Lightweight thermal insulation plastering mortar and preparation method thereof
By preparing lightweight thermal insulation plastering mortar, combined with cement, fly ash and foam particles, the problems of poor fire resistance of organic materials and large weight of traditional materials are solved, and the effect of lightweight, good thermal insulation and easy construction is achieved.
Patent Information
- Application Number
- CN202411875467.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-07-08
AI Technical Summary
The existing organic insulation materials have poor fire resistance and flame retardant effects, are easy to burn, and have poor bonding properties with the wall; traditional inorganic insulation materials have a significant capacity and are average insulating properties.
The component design of lightweight insulation and thermally insulated plaster mortar, including cement, fly ash, foam particles and cellulose ether, is prepared by controlling specific proportions and stirring time.
It has achieved lightweight thermal insulation and heat insulation effect, strong adhesion to the wall, convenient construction, improved the fire resistance and flame retardant effect of organic materials, and overcomes the insufficient weight and heat insulation performance of traditional materials.
Smart Images
Figure BDA0005196761050000071
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of building mortar, and in particular, to a lightweight thermal insulation plastering mortar and a preparation method thereof. Background Art
[0002] In recent years, building energy conservation has received national attention, and corresponding energy-saving materials and technologies have developed rapidly. At present, there are two main building energy-saving thermal insulation materials, which are divided into organic thermal insulation materials and inorganic thermal insulation materials. Commonly used organic thermal insulation materials in the market mainly include EPS boards, XPS boards, and polystyrene particle mortars. They have good thermal insulation performance, but poor fire resistance and flame retardant effects, and are easy to burn. Once a fire occurs, the organic thermal insulation materials melt, and the exterior wall decoration materials will fall off, with very poor safety performance. In addition, their aging resistance is poor, the thermal insulation life is short, and the bonding property between the organic thermal insulation materials and the wall is poor. A series of processes such as applying a layer of binder and nailing are required during construction, and the process is complex. Traditional inorganic thermal insulation materials have a high fire protection level, good flame retardancy, and good compatibility with the wall, and can achieve the same service life as the building for thermal insulation. However, their bulk density is relatively large, and the thermal insulation is average. Summary of the Invention
[0003] To overcome the problems that both organic thermal insulation materials and traditional inorganic thermal insulation materials in the prior art are difficult to meet the requirements of existing buildings for fire protection, thermal insulation, and durability, the present invention provides a lightweight thermal insulation plastering mortar, which includes the following components by weight: 22-28 parts of cement, 2-10 parts of fly ash, 7-13 parts of foam particles, 0.009-0.024 parts of cellulose ether, and 16-22 parts of water.
[0004] Preferably, the cement is one or more of composite portland cement, ordinary portland cement, and masonry cement.
[0005] Preferably, the fly ash is one or more of Class F Grade II fly ash or Class C Grade II fly ash.
[0006] Preferably, the foam particles are one or more of foam glass particles or foam ceramic particles.
[0007] Preferably, the particle size of the foam particles is 1.25-4.75 mm.
[0008] Preferably, the cellulose ether is one or more of hydroxymethyl cellulose ether or hydroxypropyl cellulose ether.
[0009] In addition, the present invention also provides a preparation method of a lightweight thermal insulation plastering mortar: first, add cement, fly ash, foam particles, and cellulose ether to a stirring environment in sequence and stir for 2-5 minutes, and then add water and stir for 5-15 minutes.
[0010] Advantageous Effects:
[0011] The beneficial effects of the technical solution of the present invention are as follows: The present invention provides a lightweight thermal insulation plastering mortar and a preparation method thereof. This mortar has the characteristics of low bulk density, good thermal insulation effect, good adhesion to the wall, and strong durability. It is also convenient for construction operations and has strong engineering practicability, improving the defects of poor fire resistance and flame retardancy and easy combustion of organic thermal insulation materials, as well as the large bulk density and general thermal insulation of traditional thermal insulation materials. Specific Embodiments
[0012] To make the purpose, technical solution, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Therefore, the following detailed description of the provided embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.
[0013] This embodiment provides a lightweight thermal insulation plastering mortar and a preparation method thereof. This mortar has the characteristics of low bulk density, good thermal insulation effect, good adhesion to the wall, and strong durability. It is also convenient for construction operations and has strong engineering practicability, improving the defects of poor fire resistance and flame retardancy and easy combustion of organic thermal insulation materials, as well as the large bulk density and general thermal insulation of traditional thermal insulation materials. The specific embodiments are as follows:
[0014] A lightweight thermal insulation plastering mortar, by weight, includes the following components: 22 - 28 parts of cement, 2 - 10 parts of fly ash, 7 - 13 parts of foam particles, 0.009 - 0.024 parts of cellulose ether, and 16 - 22 parts of water.
[0015] Specifically, the cement is one or more of composite portland cement, ordinary portland cement, and masonry cement.
[0016] Specifically, the fly ash is one or more of Class F Grade II fly ash or Class C Grade II fly ash.
[0017] Specifically, the foam particles are one or more of foam glass particles or foam ceramic particles.
[0018] Specifically, the particle size of the foam particles is 1.25 - 4.75 mm.
[0019] Specifically, the cellulose ether is one or more of hydroxymethyl cellulose ether or hydroxypropyl cellulose ether.
[0020] In addition, the present invention also provides a method for preparing a lightweight thermal insulation plaster mortar: firstly, cement, fly ash, foam particles and cellulose ether are sequentially added into a stirring environment and stirred for 2-5 minutes, and then water is added and stirred for 5-15 minutes.
[0021] The present invention will be further explained below in conjunction with specific embodiments and comparative examples.
[0022] Example 1
[0023] The thermal insulation plaster mortar in this embodiment includes the following components by weight: 22 parts of ordinary Portland cement, 2 parts of Class F II fly ash, 7 parts of foam glass particles, 0.009 parts of hydroxymethyl cellulose ether and 16 parts of water.
[0024] The particle size of the foam glass particles in this component is 1.25 mm.
[0025] In this embodiment, the thermal insulation plaster mortar is prepared by stirring and mixing 22 parts of ordinary Portland cement, 2 parts of Class F II fly ash, 7 parts of foam glass particles, and 0.009 parts of hydroxymethyl cellulose ether for 2 minutes, and then adding 16 parts of water and stirring and mixing for 5 minutes to obtain the thermal insulation plaster mortar.
[0026] Example 2
[0027] The thermal insulation plaster mortar in this embodiment includes the following components by weight: 25 parts of ordinary Portland cement, 6 parts of Class F II fly ash, 10 parts of foam glass particles, 0.017 parts of hydroxymethyl cellulose ether and 19 parts of water.
[0028] The particle size of the foam glass particles in this component is 3 mm.
[0029] In this embodiment, the thermal insulation plaster mortar is prepared by stirring and mixing 25 parts of ordinary Portland cement, 6 parts of Class F II fly ash, 10 parts of foam glass particles, and 0.017 parts of hydroxymethyl cellulose ether for 4 minutes, and then adding 19 parts of water and stirring and mixing for 10 minutes to obtain the thermal insulation plaster mortar.
[0030] Example 3
[0031] The thermal insulation plaster mortar in this embodiment includes the following components by weight: 28 parts of ordinary Portland cement, 10 parts of Class F II fly ash, 13 parts of foam glass particles, 0.024 parts of hydroxymethyl cellulose ether and 22 parts of water.
[0032] The particle size of the foam glass particles in this component is 4.75 mm.
[0033] In this embodiment, the heat-insulating plaster mortar is prepared by mixing 28 parts of ordinary Portland cement, 10 parts of Class F Grade II fly ash, 13 parts of foam glass particles, and 0.024 part of hydroxymethyl cellulose ether for 5 minutes, and then adding 12 parts of water and mixing for 15 minutes to obtain the heat-insulating plaster mortar.
[0034] Example 4
[0035] In this embodiment, the heat-insulating plaster mortar, by weight, comprises the following components: 25 parts of composite Portland cement, 6 parts of Class C Grade II fly ash, 10 parts of foam ceramic particles, 0.017 part of hydroxypropyl cellulose ether, and 19 parts of water.
[0036] The particle size of the foam ceramic particles in this component is 3 mm.
[0037] The preparation of the heat-insulating plaster mortar in this embodiment is the same as that in Example 2.
[0038] Example 5
[0039] In this embodiment, the heat-insulating plaster mortar, by weight, comprises the following components: 25 parts of masonry cement, 6 parts of Class C Grade II fly ash, 10 parts of foam ceramic particles, 0.017 part of hydroxypropyl cellulose ether, and 19 parts of water.
[0040] The particle size of the foam ceramic particles in this component is 3 mm.
[0041] The preparation of the heat-insulating plaster mortar in this embodiment is the same as that in Example 2.
[0042] Comparative Example 1
[0043] In this comparative example, the heat-insulating plaster mortar, by weight, comprises the following components: 20 parts of ordinary Portland cement, 1 part of Class F Grade II fly ash, 6 parts of foam glass particles, 0.007 part of hydroxymethyl cellulose ether, and 15 parts of water.
[0044] The particle size of the foam glass particles in this component is 3 mm.
[0045] The preparation of the heat-insulating plaster mortar in this comparative example is the same as that in Example 2.
[0046] Comparative Example 2
[0047] In this comparative example, the heat-insulating plaster mortar, by weight, comprises the following components: 30 parts of ordinary Portland cement, 12 parts of Class F Grade II fly ash, 14 parts of foam glass particles, 0.025 part of hydroxymethyl cellulose ether, and 23 parts of water.
[0048] The particle size of the foam glass particles in this component is 3 mm.
[0049] In this comparative example, the production of the thermal insulation plastering mortar is the same as that in Example 2.
[0050] Comparative Example 3
[0051] In this comparative example, the thermal insulation plastering mortar, by weight, contains the same components and in the same amounts as in Example 2.
[0052] The particle size of the foam glass particles in this component is 5 mm.
[0053] In this comparative example, the production of the thermal insulation plastering mortar is the same as that in Example 2.
[0054] Comparative Example 4
[0055] In this comparative example, the thermal insulation plastering mortar, by weight, contains the same components and in the same amounts as in Example 2.
[0056] The particle size of the foam glass particles in this component is 1.0 mm.
[0057] In this comparative example, the production of the thermal insulation plastering mortar is the same as that in Example 2.
[0058] Comparative Example 5
[0059] In this comparative example, the thermal insulation plastering mortar, by weight, contains the same components and in the same amounts as in Example 2
[0060] The particle size of the foam glass particles in this component is 3 mm.
[0061] In this comparative example, the production of the thermal insulation plastering mortar is as follows: 25 parts of ordinary Portland cement, 6 parts of Class F Grade II fly ash, 10 parts of foam glass particles, and 0.017 part of hydroxymethyl cellulose ether are stirred and mixed for 1 min, and then 19 parts of water are added and stirred and mixed for 3 min to obtain the thermal insulation plastering mortar.
[0062] Comparative Example 6
[0063] In this comparative example, the thermal insulation plastering mortar, by weight, contains the same components and in the same amounts as in Example 2
[0064] The particle size of the foam glass particles in this component is 3 mm.
[0065] In this comparative example, the production of the thermal insulation plastering mortar is as follows: 25 parts of ordinary Portland cement, 6 parts of Class F Grade II fly ash, 10 parts of foam glass particles, and 0.017 part of hydroxymethyl cellulose ether are stirred and mixed for 7 min, and then 19 parts of water are added and stirred and mixed for 18 min to obtain the thermal insulation plastering mortar.
[0066] Subsequently, the thermal insulation plastering mortar prepared in the above examples and comparative examples was subjected to performance tests in accordance with the "Test Methods for Basic Properties of Building Mortars" (GB / T 25176-2010), and the test results are shown in Table 1 below.
[0067] Table 1 Performance test results of lightweight thermal insulation plastering mortar
[0068]
[0069] According to the test results of the above Examples 1-5, it can be seen that the thermal insulation plastering mortar prepared within the range given in the present invention has good strength and thermal insulation performance; and by combining the test results of Example 2 and Comparative Examples 1-6, it can be seen that too little or too much of each component in the thermal insulation plastering mortar, the particle size of the foam particles in the components, and the mixing time during production will all affect the strength and thermal insulation performance of the mortar.
[0070] In summary, the present invention provides a lightweight thermal insulation plastering mortar and a preparation method thereof. The mortar has the characteristics of small bulk density, good thermal insulation effect, good adhesion to the wall, and strong durability, and is convenient for construction operation, with strong engineering practicability, and improves the defects of poor fire resistance and flame retardant effect, easy combustion of organic thermal insulation materials, and large bulk density and general thermal insulation of traditional thermal insulation materials.
[0071] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A lightweight thermal insulation plastering mortar, characterized in that, By weight, it includes the following components: 22 to 28 parts of cement, 2 to 10 parts of fly ash, 7 to 13 parts of foam particles, 0.009 to 0.024 parts of cellulose ether, and 16 - 22 parts of water.
2. The lightweight thermal insulation plastering mortar according to claim 1, characterized in that, The cement is one or more of composite Portland cement, ordinary Portland cement, and masonry cement.
3. A lightweight thermal insulation plastering mortar according to claim 1, characterized in that, The fly ash is one or more of Class F Grade II fly ash or Class C Grade II fly ash.
4. A lightweight thermal insulation plastering mortar according to claim 1, characterized in that The foam particles are one or more of foam glass particles or foam ceramic particles.
5. A lightweight thermal insulation plastering mortar according to claim 1, characterized in that, The particle size of the foam particles is 1.25 - 4.75 mm.
6. A lightweight thermal insulation plastering mortar according to claim 1, characterized in that, The cellulose ether is one or more of hydroxy methyl cellulose ether or hydroxypropyl cellulose ether.
7. The preparation method of the lightweight thermal insulation plastering mortar according to any one of claims 1-6, characterized in that First, add the cement, the fly ash, the foam particles, and the cellulose ether to the stirring environment in sequence and stir for 2 - 5 min, and then add the water and stir for 5 - 15 min.