Gap in concrete

[azanclay]

I previously posted a question on gap between my pool concrete decks. So there is a new gap that is getting bigger. See pictures. It looks like the soil is washed off below the gap and there are metal clips that look like they’re separating from the concrete. What should I do ? Should i add soil under the gaps and then seal with concrete?

 

[ajw22]

You pool or deck concrete is moving with the ground. You do not want to seal the gaps with concrete as that can put pressure and cause cracking. Seal the gaps with a flexible mastic like ...

DECK-O-SEAL - Polysulfide-Based Joint Sealant

Seal all cracks and joints with DECK-O-SEAL two-part, elastomeric, polysulfide-based joint sealant. DECK-O-SEAL is used for caulking and sealing joints subject to concrete movement to provide a firm, flexible, weather-tight seal. It is ideal for sealing joints around swimming pools, and for...

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Sikaflex® Construction Sealant

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[azanclay]

Thank you! Will try that.