What Is Sunken Slab | Advantages & Disadvantages Sunken Slab

What Is Sunken Slab Advantages & Disadvantages Sunken Slab

What Is Sunken Slab (Sunk Slab)?

What Is Sunken Slab (Sunk Slab)

The sunken slab is one of the familiar and adaptable ways to maintain architectural design in especially the washroom, as well as laundry areas where water drainage systems or pipes installed below the floor or tiles.

This system is accepted to provide an easy way to install sanitary products and built eye-catching views in those areas. Furthermore, all pipe systems remain below the floor.

Hence extra care required while constructing a sunken slab; otherwise, dampness or water leakage may happen in the future.

This kind of construction require well trained or experienced workers to tackle all aspects very well by considering future visions related to the maintenance of those areas.

Also Read: 19 Different Types of Slabs in Construction | What Is a Slab | Types of Slabs

Why Sunken Slab (Sunk Slab) Need for Bathroom?

Why Sunken Slab (Sunk Slab) Need for Bathroom

The concrete of the R.C.C. should be mixed with a waterproofing material to get a denser, watertight concrete.

Sunken seating areas aren’t just for the interior of the home but may be great outdoors.

Sunken slabs are used in the bathrooms, toilets, and washing place where we have our washing machines.

Applications of Sunken Slab (Sunk Slab)

Following are the main applications of a sunken slab

The main area where this slab is adaptable is the washroom or in some unique architectural design where sanitary arrangement takes place.

In some cases where the inverted beam is there during the main slab at that time, this sunken slab is the only way to keep the top surface usable without any obstacles of beam height. This kind of situation may find during staircase landing.

How to Built Sunken Slab (Sunk Slab) or Points Keep in Mind While Construction:

The areas where the sunken slab adopted in mostly watery places hence, water drainage systems preferable to make it waterproof.

Use of plasticizer during construction to stay away from dampness problems in the future.

Also Read: What Is Dampness | Requirements of an Ideal Material for Damp-Proofing | Materials Used for Damp-Proofing

Advantages & Disadvantages Sunken Slab (Sunk Slab) :

Advantages & Disadvantages Sunken Slab (Sunk Slab)

Here, the advantages and disadvantages are as follows.

Advantages of Sunk Slab

All plumbing pipes are concealed inside the slab.
Need special plumbing fixtures to reduce noise during usage of bathroom.

Also Read: Monolithic Slab I Monolithic Definition I Monolithicfooting I Monolithic Slab Foundationl Monolithic Slab Foundation Design L What Is a Monolithic Slab L How to Form a Monolithic Slab

Disadvantages of Sunk Slab

The decrease in the height of the slab.
Slab, waterproofing and brick bat takes more time to construct as compared to Sunken Slab.


What Is Sunken Slab?

Sunken slab. Sunken slabs are cement-based slabs used for waterproofing. It is a kind of slab casted to prevent water leakages in the underground pipes. The use of having a sunken slab is to conceal all the pipes below the floor.

Repairing a Sunken Concrete Slab

You have three options: coat the sunken section with a sand-and-cement mixture to make the surface higher, raise the sunken section using a process called mudjacking, or raise the sunken section using expanding polyurethane foam. Patching fixes the safety issue without costing much, but the patch is sure to show.

Sunken Slab Details

A sunken slab or sunk slab is provided below the normal floor level in bathrooms, toilets, and laundry areas, where pipes or drainage systems are laid. It is constructed with the purpose of concealing all the pipes below the floor level to maintain the aesthetic appeal of the space.

How to Fill Sunken Slab?

Place a plaster layer with cement mortar on the sunken slab. Use non-shrinkage, waterproofing adhesive to fix tiles for flooring and walls to improve the tiling area’s waterproofing. Fasten joints of sanitary pipes with specially constructed sealants to avoid water leakage.

Sunken Slab Vs Normal Slab

It is a type of slab provided below the standard floor level in toilets, bathrooms, and laundry where a drainage system is installed, known as a sunken slab or sunk. A sunken slab is provided to conceal all the pipe below the Standard floor level to maintain the space’s aesthetic appeal.

Sunken Concrete Slab

Mud Jacking is a common term for lifting sunken or settled concrete. Mud jacking can lift a settled concrete slab by pumping a grout through the concrete and pushing it up from below. The process is sometimes called “slab jacking” or “pressure grouting”.

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