Papercrete mixing, forms & finals

[waterwart]

I'd like to see you toss one up in the air and let it hit concrete. I wonder what would happen?

[briangunn21]

and what do you do with these?

[dustyflair]

what's the mix amounts? I want to make some...Thanks

[breezebro]

A good start! How much you want for that car? I'm looking for a good dog too.

[neverwasapunk16]

Fake

[sgtpepper1138]

huh?? fake??

[allesleiwand]

or simply stop making stuff, where you can´t control so many parameters who are essential to proof compressive strengh. bricks are made for walls. and walls are made for carrying your roof. and your roof is made to protect you against nature and not to fall down on your head because bricks brake away. oh. my god.

[NSResponder]

You apparently have a misconception of how portland cement works. Cement doesn't harden by drying, it hardens by setting up in a chemical reaction, which the water makes possible. By placing your forms in the sun uncovered, you're not getting as much strength as you could have.

If you can't get your molds in the shade, then cover them with plastic or damp burlap after the initial set.

-jcr