Types of concrete slab

Types of concrete slabs in construction:-

There are 16 different types of Slabs in Construction. Some of them are outdated and some of them are frequently used everywhere. In this article i ll give a detailed explanation about an each slab where to use particular slab. Below are the types of concrete slabs.

Since this is a lengthy article, we have created a table of contents below for easy navigation.

1 1.Flat Slab:-
1.1 There are four different types of concrete slabs (FLAT SLABS)
2 2. Conventional Slab
2.1 1. ONE WAY SLAB
2.2 2. TWO WAY SLAB
3 3. Hollow core ribbed Slab
4 4. Hardy Slab
5 5. Waffle Slab
6 7. Pitch roof slab
7 8. Slab with Arches
8 9. Post tension slab
9 10. Pre Tension Slab
10 11. Cable suspension slab
11 12. Low roof slab
12 13. Projected slab
13 15. Sunken Slab
14 15. Miscellaneous Slab
14.0.0.1 Room Chajja or Loft
14.0.0.2 Kitchen Slab
14.0.0.3 3. Lintels
14.0.0.4 4. Sun Shade slab

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Hardy slab and where it use

HARDY SLAB :- These kind of slabs are generally seen in Dubai and China. This slab is constructed by hardy Bricks. Hardy bricks are hollow bricks and made up of concrete Hollow blocks are used to fill portions of the slab thickness it saves the amount of concrete and hence the own weight of the slab is reduced. This kind of slab has a more thickness when compared with the conventional one. The thickness of hardy slab is 0.27m. The method of installing Hardy slab is different from normal and it is clearly explained below: This is a one of the types of concrete slabs. The dimensions of Hardy brick is 40cm x 20cm x 20cm The process of execution is as follows: Step 1 : Formwork is arranged and then shutters are fixed on the formwork. Step 2 : Hardy blocks are placed on the shutter with one brick gap on the entire shutter. Step 3 : The gaps between the bricks are called as rib. Reinforcement is provided in a form of beam within the ...

Waffle slab and where to use

WAFFLE SLAB :- Waffle slab is a reinforced concrete roof or floor containing square grids with deep sides. This kind of slab is majorly used at entrance of hotels, Malls, Restaurants for good pictorial view and to install artificial lighting. This a type of slab where we find hollow hole in the slab when the formwork is removed. Firstly PVC trays (pods) are placed on shuttering then reinforcement is provided between the pods and steel mesh is provided at top of the pods and then concrete is filled. After concrete sets the formwork is removed and PVC pods are not removed. This forms hollow hole in it in which hole is closed at one end. The concrete waffle slab is often used for industrial and commercial buildings while wood and metal waffle slabs are used in many other construction sites. This is a one of the types of concrete slabs. Where to use? A waffle slab is a type of slab with holes underneath, giving an appearance of waffles. It is usually used where lar...

Mix design calculation for M50 grade Concert

CONCRETE MIX DESIGN EXAMPLE – M50 GRADE CONCRETE Grade Designation = M-50 Type of cement = O.P.C-43 grade Brand of cement = Standard best quality cement Admixture = Sika [Sikament 170 ( H ) ] Fine Aggregate = Zone-II Sp. Gravity Cement = 3.15 Fine Aggregate = 2.61 Coarse Aggregate (20mm) = 2.65 Coarse Aggregate (10mm) = 2.66 Minimum Cement (As per contract) =400 kg / m3 Maximum water cement ratio (As per contract) = 0.45 Concrete Mix Design Calculation: – 1. Target Mean Strength = 50 + ( 5 X 1.65 ) = 58.25 Mpa 2. Selection of water cement ratio: Assume water cement ratio = 0.35 3. Calculation of water content: Approximate water content for 20mm max. Size of aggregate = 180 kg /m3 (As per Table No. 5 , IS : 10262 ). As plasticizer is proposed we can reduce water content by 20%. Now water content = 180 X 0.8 = 144 kg /m3 4. Calculation of cement content: Water cement ratio = 0.35 Water content per m3 of concrete = 144 kg Cement content = 144/0.35 = 411.4 k...

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