Waterproofing of toilets in building dormitories

1. It doesn't matter much, but there is. That is, it can be understood that the worse the waterproof performance of the base layer (waterproof layer), the higher the requirements of the waterproof process, and vice versa. The waterproofing performance of concrete is better than that of prefabricated slabs.

2. Cast-in-place should also be waterproof. Theoretically, cast-in-place is very waterproof, but the concrete cannot be so dense, so in order to ensure that there is no leakage, there is still a waterproof construction process. There are even cast-in-situ parts (such as the roof of the Venerable) that a rigid waterproof layer, that is, a high-quality concrete layer after a few centimeters, and this layer of concrete is regarded as a waterproof layer.

In today's technologically advanced world, this may seem like a stupid approach.

3. The waterproofing of the toilet part is also divided into flexibility and rigidity, but it is more flexible, that is, when the cast-in-place floor slab is cast, the toilet part deliberately sinks to a certain height, that is, more than ten to twenty centimeters (like a square basin), and then uses flexible materials (all kinds of domestic, imported, hard, soft, thin, thick membranes) to paste it all over. Then fill it with waste residue and make the floor. To put it bluntly, it is deliberately made into a basin, and then the inside of the basin is full, and after the water filling test reaches no leakage, it is almost flat with the floor of other rooms.

When pasting, it is generally more than the final height of the ground to be reached, in order to prevent water from leaking from the joints between the ground and the wall, that is, the surrounding is higher for the sake of safety.

That's what I'm familiar with, and there are a lot of new processes that are very different from that. Waterproofing construction largely depends on your requirements, that is, there is money for a practice, and there is no money for a practice. In many cases, the membrane can also be replaced by cement slurry with waterproof performance (cement mixed with waterproof additives), that is, cement slurry is used to "paste" instead of "paste".

Addendum: It is estimated that you asked this question because the house did not leak well, which aroused your curiosity, and the house built according to the regular process is not very leaky, and it is generally very troublesome to fill the leak, but because there is no one to warrant, so you can only admit that you have a little back. The essence of waterproofing is to wear a raincoat on the part of the house that will accumulate water, and then paste it so that you can't see it.

This may be a bit like making a chicken called a chicken, the house is a chicken, the waterproof layer is the leaves of the chicken, and the outermost soil is the plastering (cement mortar) for making the floor (copying). What you see is soil, and inside is the leaves, and in the leaves are chickens.

The toilet is a place with a lot of water, and it has nothing to do with the type of structural panels you have, you have to do waterproofing, and the common waterproof construction practice is.

1. To find the slope layer, it is common to do it directly on the floor slab, using 1:3 cement mortar, the thinnest is 20 thick, and the slope is not less than 1%.

2. There are two main materials for the waterproof layer, 1 is modified asphalt membrane, and now the most is SBS

One is a polymer membrane, and now the commonly used is polyethylene waterproofing membrane.

3. On this, a 20-thick 1: cement mortar protective layer is being made.

You are talking about the problem, anti-water? It should refer to the waterproof treatment of the wall, and the general requirement is to make 400 mm high on the wall (non-bathroom), and the bathtub is generally not less than 1 meter. Bathrooms are at least meters high, and some are up to the top of the wall.

If it is waterproof, whether it is cast in situ or prefabricated, it must be waterproof, and the height is not less than, and its principle and function is to use waterproof materials for waterproof treatment, so as not to cause leakage.

3533 is right. Anti-water is not a waterproofing layer.

Whether it is cast-in-situ or prefabricated, it must be done, which is a water retention. There is a section of the lower part of the wall that corresponds to the circle around the toilet that is made of concrete, not brick.

The height I am used to doing 120.

According to the design code, it is not necessary to be the same as the floor slab, because the toilet steps in the dormitory are generally plastered with MU red bricks. The function of anti-water is to keep a certain amount of water in the sanitary ware, so that the toilet and the entire sewer pipe are blocked by the water, reducing odors. This is also the reason why a portion of the water is left behind every time the toilet is flushed.

If it is waterproof, it must be done, and the waterproof membrane on the wall around the bathroom should be turned up at least 300mm

If it is said that the water is reversed, it refers to the concrete belt with the same wall thickness and height of 180mm under the bathroom wall, which is mainly to prevent the water of the bathroom from seeping into the room from under the wall, and the water is used to retain water, in order to ensure the effect of water retention, it is generally poured at the same time as the floor slab. In the case of prefabricated slabs, it should also be done, mainly to clean up during construction to ensure that the concrete belt and the floor slab are tightly combined.

In a word, any floor bathroom must be waterproof!

Water reversal is to prevent the waterway from reversing out the effect of the prefabricated plate to press the water to produce pressure, which is not easy for the waterway to run out.

Our side is made of prefabricated boards, and then caulked and painted, and the now filled ones can't be dismantled because they dry slowly, which affects the progress!

It must be poured in situ and synchronized with the backwater.