The flatness of the ground is very important in daily work and life. If the ground is uneven, one high and one low, or potholes, this will affect the smooth operation of the factory forklifts or vehicles, and heavy objects may also be stacked due to unstable center of gravity.
The dumping and uneven ground will also affect the paving of the ground, which is easy to generate dust. In addition, in-floor construction, if the flatness of the ground is not good, it is not conducive to the smooth operation of the floor grinding machine, and it also has a big impact on the grinding effect of the ground.
Causes of uneven ground:
1. Excessively thick mortar is an important reason for uneven ground. Inappropriate process arrangement is also a problem that cannot be ignored. If the ground calendering time is too early or too late, the ground will be uneven. Improper curing will cause the cement mortar to dehydrate, which will result in a decrease in strength and wear resistance. The protection of the finished product is not effective, and the cement mortar floor may be damaged by freezing and form loose particles. The raw materials do not meet the requirements. The cement grade is low, and the sand particle size is too fine to cause sanding of the cement mortar surface.
2. One of the reasons for the hollowing of cement mortar floor is that the base surface is not clean and the base surface is too smooth. The adhesion between the base layer and the surface layer is insufficient, resulting in the hollowing of the surface layer. The surface of the base layer is too dry or there is water on the surface of the base layer. When constructing a cement mortar floor, a layer of plain cement mortar is generally applied to the surface of the base layer. If the brushing time is too early during the operation, the brushed cement mortar has been air-dried and hardened, which not only does not increase the bonding force but acts as the base layer. The isolation between the surface layer.
3. Poor cement stability or hot cement just out of the kiln. The cement used has a large shrinkage during setting and hardening, and the mud content in the sand is too large. The volume of the soil in the cement mortar will shrink during the hardening and dehydration process, causing the floor surface to crack. The maintenance is not timely or maintenance. The ground will produce shrinkage cracks. If the cement mortar is too thin or the mixing is not uniform, the tensile strength of the mortar is reduced. Once the overall surface of the cement mortar is subjected to tensile stress, the cement surface will crack. Then there is the poor quality of backfill.
These are some things to pay attention to in the process of making cement floors, and if the ground is already uneven and affects people's work and life, it must be dealt with in time.
The ultra-flat floor grinding machine is used to grind and level the cement floor, with sufficient weight and strong cutting force; the four-head planetary counter-rotating grinding method has a good grip, making the operation of the floor grinder on the ground more stable; it can walk and grind independently. And the function of cruise control allows it to freely adjust the walking speed and rotation speed. Even if the operator is different, as long as the parameters are set, the ground effect will be the same. The ultra-flat floor grinding machine is specially designed to deal with the problem of flatness of the floor. Its use makes the ground more even and smooth. The ground is flatter, more resistant to pressure and wear, and easier to clean.
Publication Date: 5 March, 2021
Category:
Concrete Floor Grinder
