Stonework flaking after repair

Question

Exterior stonework that's been repaired with cement is now flaking away. Does the cement need removing?

Nicholas · Answer

Cement pointing may be harder than the stone if it was done a few years ago the  cement pointing will cause the softer stone to crack and allow water  and frost to penetrate the surface of the stone, Might be worth looking at repointing with lime mortar.

Nathan · Answer

Is the stone flaking or the cement ? If its the stone then that's just a bad choice of stone, stone tends to get brittle and flake when it's irroded with weather but that takes years , or was just a bad choice of stone witch was all ready flakey before instalation  if its the cement flaking then the mortar mix is to weak or....it was put in on a cold day and hasent set properly it will need re doing hope this helps

Julian · Answer

Probably needs to be repointed as mix may have been too weak

Kenny · Answer

Remove the cement and use a lithomix with colour to restore

Paul · Answer

It's probably that the stone has been layed wrong there is seems and Greenstone it depends which way they laid it there is actually a right and a wrong way to lay stone amateurs come to mind

Gino · Answer

could be a number of reasons but would cut back existing and re do repair

Stonework flaking after repair

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