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Whacker blinding over T2

  • 02-12-2019 11:59am
    #1
    autumnalcore
    Registered Users, Registered Users 2 Posts: 838 ✭✭✭


    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.


Comments

  • #2
    sydthebeat
    Subscribers Posts: 41,837 ✭✭✭✭sydthebeat


    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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