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Eco block forms

Spud_Monkey

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Sep 15, 2018
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Your six
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Decommissioned
Spud, you seem handy with fab. Have you considered a used up mixer truck bought from a R-mix company? A few calls made may find you a mixer that has enough issues that they aren't willing to repair it anymore, but would work as an off road unit. As others have said, get the raw materials on hand and roll your own concrete. A short conveyor line with a hopper at the bottom can batch the truck. If you have a small skid steer and a bank to back the truck up to, you could widen the charge hopper enough to dump the loader bucket into it.
Y'all going to drive my wife nuts with giving me ideas like this though is feasible, problem is how far away I would have to haul said equipment. This is Montana, they don't have many people here and even less amount of equipment and even lesser amount of equipment they will let go of.

Funny- I had actually written something similar all out, but erased it as being too much work for no more wall than he has to pour. :)

My idea was pulling the mixer off the truck (find one with a dead truck and a "mostly" worn out mixer), build a hopper and chute to load with the tractor (ramp if needed). Run the mixer off the wet kit on his semi. Unload the mixer into the loader bucket, haul to walls and floor. 6-7 yards at a time. ;)

Getting the mixer off the truck makes it a lot easier to load.

My other concern was having enough water to make the large batches.
Got plenty of water, and I do need to build a shop or two besides the house so it might seem feasible...
 

repowerguy

Senior Member
Joined
Mar 18, 2015
Messages
810
Location
United States southern Ohio
Occupation
mixer truck mechanic
Funny- I had actually written something similar all out, but erased it as being too much work for no more wall than he has to pour. :)

My idea was pulling the mixer off the truck (find one with a dead truck and a "mostly" worn out mixer), build a hopper and chute to load with the tractor (ramp if needed). Run the mixer off the wet kit on his semi. Unload the mixer into the loader bucket, haul to walls and floor. 6-7 yards at a time. ;)

Getting the mixer off the truck makes it a lot easier to load.

My other concern was having enough water to make the large batches.
A clapped out precaster special isn’t hard to find, just gotta know where to look.
With no water reducing admixtures you’re gonna need about 35 gallons of water per yard. With low range and high range if you’re fancy the water goes down a lot.
 

Spud_Monkey

Senior Member
Joined
Sep 15, 2018
Messages
6,436
Location
Your six
Occupation
Decommissioned
A clapped out precaster special isn’t hard to find, just gotta know where to look.
With no water reducing admixtures you’re gonna need about 35 gallons of water per yard. With low range and high range if you’re fancy the water goes down a lot.
Yeah that's the problem, knowing where to look. Will scour across the world wide web and see what pops up.
 

Delmer

Senior Member
Joined
Jan 3, 2013
Messages
8,864
Location
WI
I'm a couple degrees south of you, and a lot of degrees east of you. I've never lived through a winter in your area, so that's understood. Earthships are designed for and work decent in the four corners area, if I was you, I'd be moderating that design for your climate, less mass, less glass, more insulation. Also, in floor heat, GRAVITY, wood fired I'm guessing. 16" concrete is mostly wasted for thermal storage and strength. Arch that back wall and you could get away with 4-6" reinforced concrete back there, that would be more than adequate for the solar gain you'll get and economically store. The soil behind the concrete can sub for the extra concrete, neither one will do squat day to day. For your climate, look up sand bed seasonal storage if you're still considering seasonal storage, that is, thicker than a couple inches from surface. you can hook the wood heat to that, unless you're way sunnier than I'm assuming, you'll be using the wood heat, and the storage will make it easier to use.

Or forget the concrete and build a block wall, much easier than forming, mixing. Or if you have lots of rocks, slip form the walls with stone layered with concrete/mortar.

repowerguy, what do you think of this one? decent price? probably make a $1,000 difference if it was closer, but it's the range of what I see advertised. Call your local redimix place is probably the best answer.

https://wausau.craigslist.org/hvo/d/minocqua-1985-advance-fdm-mixer-truck/7188365381.html
 

repowerguy

Senior Member
Joined
Mar 18, 2015
Messages
810
Location
United States southern Ohio
Occupation
mixer truck mechanic
I'm a couple degrees south of you, and a lot of degrees east of you. I've never lived through a winter in your area, so that's understood. Earthships are designed for and work decent in the four corners area, if I was you, I'd be moderating that design for your climate, less mass, less glass, more insulation. Also, in floor heat, GRAVITY, wood fired I'm guessing. 16" concrete is mostly wasted for thermal storage and strength. Arch that back wall and you could get away with 4-6" reinforced concrete back there, that would be more than adequate for the solar gain you'll get and economically store. The soil behind the concrete can sub for the extra concrete, neither one will do squat day to day. For your climate, look up sand bed seasonal storage if you're still considering seasonal storage, that is, thicker than a couple inches from surface. you can hook the wood heat to that, unless you're way sunnier than I'm assuming, you'll be using the wood heat, and the storage will make it easier to use.

Or forget the concrete and build a block wall, much easier than forming, mixing. Or if you have lots of rocks, slip form the walls with stone layered with concrete/mortar.

repowerguy, what do you think of this one? decent price? probably make a $1,000 difference if it was closer, but it's the range of what I see advertised. Call your local redimix place is probably the best answer.

https://wausau.craigslist.org/hvo/d/minocqua-1985-advance-fdm-mixer-truck/7188365381.html
The front discharge Advance is the best way to place concrete hands down. An Advance will plow through mud where a rear discharge or an Oshkosh front will be stuck. The single frame Advance [ and Phoenix and Maxim] will move and twist and flex to keep going. Now the bad news, that same single frame is good for about 15 years or so then the stress cracks begin usually at the spring hangers and behind the rear pedastal on no tag axle models. On an old TET-Advance from the 80's it's likely to have been re-railed before so it could be fine. At $5500,well that's maybe about $500 more than what I would spend on a 85 model front.
Show up to buy with cash and your best middle eastern haggling game and it may well be yours. The usual mechanical and drum inspections beforehand are expected.
 

Spud_Monkey

Senior Member
Joined
Sep 15, 2018
Messages
6,436
Location
Your six
Occupation
Decommissioned
I'm a couple degrees south of you, and a lot of degrees east of you. I've never lived through a winter in your area, so that's understood. Earthships are designed for and work decent in the four corners area, if I was you, I'd be moderating that design for your climate, less mass, less glass, more insulation. Also, in floor heat, GRAVITY, wood fired I'm guessing. 16" concrete is mostly wasted for thermal storage and strength. Arch that back wall and you could get away with 4-6" reinforced concrete back there, that would be more than adequate for the solar gain you'll get and economically store. The soil behind the concrete can sub for the extra concrete, neither one will do squat day to day. For your climate, look up sand bed seasonal storage if you're still considering seasonal storage, that is, thicker than a couple inches from surface. you can hook the wood heat to that, unless you're way sunnier than I'm assuming, you'll be using the wood heat, and the storage will make it easier to use.

Or forget the concrete and build a block wall, much easier than forming, mixing. Or if you have lots of rocks, slip form the walls with stone layered with concrete/mortar.

repowerguy, what do you think of this one? decent price? probably make a $1,000 difference if it was closer, but it's the range of what I see advertised. Call your local redimix place is probably the best answer.

https://wausau.craigslist.org/hvo/d/minocqua-1985-advance-fdm-mixer-truck/7188365381.html
I have planned to arch the walls along the back with if you look at the plans they include insulation along the back wall. I have studied Earthships for over 10 years now and understand the whole functionality of them and they have one built in Canada where it's close to the climate that is here. Way it works is sun comes in winter time and hits back wall that will store the heat along in to the floor which having porous bricks wouldn't retain the heat as solid pour would and in summer the sun only comes in where the greenhouse or front foyer is gets it hot and as the heat escapes through top hatches it pulls by convection cool air from cool tubes in back of the house to front of the house. The roof unlike Earthships will be buried under few feet and it being clay I doubt water will trickle down that far even so it will be covered with vapor barrier/waterproofing for any droplets that make it down and the roof will slop back and be arched too. No rocks here only silt stone and rarely can find scoria that's not worth picking up, though there is clay rocks here that are fragile.
Sixteen inches may be too much but there is no 100% way to know unless you are engineer in this field of thermal mass and what is in this climate, it's just what the max is on this thickness, I will experiment with time before I start building.
As for sand bed seasonal storage I will divulge deeper into that later tonight, seems interesting. There will be backup heat in the house, but from what I experienced last winter staying out there towards the end in a camper it's not too bad.
 

crane operator

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Mar 27, 2009
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Location
sw missouri
https://www.alibaba.com/product-det...m=a2700.wholesale.deiletai6.10.78da3b7cJjRPzn

Hbea04a8d23164b6eafaeb3e3444d7d6a3.jpg


"Ready to ship!"
 

DMiller

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Feb 21, 2010
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Hermann, Missouri
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Cheap "old" Geezer
When Pour the walls need to continuous pour or will leak at every seam regardless the sealant or rebar or any other attempts to not allow to leak, same as will ECO Blocks. The key to concrete is Solid Base Footer then situate wall atop that, pour as dry as can accept into forms then use vibrating compactor(Donkey DIck) to force trapped air and water to surface. Too wet all the aggregate floats out to bottom, all together Too dry and air will not escape nor will the mix adhere well to aggregate. Is a science to this.
 

Delmer

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Jan 3, 2013
Messages
8,864
Location
WI
Do what you want. My suggestions: based on your elevation and latitude, I bet you don't have a lot of cooling degree days? no two week stretch of hot humid weather expected? Ditch the cooling tubes, those are a poor cobble job patch for an overheating earthship in AZ in August and September when the temp is at the highest, and the sun is already going lower in the sky. Open your windows at night, and close them during the hot days, and I bet you never miss AC. Humidity/condensation is one drawback of mass, why you don't see mass used as much outside of the West. In FL you'd want a doublewide on blocks, least mass. I'd guess you can live with it, but you'll have more issues than AZ, NM, CO, and UT.

Less glass, 20x60 is closer to the doublewide. I'd want a more compact footprint to be able to heat it comfortably when the snow is blowing horizontal for days on end of below zero. They put doublewides all across Canada I'm sure, but I wouldn't recommend it. I know the theory, I've seen them in the midwest, it's not pretty, I've never seen them in their native habitat. I know what I've done and how it's worked, and what I'd do differently next time. Earth sheltering or underground/earth cover is nice for blast protection/emf/emp but it's a bitch to waterproof. Insulation aboveground is cheaper than underground.
 

Spud_Monkey

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Joined
Sep 15, 2018
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Your six
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Decommissioned
Do what you want. My suggestions: based on your elevation and latitude, I bet you don't have a lot of cooling degree days? no two week stretch of hot humid weather expected? Ditch the cooling tubes, those are a poor cobble job patch for an overheating earthship in AZ in August and September when the temp is at the highest, and the sun is already going lower in the sky. Open your windows at night, and close them during the hot days, and I bet you never miss AC. Humidity/condensation is one drawback of mass, why you don't see mass used as much outside of the West. In FL you'd want a doublewide on blocks, least mass. I'd guess you can live with it, but you'll have more issues than AZ, NM, CO, and UT.

Less glass, 20x60 is closer to the doublewide. I'd want a more compact footprint to be able to heat it comfortably when the snow is blowing horizontal for days on end of below zero. They put doublewides all across Canada I'm sure, but I wouldn't recommend it. I know the theory, I've seen them in the midwest, it's not pretty, I've never seen them in their native habitat. I know what I've done and how it's worked, and what I'd do differently next time. Earth sheltering or underground/earth cover is nice for blast protection/emf/emp but it's a bitch to waterproof. Insulation aboveground is cheaper than underground.
Where I live at there is very low humidity, only gets 13 inches of rain a year and ton of sunlight! Storms move through fast cold fronts and heat waves last a week at most unless some freak storm or one is lined up behind the other one.
I'm curious of where you got your experience/knowledge from, built something of your own, been in or built any of them i.e. passive solar homes, earth bermed homes or Earthships?
 

Tugger2

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Mar 22, 2018
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British Columbia
OIP.rVniNYxQDXulw0rS8lBzAAHaFj

If were doing a home pour and i couldnt get ready mix id find one of these. Easy to fix up an old one and easy to maintain. I have worked with these up in logging camps over the years doing shop floors ,we did a small dam (10' high) for the camp water system with one. Id bet you could scout out one of these somewhere.
 

JPV

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Aug 20, 2015
Messages
756
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S.W. Washington
I was going to suggest those ICF blocks too, I am not sure if they would work in that application or not but they sure are slick to build with.
 

Spud_Monkey

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https://www.foxblocks.com/
Built a few houses with these won't use anything elseView attachment 225419
Ah ICF's yes I thought about them though problem with passive solar home is they will insulate from collection of heat in winter time when sun shines on the wall.
https://dubuque.craigslist.org/hvo/d/dyersville-concrete-mixer-parts/7189711794.html

If you're set on concrete mixed yourself, then this might be a good way to go. Probably find one closer though, and be worth it to spend a little more. If you do head this way with an empty trailer, bring me an old rust free pickup, I'll pay your gas money here:D only half kidding.
Not me set on concrete mixing it's, you aren't getting a 70k lb cement truck up the last 3 miles of ridge and when you get to the property where house will be sitting in behind a U shaped ridge of different elevation which then will require a pumper truck too.
I know cause well I tried it with my rig at 28k lbs and sunk it after this picture.9055CE2F-07BA-489B-9BF0-52A0A11AAA01.jpeg
 

Delmer

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Jan 3, 2013
Messages
8,864
Location
WI
You've got a longer wheelbase, poor weight balance for traction, and undriven axles. A mixer would make it, wouldn't need much of a road smoothed out. They go crazy places and get stuck all the time, farmer/hippie bridges are the worst. If they get stuck, all they care about is being able to transfer the load to a second truck, and get pulled out by something, eventually. Collapse a bridge, even a small one, it ruins your morning.

I haven't thought of a way to do ICF with the mass open to the inside. I suspect most solar people are too individualistic to use a product like THAT anyway:rolleyes: you and me both Spud.

Check your private messages.
 
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