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RicodJour RicodJour is offline
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Default Repair of door threshold

On Oct 9, 12:40 am, Kate wrote:
I hope I am explaining this properly.

My front door has a metal plate installed underneath the door, that is
mounted to the floor. I call it the threshold, and I hope that is the
proper term for it. Anyway, last year I mixed some powdered concrete
mix, and pushed it in underneath the threshold.


What were you trying to accomplish? Was the old one loose,
flexing...?

Now the cement is cracking, and I removed it in hopes of putting
something else besides concrete underneath the threshold plate. This is
the plate everyone walks on when entering my home.


The concrete shouldn't have cracked if it was mixed and placed
properly. Is it possible you're talking about mortar mix or just
plain cement? Mortar mix is cement plus sand and concrete has cement
and fine and coarse aggregate (sand and rocks/pebbles). Cement has
one ingredient: cement - no sand and no aggregate. If you used
straight cement it's no surprised it cracked. The aggregate is what
gives concrete its strength.

Let's analyze what you did before offering up a solution. How big is
the space you're trying to fill? It sounds like you didn't remove the
threshold before placing the mix - any reason why?

R