How long does it take to sprinkle water and maintain cement, and how long does it take to maintain c

The cement floor in real life can be seen everywhere, which brings a lot of convenience to people's lives, but in fact, the maintenance of the new cement floor is very critical, because if the maintenance is not good, it is easy to affect the service life of the cement floor, so how many hours after the cement floor is sprinkled? How to maintain the new cement floor? Let's take a brief look at it together.

1. Sprinkle water on the cement floor after a few hours.

If it is a place exposed to the sun, it can be sprinkled after 3 to 5 hours, if it is an indoor cement floor, it is recommended to sprinkle water after 8 hours, and continue to keep it for about 3 to 5 days until the cement is completely dry, pay attention to the cement floor after the calendering process, at least 12 hours before sprinkling, otherwise the surface is prone to segregation.

Second, how to maintain the new cement floor.

1. Steam method.

To maintain a concrete floor with a steam valve, the first step is to stop static, and you need to ensure that the ambient temperature is 5 degrees Celsius.

Above, and the cement construction completion time of more than 4 to 6 hours, followed by heating, to master a good heating rate, do not exceed 10 degrees Celsius per hour, again is constant temperature, during which the temperature inside the cement floor should not exceed 65 degrees Celsius, preferably at 60 degrees Celsius, and finally slowly cool down, the same cooling speed requires not to exceed 10 degrees Celsius per hour.

2. Box girder steam method.

Using the box girder steam method for maintenance, it is necessary to cover the poured beams and columns with a curing cover, and then enter the appropriate temperature and humidity, according to Qeeka Home.

According to experts, when raising the temperature in the box, the speed can not exceed 10 degrees Celsius per hour, and the constant temperature can not be greater than 45 degrees Celsius, when reducing the temperature in the box, the speed can not exceed 10 degrees Celsius per hour, when it comes to the lowest temperature, to ensure that the temperature difference between the temperature of the beam and the external environment is within 15 degrees Celsius.

Depending on the weather, it will be sunny for 2 hours (summer); In winter, it will take about 3 to 4 hours, and cloudy days will be longer, and it may take more than 4 hours; Specifically, depending on the concrete condensation situation, the concrete surface is washed out prematurely, and the concrete surface should be watered and cured as long as it is a little white.

After the completion of the plastering face, look at the weather conditions, the road surface can be sprinkled and maintained after the initial setting, that is, the water does not damage the road surface, generally the first reed is covered with film for a day, and the next day after cutting the shrinkage joint to begin to maintain the sprinkling film again. If it is a place exposed to the sun, it is generally possible to sprinkle water after 3 to 5 hours, if it is an indoor cement floor socks, it is recommended to sprinkle water after 8 hours, and continue to maintain it for about 3 to 5 days, until the cement is completely dry, pay attention to the cement floor after the calendering process, at least 12 hours before sprinkling, otherwise the surface is prone to segregation.

It takes at least 7 days to maintain the cement floor, and the specific maintenance time depends on the local weather conditions.

Under normal circumstances, we can walk around on the concrete floor after 2 days of curing. If we need to cut a joint in the ground, we need to do it on the third day of curing, usually within 12 hours of pouring the concrete floor.

Water more on the first day. The specific curing time should be determined according to the growth of its compressive strength, and the curing time of watering in high temperature weather should not be less than 14 days. The watering and maintenance time in low humid weather should not be less than 21 days, of which the maintenance of the first 7 days is the most important.

For different seasons, the frequency of watering and maintenance will be different, for example, in summer hot weather, you should water once every 4-6 hours. In other seasons, watering once every 12-24 hours is fine. We water the concrete floor to hydrate the rotten idea, which allows the concrete ingredients to react and tightly bind together.

It can also play a role in heat dissipation and avoid cracks inside the concrete caused by excessive temperature.

Cement pavement maintenance precautions:

When we are curing the cement floor, we should pay attention to the start of the maintenance time of the ground, if the construction environment temperature is high, the ground moisture evaporates quickly, we should start maintenance within 4-6 hours. If the temperature of the construction environment is not very high, it is usually enough to maintain the ground within 12-24 hours. The ground section calendar and maintenance should be timely, otherwise it is easy to lose too much water on the cement floor.

The cement that has just been laid basically begins to set after 24 hours, and the sprinkling time needs to be maintained for about 4 to 5 days. If the temperature is relatively high, this time can be extended to a week, and it is necessary to sprinkle water every day, up to several times a day. 2. If the current temperature is relatively high, every other.

One or two hours to sprinkle water again, to repeat many times a day, in order to effectively prevent the concrete surface cracking, in short, to keep the cement floor dry. 3. At the same time, you can't walk on it, and you can basically walk normally after sprinkling water for a day.

According to the difference in season and temperature, the full hardening of cement, that is, the curing period is generally 28 days in principle, but there is a large difference in the actual project, and the specific curing period should be determined according to the structure type, cross-sectional size, concrete number, cement variety, etc., combined with temperature, humidity, evaporation, curing process and other conditions.

In summer, the strength of ordinary concrete curing 15 days is enough to reach, and sometimes the concrete pavement conditions are poor in winter and even maintenance for two months are difficult to achieve sufficient strength, but no matter what concrete what maintenance conditions, the first 7 days must ensure that the insulation and moisturizing curing are maintained, and the structure with strict maintenance conditions can be cured with heated water or even pressure water.

This has something to do with Shen's early and middle-aged years.

In the summer, it needs to be maintained after 4 to 6 hours, and from late March to April and from August to November, it needs to be maintained after 12 hours or 24 hours.

The curing time mainly depends on the temperature and the strength of the concrete, and the temperature of the concrete should be reduced under the premise of ensuring the strength of the concrete (sprinkling water will not wash away the concrete surface);

When the weather is cold, the main thing is to ensure the strength of the concrete, so the curing time should be controlled after the strength of the concrete is enough to withstand the erosion of water.

Hello dear, happy to answer for you. The cement curing time is generally seven days, but it depends on the actual weather. For spring and summer, due to the relatively high temperature, the watering time of nutrient lead protection can be less than three days; In autumn and winter, due to the low temperature, the water cannot be poured directly on the cement surface, and it must be covered with a liquid layer film, and the curing time is at least seven days.

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