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Participant

Join Date: Aug 2008
Location: Saudi
Posts: 2

Underground Water Tank Specification?

08/06/2008 4:25 PM

Please comment on slab and wall thickness, rebar size and number?

Need minimum requirements.

Cheers

Underground cement water tank
Length Width Hight Cubic meter
3.4 3 2 20.4
Labor
Concrete cost Total
11.132 45 500.94
350 kg /cubic meter resistant
Steel
Steel de. Bar/ton kg/m
Ø 10 135 0.617284
Ø 12 94 0.886525
Ø 14 69 1.207729
Ø 16 53 1.572327
Description Ø Bar/ton Place Qty Length Width T. meter T. kg
Top slab top Ø 14 69 bed 7 3.4 3 71.4 86
Ø 12 94 cover 6 3.4 3 61.2 54
Top slab bottom Ø 14 69 bed 7 3.4 3 71.4 86
Ø 12 94 cover 6 3.4 3 61.2 54
long wall top Ø 12 94 bed 5 3.4 2 34 30
Ø 10 135 cover 5 3.4 2 34 21
long wall bottom Ø 12 94 bed 5 3.4 2 34 30
Ø 10 135 cover 5 3.4 2 34 21
Short wall top Ø 12 94 bed 5 3 2 30 27
Ø 10 135 cover 5 3 2 30 19
Short wall bottom Ø 12 94 bed 5 3 2 30 27
Ø 10 135 cover 5 3 2 30 19
Bottom slab top Ø 14 69 bed 7 3.4 3 71.4 86
Ø 12 94 cover 6 3.4 3 61.2 54
Bottom slab bottom Ø 14 69 bed 7 3.4 3 71.4 86
Ø 12 94 cover 6 3.4 3 61.2 54
Sum 754
Sum +5% Wast 792
cost per kg 1.47
Total 1,161
Concrete Qty Length width Hight Sum
Top slab 1 3.4 3 0.2 2.04
Bottom slab 1 3.4 3 0.2 2.04
long wall 2 3.4 2 0.2 2.72
Short wall 2 3 2 0.2 2.4
Clean concrete 1 4.6 4.2 0.1 1.932
sum 11.132
Sum + 15% wast 12.8018
cost 60
Total 768.108
Summary
Description Cost Per
Labor 501 0.206118
Steel 1,161 0.477834
Concrete 768 0.316048
Total US$ 2,430
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#1

Re: Underground Water Tank Specification?

08/06/2008 10:27 PM

Hello Houzaifa

Are you yourself making up this Table?

What type of ground will the tank be buried in?

How deep will the tank be buried?

Reply with

Kind Regards....

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Participant

Join Date: Aug 2008
Location: Saudi
Posts: 2
#4
In reply to #1

Re: Underground Water Tank Specification?

08/08/2008 4:03 PM

Are you yourself making up this Table? Yes but unfortunately it badly displayed

What type of ground will the tank be buried in? Heavy glay

How deep will the tank be buried? 2.55 meter for the botton of clean concrete.

Cheers,

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Engineering Fields - Civil Engineering - New Member Philippines - Member - New Member

Join Date: Jun 2008
Location: bahrain
Posts: 18
#2

Re: Underground Water Tank Specification?

08/07/2008 6:26 AM

what i've seen here is a quantity calculation and cost analysis. if you are reffering to structural design of a concrete water tank design, design criteria is needed for the design analysis.

comments on your work:

  • there is no available 14mmØ (Ø14) deformed bars in the market except if you will order special sizes from the manufacturer.
  • don't forget to include waterproofing additives to your concrete.
  • if necessary, use sulphate resisting concrete for underground structures.
  • include cost for waterbars (construction joint) between the bottom slab and wall or on any construction joint at the wall. but if you can complete the base and the wall by continous pouring of concrete - forget the waterbar.
  • check the soil characteristic if damp proofing (polythene sheet & fiber reinforced bituminous paint) is required on external surfaces of concrete beneath the ground.
  • take a consideration of using cementitious crystalline waterproofing on internal concrete surface (Base & walls)
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Guru

Join Date: Feb 2006
Location: Piney Flats, Tennessee
Posts: 1740
Good Answers: 23
#3

Re: Underground Water Tank Specification?

08/07/2008 1:24 PM

Contact the local builder of septic tanks many people use them for water storage here.

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