Can you mix concrete with dry concrete?

Jan 25, 2008 · I have NEVER seen dry concrete mix poured into a posthole without adding water after. Even on those wet, rainy days in the field, we still carried large drums of water to add to the concrete. I once asked why, and was told that if you leave it dry to absorb water "on its own", the post may shift before it sets, or it may not set evenly.

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The less water you use to mix the concrete (somewhat dry but workable) the stronger the concrete mix. Accurate concrete mixing ratios can be achieved by measuring the dry materials using buckets or some other kind of measuring device. By measuring the cement, stone, and sand, you will have a consistent concrete mix throughout your entire ...

When you mix concrete properly, it ends up with a consistency that has been compared to cookie dough. To test the consistency, use the blade of your shovel like a knife and try to cut a shallow channel through the surface of the premix concrete. If it is too dry, the channel walls will be crumbly; add more water and mix the concrete further.

This is what really happens underground. No mix concrete

The intermediate posts can be set with layers of premixed and water, with some mixing for consolidation. There is nothing wrong with a little water in the holes for pre-wetting before the post installation. After the initial set (a day or so), the more water that gets dumped in the area, the better the concrete will be.

L) of water per 80 lb (36.3 kg) bag of concrete. For other bag sizes, use Table 2 to determine water content. HAND MIXING INSTRUCTIONS • Empty concrete bags into a suitable mixing container • For each 80 lb (36.3 kg) bag of mix, add approximately 6 pt (2.8 L) of clean water • Work the mix with a shovel, rake or hoe and add water as needed ...

Sep 03, 2020 · When you're mixing and pouring the concrete, you’re gonna have to add more water or it's not going to mix properly. If you're doing a concrete foundation for a retaining wall or a post, the concrete can be more wet because the finish is not going to matter.