Its true within limits. In practice the solids in the pc mix will settle down if the mix is too thin, and you cant stop that. Also pc shrinks a bit as it sets & dries.
If you need to increase the strength & density, just up the cement content and compress the mix in the mould.
--- In papercreters@yahoogroups.com, "Ales Patera" <dr.meduza@...> wrote:
>
> Hi
> I just want to ask if I understand it right how to make desired mount of papercrete with density I want
>
> For example if I want 1 m3 (35 cu ft) of pc with density 650 kg/m3 (40.5 lb/ft3)
> I'll take 1m3 of water and put into it 650kg of ingredients - dry weight (like 470kg of paper, 120kg of cement and 60kg lime)
> And if I want pc with density for example 350 kg/m3 I just put less ingredients into same amount of water, maybe with little recipe adjustment.
>
> Is my idea of it right?
> So the density of a final product is controlled by density of paper slurry I'll make and then add other ingredients by weight ratio of dry paper.
>
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