First time trying concrete mold. Too much water or too little vibration?

All recommendations are welcome. In particular how to vibrate a two part mold without it breaking apart. I did not weigh the mix and water, but i suspect i used too much water. Also added about 2% plasticizer.

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1 Comments

comador@lemmy.world · 1 pts · 303d

All those bubbles tells me you're putting too much water and not enough cement.

Also, dump the plasticizer entirely or reduce to 1% for now, at least until you've got a good set of samples as the plasticizer can also cause bubbles to form and sit during vibration.