ |
| 4 | Redispersible latex powder | 4％ |
| 5 | Cellulose ethers | 4％ |
| 6 | Guar gum ether | 4％ |
| 7 | Sodium dodecyl sulfate | 3％ |
| 8 | Potassium methyl silicate | 4％ |
| 9 | Lithium silicate | 3％ |
As can be seen from Table 4, the main difference between this example and example 3 is that 3% of lithium silicate is added to the admixture, and the ratio of the remaining components, the manufacturing process and the working process thereof are substantially the same as those of example 3 as shown in FIG. 4, except that 3% of lithium silicate is added while stirring is performed by adding each component.
The lithium silicate in the mortar has the general performances of heat resistance, non-combustion, radiation resistance, no toxicity and the like, and also has the characteristics of self-drying, heat resistance of 1000 ℃, good abrasion resistance, moisture resistance, weather resistance, dry-wet resistance alternation, excellent water resistance and the like.
Example 5:
the sand gathering and sound absorbing mortar provided by the embodiment comprises the following raw material components in percentage by weight as shown in table 5: as can be seen from table 5, the main difference between this example and example 4 is that the proportions of the components are adjusted, the specific gravities of the silicate mineral vermiculite and the gypsum powder are increased, and the specific gravities of the thickener and the additive are reduced, the preparation process and the construction process are shown in fig. 5, and compared with example 4, the addition sequence of the redispersible latex powder is changed, and the cellulose ether and the guar gum ether are added first, and then the redispersible latex powder is added.
Compared with the embodiment 4, although the proportion of the thickening agent is reduced, the water retention property and the lubricity can still be improved due to the improvement of the proportion of the gypsum powder, and the cracking phenomenon caused by poor water retention after the mortar construction is effectively reduced.
Table 5: example 5 relationship of raw Material Components
| Serial number | Components | Mass percent (%) |
| 1 | Silicate mineral vermiculite | 40％ |
| 2 | Silicate white cement | 20％ |
| 3 | Gypsum powder | 25％ |
| 4 | Redispersible latex powder | 3％ |
| 5 | Cellulose ethers | 2％ |
| 6 | Guar gum ether | 2％ |
| 7 | Sodium dodecyl sulfate | 3％ |
| 8 | Potassium methyl silicate | 3％ |
| 9 | Lithium silicate | 2％ |
In conclusion, the sand-gathering sound-absorbing mortar and the preparation process and the construction method thereof provided by the invention can effectively solve the problems that the existing sand-gathering material is single in structural form, complicated in construction and easy to increase the decoration load of a building structure, and are convenient in material construction, strong in sound absorption effect, heat-resistant, wear-resistant, fireproof and good in corrosion resistance.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A sand gathering and sound absorbing mortar is characterized in that: the composite material is prepared from the following raw materials in percentage by mass:
35-40% of silicate mineral vermiculite, 40-45% of cement/gypsum powder, 4-8% of redispersible latex powder, 3-8% of thickening agent, 2-5% of surfactant and 2-5% of additive.
2. The sand-gathering sound-absorbing mortar of claim 1, wherein: the thickening agent is cellulose ether or/and guar gum ether.
3. The sand-gathering sound-absorbing mortar of claim 1, wherein: the cement/gypsum powder is silicate white cement or/and gypsum powder.
4. The sand-gathering sound-absorbing mortar of claim 3, wherein: the cement/gypsum powder is 20-25% of silicate white cement and 20-25% of gypsum powder.
5. The sand-gathering sound-absorbing mortar of claim 1, wherein: the additive is potassium methyl silicate or/and lithium silicate.
6. The sand-gathering sound-absorbing mortar as claimed in any one of claims 1 to 5, wherein: the surfactant is sodium dodecyl sulfate.
7. A process for preparing the sand-gathering sound-absorbing mortar as claimed in any of claims 1 to 6, which comprises the following steps:
s1: adding 35-40% of silicate mineral vermiculite into 40-45% of cement/gypsum powder, and stirring for 10-20 min to form mixed powder;
s2: sequentially adding the redispersible latex powder, the thickening agent, the surfactant and the additive, adding the next component after adding one component and stirring for 2-3 min, and integrally stirring for 5-10 min after adding all the components to form the aggregate of the synthetic powder of the sand-gathering sound-absorbing mortar;
s3: and (5) moisture-proof packaging, and selling the finished product.
8. The construction method of the aggregate sound absorption mortar prepared by the preparation process according to claim 7, which is characterized by comprising the following steps:
s11: according to the material demand, stirring the aggregate and water in the plastic container according to the proportion of 1: 1.5;
s12: standing and soaking the uniformly stirred slurry for 30-60 min;
s13: and after soaking, stirring uniformly again, and spraying by using a spraying machine.
9. The construction method according to claim 8, wherein: and step S13, when the spraying is not smooth, adding water with the concentration not more than 10% for stirring and using.
10. The construction method according to claim 8, wherein: in step S13, the thickness of each spraying is not more than 15 mm.
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Cited By (1)
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| CN117800663A (en) * | 2023-12-29 | 2024-04-02 | 中桔(广东)建材科技有限公司 | Light sound insulation mortar and preparation method thereof |
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