Concrete drainage board
Short Description:
Concrete drainage board is a plate-shaped material with drainage function, which is made by mixing cement as the main cementitious material with stone, sand, water and other admixtures in a certain proportion, followed by processes such as pouring, vibration and curing.
Concrete drainage board is a plate-shaped material with drainage function, which is made by mixing cement as the main cementitious material with stone, sand, water and other admixtures in a certain proportion, followed by processes such as pouring, vibration and curing.
Structural Characteristics
Solid Structure: The main body of the concrete drainage board is a concrete slab formed by mixing cement, sand and stone in a certain proportion, followed by processes such as pouring, vibration and curing. It provides the basic strength and stability for the drainage board, enabling it to withstand certain pressure and load.
Drainage Structure: To achieve the drainage function, special drainage channels are set inside the concrete drainage board. There are two common forms. One is to reserve regular or irregular pores and holes in the concrete slab. These pores are interconnected to form a drainage network. The other is to embed permeable pipes or permeable fibers and other permeable materials in the concrete slab to serve as water flow channels to guide the water to drain smoothly.
Working Principle
Gravity Drainage: Using the action of gravity, when water enters the concrete drainage board, the water naturally flows downward along the pores, holes or permeable pipes and other drainage channels in the drainage board under the drive of gravity, thus realizing the purpose of drainage. This is the main drainage method of the concrete drainage board and is applicable to most scenarios with drainage needs.
Capillary Action Assistance: The tiny pores inside the concrete drainage board will produce capillary action. In some special cases, such as when the drainage board is in an environment with uneven humidity or when the water content is low, the capillary action can help the water distribute and transmit more evenly in the drainage board, assisting the gravity drainage and making the drainage process smoother and improving the drainage efficiency.
Performance Advantages
High Strength and Stability: The concrete material itself has high compressive strength and flexural strength, enabling the concrete drainage board to bear large pressure and external forces. In places such as roads and squares that bear the load of vehicles and pedestrians, as well as in some projects with high requirements for structural stability, the concrete drainage board can maintain good structural integrity and is not prone to deformation or damage.
Good Durability: It has excellent impermeability, frost resistance and corrosion resistance. When exposed to the natural environment for a long time, such as in humid, cold, acidic and alkaline corrosive media, the concrete drainage board can resist the erosion of various factors, is not prone to aging and damage, has a long service life, and can provide long-term and stable drainage function for the project.
Good Drainage Performance: By reasonably designing the internal drainage channels, such as parameters of porosity, pore size and quantity, the concrete drainage board can effectively collect and discharge rainwater, groundwater, etc. according to the drainage needs of different projects, ensure smooth drainage and avoid waterlogging from damaging the project.
Good Environmental Protection: Its raw materials are mainly natural materials such as cement, sand and stone, which cause relatively little pollution to the environment during the production and use process. Moreover, the concrete material can be recycled after the end of its service life, which is in line with the requirements of environmental protection and sustainable development.
Application Scenarios
Municipal Engineering: In urban road construction, it can be laid between the road base and the surface layer to quickly drain road surface water and prevent rainwater from penetrating into the subgrade, prolonging the service life of the road. In ground projects such as urban squares and parks, it can effectively drain surface water and keep the ground dry, providing people with a comfortable activity space.
Construction Engineering: In the construction of the basement floor of buildings, the concrete drainage board can be laid above the waterproof layer to quickly drain the accumulated water in the basement and protect the basement structure from water erosion. In roof gardens, underground garage roofs and other parts, it can also play a good role in drainage and protection, preventing leakage and the damage of the waterproof layer by plant roots.
Water Conservancy Engineering: In the construction of reservoirs and dams, it can be used for drainage inside the dam body or at the dam foundation to reduce the pore water pressure of the dam body, enhance the stability of the dam, and prevent seepage and piping. In water conservancy facilities such as canals and pools, it can effectively drain excess water and ensure the normal operation of water conservancy facilities.
