Thermal-insulation damping shock-absorption noise-reduction composite material and preparation method and application thereof

Abstract

The invention provides a thermal-insulation damping shock-absorption noise-reduction composite material as well as a preparation method and application thereof, and belongs to the technical field of building functional materials. The composite material comprises the following components in parts by weight: 30-40 parts of a cementing material, 8-13 parts of a particle damping component, 13-20 parts of a heat-insulating lightweight aggregate, 7-12 parts of a damping modified component, 3-5 parts of reinforced fibers, 10-15 parts of a mineral admixture, 1.2-2.4 parts of an auxiliary agent and 12-15 parts of water. Through innovation of the particle damping principle, breakthrough improvement of the vibration sound insulation performance of the cement-based material is achieved, a high-performance core material is provided for a sandwich sound insulation and heat preservation plate, and the technical innovation and the application value are remarkable.

Description

Technical Field

[0001] This invention relates to the field of building functional materials technology, and in particular to a thermal insulation, damping, vibration reduction and noise reduction composite material, its preparation method and application. Background Technology

[0002] Among existing building materials, thermal insulation materials (such as polystyrene particle concrete), damping and vibration reduction materials (such as rubber-modified concrete), and noise reduction materials (such as porous sound-absorbing materials) are mostly single-function materials. They require multiple layers to achieve composite functions, resulting in heavy structures, complex construction, and high costs. At the same time, traditional multi-functional materials often suffer from the problem of "imbalance between function and strength": materials with excellent thermal insulation and noise reduction performance (such as lightweight porous materials) lack mechanical strength (compressive strength is mostly below 1MPa), while high-strength materials (such as ultra-high performance concrete) lack thermal insulation and vibration reduction functions.

[0003] Furthermore, existing composite materials suffer from poor compatibility between fibers and the matrix, and uneven dispersion of damping components, leading to easy cracking and rapid performance degradation. Therefore, developing an integrated building material combining thermal insulation, damping, vibration reduction, noise reduction, and high strength is crucial to solving these problems. This invention was developed to address this need.

[0004] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the general background of this invention, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] This summary is provided to introduce, in a simplified form, some concepts that will be further described in the following detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0006] This invention provides a thermal insulation, damping, vibration reduction, and noise reduction composite material, characterized in that, by weight, it comprises: 30-40 parts of cementitious material, 8-13 parts of particle damping component, 13-20 parts of thermal insulation lightweight aggregate, 7-12 parts of damping modification component, 3-5 parts of reinforcing fiber, 10-15 parts of mineral admixture, 1.2-2.4 parts of additives, and 12-15 parts of water; wherein, The particle damping component comprises sand powder and ceramic microspheres; The thermal insulation lightweight aggregate comprises polystyrene particles and hollow glass microspheres; The damping modification component comprises a polymer emulsion and elastic rubber particles.

[0007] Preferably, the sand powder is construction solid waste sand with a particle size of 0.3-1 mm; the ceramic microspheres have a particle size of 0.5-2 mm; the sand powder comprises 5-8 parts, and the ceramic microspheres comprise 3-5 parts. Large-diameter ceramic microspheres form the main damping skeleton, while small-diameter solid waste sand fills the gaps, thereby improving the vibration energy dissipation efficiency and enhancing noise reduction.

[0008] Preferably, the polystyrene particles have a particle size of 1-3 mm, and the hollow glass microspheres have a particle size of 50-150 μm; the polystyrene particles comprise 8-12 parts, and the hollow glass microspheres comprise 5-8 parts. More preferably, the wall thickness of the hollow glass microspheres is 1-2 μm.

[0009] Preferably, the polymer emulsion is an epoxy-modified acrylic emulsion, and the elastic rubber particles are nitrile rubber powder; the epoxy-modified acrylic emulsion comprises 5-8 parts, and the nitrile rubber powder comprises 2-4 parts. Preferably, the elastic rubber particles can also be other elastic particles with a damping loss factor tanδ ≥ 0.15 and an interfacial bond strength with the cement matrix ≥ 1.0 MPa, such as styrene-butadiene rubber powder. The epoxy-modified acrylic emulsion coats the rubber powder to form a core-shell structure with a Tg (glass transition temperature) of -10°C, allowing the material to maintain high elasticity at room temperature; the tanδ ≥ 0.15 of the rubber powder synergistically increases the matrix loss factor to above 0.17 with the polymer emulsion.

[0010] Preferably, the reinforcing fiber comprises 2-3 parts basalt fiber and 1-2 parts carbon fiber.

[0011] Preferably, the mineral admixture comprises 5-7 parts of heavy calcium carbonate powder, 3-5 parts of talc powder, and 2-3 parts of mica powder.

[0012] Preferably, the cementitious material comprises 30-40 parts of 42.5 grade silicate cement, 5-8 parts of silica fume, and 10-15 parts of slag powder.

[0013] Explanation of the principle of this invention: Particle damping effect: When subjected to external impact vibration, the construction solid waste sand and ceramic microspheres collide and rub against each other in the pores of the matrix, converting vibration energy into heat energy dissipation, which significantly weakens the propagation of impact sound. Vibration and sound insulation synergy: Rubber powder and polymer emulsion form an elastic network that buffers vibration transmission, synergizing with particle damping effect; Insulation principle: Polystyrene particles and hollow glass microspheres form a closed pore structure, which reduces the thermal conductivity coefficient; Mechanical reinforcement: Basalt fiber inhibits early cracking, carbon fiber enhances toughness, and together with cementing materials, they form a three-dimensional reinforcement system to ensure that compressive and tensile strengths meet the standards.

[0014] The damping modifier is mixed with a portion of water and stirred to form a damping premix, which forms an elastic core-shell structure, allowing the polymer emulsion to uniformly coat the elastic rubber particles. The subsequent addition of fibers can reduce stress concentration at the fiber-matrix interface, thereby improving tensile strength.

[0015] The beneficial effects of this invention are: Breakthrough in vibration and sound insulation: For the first time, particle damping effect is introduced into cement-based materials, and the impact sound insulation of a 10mm thick material is as low as 55-60dB, which is 10-15dB better than traditional materials. Multifunctional integration: Simultaneously achieves high-efficiency thermal insulation, vibration and sound insulation, and high strength, meeting the requirements of sandwich floor slabs; Highly adaptable: It can be directly used as the core layer of sandwich sound insulation and heat insulation floor slabs, without the need for additional sound insulation structures, simplifying floor slab design.

[0016] This invention achieves a breakthrough improvement in the vibration and sound insulation performance of cement-based materials through the innovative principle of particle damping, providing a high-performance core material for sandwich sound insulation and heat insulation floor slabs, and has significant technological innovation and application value.

[0017] By combining the collision friction of solid waste sand / ceramic microspheres with the elastic network, the tanδ value was increased to over 0.15, reaching the level of polymer-based damping materials (such as butyl rubber tanδ≈0.2), which is a breakthrough that has never been achieved in this field.

[0018] This invention also provides a method for preparing a thermal insulation, damping, vibration reduction, and noise reduction composite material, comprising the following steps: S1: Mix the damping modification component with a portion of water and stir to form a damping premix; S2: Add cementitious materials, mineral admixtures, and thermal insulation lightweight aggregates into a mixer and mix and disperse them evenly to form a dry matrix; S3: Add the particle damping component to the uniformly dispersed dry material and continue stirring to initially disperse the particles; S4: Pour in the damping premix and the remaining water, and stir to form a uniform cement matrix; S5: Add the reinforcing fibers to the cement matrix and stir until homogeneous; S6: After pouring into the mold and compacting, cure and shape.

[0019] Preferably, it satisfies one or more of the following characteristics: The particle damping component comprises sand powder and ceramic microspheres, wherein the sand powder is construction solid waste sand with a particle size of 0.3-1 mm; the ceramic microspheres have a particle size of 0.5-2 mm; the sand powder comprises 5-8 parts and the ceramic microspheres comprise 3-5 parts. The thermal insulation lightweight aggregate comprises polystyrene particles and hollow glass microspheres. The particle size of the polystyrene particles is 1-3 mm, and the particle size of the hollow glass microspheres is 50-150 μm. The polystyrene particles are 8-12 parts in quantity, and the hollow glass microspheres are 5-8 parts in quantity. The damping modification component comprises a polymer emulsion and elastic rubber particles, wherein the polymer emulsion is an epoxy-modified acrylic emulsion and the elastic rubber particles are nitrile rubber powder; the epoxy-modified acrylic emulsion comprises 5-8 parts and the nitrile rubber powder comprises 2-4 parts. The reinforcing fiber comprises 2-3 parts basalt fiber and 1-2 parts carbon fiber; The mineral admixture includes 5-7 parts of heavy calcium carbonate powder, 3-5 parts of talc powder and 2-3 parts of mica powder; The cementitious material includes 30-40 parts of 42.5 grade silicate cement, 5-8 parts of silica fume, and 10-15 parts of slag powder.

[0020] Preferably, it satisfies one or more of the following characteristics: In step S1, the damping premix is ​​formed by stirring at 300-500 r / min for 5-8 minutes; In step S2, the dry material matrix is ​​formed by stirring at a low speed of 100-200 r / min for 3-5 minutes; In step S3, continue stirring for 2-3 minutes; In step S4, the cement matrix is ​​formed by stirring at a medium speed of 400-600 r / min for 8-10 minutes; In step S5, basalt fibers are first added and stirred at high speed of 800-1000 r / min for 2-3 minutes. Then carbon fibers are added and stirred at high speed for another 1-2 minutes to ensure that the reinforcing fibers are evenly distributed with the cement matrix.

[0021] In step S6, after pouring the concrete into the mold and compacting it, it is cured for 1 day at a temperature of 20-25℃ and a humidity of ≥90%. After demolding, it is cured for another 20-30 days to obtain the finished product.

[0022] This invention also provides an application of a thermal insulation, damping, vibration reduction, and noise reduction composite material, which is applied to building structures. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the use of thermal insulation, damping, vibration reduction, and noise reduction composite materials as sandwich floor slabs.

[0024] Figure 2 The drawings illustrate the spraying construction of thermal insulation, damping, vibration reduction, and noise reduction composite materials used as sandwich floor slabs. Detailed Implementation

[0025] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0026] Comparative Example 1: Lightweight insulating concrete (commercially available / general formula) Ingredients (parts by weight): P·O 42.5, cement 25, Grade I fly ash 12, vitrified microspheres (80~120 kg / m³) 3 ) 45, polystyrene particles (1~3mm) 8, hydroxypropyl methylcellulose 0.4, water-repellent agent 0.2, water-cement ratio 0.55.

[0027] Process: Premix all powders for 1 min → Add water and additives and stir for 2 min → Add vitrified microspheres and polystyrene particles at low speed for 1 min → Pour into mold and vibrate for 10 s → Natural curing for 7 days → Standard curing for 21 days.

[0028] performance: ρ=300~350 kg / m 3 Thermal conductivity ≤0.065 W / (m·K), 28-day compressive strength ≈0.8 MPa.

[0029] Comparative Example 2: Ultra-high performance concrete (UHPC, commercially available / general formula) Ingredients (parts by weight): P·II 52.5 cement 70, silica fume 20, quartz sand (0.1~0.5 mm) 110, quartz powder (≤45 μm) 30, steel fiber (13 mm long, 0.2 mm diameter, 2% volumetric admixture) 156 kg / m³ 3 , Polycarboxylate superplasticizer 2.2, Water 18.

[0030] Process: Mix dry materials at high speed for 3 min → Add water and water-reducing agent at medium speed for 2 min → Evenly sprinkle steel fibers at high speed for 2 min → Vibrate and vent after pouring → Cover with film for 48 h → Curing with hot water at 90 ℃ for 48 h.

[0031] Performance: ρ≈2400 kg / m 3 (28-day compressive strength ≥150 MPa).

[0032] Example 1: Raw materials: 35 parts silicate cement, 6 parts silica fume, 12 parts slag powder, 6 parts construction solid waste sand, 4 parts ceramic microspheres, 10 parts polystyrene particles, 6 parts hollow glass microspheres, 6 parts epoxy modified acrylic emulsion, 3 parts nitrile rubber powder, 2.5 parts basalt fiber, 1.5 parts carbon fiber, 6 parts heavy calcium carbonate powder, 4 parts talc powder, 2.5 parts mica powder, 1.5 parts water-reducing agent, 0.2 parts defoamer, 0.08 parts air-entraining agent, and 13 parts water.

[0033] Among them, the epoxy-modified acrylic emulsion has the following model number: 1) Hexion (USA) “EPI-REZ™ Resin 3510-W-60” (epoxy-acrylic hybrid emulsion, 60% solids content, Tg≈-10 ℃, available for direct purchase); 2) Domestic equivalent: "BA-201E Epoxy Modified Acrylic Emulsion" by BADFU Industrial Co., Ltd.

[0034] Furthermore, the silicate cement used is grade 42.5 silicate cement; the construction solid waste sand uses a particle size of 0.3mm, and the ceramic microspheres use a particle size of 0.5mm; the polystyrene particles use a particle size of 1mm, and the hollow glass microspheres use a particle size of 50μm with a wall thickness of 1μm; the basalt fiber uses a length of 6mm, and the carbon fiber uses a length of 13mm. Commercially available types of water-reducing agents, defoamers, and air-entraining agents can be used. For example, commercially available polycarboxylate water-reducing agents can be used, commercially available polyether-modified silicone oil can be used as defoamers, and commercially available sodium dodecyl sulfonate can be used as air-entraining agents.

[0035] Preparation: Epoxy-modified acrylic emulsion, nitrile rubber powder, and 50% water are mixed and stirred at 300 rpm for 8 minutes to form a damping premix. Cementitious materials, mineral admixtures, and lightweight insulating aggregates are added to a mixer and stirred at 100 rpm for 5 minutes to ensure uniform dispersion. Particulate damping components (construction solid waste sand and ceramic microspheres) are added and stirred at low speed for 2 minutes to initially disperse the particles. The damping premix and remaining water are poured in and stirred at 400 rpm for 10 minutes to form a uniform cementitious matrix. Basalt fibers are then added and stirred at 800 rpm for 3 minutes, followed by carbon fibers, and stirred at high speed for 1-2 minutes to ensure uniform fiber and particle distribution. After pouring into a mold and compacting, the mixture is cured at 20℃ and 90% humidity for 1 day, and then cured for another 27 days after demolding to obtain the finished product.

[0036] Example 2: Raw materials: 30 parts silicate cement, 5 parts silica fume, 10 parts slag powder, 5 parts construction solid waste sand, 3 parts ceramic microspheres, 8 parts polystyrene particles, 5 parts hollow glass microspheres, 5 parts epoxy modified acrylic emulsion, 2 parts nitrile rubber powder, 2 parts basalt fiber, 1 part carbon fiber, 5 parts heavy calcium carbonate powder, 3 parts talc powder, 2 parts mica powder, 1 part water-reducing agent, 0.1 part defoamer, 0.05 parts air-entraining agent, and 12 parts water.

[0037] Preparation: Epoxy-modified acrylic emulsion, nitrile rubber powder, and 50% water are mixed and stirred at 500 rpm for 5 minutes to form a damping premix. Cementitious materials, mineral admixtures, and lightweight insulating aggregates are added to a mixer and stirred at 200 rpm for 3 minutes to ensure uniform dispersion. Particulate damping components (construction solid waste sand and ceramic microspheres) are added and stirred at low speed for another 3 minutes to initially disperse the particles. The damping premix and remaining water are poured in and stirred at 600 rpm for 8 minutes to form a uniform cementitious matrix. Basalt fibers are then added and stirred at 1000 rpm for 2 minutes, followed by carbon fibers, and stirred at high speed for another minute to ensure uniform fiber and particle distribution. After pouring into a mold and compacting, the mixture is cured at 25℃ and 92% humidity for 1 day, and then cured for another 28 days after demolding to obtain the finished product.

[0038] 1) Hexion (USA) “EPI-REZ™ Resin 3510-W-60” (epoxy-acrylic hybrid emulsion, 60% solids content, Tg≈-10 ℃, available for direct purchase); 2) Domestic equivalent: "BA-201E Epoxy Modified Acrylic Emulsion" by BADFU Industrial Co., Ltd.

[0039] Furthermore, the silicate cement used is grade 42.5 silicate cement; the construction solid waste sand has a particle size of 1mm, and the ceramic microspheres have a particle size of 2mm; the polystyrene particles have a particle size of 3mm, and the hollow glass microspheres have a particle size of 150μm and a wall thickness of 2μm; the basalt fibers have a length of 12mm, and the carbon fibers have a length of 19mm. Commercially available water-reducing agents, defoamers, and air-entraining agents can be used. The selection is the same as in Example 1.

[0040] Example 3: Raw materials: 40 parts silicate cement, 8 parts silica fume, 15 parts slag powder, 8 parts construction solid waste sand, 5 parts ceramic microspheres, 12 parts polystyrene particles, 8 parts hollow glass microspheres, 8 parts epoxy modified acrylic emulsion, 4 parts nitrile rubber powder, 3 parts basalt fiber, 2 parts carbon fiber, 7 parts heavy calcium carbonate powder, 5 parts talc powder, 3 parts mica powder, 2 parts water-reducing agent, 0.3 parts defoamer, 0.1 parts air-entraining agent, and 15 parts water.

[0041] Preparation: Epoxy-modified acrylic emulsion, nitrile rubber powder, and 50% water are mixed and stirred at 400 rpm for 7 minutes to form a damping premix. Cementitious materials, mineral admixtures, and lightweight insulating aggregates are added to a mixer and stirred at 150 rpm for 4 minutes to ensure uniform dispersion. Particulate damping components (construction solid waste sand and ceramic microspheres) are added and stirred at low speed for 2.5 minutes to initially disperse the particles. The damping premix and remaining water are poured in and stirred at 500 rpm for 9 minutes to form a uniform cementitious matrix. Basalt fibers are then added and stirred at 900 rpm for 2.5 minutes, followed by carbon fibers, and stirred at high speed for 1.5 minutes to ensure uniform fiber and particle distribution. After pouring into a mold and compacting, the mixture is cured at 23℃ and ≥95% humidity for 1 day, and then cured for another 30 days after demolding to obtain the finished product.

[0042] 1) Hexion (USA) “EPI-REZ™ Resin 3510-W-60” (epoxy-acrylic hybrid emulsion, 60% solids content, Tg≈-10 ℃, available for direct purchase); 2) Domestic equivalent: "BA-201E Epoxy Modified Acrylic Emulsion" by BADFU Industrial Co., Ltd.

[0043] Furthermore, the silicate cement used is grade 42.5 silicate cement; the construction solid waste sand has a particle size of 0.7 mm, and the ceramic microspheres have a particle size of 1.2 mm; the polystyrene particles have a particle size of 2 mm, and the hollow glass microspheres have a particle size of 100 μm and a wall thickness of 1.5 μm; the basalt fibers have a length of 10 mm, and the carbon fibers have a length of 15 mm. Water-reducing agents, defoamers, and air-entraining agents can be conventional commercially available types. The selection is the same as in Example 1.

[0044] Example of effect: Standardized test methods and specimen dimensions:

[0045] Performance Comparison Summary Table:

[0046] Conclusion: Examples 1-3 achieved impact sound insulation performance of Ln,w≈55 dB with a thickness of 50 mm, which is about 20 dB and 23 dB lower than traditional lightweight insulating concrete and UHPC, respectively; the compressive strength is 5.5~8.1 MPa, which takes into account the load-bearing capacity; the thermal conductivity is <0.09 W / (m·K), which meets the insulation requirements; the loss factor is ≥0.17, which shows outstanding damping and vibration reduction effect; the freeze-thaw durability is close to that of UHPC and significantly better than that of lightweight insulating concrete, which verifies the effectiveness of the integrated design of "insulation-damping vibration reduction-noise reduction-high strength".

[0047] Application Examples: This embodiment provides an application of a thermal insulation, damping, vibration reduction, and noise reduction composite material. The thermal insulation, damping, vibration reduction, and noise reduction composite material described in embodiments 1-3 above is applied to a building structure as a structural layer of the main building. Specifically, as... Figure 1 As shown, it is used as the sandwich layer in sandwich sound-insulating and heat-insulating floor slabs or sandwich wall panels. During construction, as... Figure 2 As shown, the coating can be applied to the floor slab. By introducing functional particles to stimulate particle damping effect, combined with insulation components and reinforcing fibers, it achieves efficient sound insulation against impacts while meeting high strength and insulation performance requirements.

[0048] Furthermore, the present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A thermal insulation, damping, vibration reduction, and noise reduction composite material, characterized in that, Includes, by weight: The composition includes 30-40 parts cementitious material, 8-13 parts particle damping component, 13-20 parts thermal insulation lightweight aggregate, 7-12 parts damping modification component, 3-5 parts reinforcing fiber, 10-15 parts mineral admixture, 1.2-2.4 parts additives, and 12-15 parts water; among which, The particle damping component comprises sand powder and ceramic microspheres; The thermal insulation lightweight aggregate comprises polystyrene particles and hollow glass microspheres; The damping modification component comprises a polymer emulsion and elastic rubber particles.

2. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The sand powder is construction solid waste sand with a particle size of 0.3-1mm; the ceramic microspheres have a particle size of 0.5-2mm; the sand powder is 5-8 parts and the ceramic microspheres are 3-5 parts.

3. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The polystyrene particles have a particle size of 1-3 mm, and the hollow glass microspheres have a particle size of 50-150 μm; the polystyrene particles are in the form of 8-12 parts, and the hollow glass microspheres are in the form of 5-8 parts.

4. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The polymer emulsion is an epoxy-modified acrylic emulsion, and the elastic rubber particles are nitrile rubber powder; the epoxy-modified acrylic emulsion comprises 5-8 parts, and the nitrile rubber powder comprises 2-4 parts.

5. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The reinforcing fibers comprise 2-3 parts basalt fiber and 1-2 parts carbon fiber.

6. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The mineral admixture includes 5-7 parts of heavy calcium carbonate powder, 3-5 parts of talc powder, and 2-3 parts of mica powder.

7. The thermal insulation, damping, vibration reduction, and noise reduction composite material according to claim 1, characterized in that, The cementitious material includes 30-40 parts of 42.5 grade silicate cement, 5-8 parts of silica fume, and 10-15 parts of slag powder.

8. A method for preparing the thermal insulation, damping, vibration reduction, and noise reduction composite material according to any one of claims 1 to 7, characterized in that, Includes the following steps: S1: Mix the damping modification component with a portion of water and stir to form a damping premix; S2: Add cementitious materials, mineral admixtures, and thermal insulation lightweight aggregates into a mixer and mix and disperse them evenly to form a dry matrix; S3: Add the particle damping component to the uniformly dispersed dry material and continue stirring to initially disperse the particles; S4: Pour in the damping premix and the remaining water, and stir to form a uniform cement matrix; S5: Add the reinforcing fibers to the cement matrix and stir until homogeneous; S6: After pouring into the mold and compacting, cure and shape.

9. The preparation method according to claim 8, characterized in that, It meets one or more of the following characteristics: The particle damping component comprises sand powder and ceramic microspheres, wherein the sand powder is construction solid waste sand with a particle size of 0.3-1 mm; the ceramic microspheres have a particle size of 0.5-2 mm; the sand powder comprises 5-8 parts and the ceramic microspheres comprise 3-5 parts. The thermal insulation lightweight aggregate comprises polystyrene particles and hollow glass microspheres. The particle size of the polystyrene particles is 1-3 mm, and the particle size of the hollow glass microspheres is 50-150 μm. The polystyrene particles are 8-12 parts in quantity, and the hollow glass microspheres are 5-8 parts in quantity. The damping modification component comprises a polymer emulsion and elastic rubber particles, wherein the polymer emulsion is an epoxy-modified acrylic emulsion and the elastic rubber particles are nitrile rubber powder; the epoxy-modified acrylic emulsion comprises 5-8 parts and the nitrile rubber powder comprises 2-4 parts. The reinforcing fiber comprises 2-3 parts basalt fiber and 1-2 parts carbon fiber; The mineral admixture includes 5-7 parts of heavy calcium carbonate powder, 3-5 parts of talc powder and 2-3 parts of mica powder; The cementitious material includes 30-40 parts of 42.5 grade silicate cement, 5-8 parts of silica fume, and 10-15 parts of slag powder.

10. The preparation method according to claim 9, characterized in that, It meets one or more of the following characteristics: In step S1, the damping premix is ​​formed by stirring at 300-500 r / min for 5-8 minutes; In step S2, the dry material matrix is ​​formed by stirring at a low speed of 100-200 r / min for 3-5 minutes; In step S3, continue stirring for 2-3 minutes; In step S4, the cement matrix is ​​formed by stirring at a medium speed of 400-600 r / min for 8-10 minutes; In step S5, basalt fiber is added first, and the mixture is stirred at a high speed of 800-1000 r / min for 2-3 minutes. Then carbon fiber is added, and the mixture is stirred at a high speed for 1-2 minutes to ensure that the reinforcing fiber is evenly distributed with the cement matrix. In step S6, after pouring the concrete into the mold and compacting it, it is cured for 1 day at a temperature of 20-25℃ and a humidity of ≥90%. After demolding, it is cured for another 20-30 days to obtain the finished product.

11. An application of a thermal insulation, damping, vibration reduction, and noise reduction composite material, characterized in that, The thermal insulation, damping, vibration reduction and noise reduction composite material according to any one of claims 1 to 7 is applied to building structures.

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