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Posted: Thu Oct 18, 2007 7:31 pm
by Rachelle
HI,
I'm wondering if anyone can give me a suggestion as to why there seems to be damp areas showing at the point of the joints of my patio. We had this work done in August and the patio was sealed in September. Since then there are patches of white which i beleive will dissapear in time and after rainfall, what i think are damp patches have shown up. I've gone back to the firm who carried out the work but can't get any explanation.
Can anyone help ?
Thanks
Posted: Thu Oct 18, 2007 8:54 pm
by James.Q
get back in touch with the contractor ask them about blooming all to common a problem with concrete imprint
Posted: Fri Oct 19, 2007 7:20 pm
by Rachelle
Can you give me some idea on what i should expect
the contractor to tell me ? What would cause this ?
Thanks
Posted: Sat Oct 20, 2007 8:31 am
by matt h
excess moisture in the mix,prewetting before imprinting the weather at the time..ie damp conditions, etc etc see main site ref pic
Posted: Sun Oct 21, 2007 2:25 pm
by Tony McC
It's almost impossible for us to comment on projects we can't see. If you have damp aggregating around the expansion joints, then the first question I'd ask is whether these joints were ever sealed with mastic or similar?
Posted: Sun Oct 21, 2007 10:31 pm
by James.Q
never known a imprint job to be sealed with a mastic joint .but would like to see one
Posted: Thu Oct 25, 2007 4:12 pm
by Tony McC
I've seen one or two, but I mean "one or two". They are all supposed to be mastic sealed, but very few PIC installers ever bother.
Posted: Thu Oct 25, 2007 9:39 pm
by Rachelle
Hi,
I'd like to attach a picture but dont' know how to !!!
Can you let me know how and i'll send one of the patches and the sealed joints
Thanks
Posted: Fri Oct 26, 2007 8:52 am
by IanMelb
Rachelle wrote:Hi,
I'd like to attach a picture but dont' know how to !!!
Can you let me know how and i'll send one of the patches and the sealed joints
Thanks
Have a look at this link
http://ext.pavingexpert.com/cgi-bin....;t=4485
Ian