Sean's Concrete tank Photos

Thank you for the progress reports,details and pictures....love your project...wishes of success.
 
It is tomorrow. :lol: Where the pics??
 
The sketches I did before I started Building. The one of the Sump was done some months ago and been running now for couple of months:

SeanConcreteTank10reg.jpg


SeanConcreteTank11reg.jpg


SeanConcreteTank12reg.jpg


SeanConcreteTank13reg.jpg


SeanSumpTank02REG-1.jpg
 
sean_koekemoer said:
I built a base that could be strong enough to hold 03 tonnes of weight.
Worked out the reinforcing I needed. The difficult part was not to have deflection on the base as I was worried about the front glass panel. The best I could get was 0.2 mm short time (01 year or less) and 04 mm deflection- long time( 10 - 15 years). But it was difficult to get almost zero deflection as I did not want to build support beams below the slab that would geopordise space for future refugiums etc. But the latter eventually outweighed the 1st and to my dismay had to put extra beams (In time i'll work around that)

quote]

Will that help Dean, these drawings was what I originally worked from, unfortunately had to change
Click to expand...
 
very interesting , i read earlier in the thread that you plan to fibre glass the inside are you not worried about the adhesion to raw cement, secondally with the properties of
fibre glass are you not worried about UV damage to it, if i could make a suggestion, a good water based epoxy would do the job even though it is also resin based, its just a hell of a lot hardier, plus the colours are great to work with. A liquid epoxy rein also tends to seap/ penetrate the cement and would make a better water proof structure.

IMHO :)
 
Tridan said:
very interesting , i read earlier in the thread that you plan to fibre glass the inside are you not worried about the adhesion to raw cement, secondally with the properties of
fibre glass are you not worried about UV damage to it, if i could make a suggestion, a good water based epoxy would do the job even though it is also resin based, its just a hell of a lot hardier, plus the colours are great to work with. A liquid epoxy rein also tends to seap/ penetrate the cement and would make a better water proof structure.

IMHO :)
Click to expand...

Thought about it, but fibreglass strenghten the tank more and with epoxy coating you get a slimy algae growing on it eventualy, Fibreglass do not need to stick to the concrete as it is used just to form a shell, it cannot contract as the pure waterpressure will keep it in place, also "seals" 100% better than epoxy (I work with epoxy on a regular basis)

The fibreglass I am using as well as the resun, is not your off the shelf type as the normal resun release too much toxins and the matte is weaved wrong for this purpose.

I had to phone around (swimming pool places and boating places included) a lot cause I do not know much about fibreglassing except that I have 02 boats that is fibreglassed and that it itches a lot.
But I got hold of an elderly man who owns "Trimcraft" Boats and he did some ponds and Fibreglass tanks before. Unfortunately these fibreglass and resun are much more expensive than the normal type as I almost fell on my back when he got the price - R2500.00 for 7.5m2
 
Sh** that is a heavy price, cool hope it works, just had a experience with cement and resin before were it did not bond to the wall at all, peeled off, and warped, ( distorted ) and eventually cracked and leaked.
I have done a few tanks with epoxy and i know all about the diatoms that love the finnish. ( hate the diatoms ) well i hope it all works out well, one of my clients is looking into building a built in tank so will keep a eye on the thread. Good luck.
 
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