In order for the concrete screed to serve faithfully for more than one decade, experienced craftsmen and owners strongly recommend using iron. The essence of this technology is to form a thin but durable protective layer over the concrete. It is he who will have to prevent and prevent accelerated wear of the material, as well as the appearance of all kinds of defects.
What you need: water, cement, primer, sieve, brush, large trowel
So, even an inexperienced owner without special training can implement the process of ironing concrete, if everything is necessary. The first thing you should know about this procedure is that it is performed strictly on still not dry, but already setting concrete. Depending on the grade of materials, as well as on the consistency of concrete, the optimal time for ironing comes at around 20-40 minutes after pouring.
The first step is to dust the setting concrete with dry cement through a sieve. You need to try to powder the surface as evenly as possible. The screed is immediately smoothed out with a wet trowel. If the area of iron is small, then you need to wait 10-15 minutes. If the processing area is large, then you can immediately proceed to the second stage of work, which completely duplicates the first - sprinkle the surface with dry cement through a sieve. After that we carry out with a wet trowel. We repeat the whole procedure 3-4 more times.
READ ALSO: People's Soviet truck ET-600, which cost three times cheaper than "Zaporozhets"
In order for the ironing to be as effective as possible, it is recommended to create a protective layer not thinner than 3 mm. In this case, the consumption of dry cement is approximately 5 kg per square meter.
When all of the above is done, you just have to wait. You can start walking on iron material in 24-26 hours. The maximum surface strength will only be reached after 28-30 hours. During work, do not allow direct sunlight to fall on concrete. It is best to do everything to create a protective layer in the evening.
>>>>Ideas for life | NOVATE.RU<<<<
Continuing the topic, it is worth reading more
about 5 useful tipsso that the concrete does not crack for as long as possible.
A source: https://novate.ru/blogs/170820/55704/