Sunken slab – Construction Process & Benefits

A sunken slab is mainly provided to cover up or disguise drainage line and floor traps of a bath unit. The sunken slab is cast with a normal depth of 200 or 300 mm or any other based on the design.

This additional depth is utilized for arranging pipes and utility ducts. The sunken slabs are frequently utilized in the toilets, bathrooms and washing place.

Sunken slabs are chosen to be filled with light weight Expanded Clay Aggregate (ECA).

Given below, the construction process of a sunken slab :-

1. The concrete of the R.C.C. (floor and sunken slab) should be blended with a waterproofing material to obtain a solid, impermeable concrete.

2. Then cement and waterproofing material are diluted in water and sprinkled onto the RCC sunken slab. Then, a layer of plaster is arranged with a mortar plasticizer together with the cement mortar over the slab.

3. Brick are placed on the walls and plaster (prior to tiling) is done to the walls and floor with cement mortar blended with a mortar plasticizer.

4. Tile is secured with the floor and walls with non-shrink, water-resistant tile adhesives to protect the tiled area from water.

Also Read: Construction Cost Estimate Sheet

5. The sealants are used to seal the sanitary pipe joints. Sealants are made specially to seal sanitary joints securely to get rid of water leakage.

Benefits of sunken slab :-

All plumbing pipes are concealed within the slab.

The special plumbing fixtures are required to minimize noise at the time of using the bathroom.

To watch the complete tutorial, go through the following video.

Video Source: ArchiTech&Knowledge