Strongest low cost recipe?
I've never actually tried hypertufa, but all of the water garden books I read mention "reconstituted stone" which sounds to me like tufa.
I would like to make some forms and use the tufa as my edging around the pond. The finished product would be rock like while at the same time brick like.
Before I leap into this thing, I have some questions.
1) What's wrong with a 1 : 1 recipe? Half concrete, half peat. This is listed in some of the books I've read.
2) What's the cost vs the cost of pavers that are $0.83 for a 4" by 4" by 1.5" ? I'd need a lot of these pavers, which is why I'm looking into making my own.
3) Doing a search on colors, it looks like some of you mix the concrete color into your water when mixing the tufa, and some of you paint the concrete color on. Which lasts the longest? Or is it worth the lesser amount of color used to just paint it on?
4) What is the strongest recipe there is? I don't mind using a lot of cement, after all, the finished product is supposed to look like a rock. If using mainly cement for a project like this do you use all Portland cement? Or do you find another kind of cement?
Thanks in advance for any help.