What should I do if the toilet caisson is backfilled with stagnant water?

Treatment method: waste residue backfill, the advantage of this method is that the construction is simple, cheap (generally about 300 yuan), the disadvantage is that I am afraid that a certain part of the floor slab is overweight, and the general good property is not allowed, this method will be gradually eliminated.

Before overhead, the old structure needs to be waterproofed once. In fact, it is also a cushion.

Treatment, and then there is 20 45mm mortar leveling, slope layer - waterproof layer - cement mortar.

Waterproof protective layer - brick surface layer. (Plus the old structure is waterproof once, which is a double waterproof treatment.)

Ceramsite. Backfilling, this way is the best way, but it is also the most expensive (more than 800 yuan). Moisture-absorbing and moisture-proof ceramsite fill, broken bricks and fine sand filling.

In fact, it is the cushion treatment, after the broken bricks and fine sand are filled, it is necessary to do a layer of 50 100mm thick concrete slope layer - 20 45mm mortar leveling - waterproof layer - cement mortar waterproof protective layer - brick surface layer. The moisture-absorbing and moisture-proof ceramsite landfill can be changed to fly ash mixed with broken brick landfill.

Use the caisson drain to dredge the way and caisson the toilet through the caisson drain seepage hole.

The stagnant water is discharged into the main riser, so that the toilet caisson is in a relatively dry state, and prevents leakage into the lower neighbor sleeve and the wall of this floor. The caisson drain has the following features:

This drain can prevent odor, clogging and overflow.

The black waterproof protective ring is easy to remove after the waterproof test, just cut it with scissors.

Solution: It is inevitable that there is water at the bottom of the foamed cement backfill for the entire industry, and there is no water accumulation at the bottom in strict accordance with our standard specifications.

<> the preparation before backfilling: firstly, the caisson should be fully cleaned first, and then the inlet and outlet pipes should be solidified and dred, so as to avoid the movement of the pipeline position when backfilling, which is not conducive to removal or water ingress. Then there are also proportional requirements for backfill materials, the ratio of ceramsite and cement is generally five to one, and fully stir it with water, prepare the above can enter the actual work of backfilling, the stirred material should be paved, and fully compacted, leaving no gaps or bubbles, and finally can be covered with barbed wire or other materials to avoid material loss, and finally wait until the air dry can lay the floor tiles.

Keep the toilet window open, ventilate well, be careful not to let the floor drain plug, remember to close the faucet when you are not using water, and buy a water-absorbing rug to put at the bathroom door.

Use the caisson drain to dredge the way to drain the water from the toilet caisson through the seepage hole of the caisson drain. Allow the toilet caisson to dry.

Solution: The secondary platoon should be reserved and not all blocked. The secondary drainage pipe is generally a 50 or 75 water pipe, find a section of the wire pipe with a mask or non-woven fabric wrapped 4 6 layers and put it at the lowest end of the nozzle, and the rest of the pipe is blocked with plugging spirit.

After drying out later, the water layer at the bottom 1 2 or so can be slowly drained away from the nozzle. Before construction, put 5 8 bricks at different positions at the bottom of the caisson, and wait for the suspended layer produced after the water layer is discharged in the later stage, these bricks can also play the role of overhead support, so as to be foolproof.