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Forum: Project Avalon General Discussion

03-10-2010, 11:12 PM

Replies: 27

Strange things in the rain...

Views: 11,387

Posted By twoRone

Re: Strange things in the rain...

LOL...on your pics.. some of the growth appears to be liken.. (grows on porous materials in damp shady areas) the stuff in earth tone colors... the white stuff? I don't know.. especially the stuff...

Forum: Project Avalon General Discussion

03-10-2010, 10:51 PM

Replies: 27

Strange things in the rain...

Views: 11,387

Posted By twoRone

Re: Strange things in the rain...

that's not the same stuff... the crystal type formation and the powdery substance in the original poster's pics are efflorescence ... it comes out of cementous material just like the pics are...

Forum: Project Avalon General Discussion

03-10-2010, 07:50 PM

Replies: 27

Strange things in the rain...

Views: 11,387

Posted By twoRone

Re: Strange things in the rain...

I see this all the time... as a masonry contractor/general contractor..
it is what the trade calls "efflorescence" . it appears often after rains .. it is derived from impurities in concrete,...

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