Why is my deck slab bubbling?
Bubble deck slab is a method of virtually eliminating all concrete from the middle of a floor slab, which is not performing any structural function, thereby dramatically reducing structural dead weight.
What is a structural concrete slab?
A concrete slab is a structural feature, usually of constant thickness, that can be used as a floor or a roof. A slab-on-ground is supported on the subsoil and is usually reinforced with reinforcing bars or welded wire mesh.
Is code for Bubble deck slab?
concrete between the outside air and the rebar in solid slabs. reinforcement according to the IS Code 456-2000 & IS 10262:200.
How do you make a bubble for a deck slab?
Bubble Deck is based on a new patented technique- the direct way of linking air and steel. Void formers in the middle of a flat slab eliminates 35% of a slabs self-weight removing constraints of high dead loads and short spans.
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Understanding the Concept of Bubble Deck.
| Sr. no. | Content | Quantity (kg/m3) |
|---|---|---|
| 4 | Coarse aggregate | 1242.21 |
| 5 | Weight density | 2489.05 |
What is BubbleDeck?
BubbleDeck is a precast concrete flooring system which makes floor slabs lighter by incorporating large, hollow plastic balls in a lattice of steel.
What is a bubble slab?
Bubbledeck™ is a voided structural slab design that uses recycled plastic spheres sandwiched between layers of reinforcing steel lattice to introduce “voids” into the two-way slab.
What are the 3 types of slab foundations?
3 Types of Concrete Foundations – Slab on Grade, T-Shaped, Frost Protected – Concrete Network.
How thick is a structural slab?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
Is bubble deck slab used in India?
Bubble deck slab has not got widespread in India because most of the design is based on the DIN codal provision and lack of BIS codes and specifications regarding the use of technology which is discussed only in IRC SP 64-2005, meant for bridge superstructures.
Why do we use deck slabs?
Slabs made with steel decking have high structural strength compared to traditional concrete slabs. This creates a high strength-to-weight ratio which allows for a massive weight reduction.
Who invented bubble deck slab?
Jorgen Bruenig
Bubble Deck is the invention of Jorgen Bruenig in the 1990s, who developed the first biaxial hollow slab (now known as Bubble Deck) in Denmark. This new prefabricated construction technology using the Bubble Deck slab is recently applied in many industrial projects in the world.
What is BubbleDeck technology?
BubbleDeck is the patented integration technique of linking air, steel, and concrete in a two-way structural slab. Hollow plastic balls are inserted into the slab and held in place by reinforcing steel.
What are the disadvantages of bubble deck slab?
Disadvantages of Bubble Deck Slab
- The thickness of the slab is limited.
- Skilled labor required.
- The conventional slab is less deflects than Bubble Deck Slab.
- Load carrying capacity less than the conventional slab.
- Sometimes the thin concrete portion may be broken during transportation.
What is the strongest foundation for a house?
Foundations are mostly constructed from strong material so they can hold the house in place even during earthquakes and cyclones. Therefore, they are generally made up of concrete which is the strongest construction material.
What is the most common slab?
1. One-Way Flat Slab. One of the most common slab types in construction projects, a one-way flat slab uses between 4 and 6 inches of concrete to withstand heavy loads. The name of this slab refers to the support structure.
What is the maximum thickness of slab?
What is the maximum thickness of RCC slab? According to Indian standard rcc concrete roof slab thickness in residential building construction is 4 inches (100mm). Use of 5″ to 6″ (125mm to 150mm) is recommended if the concrete will receive occasional heavy loads.
What is minimum thickness of slab?
The minimum thickness of the slab shall be 125 mm.
What is deck slab in building?
Deck slab-a slab of concrete used to make the base for the roadway, railway, pedestrian walkaway, etc.
How does bubble deck work?
BubbleDeck is a precast concrete floor system which makes floor slabs lighter and stronger by incorporating large, hollow plastic balls in a lattice of steel.
Where bubble deck slab is used in India?
[3] Bubble deck flat slabs are used in parking decks, commercial buildings, hotels; cinema halls where span between two columns has to be more. The main objective of this is to study performance of Bubble deck flat slab. To estimate the amount of concrete reduced as result of plastic balls introduction into flat slab.
Do slab foundations have problems?
Like anything else in this world, slab foundations can move, break, crack, or be damaged over time. Three main conditions lead to foundation settlement and damage to your home: expansive clay soil plus climate inconsistency, under-slab plumbing problems, and poor initial construction.
How long do slab foundations last?
Foundations. Poured concrete block bases and slab foundations will last for a lifetime, 80 to 100 years or more, given they have been constructed with precision. The termite proofing of the base, 12 years, provided the chemical barriers remain intact.
What are the 3 most common types of slab foundations?
What Are The Three Slab Foundation Types?
- A Typical Slab With Traditional Footings. This is the most common slab foundation type, and is also typical of homes with basements.
- A Floating Slab Foundation.
- A Monolithic Slab Foundation.
Which slab thickness is minimum?
Minimum thickness of slab
Minimum thickness of rcc slab is 4″ or 100mm, 3″ for side walk, 4″ for patios, 6″ for driveway and minimum 4″ thick for parking. It will be restricted to 4 times the nominal size of aggregate.
What is the minimum reinforcement in slab?
The mild steel reinforcement in either direction in slabs shall not be less than 0.15%. In case of columns minimum reinforcement shall not be less than 0.8%.