Why is the surface of concrete peeling? What are the causes of peeling on the surface of concrete

The main reason for the peeling of the concrete surface is because of the surface area of the concrete.

Caused by water, due to the relationship between the rainfall in the south in summer, it is prone to flooding, and the cement pavement in the south is soaked in water, and it is prone to diseases when it peels.

If it is the bottom plate, it is likely that the water accumulation in the foundation pit is not excluded, and this part of the water floods to the upper side when the concrete is poured, resulting in surface water; It may also be caused by the concrete water-cement ratio is too large or caused by random sprinkling of water when pouring concrete, this phenomenon is very common, if the surface is uneven, then excess water will accumulate in the low-lying place, causing the surface to peel; Another possibility is to soak in water too early (watering or rain) and the surface is also prone to peeling.

1. Newly poured concrete pavement peeling.

If the newly poured cement pavement appears peeling, it must be repaired as soon as possible, so as to avoid subsequent development and spread into more serious diseases, the reason for the appearance of new pavement peeling is generally because the pavement is slightly completely solidified and begins to be used, or the pavement is washed by rainwater and causes the surface strength of the pavement to be reduced, and the adhesion is reduced.

2. Concrete pavement peeling and repair.

Thin-layer pavement repair material, for pavement peeling repair first to clarify the purpose of repair, our purpose is to repair the pavement strength and adhesion after the same or the original pavement or have a range of improvement, so that there are greater requirements for the repair material, the new surface layer of thin-layer repair material to repair the pavement, the pavement with a high-pressure water gun before repairing.

The surface dust of the bar is cleaned, the material is stirred and poured into the diseased part, smoothed and solidified for 1-2 hours before it can be opened to traffic.

The main reason for the peeling of the concrete surface is that there is too much slurry on the surface of the concrete, and the strength is very low, so it causes the surface peeling.

Reason 1: There is water accumulation on the surface of concrete in the early stage of condensation.

Reason 2, the water in the foundation pit has not been eliminated, and this part of the water floods to the upper side when the concrete is poured, resulting in surface water.

Reason 3: The concrete water-cement ratio is too large or caused by arbitrary sprinkling of water when pouring concrete.

Reason 4: Soak in water too early (watering or raining).

Expansion of the material skin:

1. For concrete sand with frost resistance, impermeability or other special fuel rent requirements, its mud content should not be greater than 3%.

2. For concrete sand below C10 and C10, according to the cement number, its mud content can be relaxed as appropriate.

3. For concrete sand with frost resistance, impermeability or other special requirements, the mud content should not be greater than 1%.

4. For concrete sand below C10 and C10, the mud content can be relaxed according to the cement number.

5. For concrete with anti-freezing and impermeability requirements, the mica content in the sand should not be greater than 1%.

Summary. The reasons for peeling of the concrete surface are as follows:

1. The peeling of the concrete surface is mainly due to the accumulation of water on the surface of the concrete at the beginning of condensation. If it is a bottom plate, it is likely that the water accumulation in the foundation pit has not been eliminated, and this part of the water floods to the upper side when the concrete is poured, resulting in surface water;

2. It may be caused by the excessive water-cement ratio of concrete or the random sprinkling of water when pouring concrete, this phenomenon is very common, if the surface is uneven, the excess water will accumulate in the low-lying place, resulting in surface peeling;

3. It may be soaked in water too early (watering or rain), and the surface is easy to peel. This situation mainly depends on whether there is a problem with the strength of the concrete, if the strength of the concrete meets the specified requirements, only the surface treatment can be carried out, if the strength of the concrete is problematic, then it is another matter.

What are the causes of peeling on the surface of concrete

The reasons for the peeling of the concrete surface are as follows: 1. The peeling of the concrete surface is mainly due to the accumulation of water on the surface at the initial stage of concrete condensation. If it is the bottom plate, it is likely that the water in the foundation pit is not excluded, and this part of the water floods to the upper side of the bright foundation when the concrete is poured, resulting in surface water; 2. It may be caused by the excessive water-cement ratio of concrete or the random sprinkling of water when pouring concrete, this phenomenon is very common, if the surface is uneven, the excess water will accumulate in the low-lying place, resulting in surface peeling; 3. It may be soaked in water too early (watering or rain), and the surface is easy to peel.

This situation mainly depends on whether the concrete strength has a problem, such as the concrete strength to meet the specified requirements, then only the surface treatment can be, if the concrete strength is problematic, then it is another matter.

Is there a problem with the concrete peeling or not?

There are many reasons for peeling, not necessarily the problem of cement.

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The reasons for peeling of the concrete surface are as follows:

1. The peeling of the concrete surface is mainly due to the accumulation of water on the surface of the concrete at the beginning of condensation. If it is a bottom plate, it is likely that the water accumulation in the foundation pit has not been eliminated, and this part of the water floods to the upper side when the concrete is poured, resulting in surface water;

2. It may be caused by the excessive water-cement ratio of concrete or the random sprinkling of water when pouring concrete, this phenomenon is very common, if the surface is uneven, the excess water will accumulate in the low-lying place, resulting in surface peeling;

3. It may be soaked in water too early (watering or rain), and the surface is easy to peel. In this case, it mainly depends on the strength of the concrete.

If there is a problem, if the strength of the concrete meets the specified requirements, only surface treatment will be carried out.

Well, if there is a problem with the strength of the concrete, it is a different matter.

1. The water-cement ratio of concrete is high.

That is, the amount of water in the mixed concrete is large, which leads to water leakage on the concrete surface, reduces the surface strength of the concrete, and causes the surface to peel.

The higher the strength of the cement, the smaller the water-cement ratio, and the higher the strength of the prepared concrete; Conversely, the lower the strength of the concrete.

2. Failure to carry out the maintenance of concrete pavement as required.

Failure to maintain in time or insufficient curing, 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 and surface peeling.

In high temperature or particularly dry areas, as well as the strength of C40 or more concrete, maintenance is particularly important, sprinkling should be timely, to the surface of the skin shall prevail, sprinkled once or twice after the water, can be watered to sell maintenance.

Abstract 1: Rinse several times with a water gun to clean the surface.

2. Prepare mortar, the proportion of water and cement is best controlled at about 15%, pour it on the ground after adjustment, and then scrape it flat with a scraper.

3. Wait for about an hour or two, then put on the sealant, and do a good job of maintenance, generally 24 hours of maintenance.

How to deal with concrete surface peeling is the most scientific.

1. Rinse with a water gun several times to clean the surface. 2. Prepare mortar, the proportion of water and cement is best controlled at about 15%, pour it on the ground after adjustment, and then scrape it flat with a scraper. 3. Wait for about an hour or two, then put on the sealant, and do a good job of maintenance, generally 24 hours of maintenance.

Sealant to buy there.

There is. Is it okay to peel the floor in this way?

Concrete wall peeling refers to the phenomenon of spalling or lamination on the surface of concrete, which is usually caused by some problems in wall construction. Here are a few possible causes of the original light deficiency:

1.The ratio of cement slurry for wall construction is inappropriate or inappropriate admixture is added. When plastering the wall, the construction worker applies the cement slurry to the concrete surface. If the ratio of cement slurry is not suitable or if an inappropriate admixture is added, it will lead to peeling of the wall.

2.Improper treatment of wall surfaces. Surface treatment is very important for the quality of concrete walls.

If the concrete surface is not adequately prepared, or the surface is not pre-treated with cleaning and dust removal, it will directly affect the adhesion of the concrete wall. This can lead to peeling of the walls.

3.Insufficient compaction measures were not carried out during the construction of the wall. After the concrete wall is constructed, sufficient compaction measures should be carried out. If the wall is allowed to air dry without compaction, there is a risk that the wall will peel.

4.After the wall is constructed, seepage water enters the inside of the concrete. If the concrete wall is not adequately protected after construction, resulting in seepage water entering the concrete, the wall will be reincarnated.

5.Insufficient maintenance was carried out during the construction of the wall. There are often various disturbing factors on the construction site, such as climate change, construction noise, etc. If the wall is not adequately maintained after construction, it can lead to wall peeling.

In order to avoid quality problems such as peeling of concrete walls, construction workers should strengthen quality control and supervision in the construction process in accordance with the requirements of relevant specifications to ensure that the construction process fully meets the quality standards. At the same time, it is also necessary to deal with the problems of the wall surface in time to prevent the wall from peeling.