CN111675515A - Sound insulation mortar, sound insulation floor structure and preparation method of sound insulation mortar - Google Patents
Sound insulation mortar, sound insulation floor structure and preparation method of sound insulation mortar Download PDFInfo
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- CN111675515A CN111675515A CN202010520083.2A CN202010520083A CN111675515A CN 111675515 A CN111675515 A CN 111675515A CN 202010520083 A CN202010520083 A CN 202010520083A CN 111675515 A CN111675515 A CN 111675515A
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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
- C04B28/04—Portland cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/045—Polyalkenes
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention provides sound insulation mortar, a sound insulation floor slab structure and a preparation method of the sound insulation mortar, wherein the sound insulation mortar is prepared from the following raw materials in percentage by weight: 13% to 20% of cement; 20% to 35% of elastic sound-insulating particles; sand, 25% to 40%; 5 to 15 percent of binder for building; water, 20 to 25%. The sound insulation floor structure comprises a floor layer, a sound insulation mortar layer, a dry mortar layer and floor tiles which are sequentially arranged from bottom to top. The preparation method includes steps S1 to S4. The sound insulation mortar has good sound insulation performance, can reduce the thickness of a sound insulation mortar layer in a sound insulation floor slab structure, and saves space to the maximum extent.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to sound insulation mortar and a sound insulation floor slab structure.
Background
The solid sound is that the energy of impact sound is attenuated very little in traditional building materials, the propagation speed is faster than in the air, the propagation distance is very far away, the air sound insulation effect of the existing concrete floor is good, but the effect on the impact sound (solid sound) is not ideal, so that the voice of the resident living in the lower floor can not be heard by the resident living in the upper floor, but the sound of the resident living in the lower floor, such as the desk dragging of the resident living in the upper floor, the jumping of the child, and the impact of the heel on the ground, has a great influence on the resident living in the lower floor. In order to improve the sound insulation effect of the floor bottom plate, a layer of sound insulation material is generally arranged in the floor bottom plate, and the common sound insulation material is sound insulation mortar. However, because the existing sound insulation mortar has a limited sound insulation effect, the thickness of the sound insulation mortar layer needs to be increased to achieve the sound insulation effect, so that the thickness of the sound insulation floor is too thick, the sound insulation floor occupies the space inside the house, and the effective height inside the house is shortened.
Disclosure of Invention
The invention aims to provide sound insulation mortar with good sound insulation performance.
In order to achieve the first purpose, the sound insulation mortar provided by the invention comprises the following raw materials in percentage by weight: 13% to 20% of cement; 20% to 35% of elastic sound-insulating particles; sand, 25% to 40%; 5 to 15 percent of binder for building; water, 20 to 25%. The elastic sound insulation particles are composed of the following raw materials in percentage by weight: sodium dodecyl sulfate, 10%; 25% of polypropylene; 35% of calcium powder; 20% of white mineral oil; 10% of natural rubber. The elastic sound-insulating particles are prepared by putting the raw materials in percentage by weight into a powder forming machine, and forming and crushing the raw materials.
According to the scheme, in the elastic sound insulation mortar, the elastic sound insulation particles can play a role in reducing the sound wave intensity. When the floor is impacted, when sound waves generated by the impact pass through the sound insulation mortar layer, the elastic sound insulation particles in the sound insulation mortar layer can reflect the sound waves to all directions, and the sound waves reflected to all directions are greatly attenuated through the sound wave intensity of the sound insulation floor after the sound waves are mutually interfered and offset. Through the process, the elastic sound insulation mortar can have a good sound insulation effect. The sound insulation mortar can achieve good sound insulation effect only by a sound insulation mortar layer with the thickness of 10mm, and can save space. If the conventional sound insulation mortar is adopted, a sound insulation mortar layer with the thickness of 30mm is needed, so that the thickness of the whole sound insulation floor is increased, and the effective height inside a house is reduced. The elastic sound-insulating particles are prepared by mixing 10% of sodium dodecyl sulfate, 25% of polypropylene, 35% of calcium powder, 20% of white mineral oil and 10% of natural rubber and then processing. Because the rubber belongs to inflammables, the content of the natural rubber in the elastic sound insulation particles is only 10%, and therefore the elastic sound insulation particles have good flame retardance. The sodium dodecyl sulfate, the polypropylene, the calcium powder and the white mineral oil belong to nontoxic substances, and the elastic sound-insulating particles prepared from the raw materials have good environmental protection property. Thus, the sound insulation mortar prepared by the elastic sound insulation particles also has good flame retardance and environmental protection.
Preferably, the cement is a composite portland cement.
In the scheme, the composite portland cement can improve the strength of the whole sound insulation mortar.
The further proposal is that the particle size of the elastic sound-insulating particles is 2 mm-4 mm.
In the scheme, 10% of sodium dodecyl sulfate, 25% of polypropylene, 35% of calcium powder, 20% of white mineral oil and 10% of natural rubber are mixed and then put into a powder forming machine, and the elastic sound-insulating particles with the particle size range of 2-4 mm are prepared by the powder forming machine through processes of forming, crushing and the like.
In a further proposal, the grain diameter of the sand is 0.35 mm-0.5 mm.
In the scheme, the sand is used as fine aggregate and plays roles in framework and filling in the sound insulation mortar.
The further proposal is that the adhesive for construction is special adhesive, which is composed of the following raw materials: 18-23 parts of butyl acrylate, 8-14 parts of vinyl acetate, 9-16 parts of acrylic acid, 15-23 parts of gelatin, 5-8 parts of oxidant, 40-48 parts of pH regulator, 10-20 parts of organic silicon, 3-5 parts of initiator and 120-140 parts of deionized water.
In the scheme, the special glue has the main function of increasing the bonding strength and can improve the effective compression resistance, crack resistance, permeability resistance and tensile resistance of the sound insulation mortar.
A second object of the present invention is to provide a sound-insulating floor structure that can save space.
In order to achieve the second objective, the sound insulation floor slab structure provided by the invention comprises a floor slab layer, a sound insulation mortar layer, a dry mortar layer and floor tiles which are sequentially arranged from bottom to top.
Preferably, the thickness of the sound insulation mortar layer is 10 mm.
Further, the thickness of the dry mortar layer is 30 mm.
According to the scheme, the sound insulation mortar provided by the invention has a good sound insulation effect, so that the sound insulation mortar layer with the thickness of 10mm can meet the standard of the corresponding sound insulation requirement, the thickness of the sound insulation mortar layer can be reduced, the thickness of the whole sound insulation floor structure becomes thinner, the space can be saved, and the effective height in a house can be increased.
In order to achieve the third object, the preparation method of the sound insulation mortar provided by the invention comprises the following steps:
step S1: mixing and stirring cement and sand to form cement mortar;
step S2: mixing water and special glue, and pouring into a stirrer;
step S3: adding elastic sound insulation particles into the stirrer;
step S4: pouring cement mortar into a stirrer for stirring.
According to the scheme, in the process of preparing the sound insulation mortar provided by the invention, firstly, raw materials in a corresponding proportion are prepared according to the proportion provided by the invention, then, the step S1 is executed, cement and sand are mixed and stirred to form cement mortar, and then the stirred cement mortar is placed aside; then, step S2 is executed, water and special glue are mixed and poured into a blender; then, step S3 is executed, and the prepared elastic sound insulation particles are poured into a mixer; and finally, executing step S4, pouring the prepared cement mortar into a stirrer for stirring, and preparing the required cement mortar after stirring.
Drawings
Fig. 1 is a structural view of a sound insulation floor structure according to an embodiment of the present invention.
FIG. 2 is a flow chart of a preparation method of the sound insulation mortar of the embodiment of the invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The invention provides sound insulation mortar which is prepared from the following raw materials in percentage by weight:
13% to 20% of cement;
20% to 35% of elastic sound-insulating particles;
sand, 25% to 40%;
5 to 15 percent of binder for building;
water, 20% to 25%.
Wherein, the cement is composite portland cement, which can improve the strength of the whole sound insulation mortar. The sand is common fine building sand, and the grain diameter of the sand is 0.35 mm-0.5 mm. The sand is used as fine aggregate and plays roles of framework and filling in the sound insulation mortar. The particle size of the elastic sound insulation particles is 2-4 mm. The elastic sound-insulating particles are prepared by mixing 10% of sodium dodecyl sulfate, 25% of polypropylene, 35% of calcium powder, 20% of white mineral oil and 10% of natural rubber, and then putting the mixture into a powder forming machine to be formed, crushed and the like. Because the rubber belongs to inflammables, the content of the natural rubber in the elastic sound insulation particles is only 10%, and therefore the elastic sound insulation particles have good flame retardance. The sodium dodecyl sulfate, the polypropylene, the calcium powder and the white mineral oil belong to nontoxic substances, and the elastic sound-insulating particles prepared from the raw materials have good environmental protection property.
In the embodiment, the building adhesive is a special adhesive, and the special adhesive is composed of the following raw materials: 18-23 parts of butyl acrylate, 8-14 parts of vinyl acetate, 9-16 parts of acrylic acid, 15-23 parts of gelatin, 5-8 parts of oxidant, 40-48 parts of pH regulator, 10-20 parts of organic silicon, 3-5 parts of initiator and 120-140 parts of deionized water. The special adhesive has the main functions of increasing the bonding strength and improving the effective compression resistance, crack resistance, permeability resistance and tensile resistance of the sound insulation mortar. It should be noted that the special adhesive prepared by the above components is only one of alternative embodiments, and other common building adhesives, such as white latex, can also be used as a building binder to prepare the sound insulation mortar in the present embodiment.
The present invention will be further described with reference to the following specific examples.
Example 1
The embodiment provides sound insulation mortar which is prepared from the following raw materials in percentage by weight:
cement: 20 percent;
elastic sound-insulating particles: 20 percent;
sand: 25 percent;
special glue: 15 percent;
water: 20 percent.
The sound insulation mortar prepared according to the proportion is used for carrying out impact sound test experiments, the impact sound test experiments need to be carried out in a sound producing room and a receiving room, the sound producing room and the receiving room are two rooms which are positioned in two adjacent floors and correspond to each other, wherein the room positioned on the upper layer is the sound producing room, and the room positioned on the lower layer is the receiving room. And (3) smearing sound insulation mortar with the thickness of 10mm on the floor of the sound production room to form a sound insulation mortar layer with the thickness of 10 mm. The striker is placed on the sound-proof mortar layer and the microphone is placed on the floor of the receiving chamber. Part 7 of the Acoustic measurement of building and construction Components according to GB/T19889.7-2005: the description in the floor impact sound insulation on-site survey, measures the relationship between the normalized impact sound pressure level received in the receiving room and the striker frequency. The sound insulation mortar of the embodiment was used for the impact sound test experiment, and this experiment was recorded as experiment 1. It should be noted that, since the loudness of noise generated by noise sources such as pulling a table indoors, running and jumping by children, knocking the ground by a heel, etc. generally does not exceed 85dB, in experiment 1, the standard impact sound pressure level of the impactor is 85 dB. Before calculating the normalized impact sound pressure level in the receiving chamber, the reverberation time T of the receiving chamber is first calculated, which can be calculated using the formula a ═ 0.16V/T, where a is the sound absorption quantity in square meters (m)2) The sound absorption quantity is equivalent absorption in the receiving chamberThe acoustic area. The sound absorption amount a can be calculated by a ═ aS, where a is the sound absorption coefficient of the receiving chamber and S is the sound absorption area in the receiving chamber. In this experiment, the sound absorption coefficient a was 0.2. V is the receiving chamber volume in cubic meters (m)3) And T is reverberation time in seconds(s). And a normalized impact sound pressure level L in the receiving chambernTCan pass through LnT＝Li-10log〖T/T0Calculated in dB. Wherein L isiTo hit the sound pressure level, it can be measured in the receiving chamber by a microphone. T is0For the reference reverberation time, the reference reverberation time T in the house0It was 0.5 s. In experiment 1, the striker was used to impact the floor of the sound-producing room, the frequency f at which the striker impacted the floor was continuously adjusted, and the standardized impact sound pressure level L in the receiving room at different frequencies f was calculatednTThe standardized impact sound pressure level L can be obtainednTRelationship to impact sound frequency f, normalized impact sound pressure level L in experiment 1nTThe relationship with the frequency f of the impact sound is shown in the following table.
Table 1 experiment 1 relationship between normalized impact sound pressure level and impact sound frequency
Referring to Table 1, a weighted normalized impact sound pressure level L can be calculated from the normalized impact sound pressure level values in Table 1nTwThe weighted standardized impact sound pressure level is a single-value index which is read after a standardized impact sound pressure level frequency characteristic curve is compared with a reference curve specified by the international organization for standardization according to a certain rule and is generally used for evaluating whether the floor impact sound reaches the standard or not. In the existing evaluation standard of floor impact sound, weighting the standard impact sound pressure level LnTwLess than 70dB is a more ideal condition, LnTwNot more than 75dB at most, and L in Table 1nTwIs 71.0dB, which shows that the sound insulation mortar provided by the embodiment can reach the impact sound of the existing floor slabThe evaluation criteria of (1).
Example 2
The embodiment provides another sound insulation mortar which is prepared from the following raw materials in percentage by weight:
cement: 13 percent;
elastic sound-insulating particles: 28%;
sand: 26 percent;
special glue: 8 percent;
water: 25 percent.
The sound insulation mortar of the embodiment was used for the impact sound test experiment, and this experiment was recorded as experiment 2. The experimental principle and the experimental procedure of experiment 2 were the same as those of experiment 1. Normalized impact sound pressure level L in experiment 2nTThe relationship with the frequency f of the impact sound is shown in the following table.
Table 2 experiment 2 relationship between standard impact sound pressure level and impact sound frequency
According to the table 2, it can be seen that the sound insulation mortar prepared according to the ratio provided by the embodiment is made into a sound insulation mortar layer with the thickness of 10mm, and then after the sound insulation mortar layer with the thickness of 10mm is applied to a floor, the weighted standardized impact sound pressure level L of the sound insulation floor structurenTw64dB, lower than 70dB, and meets the evaluation standard of the existing floor impact sound.
Example 3
The embodiment provides a third sound insulation mortar, which consists of the following raw materials in percentage by weight:
cement: 13 percent;
elastic sound-insulating particles: 30 percent;
sand: 25 percent;
special glue: 12 percent;
water: 20 percent.
The sound insulation mortar of the embodiment is adopted to carry out impact sound test experiments,this experiment was noted as experiment 3. The experimental principle and the experimental procedure of experiment 3 are the same as those of experiment 1. Normalized impact sound pressure level L in experiment 3nTThe relationship with the frequency f of the impact sound is shown in the following table.
Table 3 experiment 3 relationship between normalized impact sound pressure level and impact sound frequency
According to the table 3, it can be seen that the sound insulation mortar prepared according to the ratio provided by the embodiment is made into a sound insulation mortar layer with the thickness of 10mm, and then the weighted standardized impact sound pressure level L of the sound insulation floor structure is obtained after the sound insulation mortar layer with the thickness of 10mm is applied to the floornTw62dB, lower than 70dB, and meets the evaluation standard of the existing floor impact sound.
Example 4
The embodiment provides a fourth sound insulation mortar, which consists of the following raw materials in percentage by weight:
cement: 13 percent;
elastic sound-insulating particles: 35 percent;
sand: 25 percent;
special glue: 7 percent;
water: 20 percent.
The sound insulation mortar of the embodiment was used for the impact sound test experiment, and this experiment was recorded as experiment 4. The experimental principle and the experimental procedure of experiment 4 were the same as those of experiment 1. Normalized impact sound pressure level L in experiment 4nTThe relationship with the frequency f of the impact sound is shown in the following table.
Table 3 experiment 3 relationship between normalized impact sound pressure level and impact sound frequency
From Table 4, it can be seen that the sound insulation mortar prepared by the formulation provided in the present example is prepared10mm sound insulation mortar layer, then after applying 10mm sound insulation mortar layer to the floor, the standardized impact sound pressure level L of the weight of the sound insulation floor structurenTw59dB, lower than 70dB, and meets the evaluation standard of the existing floor impact sound.
Referring to fig. 1, the sound insulation floor structure provided by the invention comprises a floor layer 1, a sound insulation mortar layer 2, a dry mortar layer 3 and floor tiles 4 which are arranged in sequence from bottom to top. Wherein, the thickness of the sound insulation mortar layer 2 is 10mm, the thickness of the dry mortar layer 3 is 30mm, and the thickness of the floor layer 1 is 120 mm.
In this embodiment, when laying the sound insulation floor structure, at first scribble the sound insulation mortar on floor layer 1's upper surface, form 10mm thick sound insulation mortar layer 2, because can't guarantee to scribble evenly at the in-process of scribbling the sound insulation mortar, uneven condition may appear in the upper surface on sound insulation mortar layer 2. In order to avoid the influence of the phenomenon on the floor tile laying, a dry mortar layer 3 needs to be laid on the sound insulation mortar layer 2, the dry mortar layer 3 mainly has the functions of leveling and bonding, and the floor tile laying quality of the floor tile can be improved by laying the floor tile on the dry mortar layer 3.
In this embodiment, the thickness of the sound insulation mortar layer 2 is only 10mm, so that the thickness of the whole sound insulation floor structure can be thinner, thereby saving space and increasing the effective height in the house.
Referring to fig. 2, the preparation method of the sound insulation mortar provided by the invention comprises the following steps: firstly, step S1 is executed, cement and sand are mixed and stirred to form cement mortar; then, step S2 is executed, water and special glue are mixed and poured into a blender; then, step S3 is executed, and the prepared elastic sound insulation particles are poured into a mixer; and finally, executing step S4, pouring the prepared cement mortar into a stirrer for stirring, and preparing the required cement mortar after stirring.
While the present invention has been particularly shown and described with reference to the present embodiments and preferred versions thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The sound insulation mortar is characterized by comprising the following raw materials in percentage by weight:
cement: 13 to 20 percent;
elastic sound-insulating particles: 20% to 35%;
sand: 25% to 40%;
adhesive for construction: 5% to 15%;
water: 20 to 25%;
the elastic sound insulation particles are prepared from the following raw materials in percentage by weight:
sodium lauryl sulfate: 10 percent;
polypropylene: 25 percent;
calcium powder: 35 percent;
white mineral oil: 20 percent;
natural rubber: 10 percent;
the elastic sound insulation particles are prepared by putting the raw materials in percentage by weight into a powder forming machine, and forming and crushing the raw materials.
2. The sound insulation mortar of claim 1, wherein:
the cement is composite portland cement.
3. The sound-insulating mortar according to claim 1 or 2, characterized in that:
the particle size of the elastic sound insulation particles is 2-4 mm.
4. The sound-insulating mortar according to claim 1 or 2, characterized in that:
the grain diameter of the sand is 0.35 mm-0.5 mm.
5. The sound insulation mortar according to claim 1 or 2, wherein the building adhesive is a special adhesive, and the special adhesive comprises the following raw materials:
18-23 parts of butyl acrylate, 8-14 parts of vinyl acetate, 9-16 parts of acrylic acid, 15-23 parts of gelatin, 5-8 parts of oxidant, 40-48 parts of pH regulator, 10-20 parts of organic silicon, 3-5 parts of initiator and 120-140 parts of deionized water.
6. An acoustical insulation floor structure using the acoustical insulation mortar of claim 1, wherein:
the sound insulation floor structure comprises a floor layer, a sound insulation mortar layer, a dry mortar layer and floor tiles which are sequentially arranged from bottom to top.
7. The acoustical isolation floor structure of claim 6, wherein:
the thickness of the sound insulation mortar layer is 10 mm.
8. The sound-insulating floor structure according to claim 6 or 7, wherein:
the thickness of the dry mortar layer is 30 mm.
9. A process for the preparation of a sound-insulating mortar according to claim 1, characterized in that it comprises the following steps:
mixing and stirring the cement and the sand to form cement mortar;
mixing the water and the special glue, and pouring the mixture into a stirrer;
adding the elastic sound insulation particles into the stirrer;
and pouring the cement mortar into the stirrer for stirring.
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| CN112537933A (en) * | 2020-12-23 | 2021-03-23 | 深圳市亿东阳建材有限公司 | Sound insulation mortar and sound insulation floor slab structure system |
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| CN112374809A (en) * | 2020-10-30 | 2021-02-19 | 惠州市金卓越实业有限公司 | Ultrathin sound insulation mortar for impact sound of building floor slab |
| CN112575977A (en) * | 2020-12-04 | 2021-03-30 | 珠海市荣烁绿色建筑节能科技有限公司 | Sound insulation mortar, sound insulation floor slab, building and construction method of sound insulation floor slab |
| CN112537933A (en) * | 2020-12-23 | 2021-03-23 | 深圳市亿东阳建材有限公司 | Sound insulation mortar and sound insulation floor slab structure system |
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| CN111675515B (en) | 2022-05-31 |
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