Stained blocks

All forms of block paving, brick paving, flexible or rigid, concrete or clays, new construction or renovation
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seany
Posts: 2
Joined: Sat May 20, 2006 9:17 pm
Location: s.wales

Post: # 12100Post seany

hi there chaps
i had 2.5 packs of block paving delivered and ive had to barrow them to the bottom of my garden in pouring rain,the blocks are now starting to dry and have white staining on them,this wasnt apparent when they were wet.is this normal
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Stuarty
Posts: 637
Joined: Sat Mar 18, 2006 7:35 pm
Location: Edinburgh

Post: # 12110Post Stuarty

that will be efflorescence, its is normal in cement based products due to the chemical reactions that take place. More info Here
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seany
Posts: 2
Joined: Sat May 20, 2006 9:17 pm
Location: s.wales

Post: # 12118Post seany

thanks for the info stuarty great help
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