1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Remove cement off reclaimed slabs.

Discussion in 'In the Garden' started by rogerde, 15 Aug 2015.

  1. rogerde

    rogerde

    Joined:
    18 May 2012
    Messages:
    14
    Thanks Received:
    1
    Location:
    Worcestershire
    Country:
    United Kingdom
    Looking for some advice for cleaning mortar off back off slabs.
    I've been offered some slabs that have been carefully lifted from a neighbours back yard. Slabs are in great, near new condition. They were laid but never got pointed but when they laid them they used spot bedding method and there are spots of mortar on the back of slabs.
    What's the easiest way to remove these spots without breaking or chipping slabs.
    They are giving me the slabs for nothing so if it takes a while to clean it off its fine.

    Appreciate any advice.
     
  2. Crystalclear

    Crystalclear

    Joined:
    23 Jun 2015
    Messages:
    487
    Thanks Received:
    70
    Country:
    United Kingdom
    Nice neighbours.

    You'll find it easy if you uses a club hammer and a sharp flat chisel.

    Lay you chisel almost flat to the slab, and start with soft blows with the club hammer, and build up as you see fit. The larger the angle, the more chance you'll split the slab in half, so 90deg, hammering into the slab area is a no no!

    I'd recommend a SDS hammer drill, as good as they are, you need to have a hands on feel as you hammer, so less sds , more hammer and chisel.

    http://www.screwfix.com/p/forge-ste...s&gclid=CPa268jwqscCFc7HtAodJiIPyg&kpid=7025C
     

    Attached Files:

    • Like Like x 1
  3. Sponsored Links
  4. rogerde

    rogerde

    Joined:
    18 May 2012
    Messages:
    14
    Thanks Received:
    1
    Location:
    Worcestershire
    Country:
    United Kingdom
    Cool, thanks, I don't mind doing a bit of work to clean them up being as they are free. There's loads of slabs and the layout is an exact match to my back garden so they will just fit a treat. They've only been down 2yrs 6 months.
    Got my project for the rest of summer.

    Thanks again
     
    • Thanks Thanks x 1
  5. r896neo

    r896neo

    Joined:
    23 Feb 2007
    Messages:
    4,767
    Thanks Received:
    779
    Location:
    Belfast
    Country:
    United Kingdom
    In my experience the best thing by far is an old hatchet. It is weighty enough that you can strike with it and dont need to try hold two things at once.

    How easy it comes off depends on the flags but sandstone for example will be very straight forward. As crystal says the angle of attack will affect on your chance of breaking them.

    Best technique is to hold the flags vertically with one edge on the ground and strike down on them. laying the flag flat on the ground and hammering will be more likely to break them.
     
    • Thanks Thanks x 1
    • Like Like x 1
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page