Artificial rock work as a design medium (article #1 of 10)

[Timothy L.]

Matt,
Great article idea, looking forward to following the series.
There is an idea I have been batting around that I would like to get your opinion on- from a technical/feasibility angle.
In the part of North Carolina where I live the most common material used for rip-rap is white speckled granite. It has become a visual plague on our landscape and seems to be used nearly everywhere. Its bright color always contrasts badly with the surrounding landscape no matter what the context. Because of economics there really is no other cost effective material to use (except maybe used concrete, which would be worse).
Do you think it would be possible/feasible to “paint” the existing rip rap with a colored concrete/gunite slurry? And if so, do you think this could be an cost effective fix to “naturalize” the existing granite. I have never worked with this medium so I was hoping you could share some of your perspective. I am thinking earth tone browns, greys and lichen greens, not much detail so long as the stuff looks good from 10-20 feet away it would be worth it.

What do you think?
thanks

[Matthew E Wilson]

Absolutely, we do it all the time out her on the West coast. It is so easy I am embarrassed sometimes to tell people that a very wealth homeowner paid me $20K to color all of the chipped boulders at his new estate. It took me and a helper 2 days with two tank sprayers. The secret concoction that my homeowner never saw the container of was
Scofield acid stain “BLACK) http://www.scofield.com/concretestain_colorchart.html

1 or 2 applications is all it takes. The black when applied to granite in one coat looks dirty brown which is exactly the color you are looking for. Don’t forget to use polypropylene tank sprayers or the acid will eat trough the steel type. Also price your coloring based on the alternative of removing the real rock. That is, don’t give it away based on the actual time and cost. Perception is reality – Good luck : ) Matt

[Matthew E Wilson]

Tim, you might enjoy perusing the forum under ‘professional practice’ titled Sales & Marketing. You might get some new ideas.

[Timothy L.]

Wow! Thanks for the recipe- who would have thunk? And thank for the tip below.

[Richard L. Winget]

another option is go to this site http://www.natinaproducts.com it easy to simulate desrt varnish especially if you are dealing with natural rock. The problem with acid stains is neutralization, it will continue to corrode, it is acid.I realize this was done in 2008. They make a superior product to acid stain. Acid stains are good when used correctly and on bare concrete unsealed surfaces, you can even use acrylics on top of them to get many excellent effects. I hope this helps even though it is late!

Respectfully

Richard L. Winget

[D. Eric Bowyer]

We often incorporate artificial rock into our projects throughout the world. We are moving away from using large amounts of it due to cost etc. We are doing more modern contemporay designs but I am sure we will always have some rock or artificial rock into our designs. You can view some of our projects utilizing artificial rock and real stone in my photo albums.

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