Wet sand between blocks - How do i cure this?

blcky67 · Post: # 19044Post **blcky67** Wed May 23, 2007 10:53 am

part of my drive in front of my house is a bit shaded and since i had my drive laid a few weeks ago and kiln dried sand was put between blocks. some patches take forever to dry out.there is no standing water lying in these areas and i have drains fitted as well. can you help?

Paverman Dan · Post: # 19101Post **Paverman Dan** Thu May 24, 2007 9:47 pm

Are the pavers wet too or just the sand in the joints?

Edited By Paverman Dan on 1180039693

blcky67 · Post: # 19116Post **blcky67** Fri May 25, 2007 8:13 am

thanks for reply. sand is wet and edge of blocks.i think there might be building sand between blocks. i am going to wash this out and put kiln dried sand in and see. what else do you think it could be? there was never a drainage problem before i had my drive laid. do you recomend sealing the drive in a few months?

Fri May 25, 2007 4:54 pm

picture please!
LLL

blcky67 · Post: # 19142Post **blcky67** Fri May 25, 2007 9:17 pm

ok i will post a photo. i will wait till it rains then starts to dry out. cheers

Post: # 19144Post **seanandruby** Fri May 25, 2007 9:31 pm

what if we have a drought?

maybe a bucket of water thrown over will do?

blcky67 · Post: # 19168Post **blcky67** Sat May 26, 2007 7:03 am

well as i live in scotland i wont have to wait too long for rain.think sunday looks good. :p

Post: # 19187Post **Tony McC** Sat May 26, 2007 2:40 pm

Damp jointing sand can result from sub-surface water being wicked (wicked as in a candle wick, not wick-ed as in evil) to the surface. If this problem does not disappear, it suggests the laying course and possibly the sub-base are not free draining and are actually retaining water. The only 'escape route' for trapped moisture is bvia the joints, driven by evaporation with the jointing sand acting as a conduit.