Got a few quotes on a patio (1700 sq ft) using stamped concrete.
One system colors the concrete before the pour then adds a release on top to add a second color. Color all the way through, but can 5 trucks match each other?
Second system pours grey concrete then adds color hardner on top. More consistent and varied color but was told the color is only on top so if concrete chips the color is gone.
Some use wire mesh to keep cracks from separating. Some use fiberglass additive for same reason and don’t use wire mesh because they say it can rust in the concrete and the rust color will bleed to the surface.
Anyone have any experience with concrete/stamped concrete? Any ideas on what I should be asking these contractors?
Replies
In the late 80's and early 90's I had occasion to use the same decorative concrete contractor here in NW Ohio. He added color to the truck at the site. He always used the same mix company. He used wire. He would broadcast different additional color on top of the slab prior to stamping. He recommended and would put you on a yearly sealer maintainance schedule, or at least offer to provide you with the sealer. His work was innovative to the area and top quality. The owner was on every job. His work still looks good. The only problem I remember was a thin top coat to existing concrete stairs. It has peeled due probably to salt used in the winter. I know these folks refused the sealer offer and probably didn't own a shovel. Color all the way through was a good idea for them. Like any concrete, preparation is important. The coloring adds a little more to the equation. You should get a good idea from references and maybe viewing their work. At the time, 5-6 bucks a foot, plus any non usual formwork, steps etc. How much was your bid?
Remodeling Contractor just outside the Glass City.
Quittin' Time
Bids ranged between $6.75 to 8 a sq ft, which I thought was quite reasonable. Included soil removal/grading. Stairs were seperate price based on size and design $700 to 1,800.
Pavers done right was about $12 (wife didn't really want). Real Bluestone was about $20 (wife really wanted)
Edited 3/25/2004 4:40 pm ET by steveodiy
Did my own walks myself after much experimentation and after reviewing the work of countless contractors.
Go with the mix in color as it looks more three dimensional than the hardener alone. Consider an acid stain to give added depth and color variation that better mymics nature. Avoid sealers that sit on top as they look like plastic on top of concrete. Try a penetrating sealer instead for a more realistic appearance.
Most important of all, look at actual jobs site samples of all the contractors you review. This stuff is a real art form and many folks are getting in the biz after just a weekend class.
BTW, if you are trying to mymic bluestone, take a look at the the seemlees textures, specifically the sierra seemless textures and the cleft slate.
http://www.thestampstore.com/examples.htm