Dustcrete FAQ Part 1

Having lived in our dustcrete addition for two years, I have realized many things. Viewers of this channel have had questions, as well. After witnessing the durability, low cost, construction ease, and thermal efficiency of this material, I now prefer it to straw bale, cob, aircrete, and slipstraw. In this video, and the next, I answer the most frequently asked questions from the comments section of my original dustcrete video.
The Original video can be viewed here:
• Dustcrete
More videos about this project can be found here:
• Natural Building
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[@metpeter3131]

It's written already, but thumbs up for the helpfull follow-up!
I think it is very admirable you answer a lot of questions, thank you! Good luck!

[@FirstNameLastName-okayyoutube]

I got a $14 corded drill and a $3 cement mixer attachment. I had to use duct tape at the connection because of the soft metal but I've done about 600 gallons so far and I'm very happy that I didn't spend thousands of dollars

[@FirstNameLastName-okayyoutube]

The structure of this follow-up video I just have to say I have a lot of respect for you

[@radicalgastronomy]

Thank you

[@someguy1559]

Love to see a good follow up from a knowledgeable fella. Thanks !

[@radicalgastronomy]

My pleasure!

[@harndenjames]

The Limestone in Winnebago County IL is Dolomite Limestone.

[@beavercreekdesign]

thanks for the vid!

[@zgoat4127]

Awesome info Brother , thank you kindly for sharing your experience, Absolutely awesome

[@radicalgastronomy]

My pleasure. Glad it’s helpful.

[@fiachragibbons4779]

You are wonderful. Merci beaucoup!

[@remoteandrestless]

Loved the original video. Thanks for the follow up video. I have plenty of sawdust so I see a lot of dustcrete in my future

[@radicalgastronomy]

Awesome. More info soon.

[@remoteandrestless]

@radicalgastronomy my area will be a very high humidity area so it will be another good test of the materials

[@radicalgastronomy]

@@remoteandrestless I’d love it if you keep us posted…for science!

[@charlescarruthers652]

Thank you for the feedback!

[@BootsOfLeather]

Been waiting for this. Keep fighting the good fight.

[@radicalgastronomy]

Part 2 next Sunday!

[@melcondit1356]

Thanks for sharing your researched knowledge and experienced observational knowledge too !
You truly are a gem of information.
Again, thanks for your efforts of producing and sharing.
You are appreciated
Just sayin
😎👍

[@radicalgastronomy]

Thanks for saying that. I’m always down for encouragement!

[@samuelyeates2326]

Thanks for the update! I am looking into building a similar structure.

[@radicalgastronomy]

Great!

[@thelook87]

Thanks, can't wait to see your further testing!

[@radicalgastronomy]

You bet.

[@FirstNameLastName-okayyoutube]

I did some experiments and I kept finding that the cement helped a lot with a cracking. The clay just made things worse. It could be a preparation issue.
I can say aluminum foil has been a game changer. Mostly in the roof at the moment The infrared light is an important part to understand about insulation. And it seems the coverage only needs to be on the sunny side.

[@radicalgastronomy]

Nice!

[@AutoNomades]

Can't wait to see the lime / lime clay experiments ! By the way: are the walls breathing ?

[@radicalgastronomy]

It’s not just you. The walls are BREATHING!

[@AutoNomades]

Ok, nice ! (because i was wondering with portland cement...) @@radicalgastronomy What do you mean by "it's not just me" ?

[@radicalgastronomy]

@@AutoNomades just a joke. There’s a meme.

[@AutoNomades]

Ok, sorry I didn't get it, as english is not my mother's language ^^ Is it about when I told "I can't wait" ? @@radicalgastronomy

[@radicalgastronomy]

@@AutoNomades it was about “are the walls breathing” as in, are the walls breathing, or is it just me? (Like they are alive 😉)

[@JS-qj8wy]

I'm no expert, but I believe the dolomite lime contains more pozzolans. These cause lime to have a hydraulic set like Portland cement. You could try adding diatomaceous earth, fly ash, etc in your tests.

[@radicalgastronomy]

Hadn’t thought of using DE. Interesting. 🤔

[@AutoNomades]

Have you experimented (or have review from others experimenters) about loard bearing dustcrete structures ? What would be the minimal thickness for instance for a wall? And roof sheeting ?

[@radicalgastronomy]

I’ll cover this next week, but I believe this is possible with a reinforced bond beam at the top of the wall. If I was doing it I would wait 60 days after packing and form stripping. Perhaps I’ll do some load tests at different thicknesses. I wonder about corners, too…

[@AutoNomades]

What is the wood you're using, what are the best ones, the ones to avoid ?

[@radicalgastronomy]

I’m using mixed spruce and fir. Most wood types should work, but hardwoods may be slightly less insulating. I haven’t tried, so I can’t say for sure.

[@johnsnediker9175]

Didn't explain what dustcrete is and I can't find your original video you referenced. Regardless, is very interesting.

[@radicalgastronomy]

Here you go!
th-cam.com/video/XyirHL9TvGE/w-d-xo.htmlsi=T-l5vqvP5WxOVE1U

[@Erribell]

If it shrinks as it cures why not make them into big cinderblock type bricks and after curing use the bricks as a building material?

[@radicalgastronomy]

That’s worth a shot, but there is a lot to be said for forming in place.

[@franciscobenitez3188]

Would a lime made with seashell be on equal quality or lesser quality than natural lime

[@radicalgastronomy]

Equal. Seashells are a great source for lime.

[@chrisbrumbaugh9936]

How much material do you estimate you used in crete?

[@radicalgastronomy]

A 5’x8’x6.5” wall takes a 92# bag of Portland, and a 50# bag of lime. More about this next week!

[@DrowsyPoet]

Jubal's dad