Papercreters: [papercreters] Re: New To Papercrete

Sunday, July 20, 2008

[papercreters] Re: New To Papercrete

I'd love to add to the Grancrete/MgO discussion, but sadly... I've
got nothing of consequence to add. I've never used the stuff. Sam
seems to have covered it pretty well.

I do want to welcome samcrow to Papercreters though.

Pretty darned good first post. Keep 'em coming Sam.

--- In papercreters@yahoogroups.com, "samcrow" <sam@...> wrote:
>
> I am also new to Papercrete but I do have some experience with
> Grancrete.
>
> It hardens very quick, normal working time is less than 5 minutes.
> You can apply to itself, meaning you can do a partial, take a break
of
> an hour or day and mix a new batch and add on.
> The cost is about $55 dollars for 50 lb bucket delivered to your
door.
> It is very strong. It is not very light, lighter than Portland
cement
> but still heavy. It sticks (bonds?) to about anything except glass
> and shiny plastic. It is said to be waterproof if 1/8 inch thick
but
> my experiments had myriad hairline cracks which did leak water.
>
> Grancrete is a proprietary mixture including fly ash based on a
> relationship with Argonne National Labs which patented the parent
> product Ceramicrete. Ceramicrete was developed to encase nuclear
> waste material.
>
> Another manufacturer sells a version for filling potholes in roads.
> It sticks to concrete or asphalt, cures very fast, and is hard and
strong.
>