terrazzo swimming pools

Any thing to do with swimming pools, fish ponds, or other man made structures which hold water (but not wells for drinking water).

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Re: terrazzo swimming pools

Postby thaifly » Fri Mar 12, 2010 10:04 am

fredlk wrote: Please ask Dozer for my private email-address and I will explain in detail. That goes for anyone who would like to know the story behind the agression.

gidday dozer..its the thai fly from mae rim..grateful if u could pass on freddys email address..its interesting gidday to all...its the thai fly from mae rim
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Re: terrazzo swimming pools

Postby jazzman » Fri Mar 12, 2010 10:37 am

fredlk wrote:
jazzman wrote: ... you could consider the perfectly flat, smooth-as-glass, 60 x 60 Granito® slabs. They are butt laid without any grout.

Thanks for the tip, but aren't they somewhat porous?
60 x 60 might also be a little cumbersome when doing a pool with all it's edges, an infinity-edge and waterfall, but I'll keep it in mind.

No more porous than any terrazzo that you would would be laying. Don't forget of course that the process of laying swimming pools tiles of any kind has nothing in common with laying normal floor or wall tiles, whatever tiles are used. Your pool specialist will know that of course and about the special concrete. Granito is very hard, but can be cut quite easily with a diamnod wheel, and diamond hole cutters for the inlets and outlets for the lights, maindrains, vac ports and eyeballs.
By the way, genuine congratulations on getting what seems to be an excellent price for your pool. If 800,000 covers everything, lock stock and barrel, you've done very well indeed. I know that the trend is for most specialist pool companies to be on the greedy side with their profit margins, but I don't know many who can offer a job that size at that price and do it properly. When a pool leaks through the walls or floor, there are only two solutions: live with it, or start over.
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Re: terrazzo swimming pools

Postby BKKBILL » Fri Mar 12, 2010 10:46 am

Enjoying your thread fredlk. I also think some posters spend to much time justifying their posts.

dozer I would also like to get fredlk’s private email address.
It's not who you know, it's whom you know.
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Re: terrazzo swimming pools

Postby fredlk » Fri Mar 12, 2010 11:28 am

jazzman wrote:By the way, genuine congratulations on getting what seems to be an excellent price for your pool. If 800,000 covers everything, lock stock and barrel, you've done very well indeed.

Now don't hold me to it. :shock: :D It was a guesstimate after the first design phase was over. The pool and its waterfall-overflow will also be used in the houses' passive cooling system. I don't think the price is too bad for a large pool with all the extras, but we will only know for certain when it is built and that might only be in 2012.
The architect was employed by a pool company in the past so he should know approximate prices.
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Re: terrazzo swimming pools

Postby dozer » Fri Mar 12, 2010 5:41 pm

thread clean-up. passed on emails as requested.
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Re: terrazzo swimming pools

Postby Nawty » Sun Mar 14, 2010 10:42 am

Can I get an email also ?? ...I don't care who's ...anyones will do..
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Re: terrazzo swimming pools

Postby grant » Mon Mar 22, 2010 6:09 pm

I've used terrazzo extensively in my house and my 18m x4m x 1.4m pool is also terrazzo. Terrazzo pools are becoming more popular in Phuket and I've seen several including several gorgeous pools and ponds at a hotel called Sala Phuket. My pool is s smaller version but otherwise identical to the large pool at Sala Phuket. The charcoal grey color is achieved using white cement mixed with black pigment and small black stone chips. The surface is polished to a very smooth finish and then sealed with a waterproof coating. The cost was 800 baht per sq. m. all inclusive. I chose this over Beadcrete because it simply looks better and since it has a smoother surface, it's easier to maintain. My pool has been in nearly a year and has three settling cracks on the outside walls. I've purchased concrete staples from the US for making the repairs. Rather than simply applying epoxy which in most cases is only temporary, concrete staples are a permanent solution and take only minutes longer to install. When you chose to use any type of concrete finish whether it's for floors or pools, you have to be willing to accept the fact that cracks are inevitable. Depending on the type of crack, location and visibility, you may be able to live with them. But structural/settling/shrinkage cracks after construction in the first 12-18 months are common.
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Re: terrazzo swimming pools

Postby fredlk » Mon Mar 22, 2010 6:31 pm

Thanks for the explanation.
you have to be willing to accept the fact that cracks are inevitable

That's what I was afraid of. I think I will just stick with plain white 10x10 cm. tiles.
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Re: terrazzo swimming pools

Postby Nawty » Thu Mar 25, 2010 8:00 am

How is terrazo applied to the surface ?

Is it similar to rendering a wall ?

If so, can it then be applied to any cement surface ?
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Re: terrazzo swimming pools

Postby grant » Thu Mar 25, 2010 8:27 am

It can be applied to any concrete/cement surface. In my house we used it for the pool, floors and also bathroom counters (pic attached). First, a screed layer is put down on top of the concrete slab/wall about 2-3 cm thick. For large surfaces like pools and floors, control joints are placed in the screed. Control joints are narrow strips of PVC, copper, stainless steel or aluminium. Control joints are put in place to control cracks that may appear. Ideally, if a crack appears in the terrazzo it will follow or stop at a control joint. In reality however, it depends on the source of the crack. If the crack is only in the surface layer of the screed or terrazzo, it may stop or follow a control joint as it's supposed to. But if the source is the underlying concrete slab, then the crack will continue straight through any control joints. Once the screed has been laid down, then a 4-5 mm layer of terrazzo is placed on top of the screed and troweled until smooth. Once dry, it is polished with a polishing machine. The polishing process can be very messy as water is continually applied to the surface during the process to keep the polishing pads cool. After polishing it is sealed and often waxed and polished to give it a glass like finish.
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Re: terrazzo swimming pools

Postby fredlk » Thu Mar 25, 2010 9:12 am

Once again, thanks for the excellent explanation.
Just out of curiosity, may I ask how much cracking of the underlying concrete you've experienced?
You already mentioned the swimming pool and so I would be interested to learn if this is happening in floors and other surfaces.
(If you don't like to answer this, you may ignore my question.)
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Re: terrazzo swimming pools

Postby jazzman » Thu Mar 25, 2010 9:17 am

Yes, it's a particularly messy job. The cost of purchasing the polishing machine is not a reasonable expense for a one-off job. On the other hand, the rental is also extortionate. The work is so specialised anyway, that it's not worth the risk trying to learn do it one's self, or to teach your wife's relations who are building your house, how to do it. The solution is to get the professionals in to do it. For a project the scope of Grant's, the cost was no object.

I have about 420 m2 of terazzo, with inlaid patterns, on the ground floor of my house near Avignon. The corners at the walls are rounded and rise to be a terazzo skirting board. This is excellent, and means we can just hose the floors down to clean them after a particularly messy dinner.

The work was done sixteen years ago and some of the floors are in very large rooms. there are now some hairline cracks appearing. I have been told by the company that did the floors that they can do an almost 'invisible mending' using a very hard expoxy filler of some kind, and repolishing. It has not been established whethe the cracks are due to subsidence (we are very close to the banks of the Rhône) or to expansion & contraction from temperature changes. During the year, the temperature ranges from 0° to 40°C.
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Re: terrazzo swimming pools

Postby grant » Thu Mar 25, 2010 9:59 am

fredlk wrote:Once again, thanks for the excellent explanation.
Just out of curiosity, may I ask how much cracking of the underlying concrete you've experienced?
You already mentioned the swimming pool and so I would be interested to learn if this is happening in floors and other surfaces.
(If you don't like to answer this, you may ignore my question.)
Fred.


In relation to the amount of terrazzo we had put down, we've had very few cracks. We expected some settling cracks in the pool because it's cantilevered and built on a sloping hillside but the cracks are easily repaired and not major. We have only one other crack across the kitchen floor which is white terrazzo. We plan to wait at least 12-18 months before repairing the cracks to allow the settling time to diminish.

Regarding your comment on the look of terrazzo in Thailand, the look is dependent on the choice of materials. If you do not want the reflective bits, you simply tell your contractor and he will supply an aggregate without them. We had a large exterior floor slab made from sand terrazzo. In place of stones, sand is used. The gold color of the sand mixed with the white cement results in a very pleasing cream colored floor.

And repairing terrazzo is not difficult but it can be messy. Concrete and terrazzo by nature are non-perfect materials and unlike tiles are affected by many things. Their color will also change with time and exposure to the elements. They provide a very organic look and the variations and imperfections are what attract most people to using them.
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Re: terrazzo swimming pools

Postby Nawty » Thu Mar 25, 2010 10:18 am

so theoretiacally, if you know those cement water urns that you see in every country garden for storing household water....could you cover them in terrazo ?
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Re: terrazzo swimming pools

Postby grant » Thu Mar 25, 2010 10:31 am

Absolutely. In phuket, there are many places now selling concrete/terrazzo pots for plants etc. as well They come in many colors and are far cheaper than their ceramic (mostly imported from vietnam) counterparts. Here is a picture of one I bought a few days ago for a friend for 1,500 baht. But they are very heavy.
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