How to deal with sand on the engineering ground?

Generally speaking, the reason for sanding on the engineering ground is because the strength and hardness of the concrete surface are not enough, you can consider using concrete curing agent, in view of the above problems, our company suggests the following solutions: 1. When the concrete sealing curing agent floor is formed, it is necessary to carry out effective light collection and maintenance in time, so that the concrete surface can be used to get more obvious results; 2. The concrete sealing curing agent has the best effect on the surface of the new concrete floor; 3. Concrete sealing curing agent is a colorless liquid, which can penetrate into the concrete, do not change the color of the concrete, and can effectively achieve the purpose of strengthening, hardening, dustproof and sealing concrete; 5. The daily cleaning and cleaning of the concrete sealing curing agent floor can speed up its reaction with concrete and improve its performance; 6. The reaction time of concrete sealing curing agent is longer, after the construction is completed, with the growth of use time, all kinds of friction can make the concrete sealing curing agent continue to react with concrete, and the longer the use time, the better the effect; 7. Concrete sealing curing agent is a unique product that can be applied to high-strength new and old concrete floors; 8. Concrete sealing and curing agent can be applied to concrete floors, hardened aggregate floors, parking lots, bridges, roads, roads, airports, large warehouse shopping malls and other concrete floors in various workshops.

The main reason is that the cement label is not up to standard, and I suggest that the ground should be chiseled and a layer of net cement should be laid.

1. Grassroots requirements.

Clean the sandy floor, no floating ash, keep it dry (moisture can be allowed, but there must be no open water);

Cracks and defects should be repaired with high-strength repair materials, and then hardened with concrete hardeners.

2. Hardening.

Direct spraying to ensure that the base layer is fully infiltrated and absorbed, replenish the absorbed material at any time, maintain the infiltration state, and make the whole ground completely soaked;

At any time, the excess material in the low-lying place should be swept to the absorbed place, and the base layer should be guaranteed to fully absorb the No. 1 material within 2 hours, and there should be no accumulation of residual materials;

Severely sanded ground can be sprayed repeatedly for three consecutive days.

3. Wear-resistant treatment

After at least 48 hours of construction, 2 materials are used to directly paint the ground after hardening, and it can be used once and again, which should be uniform and full, without maintenance, and can be used normally after 7 days.

The sanding of cement pavement is mainly due to improper maintenance, the proportion of water and cement is too large, the grading of sand and gravel is unreasonable, the mud content is high, the aggregate grading is unreasonable, and the soil sand that is too fine is also easy to lead to ground sanding, which affects the early hydration of cement and the coagulation of concrete.

Solution: Use cement pavement repair materials. Specific treatment steps: first clean up the diseased pavement, clean it with a high-pressure air gun or broom, and then wash it with water to keep the repaired pavement fully moist until there is no more water seepage and no open water.

Then add water to the repair material and stir it evenly, pave it, and use a scraper to flatten it to ensure that the repaired floor elevation is consistent with the original floor elevation. The operation time of the repair material is controlled within 30 minutes (Note: the light shall not be collected twice after the initial setting; 0 or less shall not be constructed), use a large trowel to assist in the light.

Immediately after the repair is completed, it is sprinkled with water and covered with plastic film for curing. In normal seasons, there is no need for maintenance after the construction of high-quality repair materials is completed. It will be open to traffic in 1-2 hours, and the boarding person will be open to traffic.

For cement floor sand and ash lifting, you can use BW101 water-based floor sanding treatment agent or oil-based one-component floor penetrating curing agent of Bangwei Building Materials.

The main reasons for sanding on cement floors are:

1. The water-cement ratio is too large: that is, the amount of water in the mixed concrete is large, which leads to water leakage on the concrete surface and reduces the strength of the concrete surface.

2.Unreasonable gradation of sand and gravel and high mud content: Unreasonable gradation of aggregate and too fine soil and sand can easily lead to sand on the ground, affecting the early hydration of cement and the coagulation of concrete.

3.Excessive vibration during construction: exacerbates water leakage on the concrete surface, resulting in low concrete surface strength.

4.Improper maintenance: failure to maintain in time or insufficient maintenance, exposure to the sun or strong wind leads to a large amount of water loss on the surface of the concrete, and the surface is not fully hydrated, resulting in low strength.

5.Other reasons: poor grasp of calendering time, work on the concrete surface before reaching a certain strength, and freezing of the concrete surface under low temperature.

The cement floor is seriously sanded, which can be solved with concrete sealing and curing agent.

Go directly to the store or online shopping platform to buy a sand fixing agent and spray it on the ground, and at the same time, it can also play a role in waterproofing.

1. For the sand is not very serious, you can use some glue materials on the building. In this way, the bonding does not need to be sanded, and this method can only be used for occasions where the sand is relatively light.

2. Use a special treatment method for sand on the cement floor.

3. This method is the most effective, and it is the most troublesome not to stay overnight, that is, to destroy all the cement layers of the sand and then clean them up, and make a new cement layer.

1. The repair area should be cleaned up.

2. The repair area should be fully moistened.

3. When mixing materials, use a mixer to stir and repair materials as much as possible, and control the water-cement ratio of materials.

4. Avoid construction in rainy days or low temperature weather, and choose repair materials that meet the construction conditions.

5. The time of material paving should be controlled within 30 minutes, and the material should be spread and smoothed in time, and the material that has hardened cannot be used for the repair of diseases.

1. Pure cement repair: If the imitation is only a small area of sanding, you can use ordinary Portland cement for repair, and generally use it on the roof or yard of the individual.

2. Cement repair mortar: If the concrete floor is only sandy, the effect of using this material is much better than pure cement or glue. Not only can it hide the problem of sanding, but it can be used one day after repair.

3. Cement pavement sand treatment agent: infiltrate and repair Qi Sui material, specifically solve the sand caused by the low strength of the cement floor, and the strength of the cement floor is improved after repair, and the sand can be solved from the root without changing the appearance of the ground.

1. Pure cement repair. If it is only a small area of sand, it can be repaired with ordinary Portland cement, and it is generally used on personal roofs or yards.

2. Cement repair mortar. If the concrete floor is only sandy, it is much better to use this material than pure cement or glue. Not only can it hide the problem of sanding, but it can be used one day after repair.

3. Cement pavement sand treatment agent. Infiltration repair materials, specially solve the sand caused by the low strength of the cement floor, the strength of the cement floor is improved quickly after repair, and the sand can be solved from the root without changing the appearance of the ground.

4. Use a broom vacuum cleaner to clean and sweep the dust on the ground, so that the ground is kept dry and free of water and oil stains. The material is used directly after the cover is opened, generally using a long-haired roller brush, and the ground sand is slightly sand brushed once, and the ground sand is serious, the roller brush needs to be used twice, and the roller brush is uniform. After the surface of the first pass is dry, that is, the foot does not stick to the shoes, you can continue to brush the second pass.

Ground sand treatment method:

1. If the ground is a small area of sand, you can use ordinary Portland cement to do the repair work, which is simple and effective.

2. If the concrete floor is only sanded, cement repair mortar can be used, which can not only play a better masking effect, but also can be used the next day after repair.

3. The purchase of infiltration repair materials can also better deal with the problem of ground sanding, and the strength of the repaired cement floor can be greatly improved.

4. If there is a large area of sand on the outdoor concrete, or the sand on the cement floor of the workshop, it is necessary to use the cement floor sand treatment agent, which will bring better results and avoid subsequent sand again.

Causes of ground sanding

1. It may be because of some situations in the concrete that the ground will be dusted first, and if it is not cleaned, the ground will be peeled, and then small stones will be exposed. When it is stressed again, the ground cracks, causing potholes.

2. In the process of concrete mixing, the amount of water added is relatively large, or the mixing is not very uniform, which will lead to the sand on the ground in the later stage, and it needs to be treated in time.

3. The matte times of the concrete floor do not meet the standard, and the pressure is not very strong. Or if the matte time is not very accurate, there will be problems.

4. When the mortar is watered in the process of shrinkage, resulting in different drafts, there will also be the phenomenon of concrete sanding, and the occurrence of such situations should be avoided as much as possible, so as to avoid unnecessary troubles caused by later repair.

Ground decoration is a crucial step in home decoration, but in the process of decorating the ground, there may be ground sanding, many people do not know how to solve this situation, so how to deal with ground sanding? What are the causes of sand on the cement floor? Let's take a look!

1. How to deal with sand on the ground.

When encountering the situation of ground sanding, the dust on the ground should be cleaned up first, and then the corresponding solutions should be taken according to the severity of the ground sanding. If the situation of ground sand is not very serious, the use of pure cement mortar to carry out local surface treatment on the ground can be, but if the ground sand situation is more serious, it is recommended to remove the original surface layer and re-lay the surface layer.

2. What are the reasons for sand on the cement floor?

1. The sanding of the cement floor may be due to the addition of a large amount of water when preparing the concrete, which leads to the leakage of water from the concrete, which reduces the strength of the concrete. It may also be because the proportion of sand and ash is unreasonable, or the soil and sand used are too fine, resulting in sand on the cement floor.

2. During the construction process, if the concrete is vibrated excessively, the water leakage of the concrete will be aggravated, and the strength of the concrete will be reduced, resulting in the sand on the cement floor. After the construction of the cement storefront, if the cement floor is not maintained, there will be water loss of concrete, resulting in sand on the cement floor.

3. During the construction of the cement floor, if the calendering time is too long or too short, it will also lead to the sand on the ground on the cement floor, and the construction in a low-temperature environment is also prone to sand on the ground, so it is necessary to ask professionals to operate during the construction process.

Summary: How to deal with the ground sand related content is introduced to you here, in the construction of the ground, you need to understand the correct construction method of the cement floor in advance, otherwise it is easy to appear ground sanding, causing unnecessary trouble. If you want to know more about decoration, you can pay attention to the relevant information of Qeeka Home.