[papercreters] Re: Best way to pour a 6" x 12" x 52" block?

The way to get consistency, accuracy and quick drying is to compress the blocks in the mould. They can then be demoulded immediately, and dry far faster.

For a 6" deep block I might compress the contents by 1", so a 7" deep mould, and add a lip onto the pressing down piece so it goes down to the exact right size when stood on.

Last time I compressed rapidly by 25%, but that takes a lot of pressure. The suggested 16% or so compression will either happen slowish or you'll need a whole lot of force.





--- In papercreters@yahoogroups.com, Daniel Ford <trendlinesystems@...> wrote:
>
> Dear Papercrete Group:
>
> I'm working on a project that requires a consistent 6" h x 12" w x 52" l block. I've assembled the molds and have filled the first one to the top and will backfill the shrinkage in a day or two. (see attached photos)
>
> My question is whether or not this is the best way to pour a 6" block or should I fill it half way on the first pour? I need to make 50 of these and the sooner the blocks dry the sooner I can complete the project.
>
> For background, my mix is 1# paper, 1# portland, 1# sand, .05 # Borax. I live near Cincinnati OH and our summers are hot and humid.
>
> Thanks
>
> Dan
>




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