Formwork-free multi-layer composite structure self-heat-preservation sound-insulation light inner wall and preparation method thereof

Abstract

The invention relates to the field of building materials, in particular to a template-free multi-layer composite structure self-heat-preservation sound-insulation light inner wall which comprises a light foam concrete layer, a heat-preservation sound-insulation layer, a waterproof layer and a decorative layer. The light foam concrete layer is composed of cement, fly ash, hydrogen peroxide, polyphenyl particles, glass fibers, crushed crude pearlite, vermiculite powder, calcium stearate, expanded graphite, magnesium aluminum hydroxide, magnesium calcium lignosulphonate, ammonium molybdate pentaerythritol ester and titanate melamine salt. According to the contrast test, the construction efficiency, the light weight effect, the heat preservation performance, the sound insulation performance, the waterproof performance and the like of the building interior wall are remarkably superior to those of a traditional interior wall technology, and the building interior wall has wide application prospects and market value.

Description

Technical Field

[0001] The invention relates to the technical field of building materials, in particular to a template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall and a preparation method thereof. Background Art

[0002] In modern buildings, the function of interior walls is no longer limited to space separation, and the requirements for their thermal insulation, sound insulation, light weight and other properties are increasing. Traditional interior wall structures often have deficiencies in these aspects, such as poor thermal insulation leading to increased energy consumption, poor sound insulation affecting living comfort, and heavy weight increasing building loads. In addition, traditional construction methods are complex and inefficient, and it is difficult to meet the requirements of modern buildings for rapid construction and high quality.

[0003] Traditional interior wall materials have limited thermal insulation properties and cannot effectively block the exchange of indoor and outdoor heat, making the building less than ideal in terms of winter warmth and summer insulation, thereby increasing the use of air conditioning and heating equipment and causing energy waste.

[0004] Indoor noise affects people's quality of life and work, but the sound insulation performance of traditional interior walls often cannot meet people's needs for a quiet environment. Sound can easily propagate through the walls, leading to privacy leaks and noise interference.

[0005] Traditional interior wall materials are usually dense, resulting in excessive wall weight, which not only increases the structural burden of the building, but also brings inconvenience during transportation and construction.

[0006] Traditional interior wall construction methods usually require cumbersome procedures and a lot of manual work. The use of formwork increases costs and construction time, while also limiting construction flexibility and speed. Summary of the invention

[0007] The present invention aims to provide a multi-layer composite structure interior wall which does not require a template, is easy to construct, has excellent thermal insulation and sound insulation properties, and is lightweight, and a preparation method thereof, so as to solve the above-mentioned problems existing in traditional interior walls.

[0008] The wall structure is composed of: a lightweight foam concrete layer consisting of cement, fly ash, hydrogen peroxide, polystyrene particles, glass fiber, perlite powder, vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide (AlMg(OH)4), lignin calcium magnesium sulfonate (Lignosulfonate Calcium Magnesium), ammonium pentaerythritol molybdate (AMPE) and titanate melamine salt (TMS). The proportions of each component are as follows: fly ash accounts for 10-20 parts by weight of cement, the volume of hydrogen peroxide accounts for 3-8 parts by weight of the total volume of the slurry, polystyrene particles account for 15-25 parts by weight of the total volume, glass fiber accounts for 0.2-0.5 parts by weight of concrete, perlite powder accounts for 8-12 parts by weight of concrete, vermiculite powder accounts for 6-10 parts by weight of concrete, calcium stearate accounts for 1-3 parts by weight of concrete, expanded graphite accounts for 2-5 parts by weight of concrete, aluminum magnesium hydroxide (AlMg(OH)4) accounts for 3-6 parts by weight of concrete, lignin calcium magnesium sulfonate (Lignosulfonate Calcium Magnesium) accounts for 1.5-3 parts by weight of concrete, ammonium pentaerythritol molybdate (AMPE) accounts for 1-2 parts by weight of concrete, and titanate melamine salt (TMS) accounts for 0.5-1.5 parts by weight of concrete. Thermal insulation layer: The composite structure of aerogel felt and centrifugal glass wool board is adopted to significantly improve the thermal insulation and sound insulation effect. Waterproof layer: It is composed of polymer waterproof roll material to effectively prevent water penetration. Decorative layer: Wallpaper, paint or wooden veneer can be selected to meet the decoration needs.

[0009] The wall preparation process is as follows: prepare the raw materials required for the above-mentioned layers and ensure that the material quality meets the requirements. Base treatment: clean the construction base to ensure that the base is flat, clean, free of oil and loose materials. Material mixing: put cement, fly ash, polystyrene particles, glass fiber, perlite powder, vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide (AlMg(OH)4), lignin calcium magnesium sulfonate (Lignosulfonate Calcium Magnesium), ammonium pentaerythritol molybdate (AMPE) and titanate melamine salt (TMS) into a mixer according to the designed proportion, add appropriate amount of water and hydrogen peroxide, stir well and make lightweight foam concrete. Casting construction: cast directly on the treated base without formwork, and rely on the self-leveling performance of concrete to fill and shape. Material laying: after the lightweight foam concrete layer is initially set, lay the aerogel felt on its surface, and then install the centrifugal glass wool board. Material laying: lay the polymer waterproof membrane on the thermal insulation layer. Surface treatment: According to the selected decorative layer material, carry out corresponding construction treatment, such as pasting wallpaper, painting or installing wooden veneer panels.

[0010] (III) Beneficial effects

[0011] The construction method without formwork greatly simplifies the construction process and reduces construction time and labor costs. The self-leveling performance of lightweight foam concrete ensures the stability and consistency of construction quality. By adopting lightweight materials and optimizing the mix ratio, the deadweight of the wall is effectively reduced, while ensuring sufficient strength and stability, reducing the load on the building. The thermal insulation and sound insulation layer composed of aerogel felt and centrifugal glass wool board has excellent thermal insulation and sound insulation performance, effectively blocking the transmission of heat and sound. The components such as expanded graphite, aluminum magnesium hydroxide (AlMg(OH)4), lignin sulfonate calcium magnesium (Lignosulfonate Calcium Magnesium), ammonium molybdate pentaerythritol ester (AMPE) and titanate melamine salt (TMS) in the lightweight foam concrete layer also help to improve the thermal insulation and sound insulation effect of the wall. Among them, ammonium molybdate can promote carbonization during combustion, and pentaerythritol ester decomposes and absorbs heat; titanate can improve the compatibility of materials, and melamine plays a gas dilution and heat absorption role. The waterproof layer composed of polymer waterproof membrane can effectively prevent water penetration, protect the internal structure of the wall, and extend the service life of the wall. A variety of decorative layer materials are available to meet different decorative styles and personalized needs, and enhance the indoor aesthetics. DETAILED DESCRIPTION

[0012] Embodiment 1

[0013] Project Overview: Indoor partition wall project of an office building, with a total area of ​​about 5,000 square meters. Material preparation, lightweight foam concrete layer materials: PO 42.5 cement, Class I fly ash, hydrogen peroxide, polystyrene particles with a particle size of 3-5mm, glass fiber with a length of 6-12mm, 200 mesh perlite powder, 200 mesh vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide (AlMg(OH)4), lignin sulfonate calcium magnesium (Lignosulfonate Calcium Magnesium), ammonium molybdate pentaerythritol ester (AMPE) and titanate melamine salt (TMS). The proportion of each component is: fly ash accounts for 15 parts of cement mass, the volume of hydrogen peroxide accounts for 5 parts of the total volume of slurry, polystyrene particles account for 20 parts of the total volume, glass fiber accounts for 0.3 parts of concrete volume, perlite powder accounts for 10 parts of concrete mass, vermiculite powder accounts for 8 parts of concrete mass, calcium stearate accounts for 2 parts of concrete mass, expanded graphite accounts for 3 parts of concrete mass, aluminum magnesium hydroxide (AlMg(OH)4) accounts for 4 parts of concrete mass, lignin sulfonate calcium magnesium (Lignosulfonate Calcium Magnesium) accounts for 2 parts of concrete mass, ammonium molybdate pentaerythritol ester (AMPE) accounts for 1.5 parts of concrete mass, and titanate melamine salt (TMS) accounts for 1 part of concrete mass. Insulation and sound insulation layer materials: aerogel felt, thickness of 20mm, centrifugal glass wool board, thickness of 50mm. Waterproof layer materials: polymer waterproof membrane, thickness of 1.5mm. Decorative layer materials: wallpaper. Construction process Construction preparation: clean the base, measure and lay out, and prepare the materials and equipment required for construction. Lightweight foam concrete layer preparation: Mix lightweight foam concrete according to the designed proportion and pour directly with a thickness of 100mm. Insulation and sound insulation layer construction: After the lightweight foam concrete layer is initially solidified,

[0014] Lay aerogel felt and install centrifugal glass wool board. Waterproof layer construction: Lay polymer waterproof membrane on the thermal insulation layer. Decorative layer construction: Paste wallpaper.

[0015] Embodiment 2

[0016] The indoor partition wall project of a residential area has a total area of ​​about 7,000 square meters. Lightweight foam concrete layer materials: PO 52.5 cement, grade II fly ash, hydrogen peroxide, polystyrene particles with a particle size of 2-4mm, glass fiber with a length of 8-15mm, 300 mesh perlite powder, 300 mesh vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide (AlMg(OH)4), lignin calcium magnesium sulfonate (Lignosulfonate Calcium Magnesium), ammonium molybdate pentaerythritol ester (AMPE) and titanate melamine salt (TMS). The proportion of each component is as follows: fly ash accounts for 18 parts of cement mass, the volume of hydrogen peroxide accounts for 6 parts of the total volume of slurry, polystyrene particles account for 22 parts of the total volume, glass fiber accounts for 0.4 parts of concrete volume, perlite powder accounts for 11 parts of concrete mass, vermiculite powder accounts for 7 parts of concrete mass, calcium stearate accounts for 2.5 parts of concrete mass, expanded graphite accounts for 4 parts of concrete mass, aluminum hydroxide magnesium (AlMg(OH)4) accounts for 5 parts of concrete mass, lignin sulfonate calcium magnesium (LignosulfonateCalcium Magnesium) accounts for 2.5 parts of concrete mass, ammonium molybdate pentaerythritol ester (AMPE) accounts for 1.8 parts of concrete mass, and titanate melamine salt (TMS) accounts for 1.2 parts of concrete mass. Thermal insulation layer material: aerogel felt, thickness of 25mm, centrifugal glass wool board, thickness of 60mm. Waterproof layer material: polymer waterproof membrane, thickness of 2mm. Decorative layer material: coating.

[0017] Construction process: Construction preparation: Same as Example 1. Preparation of lightweight foam concrete layer: Mix lightweight foam concrete according to the designed proportion and cast directly with a thickness of 120 mm. Construction of thermal insulation and sound insulation layer: After the lightweight foam concrete layer is initially solidified, aerogel felt is laid and centrifugal glass wool board is installed. Construction of waterproof layer: Lay polymer waterproof membrane on the thermal insulation and sound insulation layer. Construction of decorative layer: Apply paint.

[0018] In order to verify the advantages of the present invention, a comparative test with the existing traditional interior wall technology was conducted, and the results are as follows:

[0019] Table 1. Comparative test of existing technology

[0020]

[0021] Through the above comparative tests, it can be seen that the present invention is significantly superior to traditional interior wall technology in terms of construction efficiency, lightweight effect, thermal insulation performance, sound insulation performance and waterproof performance, and has broad application prospects and market value. In summary, the template-free multi-layer composite structure self-insulating sound insulation lightweight interior wall and its preparation method of the present invention have the advantages of convenient construction, light weight and high strength, excellent thermal insulation, sound insulation and waterproof performance, and can effectively improve the quality and performance of the interior wall of the building.

Claims

1. A template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall, characterized in that: The invention comprises a lightweight foam concrete layer, a heat-insulating and sound-insulating layer, a waterproof layer and a decorative layer. The lightweight foam concrete layer is composed of cement, fly ash, hydrogen peroxide, polystyrene particles, glass fiber, perlite powder, vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide, calcium magnesium lignin sulfonate, ammonium pentaerythritol molybdate and titanate melamine salt.

2. The template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall according to claim 1 is characterized in that: In the lightweight foam concrete layer, fly ash accounts for 10-20 parts by weight of cement, the volume of hydrogen peroxide accounts for 3-8 parts by weight of the total volume of the slurry, the polystyrene particles account for 15-25 parts by weight of the total volume, the glass fiber accounts for 0.2-0.5 parts by weight of the concrete, the perlite powder accounts for 8-12 parts by weight of the concrete, the vermiculite powder accounts for 6-10 parts by weight of the concrete, the calcium stearate accounts for 1-3 parts by weight of the concrete, the expanded graphite accounts for 2-5 parts by weight of the concrete, the aluminum hydroxide magnesium accounts for 3-6 parts by weight of the concrete, the calcium magnesium lignin sulfonate accounts for 1.5-3 parts by weight of the concrete, the ammonium molybdate pentaerythritol ester accounts for 1-2 parts by weight of the concrete, and the titanate melamine salt accounts for 0.5-1.5 parts by weight of the concrete.

3. The template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall according to claim 1 is characterized in that: The heat-insulating and sound-insulating layer adopts a composite structure of aerogel felt and centrifugal glass wool board.

4. The template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall according to claim 1, characterized in that: The waterproof layer is composed of a polymer waterproof coiled material.

5. The template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall according to claim 1 is characterized in that: The decorative layer is selected from wallpaper, paint or wooden veneer.

6. A method for preparing a template-free multi-layer composite structure self-insulating and sound-insulating lightweight interior wall according to any one of claims 1 to 5, characterized in that: The following steps are included: construction preparation, including material preparation and base treatment; lightweight foam concrete layer preparation, including material mixing and pouring construction; thermal insulation and sound insulation layer construction, including material laying; waterproof layer construction, including material paving; decorative layer construction, including surface treatment.

7. The preparation method according to claim 6, characterized in that: In the step of preparing the lightweight foam concrete layer, the material mixing is to put cement, fly ash, hydrogen peroxide, polystyrene particles, glass fiber, perlite powder, vermiculite powder, calcium stearate, expanded graphite, aluminum magnesium hydroxide, calcium magnesium lignin sulfonate, ammonium pentaerythritol molybdate and titanate melamine salt into a mixer according to the designed proportion, add appropriate amount of water and stir well.

8. The preparation method according to claim 6, characterized in that: The base treatment of the construction preparation is to clean the construction base to ensure that the base is flat, clean, and free of oil stains and loose objects.

9. The preparation method according to claim 6, characterized in that: During the construction of the thermal insulation and sound insulation layer, after the lightweight foam concrete layer is initially solidified, the aerogel felt is laid on the surface thereof, and then the centrifugal glass wool board is installed.

10. The preparation method according to claim 6, characterized in that: During the construction of the decorative layer, corresponding construction treatment is performed according to the selected decorative layer material, such as pasting wallpaper, applying paint or installing wooden decorative panels.

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