Floating island of pumice

(Craig G. Lewis) #1

So I’m watching TV and see this Floating Island (Not Plastic, Apparently there is no Real Island of Plastic) Yet one of pumice there is. https://www.livescience.com/22268-huge-pumice-island-floats-in-pacific.html

I think that this could be the main building material.

Capture the floating pumice with a ship and process it onboard, or ship to a building site for constructing the building block.

Biorock Experiments
(Wilfried Ellmer) #2

The interesting question:
Is building with captured natural pumice from a volcanic eruption more efficient in cost per real estate square meter, than the methods at hand already

I suggest you fit out a ship and process a little platform as a pilot project and tell us what your cost to the builder per square meter is…

Nevertheless if you can produce interresting data on the topic i will be the first to look at it with interest and an open mind…


So,… You gonna buy a boat first.

Then, you gonna sail the Pacific Ocean looking for pumice.

Then, (when you find pumice), you gonna collect it and use it to build a seastead.


(Wilfried Ellmer) #4

In the context of “light filler materials” for “advanced composite building” it is convenient to google up the term | leca | (light expanded clay aggregate)… it is probably a more economic way to get a light filler into your floating island, than the method sugested here

(noboxes) #5

If you merely want air in the composite to reduce it’s weight, just air-foam the cement at suitable locations within the hull.

(John) #6

Actually, there was a guy who built a plastic bottle island in Mexico…

(.) #7


(Craig G. Lewis) #8

So you make a plastic lasso with Large floating pipes. https://agruamerica.com/products/large-diameter-pipe/

Inside the 5-10’Dia pipe would be air create production and cement storage.

The volcanic rock can be harvested, recovered, blend to make layers upon layers of land mass.

The larger the island the better the stability of the Island.

This would be the most natural and cheapest way to make. Once you have so many base layers to work off, add the rebar/steel/fibers, for strengthening the land mass.

Could also have a Automatic Harvester like the sea bin http://seabinproject.com/ :slight_smile:

(noboxes) #9

Did you find a source of this floating rock in the quantity you need? Did you test it to find out how much water a cubic foot of it displaces? Is it in international waters, or do you need harvesting permission from some country?

(Craig G. Lewis) #10

Rock can be sourced from South Pacific https://grist.org/article/floating-island-the-size-of-new-jersey-discovered-in-south-pacific/

I have not tested the displacement Yet

“Pumice floats on water for the same reason, the overall density of the pumice (eg. 0.25 grams / cubic centimeter from Teide volcano) is less than the density than water (1 gram / cubic centimeter)”

Yes the main source is in international waters, and also in the water and shores of Vanuatu to the north, Tonga to the east, Kermadec arc to the southeast. https://www.wired.com/2016/11/nobody-knows-big-raft-pumice-came/

Seem that those are the places that need floating Island, it seems like it would be a great oppertuity for a Project.

Got the funds :wink:

(.) #11

Yes , and presto. Specially when you have the funds. -)

(Craig G. Lewis) #12

It will come. In time, I can/will give. Yet Like most, need a little to make a lot.

$400K invested in Fish Plant, leads to $1 - $20M in Fresh seafood sales

$1M invest in gold recovery project, lead to $30-100M in Gold, copper, Cobalt (Musk is looking for this now)

$2-10M invest in Graphite Mines and that with a $12B deposit for Multi $B to Trillions in Paint and films

(noboxes) #13

I guess i am tripping over the cost and ease of getting air. Because we are talking about the air in some volcanic rock which are floating about somewhere in the south Pacific Ocean in unknown quantities of cubic feet. Things float on the water here because they have air attached to them, usually. It’s like, if i have a 3" slab of concrete i want to float, i don’t think to get pumice, i think to put an air mattress under it. I keep referring to normal boats as bathtubs because the air in them is out of control, it will leave your boat in a split second if you get a wave into it. A pontoon boat hull holds the air inside it, like pumice does. Or a balloon. Or 2-liter pop bottles. Or a home-made air mattress shapped thing. And just for containing air, the air in your back yard is prolly cheaper overall than traveling to the south Pacific to get it.

(Larry G) #14

Pumice doesn’t float forever, it’s not a closed-cell foam.