Whacking awkward areas - Up a  slope

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STEVECUMMINGS
Posts: 2
Joined: Tue Jul 31, 2007 11:30 pm
Location: liverpoool

Post: # 21214Post STEVECUMMINGS

Could you offer any assistance when to trying to lightly compact bedding sand which is on a 70mm gradient over 1200mm .
Even on its lowest setting the whacker is too powerful and the sand goes everywhere - Is it ok to dampen the sand then whack , then quickly screed.
S Cummings

matt h
Posts: 607
Joined: Mon Jul 09, 2007 11:14 pm
Location: gosport

Post: # 21216Post matt h

if your subbase isnt compacted correctly, your sand will wander. Suggest you run wacker over sub base a bit longer now the weather is getting drier and then try again with the sand:) how deep is your screed? what is it going to take in the way of weight?
general builder, maintenance engineer, gas and plumbing installations, extensions etc

STEVECUMMINGS
Posts: 2
Joined: Tue Jul 31, 2007 11:30 pm
Location: liverpoool

Post: # 21217Post STEVECUMMINGS

Thanks for the response .

My sub base is at least 4" thick .
I intend to use the problematic area to drive a car up .
The rest of the job is fine as it is within the normal slope guidelines , its just this larger slope that is causing me grief .
S Cummings

matt h
Posts: 607
Joined: Mon Jul 09, 2007 11:14 pm
Location: gosport

Post: # 21274Post matt h

get the subbase right and the rest will follow suit. I t is better to spend more passes with the plate than to give up early, Once the bed is compacted the slope will be pretty much plain sailing
general builder, maintenance engineer, gas and plumbing installations, extensions etc

Tony McC
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Post: # 21339Post Tony McC

If the sand is 'blowing everywhere', it is too dry and should be dampened.

A laying course is supposed to have an optimal moisture content of 8-13% water. At this time of year (in normal years) there is a problem with laying course materuial becoming overly dry, which is why you sopmetomes see mpiles of sand sheeted over with a tarpaulin, in an attempt to retain some of the mositure.

Use a hose to saturate your stockpile and then leave it for a couple or three hours to 'drain' and it should be fine.
Site Agent - Pavingexpert

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