Removing Fiberboard From Concrete

metomeya

I might be using the wrong term, but the fiberboard stuff that they put in concrete cracks.

I'm trying to get it out between the concrete patio and the house.

But I'm having a really hard time. Any tips?

ron schenker

Just leave it there
Seriously though, why do you want to remove it?

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Don't worry, the baseboard will hide it!

Zero Punch

Bust out the patio. I often have to remove some of this expansion material when preparing floors for VCT we either cut it on a vee from both sides at column pads. Not practical with a wall on one side then I use an old wood chisel but I don't try to remove all of it just 1/2 below the surface enough to level the floor with floor patch.

metomeya

Well the fiberboard is the badstuff, it bowed from the water and some of it is popping out.

Anyways we solved the problem by taking out what we could by hand, and removing enough so we could put in the self-leveling cement filler (polyurethane based i think) great stuff, we added sand to it while it was still wet, should last for a very long time.

bryan305

probably shoulda just put in some backer-rod and caulked the joint instead...The expansion joint is in there for a reason.

Rich Turley

Sounds like that is what he did. Polyurethane is flexible.


Rich

metomeya

Ya, i did, took the stuff that warped too much out, and put backer rod, and left the stuff behind where i could as backer rod

really looks nice now, glad i did it