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In the field of construction, the emergence of new technologies and new materials has brought new opportunities and challenges to the development of the industry. As an innovative building material, precast wall panel is gradually receiving widespread attention.
What is a precast wall panel?
A precast wall panel is a formwork that does not need to be removed during the concrete pouring process. It is usually composed of high-strength cement, fillers, steel bars, etc., and has high strength and durability. During the construction process, It can be directly used as part of the building and combined with concrete to form a solid whole.
Features
Convenient construction
The precast wall panel is very convenient during the installation process, and there is no need for complicated disassembly work like traditional formwork. This greatly saves construction time and labor costs and improves construction efficiency.
High strength
Due to the use of high-strength materials, It has high strength and stability. It can withstand the pressure and impact force during concrete pouring to ensure the structural safety of the building.
Excellent fire resistance
It has good fire resistance and can effectively prevent the spread of fire. This is of great significance to improving the safety of buildings.
Environmental protection and energy saving
It does not need to be dismantled during the construction process, which reduces the generation of construction waste and is more environmentally friendly. At the same time, its thermal insulation performance can also reduce the energy consumption of the building, meeting the requirements of energy conservation and environmental protection.
Advantages
Reduce costs
The convenience of construction and the characteristics of precast wall panel greatly reduce the construction cost. It reduces the procurement, installation and disassembly costs of traditional formworks, and also saves labor costs and time costs.
Improve project quality
The high strength and stability of precast wall panel can ensure the structural safety of the building and improve the quality of the project. Its thermal insulation and fireproof properties can also provide better performance for the building.
Speed up construction progress
The installation speed of precast wall panel is fast, and there is no need to wait for the formwork to be dismantled, which can greatly shorten the construction period. This is of great significance for some projects with tight construction schedules.
Strong adaptability
It can be customized according to different architectural design requirements and is suitable for buildings of various shapes and sizes. Its flexibility and adaptability make it have a wide range of application prospects in the field of construction.
Raw materials for the production
1. Cement
Ordinary Portland cement
Features: high early strength, moderate setting time, and good stability. Ordinary Portland cement is the most commonly used cement variety in precast wall panel, with stable performance and relatively low price.
Sulphoaluminate cement
Features: fast hardening and early strength, good impermeability, and strong corrosion resistance. Sulphoaluminate cement is suitable for projects with high requirements for early strength, such as winter construction or emergency repair projects.
2. Filler
Fly ash
Features: high activity, low water demand, and low price. Fly ash can replace part of the cement, reduce the cost of concrete, and at the same time improve the durability and impermeability of concrete.
Slag powder
Features: high activity, low water demand, and high strength. Slag powder can replace part of the cement, improve the strength and durability of concrete, and at the same time reduce the hydration heat of concrete and reduce the occurrence of cracks.
3. Other materials
Rebar
Features: high strength and corrosion resistance. Steel bars can be used as reinforcing materials to improve the bending strength and shear strength of the formwork.
Function: Enhance the mechanical properties of the formwork.
Connectors
Features: Firm connection and easy installation. Connectors are used to connect the precast wall panel to the main structure to ensure that the formwork will not shift or deform during the concrete pouring process.
Function: Connect the formwork to the main structure.
Different manufacturers may make adjustments and optimizations according to actual conditions. When selecting production raw materials, factors such as the performance, price, and supply stability of the raw materials need to be considered to ensure the production of high-quality precast wall panel.
Production process of precast wall panel equipment
Raw material preparation
The production of precast wall panel mainly uses raw materials such as cement. These raw materials need to be strictly screened and inspected to ensure that the quality meets the requirements.
Mixing
Add the raw materials to the mixer in a certain proportion and mix them thoroughly. During the mixing process, the mixing time and speed need to be controlled to ensure that the materials are evenly mixed.
Molding
The mixed materials are molded by the molding machine to make precast wall panels of various shapes and sizes. During the molding process, the molding pressure and temperature need to be controlled to ensure the strength and quality of the formwork.
Curing
The molded formwork needs to be cured to improve its strength and durability. During the curing process, natural curing or steam curing can be used, depending on the material and process requirements.
Quality Inspection
The template after curing needs to be inspected for quality, including appearance quality, dimensional accuracy, strength, etc. Only templates that meet quality standards can be sold.
