Pouring concrete over an existing concrete driveway or sidewalk the same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk.
Pouring concrete over existing countertops.
You could drill holes into the existing concrete surface and insert steel pins and then the mesh on top.
Use my above recommendations and work experiences as a guideline to determine if your concrete is a good candidate or not.
Drill screws every 4 6 inches around the top of your mold.
Mark would simply pour or scoop some of the mixed ardex onto the countertop and then use the tape knife to spread it evenly over the surface.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly.
Lay it over the mold and using bolt cutters cut it to shape staying at least 1 inch from the edges of the form all the way around.
When i say bond the concrete you are lying on top off needs to be a rough finish like scabbled.
This was an experiment to pour concrete over the top of existing countertops.
You can suspend the steel mesh from these screws after you ve poured in half of your concrete.
I say after having poured them as long as you can lift a full five gallon bucket up to your head 15 20 times you are good to go or at least have someone handy who can.
I found it was easier to apply the sealer and finish by pouring it in a line instead of trying to spread out a puddle.
And you will need acetone to get it off your hands.
And i must say it has worked out so far.
Concrete over concrete by.
Thoroughly clean the steel mesh using steel wool and acetone.
Set in fixtures such as.
There are a couple cracks but all concrete cracks.
Work your way around the countertop covering the top surface as well as backsplash and front edge.
Now we have done several concrete countertops before and have removed the old countertop and poured a whole new one.
Concrete countertops are often the domain of professionals but you can create a concrete overlay on an existing tiled countertop with a few humble supplies and materials.
Engineer if you are laying pouring concrete over existing concrete there needs to be a bond.
The first coating will not completely cover the counter it should be a thin coat.
In most cases it s ok to pour new concrete over existing concrete.