Charcoal concreete?

I think aircrete would be the ultimate material for insulation for a slab on grade construction. Pour in place over poly, then a minimum slab on top.

And for skirting insulation also, just lay it in a trench around the building footprint.


I used Dawn soap the first time. And then I used Suave shampoo. The shampoo made foam a little faster, but they both worked.


We have done the bottle thing. It works for light but I can’t see any help with insulation.

like others have said, charcoal isn’t organic any more, at least for practical distinction. It does not rot, or otherwise get consumed by microorganisms.

Why use cement in the mix at all K. Why not just apply a layer of char between the two layers of flooring. Maybe the cement will help to stick it all together nd make it less messy.

Interesting idea.

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hi garry said the aircrete chemicals could be got in europe. we have and make aircrete in canada as well any comurical concrete maker has it they add a powder and mix it in the amount they add controls the amount of air in it. but the aircrete is not for insulation it doiesnt seem to matter how much you put in. here in ontario i worked for beamish construction we use to sell a fair amount of it. for garage floors i dont know why ?



question what is a structure ?


this is what google says:
Structure definition . Within the context of the built environment , the term ’ structure ’ refers to anything that is constructed or built from different interrelated parts with a fixed location on the ground

iI dont know what it is but it looks like abstract art or somthing. I couldnt see somthing built using that. But i am old fashion i guess.

As i have a lot of boiler ashes and char, i just mixed with ciment and some lime into a test brick.
Has to be charcoal concrete, yes,…

Purpose and effect: cooling by evaporation
Goal: industrial cooling of process water for one
And making bricks for a sun facing wall at the other…
as the blocks retain water and evaporate slowly, they are amazingly cool to the touch… about 10ºC cooler then the room temp.
next testing: on the wishlist… ( building a test rig )

Truth is: i keep adding things on my wish list and my to do list… But the accomplished list is not getting longer…


Iran launched the ballistic missile attacks in retaliation for the U.S. killing of Iranian Maj. Gen. Qasem Soleimani in a drone strike in Baghdad. Eleven missiles hit al-Asad air base west of Baghdad, leaving wreckage and deep craters at a facility where more than 1,000 U.S. service members were based along with Iraqi forces. Another missile landed outside the northern city of Irbil but resulted in less damage.

At least one of the missiles at al-Asad struck just yards from a bunker with a service member in it, Maj. Gen. Alex Grynkewich, a senior U.S. commander for the U.S. mission in Iraq and Syria, said Wednesday.

On Jan. 13, U.S. military officials told reporters visiting al-Asad that “dozens” of service members were suffering from concussion-like symptoms. But updates have been vague, with officials declining to answer questions until Friday about whether anyone needed to return to the United States for additional treatment or if anyone had returned to duty.


Larry, could you be thinking of standard air entraining admixture?

Air entrained concrete is specified anywhere salt or other moisture and freezing temperatures will exist, to avoid spalling and make a workable mix with less water. There is a maximum spec for entrained air in such mixes. Aircrete is right off the opposite end of the scale regarding percentages of air, and typically is made up by adding a specific volume of special foam to a certain amount of fine concrete slurry.


I love the idea koen. Using this to dry and cool an air space using direct solar. Very good.


yes that is what i was talking about it prevents spalding in our cold weather. like I told you i wasnt sure why they used it but i thought that was what you were talking about sorry.I read somwhere in the states lower state dont remember were but the guy mixed durt with concrete and made adobe bricks by packing it. for building houses another mixed in paper and other stuff with concrete to make different products another thing for you to try . also to make rocket stoves they mix in fermica and stove ash for insulation???


You’ve heard right. I think you are referring to CEB, compressed earth blocks. Original concept originated in Guatemala. Apparently they have a compressive strength better than baked clay bricks. And can stand indefinite water submersion. Definitely not adobe, better than that.

Perlite can be used to lighten refractory mixes.


Had no idea the place was built like that. Must have been a huge earth-shaking BOOM! for the soldiers to have concussion symptoms. Would not have wanted to be anywhere nearby. Maybe an outer layer of aircreete / charcoal creete as a shock-absorber?? Thanks for the picture, Henry!


I havent checked much on it lately but when i was checking it out they called it adobe blocks that was some time ago it may go by soom other name now. but they ramed the mixture . maybe they improved the process by now. the cement was put in at that time to make it more water proof. that was back in the 80,s. i am not old just dating myself i guess.


There is also cinva ram and ceta rammed earth blocks. similar


ok like I said i haven’t looked at them in years thought about trying it years ago but life just got in the way now i have lost the ambision. i just don’t have the energy any more. this heat drains me.


I wanted to say something about using charcoal to filter water . Using a type of charcoal concreete
to filter agricultural water in a way best left to Army Corp of Engineers .



SLOW SAND of 1 cubic meter passes about 2 liters/min, and does a limited bacteria removal.
PRESSURE SAND of 1 cubic meter passes about 40gpm and must be backwashed daily.
DIATOMACEOUS EARTH removes small suspended particles at high flow rates, must be daily backwashed and is expensive.
POROUS STONE/CERAMIC filters are small but expensive, and do not effect chemicals, bacteria or odors.
PAPER or CLOTH filters are disposable and filter to one micron, but do not have much capacity.
-COMPRESSED CHARCOAL/CARBON BLOCK is the best type of charcoal filter, can remove chemicals and lead, but is easily clogged, so should be used with a sediment prefilter.
-GRANULAR CHARCOAL is cheaper, but water can flow around the granules without being treated.
-POWDERED CHARCOAL is a very fine dust useful for spot cleaning larger bodies of water, but is messy and can pass through some filters and be consumed.
REVERSE OSMOSIS uses a membrane with microscopic holes that require 4 to 8 times the volume of water processed to wash it in order to remove minerals and salt, but not necessarily chemicals and bacteria.
ENZYMES &BACTERIA combined can remove contaminants, reduce sludge, and even digest oil. See recent article on enzymes & bacteria.
PLANTS There are numerous plants, animals and organisms that are quite effective in filtering water.

REYKJAVIK, Iceland — Using enzymes and bacteria as separate methods for water filtration is not new to the industry but a combination of both is an innovation. Filtration company ZymeTech provides such a solution, which is a more efficient and eco-friendly filtration approach, according to the company’s managing director Alan Badenhorst, cited by Engineering News Online.

Badenhorst explained that conventional methods of filtration produce an amount of residue that remains inside the water container and needs to be disposed of, whereas the combination of enzyme and bacteria ensures a reduced amount of sludge. The by-product that remains after the filtration can then be further cleaned and reused. Traditional ways of cleaning the residue involve machines that pump it out and then transport it to hazardous-materials landfills, which pollute the environment.

According to ZymeTech operations director Ilan Zlotnick, the enzyme/bacteria method of filtration eliminates the need for using such machines because what is left in septic tanks or grease traps can often be recycled. He pointed out that enzymes can be used to replace chemicals and contribute to a more efficient use of raw materials, energy and water, which benefits both the environment and industry.

Creating the exact formulation of enzyme and bacteria to ensure effective filtration is not a simple task, Badenhorst explained. Various types of bacteria and enzymes are produced in Belgium by ZymeTech’s principal Realco, and each of them is intended to break down different type of organic waste matter including matter found in grease traps or septic tanks. Enzymes act like a natural filter to contamination and break it into small particles that can be then consumed by bacteria, which are all biodegradable and would die naturally in the absence of enzymes, he revealed.

Using bacteria and enzymes separately has its disadvantages, as enzymes may break down sludge but tiny particles of it will still be present in the effluent and accumulation of these particles will eventually clog drains. On the other hand, using bacteria only will not fully remove contamination from the water, as bacteria will not be active long enough to deal with the large sludge particles. Combining the two actually provides a perfect solution for filtration, as the way enzymes and bacteria react complement each other to ensure efficacy, Badenhorst claimed.

He noted that the technology has attracted significant interest from industries worldwide and increasingly in South Africa, where more businesses are starting to embrace a more environmentally friendly approach to their operations. The company said that the technology can also be used for filtration of water in areas where water pollution is a serious problem, especially in many parts of Africa, where access to pure drinkable water is restricted for many people. A solution to this problem has recently been introduced in South Africa by ZymeTech, which launched a product that can be used by campers and hikers to purify water and make it instantly ready for consumption.