- One-Way Flat Slab. ...
- Two-Way Flat Slab. ...
- Kitchen Slab. ...
- Sun Shade Slab. ...
- Lintel. ...
- Sunken Slab. ...
- Cable Suspension Slab. ...
- Pre-Tension Slab.
How many types of concrete slabs are there?
There are several slab types, including one-way spanning slabs , two-way spanning slabs, flat slabs, hollow core slabs, ribbed (one-way joist slab), waffle slab(grid slabs), flat plates, composite slabs, hardy slabs, bubble deck slabs, slabs on grade and precast slabs.
What are slabs in construction?
Definition: a molded layer of plain or reinforced concrete , flat, horizontal (or nearly so), usually of uniform but sometimes of variable thickness, and supported by beams, columns, walls, other framework, or on the ground.- ACI Concrete Terminology.
Which type of slab is mostly used?
The most commonly used precast slab types are channel and double T types . Typically, it is built on reinforced concrete castings on top of a profile steel base. During the construction phase the decking acts as a working area and formwork, and also acts as an external reinforcement during the life of the slab.
How many types of slabs are there and how do you design it?
- JOIST SLAB (RIBBED) It consists of a floor slab, usually 50 to 100mm thick, supported by reinforced concrete ribs (joists). ...
- TWO WAY SLABS. ...
- FLAT SLABS. ...
- FLAT PLATES. ...
- WAFFLE SLABS. ...
- HOLLOW CORE SLAB. ...
- HARDY SLAB. ...
- BUBBLE DECK SLAB.
What are the two types of slab?
- One-Way Flat Slab. ...
- Two-Way Flat Slab. ...
- Kitchen Slab. ...
- Sun Shade Slab. ...
- Lintel. ...
- Sunken Slab. ...
- Cable Suspension Slab. ...
- Pre-Tension Slab.
What are the 3 types of foundations?
There are three main foundation types; basement, crawlspace, and concrete slab . A fourth, but a less common option, is wood foundations.
What are the 4 classification of reinforced concrete slab?
Concrete slabs, therefore, are further classified into one-way joist slab, flat slab, flat plate, waffle slab, hollow core slab, precast slab, slabs on grade, hardy slab, and composite slab .
How thick is a normal house slab?
A slab foundation is made of concrete that is typically 4′′–6′′ thick in the center . The concrete slab is often placed on a layer of sand for drainage or to act as a cushion. Houses built on a slab lack crawlspaces, and there is no space under the floor.
What is an S class slab?
Class A – This denotes very ‘stable’ ground – mostly sand and rock, not affected by moisture. Class S – Slightly reactive soil, slight movement due to moisture . Class M – Moderately reactive soil, moderate movement due to moisture.
What is the function of slab?
A slab is a structural element, made of concrete, that is used to create flat horizontal surfaces such as floors, roof decks and ceilings . A slab is generally several inches thick and supported by beams,columns, walls, or the ground.
What is RCC slab?
Reinforced Cement Concrete (RCC) is a composite building material consisting of structural concrete reinforced with a reinforcing material like steel. The most common reinforcement used is steel, due to its complimentary properties and it is called steel reinforced cement concrete or simply Reinforced Cement Concrete.
What is the purpose of a moment slab?
Structural Capacity
The moment slab reinforcement shall be designed to resist forces developed at the base of the barrier . The torsion capacity of the moment slab must be equal to or greater than the traffic barrier moment generated by the specified TL impulse load (TL-3, TL-4, TL-5) applied to the top of the barrier.
Where is slab used?
In high rise buildings and skyscrapers , thinner, pre-cast concrete slabs are slung between the steel frames to form the floors and ceilings on each level. Cast in-situ slabs are used in high rise buildings and large shopping complexes as well as houses.
How expensive is a suspended slab?
Businesses that carry out concrete slab work charge an average of $60/m2 for their services. However, the thickness of the slab and the size of the area always affect the cost of the job. Thus, the price goes from $50/m2 to $85/m2 .
What is concrete slab on grade?
A slab-on-grade is a type of shallow foundation in which a concrete slab rests directly on the ground below it . A slab-on-grade foundation usually consists of a thin layer of concrete across the entire area of the foundation with thickened footings at the edges or below load bearing walls in the middle of the building.
