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Anonymous users2024-01-24This one doesn't work.
1. Most of the construction waste is stone concrete, etc., and its weight is relatively heavy, and for some bathrooms with a relatively large sinking height, it will increase a lot of weight, and it is generally not very safe.
2. The void ratio between the garbage is large, then the storage capacity is small, and in the future use, the pressure above will cause the ground to sink, which will lead to the detachment of the floor tiles.
3. The water absorption rate of construction waste is high, and the water vapor in the bathroom is often heavier, which will make the water accumulate below all the year round and damage the waterproofing of the ground.
Sunken toilets are generally backfilled with sand or low-strength concrete, with a thickness of more than 200mm; As for the bearing capacity, the design has been considered, so there is no need to worry.
Find your local building quality control station, preferably in person. >>>More
It is recommended that the ceramsite backfill. >>>More
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The thickness of the mortar is at least 5 cm, otherwise the effect is not good.