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hostile_washbowl t1_j6gas99 wrote

Reply to comment by md9918 in Can this concrete be salvaged? by md9918

If you mix it too stiff or too loose is when you run into strength issues. It looks like you only use about half the water needed.

Sorry but I’m gonna have to blame the user on this one.

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Banana_Ram_You t1_j6gm0a2 wrote

I don't know anything about concrete, but given the existence of the post, and the tray of mix looking like sand... I can only concur

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KRed75 t1_j6h1jbz wrote

That looks about right with the water. The less water the stronger the concrete will become when fully cured. It shouldn't have any dry mix, however.

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hostile_washbowl t1_j6h1lwv wrote

If it has dry mix then it doesnt have the right amount of water

Anyways looks like they added water to the mix versus adding the mix to the water which results in a bad blend

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KRed75 t1_j6h99um wrote

It's mixed correctly in the photo. OP just didn't work the surface enough with a trowel or float to smooth it out.

Here's how properly mixed concrete should look which is what I'm seeing in OPs photos. If it's visibly wet it has too much water.

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hostile_washbowl t1_j6i22ev wrote

Yep. Based on that video, OP used too little water. The dry mix is not fully saturated (or ‘damp’).

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Engatsu t1_j6j8x4t wrote

So don't add water to concrete mix for max strength... Gotcha

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KRed75 t1_j6ke9m9 wrote

Not sure how you got that out of my post seeing as I said It shouldn't have any dry mix.

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