Concrete hardening time: Heating oil tank & concrete slab

Cocat2517 · 10 Jul 2019

Hi
Not sure if this is the right section for this question?

How long after a concrete slab is laid can a heating oil tank be fitted on top of it?

Slab will be 100mm thick, 2.5x2.5. Tank will be a 1200l plastic low profile tank. It won't red filling straight away so will just be the weight of the tank itself.

Cheers

oilboffin · 11 Jul 2019

I always give it a couple of days I had a customer who did his own left it 2 hours then put the tank on and filled it from his old one,what a mess then asked me to sort it out guess what he got told.Bob

just pumps · 11 Jul 2019

oilboffin said:
I always give it a couple of days I had a customer who did his own left it 2 hours then put the tank on and filled it from his old one,what a mess then asked me to sort it out guess what he got told.Bob

He probably saw "Quick setting" on the bags and thought Happy days!

oilboffin · 11 Jul 2019

How many have fell for that one ? Bob

JohnD · 12 Jul 2019

Concrete hardens by a chemical reaction between the cement and the water. Hardening starts fast and gets slower after time. If you can keep it wet (spray with water and/or cover with a plastic sheet) it will reach about 50% strength and hardness in a week. Once it dries out it will stop gaining strength, even if you wet it again.

For the first day or so it is so weak that you can scratch the surface with a thumbnail.

https://www.google.com/search?q=con...samsung&sourceid=chrome-mobile&ie=UTF-8#imgrc

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Concrete hardening time: Heating oil tank & concrete slab

Cocat2517

oilboffin

just pumps

oilboffin

JohnD

DIYnot Local

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