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Posted: Wed Oct 22, 2008 5:11 pm
by lilacshark
Am in the process of building a drive using 200x100x50mm blocks. Am at the stage where I am laying the edge course which lies against the wall of my house. The subbase is down and wacked. Have just laid down the concrete & blocks but am not convinced they are going to set in place. I think the concrete will set ok but am worried that the bricks wont stick to it. Just wondering if there was any advice to ensure they stick? I wet each block & I hammered in place with lump hammer. ???
Posted: Wed Oct 22, 2008 6:07 pm
by Tony McC
The blocks don't need to 'stick' to the concrete. It's function in that location is to prevent the blocks settling downwards. They can't move back because the wall is there and, once you;ve completed the job, they won;t be able to move forward because the rest of the paving will be in the way.
At free edges it's pretty much the same except that the function of the wall in preventing 'backwards' movement is performed by the concrete haunching.
Posted: Wed Oct 22, 2008 8:00 pm
by lilacshark
Ahhhhh I see! Thankyou so much for clearing that up for me. 
Posted: Wed Oct 22, 2008 9:25 pm
by Mikey_C
you might want to try using a rubber mallet, to avoid spoiling the face of the block.
Posted: Thu Oct 23, 2008 1:59 pm
by lilacshark
Thanks Mikey