First try at making concrete pots
It's been 24 hours since I put concrete into oiled up plastic pots. After drying I got the mold of the pot used.
I turned the plastic pots upside down and they popped out easily. I could still smell the wd40 I used to grease them with.
Not all are equal, I used lime in two or three of them in varying amounts. Seems using too much makes the concrete soft, I think I need to use alot less on the next try.
Surprisingly the concrete mixed with grass seeds hardened up nicely. But the concrete was not as workable.
I think I need to use less than 1/4 of the sand or lime. Or maybe the pots need more than 24 hours to dry.
One of them broke apart right away, and the other using alot of lime I could not even remove from its form without it cracking.
One of the pots with very little lime hardened well but I found it hard to work. I rewatched some of the videos on how to do this and I think their concrete is much more fine without alot of rocks.
Looks like the concrete still needs to dry a little more. It felt solid but seems it's a little wet on the outside.
I will check on them again tomorrow but I think I need to use mortar instead of concrete. And buy some sand to use instead of lime.
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Looks like a few more experiments are required. I guess the weather can affect it too. I expect you will work it out soon.
Yeah next is to try mortar, I think all the little pebbles and rocks in the cement make it not cast very good.
Cold weather will slow down the drying thats for sure. I need to do these projects when the days are in the 50s F otherwise it gets too cold to set right.
I don’t know if this will be useful to you:
for 1 part of cement - 2 parts of water.
Freezing takes 2-3 days.
Smaller pots will dry faster, while larger ones will take longer.
It will take a week to dry completely. During this time, you can wet the pot once a day with a damp sponge to darken the final color.
Sometimes the product gets cracked when removed. It is very simple to eliminate such a defect - just cover the crack with fresh mortar.
Thanks alot for this, good point about the mortar keeping it hydrated. That is something I will need to remember to do. Ill need to buy some mortar to try this out. As the cement was too rocky.
Very cool. I love the posts you do Solo. I learn a lot.
Thanks dude, I am happy to share my projects.