Kiln dried sand

[Hawk]

with autumn already here and winter approaching fast it can be difficult to sand and wack blockpaving, as kiln dried sand and moisture dont make a great combination, just wondering
if anybody had any secrets to sanding up at this time of year,
or is it a case of just waiting until the blocks are dry enough

[Pablo]

Slurry the sand into the joints with water after final compaction.

[jonsey24]

i feel i will encounter this problem too with brushing in kiln dry sand into my newly laid path this week as the weather is horrific here at the minute.
pardon my ignorance but what is the method you drescribe as slurrying and whats involved

[Dave_L]

Basically wet the sand up and allow it to flow into the joints.

Never had to do it, though.

[lutonlagerlout]

darn sarf its fairly dry ,but i have done it once
you wack the blocks sans sand ,then wash the sand in with a fairly fine mist on the hosepipe
too heavy and you are blowing it out
it takes a while to get used to but it helps you out when it rains
LLL

[mickg]

did it today due the the blocks being wet form the heavy rain of last night

pour a full bag of kiln dried sand onto the paving and totally wet the sand through whilst brushing it forwards and back into the joints then brush forwards to remove the surplus from the face of the paving and at the same time follow up with the hosepipe set to medium spray to push the remaining sand forwards too

you will get 98% of the joints filled this way but under no circumstances put the vibrating plate anywhere near the block paving for at least a couple of days

[Tony McC]

Wet jointing of CBPs is an everyday task on the continent, but it's never really caught on in Britain and Ireland, and so we have the nonsense of customers being denied access to their new paving for a couple of weeks or more while the contractor waits for a break in the rain. Probst actually have a machine designed specifically to assist wet jointing.

Mick's methodology is right, but we often used a hose to help keep the sand flowing. Going back to a point I made in a previous post today, if the laying course is properly free-draining, you can put the plate compactor onto the jointed pavement after about 5-10 mins, but if in doubt, leave it over night.

What you will find is that wet jointing results in virtually no settlement of the jointing material over the next few weeks, and any blocks that are damaged by the compaction (cracked or spalled) are absolute buggers to remove because the jointing holds them incredibly tight, as though they have been down for years, not minutes!

[jonnyboyentire]

top tip for kiln dried - use a squeegee like the type thats good for Rompox, what a breeze it was, and the joints were filled to bursting, just needed a final brush off.