For reinforced concrete floor slabs, when holes are made in the floor to install equipment pipes and similar items, how is waterproofing achieved at those gaps?

2017-10-23View Original

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For reinforced concrete floor slabs, when holes are made in the floor to install equipment pipes and similar items, how is waterproofing achieved at those gaps?

Reply #22017-10-23

Make it a little higher, like a cofferdam

Reply #32017-10-23

This post was last edited by zdl1966 on 2017-10-23 at 17:59: Build a small cofferdam first, and then seal the gaps

Reply #42017-10-24

Waterproofing adhesive should be added to the concrete at the sealing areas.

Reply #52017-10-24

Where gaps have formed, drill holes along those gaps and inject a sealant.

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