What is a cement blanket?
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The structure of cement blanket generally consists of upper, middle and lower layers. The main components of cement blanket include special cement and various geofiber skeletons. The upper and lower layers are made of polypropylene fiber woven fabric, and the middle layer is made of high-strength cement-based composite material. Its specifications and weight will vary depending on the manufacturer and product model. Common cement blanket weight specifications are 6 kg, 8 kg, 10 kg, 12 kg, 15 kg, 20 kg, etc., and the thickness range is generally between 8 mm and between 42mm.
Compared with geomembranes, expanded soil waterproof blankets and other anti-seepage materials, cement blankets have the following advantages:
1. Higher strength: Cement blanket has better compressive and bending strength and can better withstand external forces.
2. Better integrity: After laying, it forms a whole and is not prone to local damage or leakage.
3. Convenient construction: it can be laid directly, reducing complex processes such as splicing.
4. Strong durability: more resistant to aging and environmental erosion.
5. Good fire resistance: It has certain fire resistance.
Cement blankets also have some disadvantages compared to geotechnical anti-seepage materials such as geomembranes and expanded soil waterproof blankets:
1. Poor flexibility: Compared with materials such as geomembranes, cement blankets are relatively less flexible and may have poor adaptability in some complex terrains or areas that require large deformation.
2. Heavy weight: It is relatively inconvenient to transport and carry.
3. Ambient temperature restrictions: There are certain requirements for ambient temperature during construction and use, and low temperatures will affect its performance.
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4. Difficulty of later maintenance: Once damage and leakage occur, later maintenance is relatively complicated.
Cement blankets are suitable for the following projects:
1. Water conservancy projects: such as channel seepage prevention, dam slope protection, etc.
2. Road engineering: It can be used for road base reinforcement, slope protection, etc.
3. Slope protection project: Prevent soil landslides and collapses.
4. Temporary protection projects: such as providing temporary waterproofing and anti-seepage protection at the construction site.
5. Military engineering: used for the protection and construction of military facilities.
6. Environmental protection projects: such as landfill anti-seepage, etc.
During the construction process, you need to pay attention to the following points:
1. Make sure the construction surface is smooth and solid, with no obvious unevenness or cracks.
2. Before laying the cement blanket, the construction surface should be cleaned to remove debris and dust.
3. When laying the cement blanket, care should be taken to avoid folding or stretching and ensure it is flat and snug.
4. After the cement blanket is laid, it should be watered and maintained in time to ensure its strength and durability.
5. During use, avoid crushing with heavy objects or scratching the cement blanket with sharp objects.
It should be noted that cement blankets from different manufacturers and product models may differ. Regarding the specific structure, specifications, weight, construction precautions and other information, it is recommended to consult the TINM team before purchasing to obtain more accurate and detailed information.