Concrete and mortar mixer - GIF

Concrete and mortar mixer.

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Previously:

Cement mixer tumbles down ravine - GIF
Concrete left in mixer truck to cure - GIF
Electric concrete mixer - video

The guy who pumped my septic tank had one just like that, but with a longer shaft.

First nice idea. Beats a holey hoe. Second, this is parging mortar, maybe brick or block mortar. Not concrete. There's no aggregate. Don't see why it wouldn't work with concrete.

Mark