Classification of moisture content of wooden floor of gymnasium
The moisture content of the wooden floor material of the gymnasium: the percentage of the weight of the moisture contained in the floor material to the weight of the floor material after drying.
The equilibrium moisture content of the wooden floor material of the gymnasium: the stable moisture content of moisture absorption or the stable moisture content of desorption of the floor material in a certain air state is finally achieved, which is called the equilibrium moisture content of the floor material (the stable state of moisture of the floor material).
Influence of moisture content of wooden floor on wooden floor of gymnasium
The moisture content is too low, and the expansion gap is not enough when paving. When the climate is humid, the floor will arch and warp when it is damp. According to the moisture content of the floor, the decoration workers can appropriately relax or narrow the expansion joints between the floor and the wall, and between the floor and the floor, so as to avoid problems such as arching and separation of the floor.
The importance of the moisture content of the wooden floor of the gymnasium
Floor moisture content is critical. The moisture content of the purchased floor must be close to the local equilibrium moisture content. The method of determining the equilibrium moisture content is very simple. First measure the moisture content of the purchased varieties in the exhibition hall, and then open the box to test the moisture content of the purchased varieties of wood floors. If the difference in moisture content between the two is only +1% to 2%, it is a qualified product.
It is very important to control the moisture content of the wooden floor of the gymnasium. If the moisture content of the floor is not paid attention to, it will often cause problems such as dampness and deformation of the floor. When the moisture of the wet wood evaporates, the free water is lost first, and the moisture content when the free water evaporates and the adsorbed water is still in a saturated state is called the moisture content of the fiber saturation point.
How to Conduct a Gym Floor Moisture Test
Since the moisture content of the floor is so important, how should it be tested? If you rely on your own eyes, there is definitely no way to test the moisture content of the floor. After the floor is formed, its appearance is relatively fixed, so in order to test the moisture content of the floor, it must rely on a special tester. In general, moisture content meters are available in many sales locations, and consumers can ask the seller to perform on-site measurements.
Which wood floor moisture content is qualified?
When the floor material is placed in a certain environment, after a long enough time, its moisture content will tend to an equilibrium value, which is called the equilibrium moisture content of the environment. When the moisture content of the floor material is higher than the equilibrium moisture content of the environment, the floor material will shrink and shrink, otherwise it will absorb moisture and expand. For example, the average annual equilibrium moisture content in Guangzhou is 15.1%, while that in Beijing is 11.4%. The floor material dried to 11% is suitable for Beijing, but it will absorb moisture and expand and deform when it can be used in Guangzhou. On the other hand, if the moisture content is suitable in Guangzhou, it may cause dry cracks in Beijing. Different regions and different uses have different requirements for the moisture content of floor materials.
The general moisture content of the floor is 12% to 14%. If the moisture content of the floor is too high, after the decoration, due to the influence of the dry climate, the moisture in the floor will dry up and shrink, and it will be on the floor.There is a gap in between.
Due to the vast territory of our country, it is difficult for wood floor manufacturers to customize the floor for specific paving areas. Within the approximate floor moisture content range, there are many acquired operations that can make the gymnasium floor conform to the paving of various regions. For example, during installation, the moisture content of the floor can be gradually approached to the local ambient humidity through the unopened health care method; or the expansion joints can be properly reserved during installation to avoid the problem of floor deformation.
In short, the problem of moisture content of the wooden floor of the gymnasium seems to be very small, but the relationship is very large. A little carelessness may affect the entire installation effect, so dealers and consumers should pay special attention to it.
