Papercrete Brick

Here’s a follow-up to our DIY Papercrete Brick Press.

Our mix (by volume) was 3:1
(3) shredded office paper (newspaper works well also) Soak your paper for at least one day.
(1) Portland cement
Add water as needed. Make your mix a little drier than oatmeal or experiment with it until you get the consistency you like.

Press form block (interior dimensions)
W: 5-1/2″
D: 5-1/2″
L: 12″

Papercrete block dimensions (after drying)
W: 5-3/8″ (loss of -1/8″)
D: 4-1/2″ (loss of -1″ due to compression)
L: 11-5/8″ (loss of -3/8″)

Final brick dry weight
4.8 lbs
2.2 kg

It was hard to say exactly how long it took to completely dry since we had it in the house (cold/wet weather during our test) but we figure it would take 3-4 days in warm/hot sunny weather, turning it twice a day.

It is very sturdy, light and hopefully a good building material.

Our next building test will be on latex concrete roofs and wall panels.

Stay tuned for that.

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4 thoughts on “Papercrete Brick

    • Hi Chris, we’re going to use them when we extend the entry way, and if they work well,the North wall to the new green house. We’ll keep you posted on how they work during our build. Thanks for visiting.

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