Fiber-reinforced cement mortar composite vacuum insulation board and preparation method thereof
A technology of cement mortar and vacuum insulation, applied in thermal insulation, cement mixing devices, clay preparation devices, etc., can solve the problems of high cost and low heat resistance, and achieve the effects of light weight, good pressure resistance and improved utilization rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0047] A preparation method of the fiber-reinforced cement mortar composite vacuum insulation board, comprising the following steps:
[0048] (1) After weighing the components of the mixed slurry, mix them thoroughly to obtain a mixture;
[0049] (2) Mix the mixture obtained in step (1) with water and put it into a blender to stir for 10 minutes to ensure thorough mixing, wherein the mass ratio of water to the mixture of the above components is 1: 2;
[0050] (3) Lay the sealing layer flat, and then take a mold of the specified size and press it on it, spread a layer of 1-20mm thick fiber reinforced cement mortar mixed slurry, so that the mixed slurry will seal the sealing layer in the mold Covering, pressing for 8-24 hours, drying for 6-24 hours, and demoulding to form a high-strength gas barrier film with a protective layer;
[0051] (4) The high-strength gas barrier film with a protective layer is wrapped around the core material, and is vacuum-packed with the core materia...
Embodiment 1
[0054] A fiber-reinforced cement mortar composite vacuum heat insulation board, comprising the following ingredients in the fiber-reinforced cement mortar mass ratio: 20% cement, 50% quartz sand, 19% chopped fiber, 5% heavy calcium, and 5% rubber powder %, admixture 0.1%, superplasticizer 0.2%, retarder 0.7%.
[0055] After the above-mentioned raw materials are accurately measured, put them into a dry powder mortar mixer, and after mechanical mixing, mix with water and continue to stir for 10 minutes to ensure thorough mixing. The mass ratio of water to the mixture of the above components is 1: 2.
[0056] Under the condition of this ratio, the fiber-reinforced cement mortar slurry with a thickness of 10mm is compounded on the two surfaces of the vacuum insulation panel, and its performance is as follows: the compressive strength is 0.35MPa, and the density of the composite panel is 510kg / m 3 , the flexural strength is 0.33 MPa, and the thermal conductivity is 0.027W / (m·K).
Embodiment 2
[0058] A fiber-reinforced cement mortar composite vacuum heat insulation board, comprising the following ingredients in the fiber-reinforced cement mortar mass ratio: 35% cement, 40% quartz sand, 10% chopped fiber, 7% heavy calcium, and 6% rubber powder %, admixture 1%, superplasticizer 0.3%, retarder 0.7%.
[0059] After the above-mentioned raw materials are accurately measured, put them into a dry powder mortar mixer, and after mechanical mixing, mix with water and continue to stir for 10 minutes to ensure thorough mixing. The mass ratio of water to the mixture of the above components is 1: 2.
[0060] Under the conditions of this ratio, the 10mm thick fiber-reinforced cement mortar slurry is compounded on the two surfaces of the vacuum insulation panel, and its properties are as follows: the compressive strength is 0.40MPa, and the density of the composite panel is 450kg / m 3 , the flexural strength is 0.37 MPa, and the thermal conductivity is 0.026W / (m·K).
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle size (mesh) | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More