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PostPosted: Mon Aug 27, 2018 2:47 pm 
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I'm currently digging out foundations for my new shed and I've hit some white wet crumbly stuff. I've no idea what it is and not sure if it's natural or something the builders in 1955 dumped in my garden.

Any ideas?


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PostPosted: Mon Aug 27, 2018 4:30 pm 
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Argyll wrote:
or something the builders in 1955 dumped in my garden.


Could it be lime, or waste lime mortar? :dunno:


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PostPosted: Mon Aug 27, 2018 5:24 pm 
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I think you should keep it well wetted down just in case but I also think Arco is right. :thumbright:

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PostPosted: Mon Aug 27, 2018 6:09 pm 
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(Untested surmise) try putting a teaspoonful of the white stuff into a bottle top/jar lid and add a splash of vinegar (acetic acid). Watch and listen - alkaline lime will fizz in the acid.

(Tongue in cheek) if it starts giving off smoke & fumes, run like hell, it's unexploded ordnance! :lol: :lol:


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PostPosted: Mon Aug 27, 2018 7:03 pm 
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Chalk or someone had a bonfire years ago...…………….

or

its quick lime and its a shallow grave


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PostPosted: Mon Aug 27, 2018 7:06 pm 
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Bob225 wrote:
its quick lime and its a shallow grave


:lol: :lol: :lol:

Dig a bit deeper..........


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