technical information Technical information

 
 
Slab - 210 Spanwright
Pre stressed 150 & 200mm
Services & Openings
Do's & Dont 's


Slab Properties

Bearing Requirements
 

 
  • self weight of slabs is approximately 2.5kn/m2
  • 1.0m3 of grout will cover approxomately 75m2

 
 
   
 
Loading requirements  
 
  • Bs 6399 gives the required load carrying capacities for various applications.
  • Some common applications are :
    Housing - 1.5kn/m2
    Garages - 2.5kn/m2
    Industrial - 5.0kn/m2
  • Note: Wall loads are in addition to the above.
 
Clear Span (m) Finish Floor Type
Timber Batten Non-Structural Screed
1.90
16.0
14.5
2.15
13.9
12.5
2.40
12.3
10.8
2.65
10.9
9.5
2.90
9.8
8.3
3.15
8.8
7.6
3.40
9.7
8.3
3.65
8.3
6.4
3.90
8.7
6.7
4.25
6.7
4.8
4.40
6.8
4.8
4.65
5.3
3.2
4.90
4.0
2.0
5.00
3.5
1.5
5.10
3.0
-
5.20
2.5
-
5.30
2.1
-
5.40
1.7
-
Bar sizes increase at various stages. heavier steel can be used to increase the load carrying capacity
  Span Load Table
(heavy applications)		  
 
Depth of Structural Screed Clear Span (m)
4.0
4.5
5.0
5.5
6.0
6.5
50mm
10
9.8
8.5
6.6
3.4
1.2
75mm
10.2
10
8.7
8.6
6.2
3.1
100mm
10.4
10.1
8.8
8.7
7.6
5.1
  • For details of floor finish types see finishings page.
    Tables give load bearing capacity in kn/m2
 
     
 
Slab Properties- 210 Spanwright



    slab 210

 
 

 
  • self weight of slabs is approximately 2.9kn/m2
  • 1.0m3 of grout will cover approxomately 75m2

 
 
   
 
Loading requirements  
 
  • Bs 6399 gives the required load carrying capacities for various applications.
  • Some common applications are :
    Housing - 1.5kn/m2
    Garages - 2.5kn/m2
    Industrial - 5.0kn/m2
  • Note: Wall loads are in addition to the above.
 
Clear Span (m) Finish Floor Type
Timber Batten Non-Structural Screed
2.90
13.5
12.9
3.15
13.0
11.5
3.40
11.5
10.0
3.65
9.6
8.1
3.90
8.0
6.5
4.15
11.2
9.7
4.40
9.8
8.3
4.65
8.2
6.7
4.90
6.3
4.8
5.25
8.8
7.3
5.40
6.7
5.2
5.65
6.5
5.0
5.90
4.8
3.3
6.00
4.2
2.7
6.10
3.8
2.3
6.20
3.3
1.8
6.30
3.0
1.5
Bar sizes increase at various stages. heavier steel can be used to increase the load carrying capacity
  Span Load Table
(heavy applications)		  
 
Depth of Structural Screed Clear Span (m)
5.5
6.0
6.5
7.0
7.5
50mm
9.1
8.5
6.6
3.6
1.5
75mm
7.7
8.0
8.0
5.2
2.7
100mm
7.7
7.9
8.0
7.0
3.9
  • For details of floor finish types see finishings page.
    Tables give load bearing capacity in kn/m2
 
     
 
Pre Stressed - 150mm deep Pre Stressed - 200mm deep
    pre stressed 150

pre stressed 200
 

 

 Span Load Table
(housing applications)

Span Load Table
(housing applications)
 
Clear Span (m) Reinforcement
Standard Heavy
3.0
23.9
37.9
3.5
17.0
27.1
4.0
12.5
20.2
4.5
9.4
15.4
5.0
7.1
11.4
5.5
5.5
8.5
6.0
4.1
6.4
6.5
2.8
4.8
7.0
-
3.6
7.5
-
-
8.0
-
-
8.5
-
-
 
Clear Span (m) Reinforcement
Standard Heavy
3.0
37.8
67.5
3.5
27.0
48.8
4.0
20.0
36.6
4.5
15.3
28.2
5.0
11.8
22.3
5.5
9.3
17.9
6.0
7.4
14.5
6.5
5.9
11.7
7.0
4.7
9.2
7.5
3.7
7.4
8.0
-
5.9
8.5
-
4.7
 
 
 

Cantilever

 cantilever





Slabs can be cantilevered up to 1.2m to accommodate stair openings.
Hanger Bracket hanger bracket



Hanger brackets can be fabricated to support slabs around openings.
Services services
  Slabs are commonly used at ground floor and service openings can be accommodated.
Wallplates wallplate
  Where slabs are used in a dormer bungalow, the wall plate is usually fixed to the slab as indicated.
 
   
    Do's & Dont's
   
Do  
 
  • Read and adhere to all job specific customer information.
  • Use only specified mix when grouting/placing structural screed.
  • Allow one cubic metre of grout for every 75m2 flooring.
Don't  
 
  • Leave floor ungrouted.
  • Leave out any specified steel.
  • Load unpropped floors.
 
 
props

grouting

 Slabs must be grouted before work proceeds.
  Slabs must remain propped until grout has cured and all construction loads have been removed.
  Tel: +353 42 9744811 Email: info@wright.ie
 
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