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Water-Proofing Limestone


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#1 MathMan

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Posted 04 March 2004 - 08:14 PM

Hi there everyone,
I was just wondering if there is anyway to water proof limestone. I have just built myself a pond and it has huge boulders and limestone rocks around the edges and everytime I fill it, it seems to drop to the level of the lowest of the limestone blocks.I would really like the water level to be higher :) I am sure that there aren't any leaks and that the water is just getting absorbed by the limestone. (btw it is the rough limestone not the nicely cut and shaped sort and I would like it to keep its nice appearance as well) I was thinking of bondcrete. Anyone got any suggestions?
Cheers
Alex.



#2 saudukar

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Posted 04 March 2004 - 08:42 PM

Lime stone is poreous(sp?).
Meaning it has hundreds of tiny holes in it.
You would have to cover the entire water bearing face of the lime stone to make it water proof. this would obscure the limestone from view.
Most people use it as a coverstone in ponds to hide pond lining. But the pond lining is folded underneath to provide protection. Limestone has no water retention powers what so ever.


Nature commits no errors; right and wrong are human categories. | Perth Joondalup, WA | saudukar.owns.it



#3 MathMan

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Posted 04 March 2004 - 08:53 PM

hi saudukar,
yeah i know its porous, but is there anything that can be painted over the limestone so that it will be water-proofed?
alex.



#4 saudukar

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Posted 04 March 2004 - 09:48 PM

Bondcrete is used for flat surfaces and mostly cement to stop lime leeching into the water.
You could probably apply some surface mixture of cement to the limestone give a flat surface then use bondcrete.
Anything else like epoxy resins/plastic/chemical bonding agents would taint the water.


Nature commits no errors; right and wrong are human categories. | Perth Joondalup, WA | saudukar.owns.it



#5 anchar

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Posted 05 March 2004 - 05:49 PM

There are also two other products; one called Pondseal (by Clearpond) and the other called Dampex. From what I can ascertain, they appear to contain the same formula (essentially watered down PVA glue). These are designed to waterproof rockwork, however the porosity of the limestone may hinder this application too.

merjo



#6 MathMan

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Posted 07 March 2004 - 07:20 PM

Thanks for the advice guys :)
Alex.



#7 Synadontis Angelicus

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Posted 08 March 2004 - 02:42 AM

i had this idea why dont u cut the limestone tops out, like up from the base of the layering. ie like an icebergs top, then layer the bottom of the cut with some concrete dunno what type. then just place the top back on. and let it set though this would require empying the pond. Reason for this idea is if the limestone has lil holes all over the tunnels would be interupted by the concrete and there fore the water level would be a constant as no water can escape through the limestone.

Just some wacked idea i came up with

Daniel






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