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Whacker blinding over T2

autumnalcore · 2019-12-02 10:59:42

So after laying permeable hardcore are you supposed to whacker the sand blinding. It seems to me a significant amount of sand would be vibrated into the permeable gaps.

02-12-2019 10:59am

#1

autumnalcore

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So after laying permeable hardcore are you supposed to whacker the sand blinding. It seems to me a significant amount of sand would be vibrated into the permeable gaps.

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Comments

#2 02-12-2019 3:03pm

sydthebeat

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autumnalcore wrote: »

So after laying permeable hardcore are you supposed to whacker the sand blinding. It seems to me a significant amount of sand would be vibrated into the permeable gaps.

no, the idea of the sand blinding is to lessen the risk of sharp corners of the hardcore piercing the radon membrane.

once the hardcore is whacked, its fine.

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