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Cement floors are popular because of their low cost and ease of construction. However, the structure of the cement floor is relatively loose, and it is easy to cause dust and sand, cracking, and even potholes after being used for too long. In particular, dust and sand will lead to an increase in dust particles in the air, and the harm to the human body is self-evident, so how to quickly solve the problems of the cement floor has become particularly important.
Dusty and sandy cement pavement.
1. Portland cement.
The use of Portland cement is directly repaired in the place where the dust and sand are raised, and the cost of this method is low, but the compressive and wear-resistant ability of the cement floor after repair is not very strong, and it is easy to dust and sand again.
Portland cement pavement.
Second, the protection of concrete No. 1.
It is repaired with the No. 1 repair material of the protective concrete. This method is easy to construct, and can be opened to traffic within 2-3 hours after the construction is completed, and has good impermeability, freeze-thaw resistance, wear resistance and corrosion resistance.
Cement pavement repaired with Concrete No. 1.
3. Cement floor hardener.
Cement floor hardener is a water-based, non-toxic, harmless, non-flammable liquid penetrant. It can effectively penetrate into the ground 3-8mm, and chemically react with the inside of the cement, so that the cement floor becomes a dense whole.
Hardener repaired cement pavement.
Fourth, universal repair mortar.
Universal repair mortar has good fluidity and can be constructed without construction experience. All you need to do is clean the ground and spread the mortar directly on the damaged ground.
Cement pavement being repaired with universal repair mortar.
Most of the sand on the cement floor is caused by the light cement ratio, poor sand quality, and improper maintenance in the later stage. Having said so many ways to fix it, prevention is the most important thing.
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Dust, sand, and cracking of the cement floor? In this way, the dust and sand and cracking of the ground can be solved, which are the problems that can easily occur during the use of cement floor. After the cement floor is made, generally after half a month, the cement floor will begin to slowly appear dust and sand, cracking and other problems, and most people are taking some methods such as waxing to solve or not solve directly, but this can only slow down the speed of ground damage, and can not prevent the occurrence of dust and sand on the ground, which is a method of treating the symptoms but not the root cause.
Seeing this, many people may ask, is there any way to prevent dust and sand and cracking on the ground? The reason why the cement floor is easy to dust and sand and crack is because its own structure is loose, and the ground pressure will destroy the cement floor structure, resulting in dust and sand and cracking on the ground. At present, the cement floor hardener on the market can solve the problem of loose cement floor structure, and the cement floor hardener can penetrate deeply into the ground for 3-8mm, react with the cement floor, and generate a network structure to fill the pores of the cement floor, making it a dense whole, and greatly improving the strength, hardness, wear resistance, permeability and other properties of the ground.
After the cement floor construction cement floor hardener, the sealing of the ground is improved, and there is no need to worry that the dust will be precipitated from the pores of the ground, and the problem of dust and sand on the ground can be easily solved, and oil and other substances will not penetrate into the ground to form stains, as long as it is treated in time, it can leave no traces, keep it clean for a long time, and reduce the cleaning cost of the ground. After the construction of cement floor hardener, the service life of the ground can reach more than 30 years, and one construction saves 30 years.
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If the sand area is small, you can mix some pure cement slurry and apply it to the sand area for repair. If the sand area is large, you need to use a professional ground treatment agent, mix and dilute with water, and then apply it to repair. If the sand area is large, the repair is a little more complicated, and it is necessary to apply all the interface agent, then pave and repair with universal repair mortar, and finally solidify and polish the ground.
1.Strictly control the water-cement ratio of cement mortar.
The size of the water-cement ratio is an important factor that directly affects the strength of the mortar. If the water-cement ratio is too large, the strength of the ground will be low, the surface of the ground will be rough and not wear-resistant, and it will be easy to sand. In addition, too much moisture on the surface will prolong the calendering time of the surface layer, which may exceed the final setting time of the cement, and naturally the quality of the ground cannot be guaranteed.
On the contrary, if the water-cement ratio is too small, it means that there is too much cement, the mortar is dry and hard, the construction operation is difficult, the dry shrinkage is large, and the ground is prone to cracks, which also affects the quality.
2.It is forbidden to use expired cement and damp cement.
Cement stored for more than 3 months is called expired cement. Expired cement will react with water vapor and carbon dioxide in the air, and the calcium carbonate generated will weaken the cementing properties of cement and reduce the heat of hydration. Therefore, when expired cement is used in the ground surface layer, its strength, hardness and wear resistance will be significantly reduced, resulting in sanding.
3.Adequate curing time should be allowed.
The quality of conservation work is closely related to the quality of the ground. After the cement mortar is mixed, it is from the initial setting to the final setting, and then enters the hardening. After hardening, the hydration will continue to penetrate deep into the cement particles in a humid environment, and the strength of the mortar will continue to increase.
Generally, 7 to 14 days and nights of maintenance time should be applied. If the curing time is insufficient, the water will continue to evaporate in the dry air, which will slow down or even stop hardening, and the surface mortar will not be able to reach the design strength, and then problems such as peeling or sand exposure will occur, and sand will inevitably rise. (Image source: Internet invasion and deletion).
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If the cement floor is sandy, we had better lay the ground with bricks, so that the cement floor will not be sandy, and the cement floor can also be polished.
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I think the best thing to do is to spray the hardener on the concrete floor, so that there is no pulverization and sanding.
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1.To remove the floating ash on the surface, different treatment methods should be implemented according to the degree of cement sanding. 2.
If the area of cement floor sand is less and the floating sand is small, it is recommended to use pure cement slurry for local covering, and ordinary Portland cement or Portland cement can be used for cement. Strictly control the water-cement ratio of cement mortar: the water-cement ratio is an important factor affecting the strength of the mortar.
If the proportion is too large, the strength of the ground will decrease, the surface will be rough, and the sand will rise easily. If the water-cement ratio is too small, the mortar will dry out and the ground will be prone to cracks.
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The cement floor is more wear-resistant, the cement floor is also relatively simple and convenient, the rural yard and the ground on the first floor can be used with cement floor, which is more convenient to clean, but the cement floor is prone to the problem of sanding, which will affect the appearance and daily life, and should be repaired in time. How to prevent sand on cement floors? Let's find out!
What materials are used to repair the sand on the cement floor at home.
1. According to the degree of sanding of the cement floor, different treatment methods can be selected. If the degree of sand is relatively slight and the area of sand is not large, you can buy some cement slurry by yourself, stir it evenly, and apply it to the place where the pure sand is transported on the cement floor. After the cement is dry, it will no longer affect daily life, but the color of the ground may look uneven, but this will not affect our daily use, so if there is no special pursuit of appearance, you can use this method.
2. If the sand area is not particularly large, but it is not small and is at a medium level, then it is not very convenient to treat it with cement slurry. We can buy some ground treatment agents, mix the ground treatment agent and water in a certain proportion, stir a few shirts and mix evenly, and then apply the mixture to the sanding position, within three hours after application, you need to keep it moist, and after air drying, you can use it normally.
3. If the area of cement floor sand is relatively large, it is necessary to use repair mortar for repair. Before applying the repair mortar, it is necessary to apply the primer to the sanding area in advance. After applying the interface agent and repair mortar, calendering and polishing can be carried out if possible, which will make the floor more shiny.
How to prevent sand on cement floors?
1. In order to prevent sand on the cement floor, before the initial laying of the cement floor, do not put too much cement lime when preparing the cement slurry, so as to prevent the loss of moisture on the surface of the cement floor in the future, resulting in sanding.
2. When we choose cement raw materials, we need to carefully screen the raw materials that are suitable for the beam, among them, the gravel in the cement should not be too fine, and after the cement is paved, we also need to pay attention to the maintenance in the later stage, so as to reduce the probability of sanding on the cement floor.
What materials are used to repair the sand on the cement floor at home. How to prevent sand on cement floors? The above is the relevant content of the introduction, you can use it as a reference, the cement floor sand should be dealt with in time to avoid getting more and more serious, and the cement sand should also be selected.
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In order to better traffic and travel convenience, many friends will pave a layer of cement at the door, although the cement floor is layered, but it will be very easy to sand after a long time. If it is not solved, the sand situation will only become more and more serious, and over time, it will hinder daily life. In order to prevent this problem, the large state of the house should be repaired immediately if there are signs of sand on the concrete floor.
So, how to repair the sand on the cement floor? How to prevent sand on cement floors? We've got you covered.
How to repair the sanding of the cement floor.
1. According to the sand level of the cement floor, different disposal methods can be selected. If the sand level is relatively mild, and the range of the mold sand is not large, you can buy some cement slurry, stir evenly, and apply it to the sanding area at the cement floor. Until the cement is done, it is not easy to endanger daily life anymore, but the color of the road surface may look uneven, but this does not affect everyone's daily application, so if there is a very pursuit of perfection on the surface, this method can be applied.
2. If the total area of sand is not very large, but it is also very large, and it is in the upper middle level, it is not very convenient to solve it with cement slurry. We can buy some pavement modifiers, mix the pavement modifier and water according to a certain ratio, stir evenly, and then apply the mixed substance to the sanding part, within three hours after the application, it must always be kept moist, and after drying, you can apply it normally.
3. If the scope of sand on the cement floor is very large, it must be repaired with repair mortar. Before applying the repair mortar, it is necessary to apply waterproof putty to the sanded area as early as possible. After applying the interface agent and repair mortar, if necessary, you can carry out polishing and polishing, which can make the road surface more shiny.
How to prevent sand on cement floors?
1. In order to prevent sand on the cement floor, before starting to pave the cement floor, prepare the cement slurry in advance, and do not need to put too much cement lime powder to avoid the outflow of moisture from the surface layer of the cement floor in the future, resulting in sanding.
2. In the case of selecting cement raw materials, we must carefully select suitable raw materials, in which, the sand and gravel in the cement are not suitable for too fine, after the cement is paved, we must also pay attention to the maintenance in the middle and later stages, which can reduce the probability of sanding on the cement floor.
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During the construction of the cement floor, there is sand on the cement floor, and if it is not dealt with in time, it will affect the construction of the ground. SoSand on the cement floorWhat to do and how to deal with itThe water code carries the sand from the mud groundLet's take a look.
1.Hardening: Spray a sanding agent on the sanding floor macro cover, and the surface must be completely wet to ensure the effect. After spraying, the excess treatment agent should dry and the floor should be absorbed for 2 hours. The effect cannot be achieved once, and it can be hardened for four consecutive days;
2. Wear-resistant treatment: spray penetrating curing agent on the surface of the floor to improve compressive strength, hardness and density.
2.The ground of the cement floor is smaller, and the floating sand is smaller. It is recommended to cover the surface with a pure cement suspension. Cement can be made from regular Portland cement or Portland cement.
3.The grinding area of the cement floor is large, but the plot is not very serious, it is recommended to use a professional ground treatment agent, the construction is simple, and the effect is obvious.
1.Strictly control the water-cement ratio.
The water-cement ratio will directly affect the hardness of cement. If the hardness of the floor surface is low and the roughness is not wear-resistant, it is very tolerant of the mold and easy to polish the floor, so the construction personnel must strictly control the water-cement ratio to avoid this situation at the source. It happens.
2.It is forbidden to use expired cement.
Generally speaking, cement has a lifespan of three months. If expired cement is used, it is easy to affect the hardness of the floor, which will lead to the sanding of the floor. Also, if the cement has moisture, sanding will occur.
3.The surface should be avoided with fine sand as much as possible.
Because the floor surface has to withstand a lot of pressure and friction, do not use fine sand on the surface. Otherwise, after a short period of time, sanding will occur. Sand on the cement floorIt is recommended to use at least medium or coarse sand.
4.Allow sufficient time for maintenance.
The maintenance of the land is very important, generally more than 7 days. If sufficient curing time is not reserved, the moisture on the surface will continue to evaporate, which will not only make the surface layer easily damaged, but also increase the possibility of sanding.
That's itSand on the cement floorWhat to do and how to prevent itSand on the cement floorI hope it can help you.
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